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Professor at Department of Electrical Engineering

Dr. Donald Butler received his B.A.Sc. in Engineering Science: Physics Option from the University of Toronto (1980) and his M.S. (1981) and Ph.D. (1986) from the University of Rochester in Electrical Engineering. He performed his graduate research at the Laboratory for Laser Energetics investigating the nonequilibrium behavior of superconductor thin films in response to picosecond electrical and optical excitations. He continued his graduate research as a Research Associate in 1986. In 1987, he joined the Electrical Engineering Department at Southern Methodist University as an Assistant Professor. In 1993, he was promoted to the rank of Associate Professor and Professor in 2001. He joined the faculty of Electrical Engineering at the University of Texas at Arlington in 2002. His current research is focused on microsensors, flexible microsensors, uncooled infrared detectors, energy harvesting, polymer nanocomposites, and other microelectromechanical devices (MEMS). He has published 1 book, 9 book chapters, more than 170 journal articles and conference presentations, and holds 8 patents with 4 additional patents pending. Dr. Butler is a senior member of the IEEE and member of the Optical Society of America. Some examples of his professional service include serving as chair of the Dallas Chapter of the Electron Device Society (1988-1994), Dallas Section Chair (2001-2002), and IEEE Electron Device Society Regions/Chapters Committee (1999-2007). He also served as the Symposium Chair for the 2001 IEEE Emerging Technologies Symposium, on the organizing committee for the 2004 International Microwave Symposium as a member of Steering Committee, Special and Focus Sessions Chair, and Webmaster. He served on the Technical Program Committee for the 21st International Conference on Noise and Fluctuations (ICNF 2011). He is a recipient of the IEEE Third Millennium Medal. He was an Electron Device Society Distinguished Lecturer (2000-2005). He was a topical editor for Applied Optics/Optical Technology & Biomedical Optics (2003-2009).

