AlGaN/AlN/GaN high-power microwave HEMT L Shen, S Heikman, B Moran, R Coffie, NQ Zhang, D Buttari, ...
IEEE Electron Device Letters 22 (10), 457-459, 2001
595 2001 Metalorganic chemical vapor deposition of GaN on Si (111): Stress control and application to field-effect transistors H Marchand, L Zhao, N Zhang, B Moran, R Coffie, UK Mishra, JS Speck, ...
journal of Applied Physics 89 (12), 7846-7851, 2001
249 2001 Insulated gate e-mode transistors CS Suh, I Ben-Yaacov, R Coffie, U Mishra
US Patent 7,851,825, 2010
234 2010 Enhancement Mode III-N HEMTs U Mishra, R Coffie, L Shen, I Ben-Yaacov, P Parikh
US Patent 8,519,438, 2013
226 2013 Realization of wide electron slabs by polarization bulk doping in graded III–V nitride semiconductor alloys D Jena, S Heikman, D Green, D Buttari, R Coffie, H Xing, S Keller, ...
Applied physics letters 81 (23), 4395-4397, 2002
210 2002 12W/mm power density AlGaN/GaN HEMTs on sapphire substrate A Chini, D Buttari, R Coffie, S Heikman, S Keller, UK Mishra
Electronics Letters 40 (1), 1, 2004
193 2004 Gallium nitride based transistors H Xing, S Keller, YF Wu, L McCarthy, IP Smorchkova, D Buttari, R Coffie, ...
Journal of Physics: Condensed Matter 13 (32), 7139, 2001
171 2001 Semiconductor devices with field plates R Chu, R Coffie
US Patent 8,390,000, 2013
153 2013 High-power polarization-engineered GaN/AlGaN/GaN HEMTs without surface passivation L Shen, R Coffie, D Buttari, S Heikman, A Chakraborty, A Chini, S Keller, ...
IEEE Electron Device Letters 25 (1), 7-9, 2004
140 2004 Origin of etch delay time in D Buttari, A Chini, T Palacios, R Coffie, L Shen, H Xing, S Heikman, ...
Applied physics letters 83 (23), 4779-4781, 2003
129 2003 Power and linearity characteristics of field-plated recessed-gate AlGaN-GaN HEMTs A Chini, D Buttari, R Coffie, L Shen, S Heikman, A Chakraborty, S Keller, ...
IEEE Electron Device Letters 25 (5), 229-231, 2004
126 2004 Systematic characterization of Cl2 reactive ion etching for improved ohmics in AlGaN/GaN HEMTs D Buttari, A Chini, G Meneghesso, E Zanoni, B Moran, S Heikman, ...
IEEE Electron device letters 23 (2), 76-78, 2002
89 2002 2.1 A/mm current density AlGaN/GaN HEMT A Chini, R Coffie, G Meneghesso, E Zanoni, D Buttari, S Heikman, ...
Electronics letters 39 (7), 1, 2003
88 2003 High linearity and high efficiency of class-B power amplifiers in GaN HEMT technology V Paidi, S Xie, R Coffie, B Moran, S Heikman, S Keller, A Chini, ...
IEEE Transactions on Microwave Theory and Techniques 51 (2), 643-652, 2003
82 2003 P-capped GaN-AlGaN-GaN high-electron mobility transistors (HEMTs) R Coffie, D Buttari, S Heikman, S Keller, A Chini, L Shen, UK Mishra
IEEE Electron Device Letters 23 (10), 588-590, 2002
81 2002 High power semiconductor electronic components with increased reliability RK Lal, R Coffie, Y Wu, P Parikh, Y Dora, U Mishra, S Chowdhury, ...
US Patent 8,598,937, 2013
80 2013 Mass transport regrowth of GaN for ohmic contacts to AlGaN/GaN S Heikman, S Keller, B Moran, R Coffie, SP DenBaars, UK Mishra
physica status solidi (a) 188 (1), 355-358, 2001
71 2001 Systematic characterization of Cl2 reactive ion etching for gate recessing in AlGaN/GaN HEMTs D Buttari, A Chini, G Meneghesso, E Zanoni, P Chavarkar, R Coffie, ...
IEEE Electron Device Letters 23 (3), 118-120, 2002
52 2002 Semiconductor electronic components and circuits P Parikh, J Honea, CC Blake, R Coffie, Y Wu, U Mishra
US Patent 8,624,662, 2014
47 2014 Dual-gate AlGaN/GaN modulation-doped field-effect transistors with cut-off frequencies fT >60 GHz CH Chen, R Coffie, K Krishnamurthy, S Keller, M Rodwell, UK Mishra
IEEE Electron Device Letters 21 (12), 549-551, 2000
45 2000 