Selected Conference presentation:
1. Chao Liu*, Riyaz Abdul Khadar, and Elison Matioli*, Vertical GaN-on-Si MOSFET with Monolithically Integrated Freewheeling Schottky Barrier Diode, Compound Semiconductor Week (CSW), Boston, USA, May 29 - June 1, 2018
2. Chao Liu*, Riyaz Abdul Khadar, and Elison Matioli*, 645 V Quasi-Vertical GaN Power Transistors on silicon substrates, 30th IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD), Chicago, USA, May 13-17, 2018
3. Chao Liu, Huaxing Jiang, Yuefei Cai, and Kei May Lau*, Monolithically integrated GaN-based HEMT-LED and InGaN/GaN photodiodes for on-chip optical interconnects, Compound Semiconductor Week (CSW), Toyama, Japan, Jun 26-30, 2016
4. Chao Liu, Yuefei Cai, and Kei May Lau*, Enhanced optical performance of monolithically integrated HEMT-LED by buffer optimization, 11th International Conference on Nitride Semiconductors (ICNS), Beijing, China, Aug 30 - Sep, 4, 2015
5. Chao Liu, Yuefei Cai, Zhaojun Liu, Jun Ma, and Kei May Lau*, Buffer optimization of monolithically integrated HEMT-LED using a metal- interconnection-free scheme, 57th Electronic Materials Conference (EMC),Columbus, Ohio, USA, Jun 24-26, 2015
6. Chao Liu, Zhaojun Liu, Tongde Huang, Jun Ma, and Kei May Lau*, Improved breakdown characteristics of monolithically integrated III-nitride HEMT- LED devices using carbon doping, 17th International Conference on Metalorganic Vapor Phase Epitaxy (ICMOVPE), Lausanne, Switzerland, July 13- 18, 2014
7. Chao Liu, Taiping Lu, Zhiwei Ren, Xin Chen, Bijun Zhao, Yian Yin, Jinhui Tong, and Shuti Li*, Study of blue InGaN multiple quantum well light- emitting diodes with p-type quantum barriers, Asian Communication and Photonics Conference (ACP), Guangzhou, China, Nov 7-10, 2012
8. Jie Ren*, Chao Liu, Yuying Chen, Chak Wah Tang, Kei May Lau, and Johnny K.O. Sin, Switching characteristics of monolithically integrated Si- GaN cascoded rectifiers, 29th IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD), Royton Sapporo, Sapporo, Japan, May 28–June 1, 2017
9. Huaxing Jiang, Chao Liu, Xing Lu, and Kei May Lau*, High Voltage Low Current Collapse AlGaN/GaN MISHEMTs with in-situ SiN Gate Dielectric, Compound Semiconductor Week (CSW), Toyama, Japan, Jun 26-30, 2016
10. Tongde Huang*, Chao Liu, Johan Bergsten, Huaxing Jiang, Kei May Lau, and Niklas Rorsman, Fabrication and Improved Performance of AlGaN/GaN HEMTs with Regrown Ohmic Contacts and Passivation-First Process, Compound Semiconductor Week (CSW), Toyama, Japan, Jun 26-30, 2016
11. Huaxing Jiang, Chao Liu, Xing Lu, and Kei May Lau*, Effective suppression of Current collapse in AlGaN/GaN MISHEMTs using in-situ SiN gate dielectric and PECVD SiN passivation, International Conference on Compound Semiconductor Manufacturing Technology (CSMANTECH), Miami, Florida, USA, May 16-19, 2016
12. Kun Yu, Chao Liu, Huaxing Jiang, Xing Lu, Kei May Lau, and Anping Zhang, Investigation of the interface traps and current collapse in LPCVD SiNx/AlGaN/GaN MISHEMTs, International Conference on Compound Semiconductor Manufacturing Technology (CS MANTECH), Miami, Florida, USA, May 16-19, 2016
13. Huaxing Jiang, Chao Liu, Xing Lu, and Kei May Lau, Control of threshold voltage in ultrathin-barrier AlGaN/GaN based MISHEMTs with low-frequency SiNx gate dielectric and Al2O3 interfacial layer, 11th International Conference on Nitride Semiconductors (ICNS), Beijing, China, Aug 30 - Sep, 4, 2015
14. Jie Ren, Chao Liu, Kei May Lau, and Johnny K. O. Sin, Effect of high-temperature thermal treatment on AlGaN/GaN HEMT Epi for monolithic integration, 11th International Conference on Nitride Semiconductors (ICNS), Beijing, China, Aug 30 - Sep, 4, 2015
15. Yuefei Cai, Xinbo Zou, Chao Liu, and Kei May Lau, Voltage-Controlled Light Modulation Enabled by Monolithically Integrated HEMT-LED Device, International workshop on Nitride Semiconductors (IWN 2016), Orlando, USA, October 2-7, 2016
16. Xing Lu, Huaxing Jiang, Chao Liu, and Kei May Lau, Improved performance of AlGaN/GaN HEMTs by O2-plasma and HCl surface treatment, 11th International Conference on Nitride Semiconductors (ICNS), Beijing, China, Aug 30 - Sep, 4, 2015
17. Huaxing Jiang, Xing Lu, Chao Liu, and Kei May Lau, Off-state Drain Leakage Reduction by Post Metallization Annealing for Al2O3/GaN/AlGaN/GaN MOSHEMTs on Silicon, Compound Semiconductor Week (CSW), Santa Barbara, California, USA, June 2015
18. Jun Ma, Xing Lu, Tongde Huang, Chao Liu, and Kei May Lau*, Improved buffer resistivity for GaN-based HEMTs using a medium-temperature and low-pressure GaN insertion layer, 17th International Conference on Metalorganic Vapor Phase Epitaxy (ICMOVPE), Lausanne, Switzerland, July 13-18, July, 2014