Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569749 | Silicon and oxygen ion co-implanation for metallic gettering in epitaxial wafers | Jallepally Ravi, Naoto Tate | 2003-05-27 |
| 6022793 | Silicon and oxygen ion co-implantation for metallic gettering in epitaxial wafers | Jallepally Ravi, Naoto Tate | 2000-02-08 |
| 5961713 | Method for manufacturing a wafer having a microdefect-free layer of a precisely predetermined depth | — | 1999-10-05 |
| 5865887 | Method for improving mechanical strength of the neck section of czochralski silicon crystal | Akihiko Tamura | 1999-02-02 |
| 5827367 | Apparatus for improving mechanical strength of the neck section of czochralski silicon crystal | Akihiko Tamura | 1998-10-27 |
| D394703 | Pair of ball shaped odor absorbing material containers attached together with a flexible string | — | 1998-05-26 |
| 5629216 | Method for producing semiconductor wafers with low light scattering anomalies | Sandra A. Archer, Dinesh Gupta | 1997-05-13 |
| 5611855 | Method for manufacturing a calibration wafer having a microdefect-free layer of a precisely predetermined depth | — | 1997-03-18 |
| 5306939 | Epitaxial silicon wafers for CMOS integrated circuits | Kiyoshi Mitani | 1994-04-26 |