University of Rochester
Ph.D.
Electrical Engineering
University of Rochester
M.S.
Electrical Engineering
University of Toronto
B.A.Sc.
Engineering Science: Physics Option
September 2002
Ongoing
Professor
Electrical Engineering, The University of Texas at Arlington
September 2002
Ongoing
Professor
Nanotechnology, College of Engineering, Office of the Provost and Vice President for Academic Affairs, Office of the President, The University of Texas at Arlington
July 2013
Ongoing
Professional
American Vacuum Society
March 2003
Ongoing
Professional
Optical Society of America
September 1978
Ongoing
Professional
Senior Member of IEEE
Moinuddin Ahmed and Donald P. Butler, “Design and Simulation of Device-level Vacuum Packaged Microbolometer with Integrated Optical Filter,” IEEE Sensors Journal, accepted.
Journal Article
Accepted
Md. Sajeeb Rayhan, Donald P. Butler, and Zeynep Çelik-Butler, “Ultra-thin Film Piezoelectric AlN Cantilevers for Flexible MEMS Sensors,” To be presented at the 2015 IEEE Sensors Conference, Nov. 1-4, 2015, Busan, Korea. Conference Proceedings.
Conference Proceeding
Accepted
Yi Li, Zeynep Çelik-Butler, and Donald P. Butler, “A Piezoelectric Micro-energy Harvester for Nanosensors” To be presented at the 2015 IEEE Sensors Conference, Nov. 1-4, 2015,  Busan, Korea. Conference Proceedings.
Conference Proceeding
Accepted
Md. Sohel Mahmood, Zeynep Çelik-Butler, and Donald P. Butler, “Design and Fabrication of Self-packaged and Flexible MEMS Accelerometer,” To be presented at the 2015 IEEE Sensors Conference, Nov. 1-4, 2015, Busan, Korea. Conference Proceedings.
Conference Proceeding
Accepted
2015
Bhargav P. Nabar, Zeynep Çelik–Butler, and Donald P. Butler, "Self-Powered Tactile Pressure Sensors Using Ordered Crystalline ZnO Nanorods on Flexible Substrates Towards Robotic Skin and Garments," IEEE Sensors Journal 15, pp. 63-70 2015. published on-line July 2014 (DOI 10.1109/JSEN.2014.2337115).
Journal Article
Published
2015
Yi Li, Zeynep Celik-Butler, and Donald P. Butler, “A hybrid electrostatic micro-harvester incorporating in-plane overlap and gap closing mechanisms,” Journal of Micromechanics and Microengineering, 25 (2015) 035027 (10pp) Feb. 2015. doi:10.1088/0960-1317/25/3/035027.
Journal Article
Published
2015
Moinuddin Ahmed and Donald P. Butler, “Modified lead titanate thin films on gold electrodes for pyroelectric infrared detectors,”Infrared Physics and Technology 71, pp. 1-9, July 2015. available on-line 3/4/2015. http://dx.doi.org/10.1016/j.infrared.2015.01.028
Journal Article
Published
2015
Moinuddin Ahmed, Murali Chitteboyina, Donald P. Butler, and Zeynep Celik-Butler, “Micromachined Absolute Sensor in a Flexible Substrate with Nichrome Piezoresistors,” IEEE/ASME Journal of Microelectromechanical Systems. DOI 10.1109/JMEMS.2015.2405071.
Journal Article
Published
2014
Donald P. Butler and Zeynep Celik-Butler, "Conformal MEMS Sensors,” (Invited) Technologies for Smart Sensors and Sensor Fusion, Editors, Dr. Kevin Yallup and Dr. Kris Iniewski, Taylor & Francis Group, LLC, CRC Press, ISBN-10: 1466595507, ISBN-13: 978-1466595507. Publication Date: April 14, 2014. (provided cover image)
Book Chapter
Published
2014
Moinuddin Ahmed and Donald P. Butler, "Bulk property of 1/f noise for piezoresistive Ni/Cr thin films in pressure sensors on flexible substrate," Microsystem Technologies, Dec. 2014. DOI 10.1007/s00542-014-2387-1.
Journal Article
Published
2014
Bhargav P. Nabar, Zeynep Çelik–Butler, and Donald P. Butler, "NEMS Vibrational Energy Harvester using Piezoelectric ZnO Nanorod Carpet," Nano Energy 10, pp. 71-82 Sept. 2014. (doi:10.1016/j.nanoen.2014.07.023), published on-line Aug. 2014.
Journal Article
Published
2014
Moinuddin Ahmed, Donald P. Butler, and Zeynep Celik-Butler, "Low-Profile, Self-Packaged, Uncooled Microbolometer on a Flexible Substrate towards an Infrared Radiation Sensitive Skin," Presented at the  2014 IEEE Sensors Conference, 2-5 Nov. 2014, Valencia, Spain. Conference Proceedings.
Conference Proceeding
Published
2014
Md. Sajeeb Rayhan, Donald P. Butler, and Zeynep Celik-Butler, "MEMS-based ultra-thin piezoelectric cantilevers with AlN thin films for improved sensitivity" 2014 IEEE Sensors Conference, 2-5 Nov. 2014, Valencia, Spain. 
Conference Paper
Published
2014
Md. Sajeeb Rayhan, Donald P. Butler, and Zeynep Celik-Butler, "Modeling, Fabrication and Characterization of MEMS Piezoelectric Cantilevers with AlN Thin Films," Presented at the 2014 Texas Chapter of the American Vacuum Society Conference, 6-7 Aug. 2014, Dallas, TX.
Conference Paper
Published
2013
Moinuddin Ahmed and Donald P. Butler, “High pyroelectric coefficient modified lead titanate thin films using gold electrodes,” Electronics Letters 49, pp. 952-953 (2013).
Journal Article
Published
2013
Moinuddin Ahmed and Donald P. Butler, "Flexible Substrate and Release Layer for Flexible MEMS Devices", Journal of Vacuum Science and Technology B. 31(5), 050602 Sep/Oct 2013. http://dx.doi.org/10.1116/1.4816938. (Top 20 downloaded paper from JVST-B in Aug. 2013.)
Journal Article
Published
2013
Moinuddin Ahmed, Murali Chitteboyina, Donald P. Butler, and Zeynep Celik-Butler, “Micromachined Force Sensor in a Flexible Substrate,” IEEE Sensors Journal: Special Issue on Flexible Sensors and Sensing Systems 13, pp. 4081-4089 (2013) . published online 15 July 2013. 
Journal Article
Published
2013
Rohit Kilaru, Zeynep Celik-Butler, Donald P. Butler, and Ismail Erkin Gönenli, “NiCr MEMS Tactile Sensors Embedded in Polyimide, Towards a Smart Skin,” IEEE/ASME Journal of Microelectromechanical SystemsSystems 22, pp. 349-355 (2013).
Journal Article
Published
2013
Bhargav Nabar, Zeynep Celik-Butler, and Donald P. Butler, "Self-Powered, Tactile Pressure Sensing Skin using Crystalline ZnO Nanorod Arrays for Robotic Applications," Presented at the 2013 IEEE Sensors Conference, 4-6 Nov. 2013, Baltimore, MD. Conference Proceedings.
Conference Proceeding
Published
2013
Yi Li, Zeynep Celik-Butler, and Donald P. Butler, "Design and Optimization of an Electrostatic Micro-Harvester for Sensors Applications," Presented at the 2013 IEEE Sensors Conference, 4-6 Nov. 2013, Baltimore, MD. Conference Proceedings
Conference Proceeding
Published
2013
Md Muztoba, Donald Butler, Noureddine Melikechi, and Mukti Rana, "Nanomachined Pyroelectric Detector with Low Thermal Conductance – Design and Concepts," Presented at the 2013 IEEE Sensors Conference, 4-6 Nov. 2013, Baltimore, MD. Conference Proceedings
Conference Proceeding
Published
2012
Donald P. Butler and Zeynep Çelik-Butler, “MEMS on Flexible Substrates” (Invited) Encyclopedia of Nanotechnology, Springer Publishing. ISBN-10: 9048197503, ISBN-13: 978-9048197507, Publication Date: July 1, 2012.
Book Chapter
Published
2012
Mukti M. Rana and Donald P. Butler, “RF Sputtered SixGe1-x and SixGe1-xOy Thin Films – New Sensing Materials for Uncooled Infrared Detectors” (Invited)  accepted for publication in “Germanium: Properties, Production and Applications”, Edited by Regina V. Germanno, Nova Science Publishers, 2012.ISBN: 978-1-61209-205-8.
Book Chapter
Published
2012
Moinuddin Ahmed, Murali M. Chitteboyina, Donald P. Butler, and Zeynep Celik-Butler, “Temperature Sensor in a Flexible Substrate,” IEEE Sensors Journal 12, pp. 864-869 (2012).
Journal Article
Published
2012
Gaviraj S. Nadvi, Donald P. Butler, Zeynep Celik-Butler and İsmail Erkin Gönenli, “Micromachined Force Sensors using Thin Film Nickel Chromium Piezoresistors,” Journal of Micromechanics and Microengineering 22, pp. 065002 (10pages) (2012).
Journal Article
Published
2012
Moinuddin Ahmed, Donald P. Butler, and Zeynep Celik-Butler, “MEMS absolute pressure sensor on a flexible substrate,” Presented at the 2012 IEEE MEMS Conference, Paris, France, 29 January-2 February 2012. Conference Proceedings. pp. 575-578.
Conference Proceeding
Published
2012
Moinuddin Ahmed, Donald P. Butler, Mukti M. Rana, and Nouriddine Melikechi “Pyroelectric Modified Lead Titanate Thin Films for Uncooled Infrared Detection,” Presented at the IEEE Optical MEMS and Nanophotonics Conference, 6-9 August 2012, Banff, Alberta, Canada. Conference Proceedings.
Conference Proceeding
Published
2012
Moinuddin Ahmed, Ismail Erkin Gonenli, Gaviraj S. Nadvi, Rohit Kilaru, Donald P. Butler, and Zeynep-Celik Butler, “MEMS Sensors on Flexible Substrate towards a Smart Skin,” Presented at the IEEE Sensors Conference, Oct. 28-31 2012, Taipei, Taiwan. Conference Proceedings.
Conference Proceeding
Published
2012
Bhargav Nabar, Zeynep Celik-Butler, and Donald P. Butler, “A NEMS Vibration Energy Harvester Using Ordered Piezoelectric Zinc Oxide Nanorod Array,”  Presented at the IEEE Sensors Conference, Oct. 28-31 2012, Taipei, Taiwan. Conference Proceedings.
