Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11670706 | Methods of manufacture for trench-gate insulated-gate bipolar transistors (IGBTs) | Ralph N. Wall, Mingjiao Liu, Shamsul Arefin Khan, Gordon M. Grivna | 2023-06-06 |
| 11456381 | Drain-extended transistor | Sunglyong Kim, Seetharaman Sridhar, Sameer Pendharkar | 2022-09-27 |
| 11056581 | Trench-gate insulated-gate bipolar transistors | Mingjiao Liu, Shamsul Arefin Khan, Gordon M. Grivna, Ralph N. Wall | 2021-07-06 |
| 10727326 | Trench-gate insulated-gate bipolar transistors (IGBTs) | Ralph N. Wall, Mingjiao Liu, Shamsul Arefin Khan, Gordon M. Grivna | 2020-07-28 |
| 10546948 | Electronic device including an insulated gate bipolar transistor having a field-stop region and a process of forming the same | Ralph N. Wall | 2020-01-28 |
| 10388726 | Accumulation enhanced insulated gate bipolar transistor (AEGT) and methods of use thereof | Ralph N. Wall | 2019-08-20 |
| 10128330 | Semiconductor device with a buried junction layer having an interspersed pattern of doped and counter-doped materials | Ralph N. Wall | 2018-11-13 |