Robert L. Coffie, Ph.D.

Affiliations: 
2003 University of California, Santa Barbara, Santa Barbara, CA, United States 
Area:
Electronics & Photonics
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"Robert Coffie"

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Umesh Mishra grad student 2003 UC Santa Barbara
 (Characterizing and suppressing DC-to-RF dispersion in aluminum gallium nitride/gallium nitride high electron mobility transistors.)
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Publications

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Coffie R. (2015) Calculating drain delay in high electron mobility transistors Solid-State Electronics. 114: 98-103
Heying B, Smorchkova IP, Coffie R, et al. (2007) In situ SiN passivation of AlGaN/GaN HEMTs by molecular beam epitaxy Electronics Letters. 43: 779-780
Chini A, Buttari D, Coffie R, et al. (2004) Power and linearity characteristics of field-plated recessed-gate AlGaN-GaN HEMTs Ieee Electron Device Letters. 25: 229-231
Shen L, Coffie R, Buttari D, et al. (2004) High-Power Polarization-Engineered GaN/AlGaN/GaN HEMTs without Surface Passivation Ieee Electron Device Letters. 25: 7-9
Chini A, Buttari D, Coffie R, et al. (2004) 12 W/mm power density AlGaN/GaN HEMTs on sapphire substrate Electronics Letters. 40: 73-74
Shen L, Coffie R, Buttari D, et al. (2004) Unpassivated GaN/AlGaN/GaN power high electron mobility transistors with dispersion controlled by epitaxial layer design Journal of Electronic Materials. 33: 422-425
Paidi V, Xie S, Coffie R, et al. (2003) High linearity and high efficiency of class-B power amplifiers in GaN HEMT technology Ieee Transactions On Microwave Theory and Techniques. 51: 643-652
Xie S, Paidi V, Coffie R, et al. (2003) High-linearity class B power amplifiers in GaN HEMT technology Ieee Microwave and Wireless Components Letters. 13: 284-286
Buttari D, Chini A, Palacios T, et al. (2003) Origin of etch delay time in Cl 2 dry etching of AlGaN/GaN structures Applied Physics Letters. 83: 4779-4781
Coffie R, Shen L, Parish G, et al. (2003) Unpassivated p-GaN/AlGaN/GaN HEMTs with 7.1 W/mm at 10 GHz Electronics Letters. 39: 1419-1420
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