Conference Proceeding
Published
2011
Zeynep Celik-Butler and Donald P. Butler, “Smart Skin: Multifunctional Sensor Arrays on Flexible Substrates,” Invited,  Encyclopedia of Nanoscience and Nanotechnology, Edited by H.S. Nalwa, American Scientific Publishing, American Scientific Publishers, 2011, Vol. 23 pp. 271-288, ISBN: 1-58883-188-4.
Book Chapter
Published
2011
Ismail Erkin Gönenli, Zeynep Çelik-Butler, and Donald P. Butler, “MEMS Accelerometers on Polyimide Substrates,” IEEE Sensors Journal,  vol. 11, pp. 2318-2326 (2011).
Journal Article
Published
2011
Moinuddin Ahmed, Donald P. Butler, Zeynep Celik-Butler, “The flicker noise in amorphous silicon based temperature sensors in flexible substrates,” Presented at the 2011 International Conference on Noise and Fluctuations, June 12-16, 2011, Toronto, Canada.
Conference Proceeding
Published
2011
Moinuddin Ahmed, Donald P. Butler, and Zeynep Celik-Butler, “MEMS relative pressure sensor on flexible substrate,” Presented at the 2011 IEEE Sensors Conference, Limerick, Ireland, 28-31 October 2011. Conference Proceedings. pp. 460-463
Conference Proceeding
Published
2011
Mukti M. Rana and Donald P. Butler, “RF Sputtered SixGe1-x and SixGe1-xOy Thin Films – New Sensing Materials for Uncooled Infrared Detectors” (Invited)  Nova Science Publishers, 2011. ISBN: 978-1-61324-357-2.
Book
Published
2010
K. Suraj, Z. C. B. Patil, and D. P. Butler. "Nanocrystalline Piezoresistive Polysilicon Film by Aluminum Induced Crystallization for Pressure Sensing Applications," IEEE Transactions on Nanotechnology, vol. 9, pp. 640-646, 2010.
Journal Article
Published
2010
M. Shahriar Rahman, Murali Chitteboyina, Donald P. Butler, Zeynep Celik-Butler, Sergio Pacheco, and Ronald McBean, “Self-Packaged MEMS Device,” Special Feature in Electronic Parts & Components Magazine, Korea, pp. 42-46, November, 2010.
Journal Article
Published
2010
S. K. Patil, Z. Celik-Butler, and D. P. Butler. "Characterization of MEMS Piezoresistive Pressure Sensors using AFM," Ultramicroscopy, vol. 110, pp. 1154-1160, 2010.
Journal Article
Published
2010
M. S. Rahman, M. Chitteboyina, D. P. Butler, Z. Celik-Butler, S. Pacheco, and R. McBean. "Device-level vacuum packaged MEMS resonator," IEEE/ASME Journal of Microelectromechanical Systems, vol. 19, pp. 911-917, 2010.
Journal Article
Published
2010
S. K. Patil, Z. CelikButler, and D. P. Butler. "Piezoresistive Polysilicon Film Obtained by Low-Temperature Aluminum Induced Crystallization," Thin Solid Films, vol. 519, pp. 479-486, 2010.
Journal Article
Published
2010
İsmail Erkin Gönenli, Zeynep Çelik-Butler, and Donald Butler, “MEMS Accelerometers on Polyimides for Failure Assessment in Aerospace Systems,” Presented at the 2010 IEEE Sensors Conference, Waikoloa, Hawaii, November 1-4, 2010.
Conference Proceeding
Published
2010
M. Shahriar Rahman, Murali Chitteboyina, Donald P. Butler, Zeynep Celik-Butler, Sergio Pacheco, and Ronald McBean, “Self-Packaged MEMS Device,” Presented at the IMAPS 6th International Conference and Exhibition on Device Packaging, Scottsdale, Arizona, USA, March 8 – 11, 2010.
Conference Proceeding
Published
2010
Zeynep Çelik-Butler, and Donald P. Butler, “MEMS-Based Conformal Sensors for Real-Time Structural Health Monitoring,” Proc. Of ONR Naval Science and Technology Partnership Conference, Nov. 8 – 10, 2010, Washington DC.
Conference Proceeding
Published
2010
Zeynep Çelik-Butler and Donald P. Butler, “Integrated Flexible Sensors (Smart Skin) for Structural Health Monitoring,” CONTACT (Consortium for Nanomaterials for Aerospace Commerce and Technology) Annual Review Meeting, Houston, TX, October 13-14, 2010.
Conference Paper
Published
2009
S. Kumar and D. P. Butler. "Infrared Sensing with Self-Supporting YBCO Uncooled IR Microbolometer Array Integrated with on-chip CCBDI Readout Circuit," IEEE Sensors Journal, vol. 9, pp. 411-418, 2009.
Journal Article
Published
2009
Suraj Kumar Patil, Zeynep Çelik-Butler, and Donald P. Butler, “Nanocrystalline Piezoresistive Polysilicon Film by Aluminum Induced Crystallization for Pressure Sensing Applications,” Presented at the Nanoelectronic Devices for Defense and Security Conference, Sept. 28 – Oct. 2, 2009, Fort Lauderdale, Florida.
Conference Proceeding
Published
2009
İsmail Erkin Gönenli, Zeynep Çelik-Butler, and Donald Butler, “Failure Assessment in Aerospace Systems via Integrated Multifunctional Sensors,” Presented at the Nanoelectronic Devices for Defense and Security Conference, Sept. 28 – Oct. 2, 2009, Fort Lauderdale, Florida.
Conference Proceeding
Published
2009
M. Shahriar Rahman, Murali Chitteboyina, Donald P. Butler, Zeynep Celik-Butler, Sergio Pacheco, and Ronald McBean, “Cost Effective RF MEMS Packaging,” Presented at the 2009 SRC Techcon Conference, Sept. 14-15, 2009, Austin, TX.
Conference Proceeding
Published
2009
Mukti Rana and Donald P. Butler, “Noise sources of a-Si1-xGexOy microbolometers and their reduction by forming gas passivation,” Proceedings of the 2009 20th International Conference on Noise and Fluctuations, June 14-19, 2009, Pisa, Italy. 
Conference Proceeding
Published
2009
Sandeep Kumar and Donald P. Butler, “Semiconducting Y-Ba-Cu-O infrared microbolometer array fabricated and characterized with CCBDI ROIC,” Proceedings of the 22nd IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2009), Sorrento, Italy, 25-29 January 2009.
Conference Proceeding
Published
2008
M. Chitteboyina and D. P. Butler. "Tunable Infrared Microspectrometer Based upon Bragg Grating," IEEE Journal of Quantum Electronics, vol. 44, pp. 182-184, 2008.
Journal Article
Published
2008
M. M. Rana and D. P. Butler. "Noise Reduction of a-Si1-xGexOy Microbolometers by Forming Gas Passivation," Thin Solid Films, vol. 516, pp. 6499-6503, 2008.
Journal Article
Published
2008
Suraj K. Patil, Zeynep Çelik-Butler, and Donald P. Butler, “Microcrystalline Piezoresistive Polysilicon Film Obtained by Aluminum Induced Crystallization,” Proceedings of 2008 8th IEEE Nanotechnology Conference, Arlington, TX, Aug 18-21, 2008.
Conference Proceeding
Published
2007
Z. Celik-Butler and D. P. Butler. "Smart Skin," 2007 Yearbook of Science and Technology McGraw-Hill, 2007.
Book Chapter
Published
2007
D. P. B. Mahmood and Z. Celik-Butler. "Device-level vacuum-packaging scheme for microbolometers on rigid and flexible substrates," IEEE Sensors Journal, vol. 7, pp. 1012-1019, 2007.
Journal Article
Published
2007
M. Chitteboyina, S. Kumar and D. P. Butler. "Fabrication of CMOS compatible semiconducting Y-Ba-Cu-O uncooled infrared microbolometer arrays," Journal of Vacuum Science and Technology B, vol. 25, pp. 1315-1320, 2007.
Journal Article
Published
2007
M. M. Rana and D. P. Butler. "High Responsivity a-Si1-xGexOy Microbolometers," IEEE Sensors Journal, vol. 7, pp. 1413-1419, 2007.
Journal Article
Published
2007
M.  Chitteboyina, S. Kumar and D. P. Butler. "Fabrication of CMOS compatible semiconducting Y-Ba-Cu-O uncooled infrared microbolometer arrays," Virtual Journal of Applications of Superconductivity, August 2007.
Journal Article
Published
2007
Murali Chitteboyina, Donald P. Butler and Zeynep Celik-Butler, “Vacuum packaged rf MEMS resonator,” Presented at 2007 TECHCON, 10-14 Sept. 2007, Austin, TX.
Conference Proceeding
Published
2007
Mukti M. Rana and Donald P Butler, “Amorphous GexSi1-xOy:H Microbolometers with High Responsivity,” Presented at the 2007 IEEE Sensors Conference, Atlanta, GA 28-31 Oct. 2007.
Conference Proceeding
Published
2007
Z. Çelik-Butler and D. P. Butler, “Self-Packaged Flexible MEMS,” 2007 Transpacific Workshop on Flexible Electronics, University of Texas at Dallas, Dallas TX, December 3, 2007.
Conference Paper
Published
2006
M. M. Rana and D. P. Butler. "RF Sputtered SixGe1-x and SixGe1-xOy Thin Films For Uncooled Infrared Detectors," Thin Solid Films, vol. 514, pp. 355-360, 2006.
Journal Article
Published
2006
S. D. Sharmana, Z. Celik-Butler, and D. P. Butler. "Micromachined integrated pressure-thermal sensors on flexible substrates," Journal of Micromechanics and Microengineering, vol. 16, pp. 1984-1992, 2006.
Journal Article
Published
2006
D. P. B. Mahmood and Z. Celik-Butler. "Micromachined bolometers on polyimide," Sensors and Actuators A, vol. 132, pp. 452-459, 2006.
Journal Article
Published
2006
Z. Celik-Butler and D. P. Butler. "Flexible Sensors - A Review," Journal of Nanoelectronics and Optoelectronics, vol. 1, no. 9, pp. 194-202, 2006.
Journal Article
Published
2006
