Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876215 | Method of making a static ram cell with trench pull-down transistors and buried-layer ground plate | — | 1989-10-24 |
| 4843023 | Process for forming lightly-doped-drain (LDD) without extra masking steps | Kuang-Yi Chiu | 1989-06-27 |