Impact of Mechanical Stress on AlGaN/GaN HEMT Performance
Download or Read eBook Impact of Mechanical Stress on AlGaN/GaN HEMT Performance PDF written by Andrew Daniel Koehler and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle.
Author | : Andrew Daniel Koehler |
Publisher | : |
Total Pages | : |
Release | : 2011 |
ISBN-10 | : OCLC:818755262 |
ISBN-13 | : |
Rating | : 4/5 (62 Downloads) |
Book Synopsis Impact of Mechanical Stress on AlGaN/GaN HEMT Performance by : Andrew Daniel Koehler
Book excerpt: Repeatable gauge factors of an AlGaN/GaN HEMT device were obtained after eliminating parasitic charge trapping effects. Over four orders of magnitude of variation in gauge factors are reported in literature. Charge traps are likely responsible for the huge discrepancy. By employing continuous sub-bandgap optical excitation, the effect of non-repeatable charge trapping transients was effectively minimized, allowing the gauge factor to be accurately measured. The measured gauge factor is compared to a simulated gauge factor, calculated from stress-induced changes in the 2DEG sheet carrier density and mobility.