S. Kumar, M. Chitteboyina, D.P. Butler, “Integration of Y-Ba-Cu-O Microbolometers with CMOS Readout Circuit,” Presented at 2006 IEEE Emerging Technologies Conference, Richardson, TX 15-16 Sept. 2006.
Conference Proceeding
Published
2005
A. Shadi, D. P. B. Dayeh, and Z. Celik-Butler. "Micromachined infrared bolometers on flexible polyimide substrates," Sensors and Actuators A, vol. 118, pp. 49-56, 2005.
Journal Article
Published
2005
Aamer Mahmood, Donald P. Butler, and Zeynep Celik-Butler, “Device-level vacuum packaged micromachined infrared detectors on flexible substrates,” Presented at the IEEE Sensors Conference, Oct. 31 – Nov. 3 2005, Irvine, CA.
Conference Proceeding
Published
2005
Mukti Rana and Donald P. Butler, “Amorphous GexSi1-x and GexSi1-xOy thin films for uncooled infrared microbolometers,” SPIE Defense and Security Symposium; Infrared Technology and Applications XXX, Orlando, FL, 28 Mar. – 1 April, 2005.
Conference Proceeding
Published
2005
A. Dave, A. Mahmood, Z. Çelik-Butler and D. P. Butler, “Self-Packaged Infrared Microsensors,” SPIE Defense and Security Symposium; Infrared Technology and Applications XXX, Orlando, FL, 28 Mar. – 1 April, 2005.
Conference Proceeding
Published
2004
A. Yildiz, Z. Çelik-Butler, and D. P. Butler. "Microbolometers on a Flexible Substrate for Infrared Detection," IEEE Sensors Journal, vol. 4, pp. 112-117, 2004.
Journal Article
Published
2004
Mukti M. Rana and Donald P. Butler, “RF Sputtered  SixGe1-x  and SixGe1-xOy Thin Films For Microsensor Applications,” 2004 IEEE Emerging Technologies Conference, Richardson, Texas, Oct. 8th, 9th, 2004.
Conference Proceeding
Published
2004
Aasutosh Dave, Aamer Mahmood, Zeynep Celik-Butler, and Donald P. Butler, “Wafer Level self-Packaged Infrared Microsensors,” presented at the SPIE 2004 Defense and Security Symposium: Infrared Technology and Applications XXX, Orlando, FL, April 2004.
Conference Proceeding
Published
2004
Bennison, Gail. "UTA researchers develop sensors to think smart." Fort Worth Business Press 30 Jan. 2004.
Popular Press Article
Published
2003
 “Crystallization and Pyroelectric Effect of Semiconducting YBaCuO Thin Films Deposited at Different Temperatures,” A. Yildiz, D.P. Butler, Z. Celik-Butler, and C.-U. Kim, Journal of Vacuum Science and Technology B 21, pp. 837-842 (2003).
Journal Article
Published
2003
“Crystallization and Pyroelectric Effect of Semiconducting YBaCuO Thin Films Deposited at Different Temperatures,” A. Yildiz, D.P. Butler, Z. Celik-Butler, and C.-U. Kim,  Virtual Journal of Applications of Superconductivity, 1 April 2003.
Journal Article
Published
2003
“Crystallization and Pyroelectric Effect of Semiconducting YBaCuO Thin Films Deposited at Different Temperatures,” A. Yildiz, D.P. Butler, Z. Celik-Butler, and C.-U. Kim,  Virtual Journal of Applications of Superconductivity, 1 April 2003.
Journal Article
Published
2003
Aamer Mahmood, Shadi A. Dayeh, Donald P. Butler, and Zeynep Celik-Butler, “Micromachined Infrared Sensor Arrays on Flexible Polyimide Substrates,” presented at 2003 IEEE Sensors Conference, Toronto, Canada, 22-24 Oct. 2003.
Conference Proceeding
Published
2003
Aamer Mahmood, Shadi Dayeh, Donald P. Butler, and Zeynep Çelik-Butler, “Micromachined Infrared Sensor Arrays on Flexible Polyimide Substrates,” 2003 ETTC, Richardson, TX, 26,27 Sept. 2003.
Conference Proceeding
Published
2003
Z. Celik-Butler, D. P. Butler, S. A. Dayeh, and P. Wisian-Neilson, “Uncooled micromachined bolometer arrays on flexible substrates,” presented at the SPIE Aerosense, Infrared Technology and Applications XXVIX, Orlando, FL, April 2003. SPIE 5074, pp. 537-547 (2003), B.F. Andersen and G.F. Fulop Editors.
Conference Proceeding
Published
2002
"Investigation of the Temperature Coefficient of Resistance and Crystallization of YBaCuO Thin Films Using Pulsed Laser Annealing," A. Yildiz, Z. Çelik-Butler, D.P. Butler, and C.-U. Kim, Journal of Vacuum Science and Technology B 20, 548 (2002).
Journal Article
Published
2002
"Uncooled Infrared Microbolometers on Flexible Substrates," A. Yaradanakul, Z. Celik-Butler, and D.P. Butler, IEEE Transactions on Electron Devices 49, 930 (2002).
Journal Article
Published
2002
"Uncooled Multimirror Broad-Band IR Microbolometers," M. Almasri, Z. Çelik-Butler, D.P. Butler, A. Yaradanakul, and A. Yildiz, IEEE/ASME Journal of Microelectromechanical Systems 11, 528 (2002).
Journal Article
Published
2002
"Investigation of the Temperature Coefficient of Resistance and Crystallization of YBaCuO Thin Films Using Pulsed Laser Annealing," A. Yildiz, Z. Çelik-Butler, D.P. Butler, and C.-U. Kim,  Virtual Journal of Applications of Superconductivity, 1 April 2002.
Journal Article
Published
2002
 "Investigation of the Temperature Coefficient of Resistance and Crystallization of YBaCuO Thin Films Using Pulsed Laser Annealing," A. Yildiz, Z. Çelik-Butler, D.P. Butler, and C.-U. Kim,  Virtual Journal of Applications of Superconductivity, 1 April 2002.
Journal Article
Published
2002
Z. Celik-Butler, D.P. Butler, A. Yildiz, “Room-Temperature YBaCuO Infrared Detectors on a Flexible Substrate,” presented at the SPIE Aerosense, Infrared Technology and Applications XXVIII, Orlando, FL, April 2002. SPIE 4721, pp. 260-267 (2002). E.L. Derniak and R.E. Sampson Editors.
Conference Proceeding
Published
2001
“Dielectric loss and related noise of pyroelectric modified lead titanate arrays,” V.N. Leonov, D. P. Butler, Z. Çelik-Butler, K. R. Udayakumar, C. M. Hanson, and H. R. Beratan, Solid State Electronics 45, 735 (2001).
Journal Article
Published
2001
“Self-supporting uncooled infrared microbolometers with low-thermal mass,” M. Almasri, D.P. Butler, and Z. Çelik-Butler, IEEE/ASME Journal of Microelectromechanical Systems 10, 469 (2001).
Journal Article
Published
2001
"Two-color Thermal Detector with Thermal Chopping for Infrared Focal Plane Arrays,” V.N. Leonov and D.P. Butler, Applied Optics 40,  2601 (2001).
Journal Article
Published
2001
A. Yaradanakul, Ali Yildiz, D.P. Butler, and Z. Celik-Butler, "Fabrication of Micromachined Devices an Flexible Substrates," Presented at the 2001 Emerging Technologies Symposium on Broadband Communications for the Internet Era, Richardson, TX, 10, 11 Sept. 2001, conference proceedings.
Conference Proceeding
Published
2001
Z. Çelik-Butler, D. P. Butler, M. Almasri, A. Yardanakul, A. Yildiz,"YBaCuOmicrobolometers for broad-band IR sensing," Presented at the SPIE Aerosense, Infrared Technology and Applications XXVII, Orlando, FL, April 2001. SPIE  4369, pp. 264-273 (2001), B.F. Andresen, G.F. Fulop, and M. Strojnik Editors.
Conference Proceeding
Published
2001
Z. Çelik-Butler and D.P. Butler, “Uncooled IR Detector Arrays,” Invited, Engineering Superconductivity, Peter J. Lee Editor, Wiley-Interscience, 2001, ISBN 0-471-41116-7.
Book Chapter
Published
2001
R. Sobolewski and D.P. Butler, Invited, “Infrared Optical Sensors”, to appear in Chap. 5.2 in Handbook of Superconducting Materials, D. Cardwell and D. Ginley, Editors-in-chief, Institute of Physics, Bristol, UK, BS1 6BE, 2001, ISBN: 0-750-30432-4.
Book Chapter
Published
2001
“Micromirrors improve detectors,” Photonics Technology News, September, 2001.
Essay
Published
2001
“Detect and Defend,” Dallas Morning News, 31 December 2001.
Essay
Published
2000
“Room Temperature Semiconducting YBaCuO Microbolometers with Titanium Absorber,” A. Yaradanakul, Z. Çelik-Butler, and D.P. Butler, International Journal of Advanced Manufacturing 3, 13 (2000).
Journal Article
Published
2000
D.P. Butler, Z. Çelik-Butler, M. Almasri, A. Yaradanakul, A. Yildiz,  “Uncooled Microbolometers Based on Semiconducting YBaCuO for Broad-Band IR Radiation Detection,” Presented at NanoTech 2000, Houston, TX, Sept. 24-28 2000.
Conference Proceeding
Published
2000
R. Sobolewski, D.P. Butler, and Z. Çelik-Butler, "Cooled and Uncooled Infrared Detectors Based on Yttrium Barium Copper Oxide," (invited) Presented at the 2nd International Conference on Advanced Optical Materials and Devices (ADOM-2), Vilnius, Lithuania, Aug. 16-19, 2000. Proceedings of the SPIE, vol. 4318, pp. 204, 2001.
Conference Proceeding
Published
2000
D.P. Butler, M. Almasri, and Z. Çelik-Butler, “Semiconducting YBaCuO bolometers for uncooled IR detection,” Presented at the 14th SPIE Annual International Symposium on Aerospace/Defense Sensing, Simulation, and Controls (AEROSENSE): Infrared Detectors and Focal Plane Arrays VI, Orlando, FL, 24-28 April, 2000. Proceedings of the SPIE Vol. 4028, pp. 17-26 (2000).
Conference Proceeding
Published
2000
D.P. Butler and Z. Çelik-Butler,  “YBaCuO Microbolometers for Advanced Broad-Band IR and FIR Detection,” Presented at Nanospace 2000 - Advancing the Human Frontier, Houston, TX, January 23-28, 2000.
Conference Proceeding
Published
2000
D. P. Butler, Z. Çelik-Butler and Roman Sobolewski, “Yttrium Barium Copper Oxide as an Infrared Sensing Material.” Invited, Handbook of Advanced Electronic and Photonic Materials, by Academic Press, 2000, Editor: H. S. Nalwa, ISBN:0-12-513745-1.
Book Chapter
Published
2000
“From the Hilltop to the Marketplace,” SMU Research Magazine, Ellen Mayou, vol. 7 2000.
Essay
Published
1999
“Uncooled IR Detector Could Enable Cheaper Cameras,” Photonics Technology World, Michael D. Wheeler, March 1999.
Journal Article
Published
1999
“Pyroelectric Effect in Semiconducting Y-Ba-Cu-O Thin Films under Laser Illumination”, D.P. Butler, Z. Çelik-Butler, R. Adam, and R. Sobolewski, J. Appl. Phys. 85, 1075 (1999).
Journal Article
Published
1999
“MgO Sacrificial Layer for Micromachining Uncooled Y-Ba-Cu-O IR Microbolometers,” J.E. Gray, Z. Çelik-Butler, and D.P. Butler, IEEE/ASME Journal of Microelectromechanical Systems 8, 192 (1999).
Journal Article
Published
1999
“Cryogenic Performance of Semiconducting Y-Ba-Cu-O for Infrared Detection,” M. Almasri, D.P. Butler, Z. Çelik-Butler, R. Adam, R. Sobolewski, Supercond. Sci. Technol. 12, 751 (1999).
Journal Article
Published
1999
M. Almasri, D.P. Butler, and Z. Çelik-Butler, “Free Standing Amorphous Semiconducting YBaCuO Detectors for Uncooled IR Detection and the Effects of Doping,” SPIE 44th Annual Meeting, The International Symposium on Optical Science, Engineering, and Instrumentation, Growth and Characterization of Materials for IR Detectors III, 18-23 July 1999, Denver, CO. Proceedings of the SPIE, Vol. 3794, pp. 66-75 (1999).
Conference Proceeding
Published
1999
M. Almasri, D.P. Butler, Z. Çelik-Butler, R. Adam, R. Sobolewski, “Cryogenic Performance of Semiconducting Y-Ba-Cu-O for Infrared Detection,” Presented at the International Superconductive Electronics Conference (ISEC'99) Berkeley, CA, June 21-26, 1999. Proceedings of the 7th International Superconductive Electronics Conference, Berkeley, CA, pp. 530-532.
Conference Proceeding
Published
1999
Roman Adam, Roman Sobolewski, Zeynep Çelik-Butler and Donald P. Butler, “Uncooled Y-Ba-Cu-O detectors based on the pyroelectric and bolometric effects,” Presented at the 1999 International Workshop on Superconductivity (4th Joint ISTEC/MRS Hawaii Workshop), Kauai, Hawaii, 27-30 June 1999.
Conference Paper
Published
1999
“Faculty Members' Semiconducting Work Draws Attention from NASA,” The Daily Campus, Jonathan Dewbre, October 19, 1999.
Essay
Published
1998
“Dielectric and Pyroelectric Response in Nb/Semiconducting Y-Ba-Cu-O/Nb Structures,” J.E. Gray, Z. Çelik-Butler, D.P. Butler, and A. Jahanzeb, Ferroelectrics 209, 517 (1998).
Journal Article
Published
1998
“Micromachined YBCO capacitor structures as uncooled pyroelectric infrared detectors,” D. P. Butler, Z. Çelik-Butler, A. Jahanzeb, J. E. Gray, and C. M. Travers, J. of Appl. Phys. 84, 1680 (1998).
Journal Article
Published
1998
“Semiconducting YBaCuO Pyroelectric Infrared Detectors on Suspended Si3N4 Films,” J.E. Gray, D.P. Butler, and Z. Çelik-Butler, Electronics Letters 34, 2164 (1998).
Journal Article
Published
1998
J.E. Gray, Z. Çelik-Butler, D.P. Butler, and M. Almasri, “Uncooled Infrared Microbolometers and Pyroelectric detectors using Semiconducting YBaCuO,” Presented at the SPIE 43rd Annual Meeting, The International Symposium on Optical Science, Engineering, and Instrumentation: Infrared Technology and its Applications XXIV, July 19-24, 1998, San Diego, CA. Proceedings of the SPIE Infrared Technology and its Applications XXIV, Vol. 3436, pp. 555-566 (1998).
Conference Proceeding
Published
1998
Z. Çelik-Butler and D.P. Butler, “Uncooled IR Detector Arrays,” Invited, Wiley Encyclopedia of Electrical and Electronics Engineering, 1998 Edition, Editor: John G. Webster. ISBN: 0-471-13946-7.
Book Chapter
Published
1998
“Yttrium-based material forms uncooled IR detectors,” By Kristin Lewotsky, PhotonicsOnline, January 26, 1998.
Journal Article
Published
1998
“Room Temperature Operation of a YBaCuO Microbolometer,” Z. Çelik-Butler, D. P. Butler, A. Jahanzeb, C. M. Travers, J. E. Gray, SPIE CD-ROM series, Vol 1: Infrared Technology. edited by Dr. Glenn D. Boreman, 1998.
Journal Article
Published
1998
“IR Detection at Room Temperature Using Semiconducting YBaCuO,” D. P. Butler, A. Jahanzeb, P. C. Shan, C. M. Travers, Z. Çelik-Butler, SPIE CD-ROM series, Vol 1: Infrared Technology. edited by Dr. Glenn D. Boreman, 1998.
Journal Article
Published
1998
“Thin films make new IR detector,” Optical Materials and Engineering News, February 1998.
Essay
Published
1998
“Infrared innovation,” By Alan Goldstein, Dallas Morning News, Business Section, March 23, 1998.
Essay
Published
1998
“Demand for 'uncool' infrared imaging heats up,” Technology Business, Nov/Dec 1998.
Essay
Published
1997
“Charge Transport in Amorphous and Tetragonal Semiconducting YBaCuO Films,” Z. Çelik-Butler, P.C. Shan, D.P. Butler, A. Jahanzeb, C.M. Travers, W. Kula, and R. Sobolewski, Solid State Electronics 41, 895 (1997).
Journal Article
Published
1997
“Hall-Effect in Semiconducting Epitaxial and Amorphous YBaCuO Thin Films,” A. Jahanzeb, P.C. Shan, D.P. Butler, Z. Çelik-Butler, W. Kula, and R. Sobolewski, J. Appl. Phys. 81, 6866 (1997).
Journal Article
Published
1997
“A semiconductor YBaCuO Microbolometer for room temperature IR imaging,” A. Jahanzeb, C. M. Travers, Z. Çelik-Butler, D. P. Butler, and S. G. Tan, IEEE Trans. on Electron Devices ED-44, 1795 (1997).
Journal Article
Published
1997
  “Fabrication Semiconducting YBaCuO Surface-Micromachined Bolometer Arrays,” C.M. Travers, A. Jahanzeb, D.P. Butler, and Z. Çelik-Butler, IEEE/ASME Journal of Microelectromechanical Systems 6, 271(1997).
Journal Article
Published
1997
“Strong Pyroelectric Response in Semiconducting Y-Ba-Cu-O and its application to Uncooled Infrared Detection,” A. Jahanzeb, C.M. Travers, D.P. Butler, Z. Çelik-Butler, and J.E. Gray, Applied Physics Letters 70, 3495 (1997).
Journal Article
Published
1997
Z. Çelik-Butler, A. Jahanzeb, D. P. Butler, and C. Travers,  “Noise in Semiconducting YBaCuO Microbolometers and its Applications,” Presented at the 14th International Conference on Noise in Physical Systems and 1/f Fluctuations, ICNF’97, July 14-18, 1997, Leuven, Belgium.
Conference Proceeding
Published
1997
Z. Çelik-Butler, D.P. Butler, C.M. Travers, and A. Jahanzeb, “Room-temperature Operation of a YBaCuO Microbolometer,” Presented at the SPIE's Optoelectronics '97 Symposium: Photodetectors: Materials and Devices II Conference, Feb. 10 - 14, 1997, San Jose, CA. 1997 Proceedings of the SPIE Photodectors Materials and Devices II, Vol. 2999, pp. 348-356 (1997).
Conference Proceeding
Published
1997
 “New Semiconductor IR Detector Combines Room-Temperature Operation with High Sensitivity and Low Cost,” Research Corporation Technologies News Release, August 8, 1997.
Journal Article
Published
1997
 “Infrared detector uses YBaCuO as active material -- Well-known superconductor has ideal characteristics for night-vision applications,” By Gail Robinson, EE Times, December 1, 1997.
Essay
Published
1996
“The investigation of semiconducting YBaCuO thin films: A new Room temperature bolometer,” P.C. Shan, Z. Çelik-Butler, D.P. Butler, A. Jahanzeb, C.M. Travers, W. Kula, and R. Sobolewski, J. Appl. Phys. 80, 7118 (1996).
Journal Article
Published
1996
D. P. Butler, A. Jahanzeb, P.-C. Shan, C. Travers and Z. Çelik-Butler, “IR Detection at Room Temperature Using Semiconducting YBaCuO,” Presented at the 1996 SPIE International Symposium on Optical Science, Engineering, and Instrumentation, Aug. 4 - 9, 1996. 1996 SPIE Proceedings on Infrared Detectors for Remote Sensing: Physics, Materials, and Devices, Vol. 2816, pp. 46-57 (1996).
Conference Proceeding
Published
1996
A. Jahanzeb, Z. Çelik-Butler, D. P. Butler, and P.-C. Shan, “Semiconducting YBaCuO Films for Room Temperature Bolometric Applications,” Presented at the 1996 Spring Meeting  of the Materials Research Society, April 8 - 12, 1996, San Francisco, CA.
Conference Proceeding
Published
1995
“Studies and Implications of the Hall Effect in Superconducting and Semiconducting YBa2Cu3O7-d Thin Films,” A. Jahanzeb,  Z. Çelik-Butler, P.-C. Shan, and D. P. Butler, J. of Appl. Phys. 78, 6658, (1995).
Journal Article
Published
1995
“Semiconducting YBaCuO Thin Films for Uncooled Bolometers,” P.-C. Shan, Z. Çelik-Butler, D.P. Butler and A. Jahanzeb, J. of Appl. Phys. 78, 7334, (1995).
Journal Article
Published
1995
A. Jahanzeb, P.-C. Shan, Z. Çelik-Butler, and D. P. Butler, “Low-Frequency Fluctuations in Semiconducting and Superconducting YBa2Cu3Ox Thin Films,” Presented at the 13th International Conference on Noise in Physical Systems and 1/f Fluctuations, May 29 - June 2, 1995, Palanga, Lithuania.(Proceedings of the 13th International Conference on Noise in Physical Systems and 1/f Fluctuations, edited by V.Bareikis and R. Katilius, World Scientific Press, 1995, pp. 115-118.)
Conference Proceeding
Published
1994
“Monolithic coplanar strip YBaCuO transmission lines fabricated by the laser-writing patterning technique” by  D. P. Butler, W. N. Maung, R. Sobolewski, W. Xiong, and, W. Kula, IEEE Microwave and Guided Wave Letters 4, 132, (1994).
Journal Article
Published
1994
“Monolithic Y-Ba-Cu-O structures fabricated using the laser-writing patterning technique” by   R. Sobolewski, W. Xiong, W. Kula, W. N. Maung, and D. P. Butler, Superconductor Science and Technology 7, 300, (1994).
Journal Article
Published
1994
“Modelling of High-Tc Superconductor Parametric Amplifiers and Mixers”, by J. Wang, D. P. Butler, and Z. Çelik-Butler, Physica C 231, 271, (1994).
Journal Article
Published
1993
“Fabrication of NbN Thin Films by Reactive Sputtering,” by W. N. Maung, D. P. Butler and C.-L. Huang, J. of Vac. Sc. Technol. A 11(3), 615, (1993).
Journal Article
Published
1993
“Two-Level Switching Noise in YBa2Cu3O7 Microbridges,” by D. P. Butler, Z. Çelik-Butler, and J. Wang, Solid State Electronics 36, 1507, (1993).
Journal Article
Published
1993
“Conversion Gain and Noise of YBa2Cu3O7 Microbridge Weak Links,” by D. P. Butler, J. Wang, A. Bhandari, and Z. Çelik-Butler, IEEE Transactions on Applied Superconductivity 3, 2269, (1993).
Journal Article
Published
1993
“Performance of MMIC Components at Cryogenic Temperatures,” by A. Bhandari, D. P. Butler and K. K. Agarwal, Optical and Microwave Technology Letters 6, 520-525, July, (1993).
Journal Article
Published
1993
W. N. Maung, D. P. Butler, W. Xiong, W. Kula and R. Sobolewski, “Microwave Properties of Monolithic Y-Ba-Cu-O Transmission Line Devices Fabricated by the Laser-Writing Technique” by  Proceedings of the SPIE Symposium on Optoelectronic and Microwave Engineering, edited by R. B. Hammond and R.S. Withers, vol. 2156, pp. 174 - 180, Los Angeles, CA, Jan. 22 - 28, 1993.
Conference Proceeding
Published
1993
R. Sobolewski, W. Xiong, W. Kula, W. N. Maung, and D. P. Butler, “Monolithic Y-Ba-Cu-O Electronic Devices Fabricated using the laser-writing patterning technique” by  Proceedings of the 4th International Superconductive Electronics Conference, Boulder, CO, Aug. 11 - 14, 1993.
Conference Proceeding
Published
1992
“Measurements of Noise and Temperature Coefficient of Resistance on YBa2Cu3O7-d Thin Films in Magnetic Field,” by Z. Çelik-Butler, W. Yang, and D. P. Butler, Appl. Phys. Lett. 60, 246, (1992).
Journal Article
Published
1992
“Conversion Loss of a  YBa2Cu3O7 Grain Boundary Mixer at 20 Gigahertz,” by D. P. Butler, W. Yang, J. Wang, A. Bhandari, and Z. Çelik-Butler, Applied Physics Letters 61, 333, (1992).
Journal Article
Published
1992
D. P. Butler, J. Wang, A. Bhandari, and Z. Çelik-Butler,  “Conversion Gain and Noise of YBa2Cu3O7 Microbridge Weak Links,” by Presented at the 1992 Applied Superconductivity Conference, Chicago, Il, Aug. 23-28, 1992.
Conference Proceeding
Published
1992
W. N. Maung and D. P. Butler,  “Fabrication of NbN-AlOx-NbN Josephson Junctions by reactive rf magnetron sputtering,” by Presented at the 1992 Applied Superconductivity Conference, Chicago, Il, Aug. 23-28, 1992.
Conference Paper
Published
1991
“Dielectric Waveguide Resonator with a Superconductive Boundary Layer,” by C.-L. Huang and D. P. Butler, IEEE Trans. on Magn. MAG-27, 1272, (1991).
Journal Article
Published
1991
“Fabrication and Electrical Characterization of NbN-Interfacial Layer-Si Contact Diodes,” by S. Wu and D. P. Butler, IEEE Trans. on Magn. MAG-27, 3276, (1991).
Journal Article
Published
1991
Z. Çelik-Butler, S. M. Alamgir, W. Yang, J. Wang, and D. P. Butler, “Low-frequency Noise Measurements on YBa2Cu3O7-d Thin Films,” by Presented at the 1991 International Conference on Noise in Physical Systems and 1/f fluctuations, Kyoto, Japan, November 24-27, 1991.
Conference Proceeding
Published
1991
S. Alamgir, W. Yang, J. Wang, Z. Çelik-Butler and D. P. Butler, “Characterization of YBaCuO Thin Films by Low-Frequency Noise Measurements,” by Presented at The Electrochemical Society - American Vacuum Society 10th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas, Texas, June 2 - 3, 1991.
Conference Proceeding
Published
1991
C.-L. Huang, W. N. Maung, and D. P. Butler, “Microwave Characterization of NbN Thin Films,” by Presented at The Electrochemical Society - American Vacuum Society 10th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas, Texas, June 2 - 3, 1991.
Conference Proceeding
Published
1990
“Dielectric Waveguide with YBa2Cu3O6+x Boundary Layer at 94 GHz,” by C.-L. Huang, D.P. Butler, and J. K. Butler, J. of Appl. Phys. 67 (6), 3194 (1990).
Journal Article
Published
1990
S. Alamgir, W. Yang, J. Wang, Z. Çelik-Butler and D. P. Butler, “Characterization of YBaCuO Thin Films by Low-Frequency Noise Measurements,” by Presented at the 1990 Applied Superconductivity Conference, Aspen, CO, Sept. 24-28, 1990.
Conference Proceeding
Published
1990
S. Wu and D. P. Butler, “Fabrication and Electrical Characterization of NbN-Interfacial Layer-Si Contact Diodes,” by Presented at the 1990 Applied Superconductivity Conference, Aspen, CO, Sept. 24-28, 1990.
Conference Proceeding
Published
1990
C.-L. Huang and D. P. Butler, “Dielectric Waveguide Resonator with a Superconductive Boundary Layer,” Presented at the 1990 Applied Superconductivity Conference, Aspen, CO, Sept. 24-28, 1990.
Conference Proceeding
Published
1990
W. N. Maung, C.-L. Huang, A. K. Bhandari, T. Nguyen, and D. P. Butler, “Fabrication and Patterning of NbN Thin Films by Reactive Sputtering and Plasma Etching,” by Presented at The Electrochemical Society - American Vacuum Society 9th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas, Texas, June 4 - 5, 1990.
Conference Proceeding
Published
1990
Songjian Wu and D. P. Butler, “Fabrication and Characterization of Nb-Si Schottky Contact Diodes,” by Presented at The Electrochemical Society - American Vacuum Society 9th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas, Texas, June 4-5, 1990.
Conference Proceeding
Published
1989
S. K. Dubey and D. P. Butler, “Fabrication of High-Tc Superconductor YBaCuO Thin Films by Sputter Deposition from a Single Powder Target,” by presented at The Electrochemical Society - American Vacuum Society 8th Annual Symposium on Electronic Materials, Processing and Characterization, Dallas, Texas, June 5-6, 1989.
Conference Proceeding
Published
1987
“Phase-slip States in the Normal-Superconducting Relaxation of Current Biased Microstrips,” by D.P. Butler and T.Y. Hsiang, J. of Low Temp. Phys. 66, 379 (1987).
Journal Article
Published
1987
Provided an interview to CNN News concerning the “Technological Impact of High-Tc Superconductors” in 1987.
Journal Article
Published
1986
“Dynamics of the Intermediate State in Nonequilibrium Superconductors,” by R. Sobolewski, D.P. Butler, T.Y. Hsiang, C.V. Stancampiano, and G.A. Mourou, Phys. Rev. B 33, 4604 (1986).
Journal Article
Published
1985
“Transient Relaxation of the Normal State Resistance of Tin Microstrips in the Presence of Current Bias,” by D.P. Butler, T.Y. Hsiang, and G.A. Mourou, J. of Low Temp. Phys. 61, 69 (1985).
Journal Article
Published
1984
“Picosecond Pulse Generation Capability of Optically Driven Superconducting Thin Films,” by R. Sobolewski, C.V. Stancampiano, G. Mourou, and D. Butler, Phys. Stat. Sol. (a) 83, K203 (1984).
Journal Article
Published
1983
“Transient Response of Tin Microstrips to Supercritical Current Pulses,” by D.P. Butler, T.Y. Hsiang, and G.A. Mourou, IEEE Trans. on Magnetics MAG-19, 644 (1983).
Journal Article
Published
1983
R. Sobolewski, C.V. Stancampiano, and D. Butler,   “Generirovanje pikosekundnych elektriczeskich impulsov w tonkich swerchprowodjaszczich pljonkach opticzeskoj,” (in Russian) (“Picosecond electrical pulse generation in optically pumped superconducting thin films”), Proceedings of XXI International Conference on Low Temperature Physics and Techniques, Warna, Bulgaria, 1983, p.293.
Conference Proceeding
Published
1982
D. P. Butler, T. Y. Hsiang, and G. A. Mourou, “Transient Response of Tin Microstrips to Supercritical Current Pulses,” 1982 Applied Superconductivity Conference, Knoxville, Tenn., November, 1982.
Conference Proceeding
Published
April 2015
9,006,016Method and Apparatus for Fabricating Piezoresistors by Aluminum Induced Crystallization

The present invention provides a method and apparatus for fabricating piezoresistive polysilicon on a substrate by low-temperature metal induced crystallization by: (1) providing the substrate having a passivation layer; (2) performing, at or near room temperature in a chamber without breaking a vacuum or near-vacuum within the chamber, the steps of: (a) creating a metal layer on the passivation layer, and (b) creating an amorphous silicon layer on the metal layer, wherein the metal layer and the amorphous silicon layer have approximately the same thickness; (3) annealing the substrate, the passivation layer, the metal layer and the amorphous silicon layer at a temperature equal to or less than 600.degree. C. and a period of time equal to or less than three hours to form a doped polysilicon layer below a residual metal layer; and (4) removing the residual metal layer to expose the doped polysilicon layer.

March 2015
8,994,528Thin Flexible Sensor

The present invention provides a sensor (100, 300, 400) that includes a thin and substantially flat flexible substrate (102, 406) having one or more sensor arrays (104, 302), a power source (106, 416), an output interface (108, 418) and a processor or analog circuit (304), all of which are disposed on the substantially flat flexible substrate (102, 406). The substrate (102, 406) can be any shape (e.g., rectangular, circular, a polygon, an irregular shape that is decorative) and made from a polymer, metal film or other suitable material. Note that the substrate can be rigid or semi-flexible instead of flexible. A protective layer may cover the sensor array (104, 302), the power source (106, 416), and the processor or analog circuit (304). Alternatively, a protective covering can be used to encapsulate the device. The one or more sensor arrays (104, 302) measure acceleration, force or pressure.

October 2013
8,557,623Method and Apparatuses for Integrated Packaging of Microelectromechanical Devices

Microelectromechanical systems (MEMS) packages, packaged MEMS devices, and methods for making the same are disclosed. The method may include forming a chamber sacrifcial layer above an insulating layer that is coupled to a Wafer. The method further may include forming a packaging layer above the chamber sacrifcial layer. The method additionally may include forming one or more openings through the packaging layer. The method also may include removing the chamber sacrifcial layer through the one or more open ings. The method may include forming a sealing layer above the packaging layer such that the sealing layer substantially seals the one or more openings to form a hermetic cavity.

July 2013
8,492,238Method and Apparatus for Fabricating Piezoresistors by Aluminum Induced Crystallization

The present invention provides a method and apparatus for fabricating piezoresistive polysilicon on a substrate by low-temperature metal induced crystallization by: (1) providing the substrate having a passivation layer; (2) performing, at or near room temperature in a chamber without breaking a vacuum or near-vacuum within the chamber, the steps of: (a) creating a metal layer on the passivation layer, and (b) creating an amorphous silicon layer on the metal layer, wherein the metal layer and the amorphous silicon layer have approximately the same thickness; (3) annealing the substrate, the passivation layer, the metal layer and the amorphous silicon layer at a temperature equal to or less than 600° C. and a period of time equal to or less than three hours to form a doped polysilicon layer below a residual metal layer; and (4) removing the residual metal layer to expose the doped polysilicon layer.

December 1998
US Patent #:5850098Uncooled YBaCuO Thin Film Infrared Detector

A thermal detector includes a transducer layer of semiconducting yttrium barium copper oxide which is sensitive at room temperature to radiation and provides detection of infrared radiation. In a gate-insulated transistor embodiment, a layer of ferroelectric semiconducting yttrium barium copper oxide forms a gate insulator layer and increases capacitance of the transistor or latches the transistor according to the polarization direction of the ferroelectric layer. The transducer layer may be formed as an amorphous Semiconductor and deposited at room temperature by simple sputtering. The sensitive element can be incorporated into a thermal isolation structure as part of an  integrated circuit.

October 1998
US Patent #5821598Uncooled YBaCuO Thin Film Infrared Detector

A thermal detector includes a transducer layer of semiconducting yttrium barium copper oxide which is sensitive at room temperature to radiation and provides detection of infrared radiation. In a gate-insulated transistor embodiment, a layer of ferroelectric semiconducting yttrium barium copper oxide forms a gate insulator layer and increases capacitance of the transistor or latches the transistor according to the polarization direction of the ferroelectric layer. The transducer layer may be formed as an amorphous Semiconductor and deposited at room temperature by simple sputtering. The sensitive element can be incorporated into a thermal isolation structure as part of an integrated circuit.

September 1997
US Patent #5,672,903Uncooled YBaCuO Thin Film Infrared Detector

A thermal detector includes a transducer layer of semiconducting yttrium barium copper oxide which is sensitive at room temperature to radiation and provides detection of infrared radiation. In a gate-insulated transistor embodiment, a layer of ferroelectric semiconducting yttrium barium copper oxide forms a gate insulator layer and increases capacitance of the transistor or latches the transistor according to the polarization direction of the ferroelectric layer.‘

October 1996
5,572,060Uncooled YBaCuO Thin Film Infrared Detector

A thermal detector includes a transducer layer of semiconducting yttrium barium copper oxide which is sensitive at room temperature to radiation and provides detection of infrared radiation. In a gate-insulated transistor embodiment, a layer of ferroelectric semiconducting yttrium barium
copper oxide forms a gate insulator layer and increases capacitance of the transistor or latches the transistor according to the polarization direction of the ferroelectric layer.

Fall 2015
EE 5381 - FOUNDATIONS IN SEMICONDUCTORS
Office Hours
DayStartEnd
Monday11:00AM12:00PM
Wednesday2:30PM3:30PM
Friday2:00PM3:00PM
A study of basic principles of semiconductors that have direct applications on device operation and fabrication. The course covers basic semiconductor properties, elements of quantum mechanics, energy band theory, equilibrium carrier statistics, carrier transport and generation-recombination processes, semiconductor characterization techniques using resistivity measurement, mobility measurement through Hall effect, defect characterization, carrier lifetime measurement and optical characterization.
Last Updated on July 27, 2015, 4:12 pm
No Documents Attached
Fall 2015
EE 5381 - FOUNDATIONS IN SEMICONDUCTORS
Office Hours
DayStartEnd
Monday11:00AM12:00PM
Wednesday2:30PM3:30PM
Friday2:00PM3:00PM
A study of basic principles of semiconductors that have direct applications on device operation and fabrication. The course covers basic semiconductor properties, elements of quantum mechanics, energy band theory, equilibrium carrier statistics, carrier transport and generation-recombination processes, semiconductor characterization techniques using resistivity measurement, mobility measurement through Hall effect, defect characterization, carrier lifetime measurement and optical characterization.
Last Updated on July 27, 2015, 4:12 pm
No Documents Attached
Spring 2015
EE 5349 - TOPICS IN INTEGRATED CIRCUIT TECHNOLOGY: Low Noise Electronics
Office Hours (also by appointment)
DayStartEnd
Monday11:00AM12:00PM
Wednesday2:00PM3:00PM
Friday2:00PM3:00PM
This course is an introduction to the area of low-noise electronic design. It presents an overview of electronic noise fundamentals, a description of electronic noise models for passive devices and active devices, methods of calculating the electronic noise performance of circuits, and techniques for minimizing electronic noise in circuit design. Low noise design practices will be developed in rf circuits and analog circuits.
Last Updated on November 4, 2014, 12:00 pm
No Documents Attached
Fall 2014
EE 5343 - Silicon IC Fabrication Lab
Office Hours
DayStartEnd
Monday11:00AM12:00PM
Wednesday2:30PM3:30PM
Friday2:00PM3:00PM
Course comprises of lectures and labs. Introduction to the basic steps and processes of fabricating integrated circuit semiconductor devices: crystal growth (thin film and bulk), thermal oxidation, dopant diffusion/implantation, thin film deposition/etching, and lithography. Introduction to process simulators, such as SUPREM. Fabrication and characterization of resistors, MOS capacitors, junction diodes and MOSFET devices.
Last Updated on September 2, 2014, 11:21 am
No Documents Attached
Fall 2014
EE 5343 - Silicon IC Fabrication Lab
Office Hours
DayStartEnd
Monday11:00AM12:00PM
Wednesday2:30PM3:30PM
Friday2:00PM3:00PM
Course comprises of lectures and labs. Introduction to the basic steps and processes of fabricating integrated circuit semiconductor devices: crystal growth (thin film and bulk), thermal oxidation, dopant diffusion/implantation, thin film deposition/etching, and lithography. Introduction to process simulators, such as SUPREM. Fabrication and characterization of resistors, MOS capacitors, junction diodes and MOSFET devices.
Last Updated on September 2, 2014, 11:24 am
No Documents Attached
Fall 2014
EE 5381 - Foundations in Semiconductors
Office Hours (also by appointment)
DayStartEnd
Monday11:00AM12:00PM
Wednesday2:00PM3:00PM
Friday2:00PM3:00PM
A study of basic principles of semiconductors that have direct applications on device operation and fabrication. The course covers basic semiconductor properties, elements of quantum mechanics, energy band theory, equilibrium carrier statistics, carrier transport and generation-recombination processes, semiconductor characterization techniques using resistivity measurement, mobility measurement through Hall effect, defect characterization, carrier lifetime measurement and optical characterization.
Last Updated on July 18, 2014, 10:59 am
No Documents Attached
Spring 2014
EE 1205 - Ee 1205-001
Office Hours (also by appointment)
DayStartEnd
Monday9:00AM10:00AM
Wednesday2:30PM3:30PM
Friday11:00AM12:00PM
EE 1205  INTRODUCTION TO ELECTRICAL ENGINEERING (1-3)  A project based course in which basic concepts in electrical engineering, such as electrical systems, power and energy, circuit laws, measurements, and data analysis will be introduced.  Student teams will engage in laboratory experiments, application hands-on projects, which cover areas of study in electrical engineering including analog and digital electronics, robotics, semiconductors, electro-magnetics, signal processing, photonics, energy management, and telecommunication systems.  Corequisites: EE 1104.
Last Updated on January 13, 2014, 3:34 pm
No Documents Attached
Spring 2014
EE 5349 - Ee 5349-001
Office Hours (also by appointment)
DayStartEnd
Monday9:00AM10:00AM
Wednesday2:30PM3:30PM
Friday11:00AM12:00PM
This course is an introduction to the area of low-noise electronic design. It presents an overview of electronic noise fundamentals, a description of electronic noise models for passive devices and active devices, methods of calculating the electronic noise performance of circuits, and techniques for minimizing electronic noise in circuit design. Low noise design practices will be developed in rf circuits and analog circuits.
Last Updated on January 13, 2014, 3:36 pm
No Documents Attached
Fall 2013
EE 1205 - Introduction to Electrical Engineering (Seminar)
Office Hours
DayStartEnd
Monday11:00AM12:00PM
Wednesday2:30PM3:30PM
Friday1:00PM2:00PM
EE 1205  INTRODUCTION TO ELECTRICAL ENGINEERING (1-3)  A project based course in which basic concepts in electrical engineering, such as electrical systems, power and energy, circuit laws, measurements, and data analysis will be introduced.  Student teams will engage in laboratory experiments, application hands-on projects, which cover areas of study in electrical engineering including analog and digital electronics, robotics, semiconductors, electro-magnetics, signal processing, photonics, energy management, and telecommunication systems.  Corequisites: EE 1104.
Last Updated on August 13, 2013, 12:01 pm
No Documents Attached
Fall 2013
EE 5381 - Ee 5381-001 Foundations in Semiconductors (All sections)
Office Hours
DayStartEnd
Monday11:00AM12:00PM
Wednesday2:30PM3:30PM
Friday1:00PM2:00PM
A study of basic principles of semiconductors that have direct applications on device operation and fabrication. The course covers basic semiconductor properties, elements of quantum mechanics, energy band theory, equilibrium carrier statistics, carrier transport and generation-recombination processes, semiconductor characterization techniques using resistivity measurement, mobility measurement through Hall effect, defect characterization, carrier lifetime measurement and optical characterization.
Last Updated on August 13, 2013, 12:03 pm
No Documents Attached
Spring 2013
EE 1205 - Introduction to Electrical Engineering
No Description Provided.
Last Updated on May 7, 2013, 3:56 pm
No Documents Attached
Spring 2013
EE 5343 - SILICON INTEGRATED CIRCUIT FABRICATION TECHNOLOGY
No Description Provided.
Last Updated on May 7, 2013, 3:56 pm
No Documents Attached
Fall 2012
EE 5381 - Foundations in semiconductors
No Description Provided.
Last Updated on May 7, 2013, 3:56 pm
No Documents Attached
Fall 2012
EE 3308 - Electromagnetics II
No Description Provided.
Last Updated on May 7, 2013, 3:56 pm
No Documents Attached
December -
Technical Reviewer:
I have served as a technical reviewer for the National Science Foundation (Reviewer and Panelist); National Research Council; US State Department for Science Centers; IEEE Transactions on Microwave Theory and Techniques; IEEE Transactions on Applied Superconductivity; Journal of Applied Physics; Applied Physics Letters; Solid State Electronics; Wiley Interscience; Prentice Hall; American Society for Engineering Education; Applied Optics.
Uncategorized
December -
Consulting:
  • 1990; Gregg Birch Associates: Energy Storage Elements with High-Tc Superconductor Thin Films.
  • 1992; Gardere & Wynne, Attorneys and Counselors, Dallas, TX.
  • 1998-1999; Midwest Superconductivity, Lawrence, KS.
Uncategorized