Pacific Western Systems
19Patents
0Active
19Granted
35Portfolio score
Filing activity: Feb 27, 1976 → Nov 6, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4500563A | Independently variably controlled pulsed R.F. plasma chemical vapor processing | Electricity | 274 | Expired |
| US4223048A | Plasma enhanced chemical vapor processing of semiconductive wafers | Electricity | 84 | Expired |
| US5763879A | Diamond probe tip | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4590422A | Automatic wafer prober having a probe scrub routine | Physics | 59 | Expired |
| US4795977A | Interface system for interfacing a device tester to a device under test | Physics | 56 | Expired |
| US4736373A | Memory tester having concurrent failure data readout and memory repair analysis | Physics | 56 | Expired |
| US4460999A | Memory tester having memory repair analysis under pattern generator control | Physics | 49 | Expired |
| US4251772A | Probe head for an automatic semiconductive wafer prober | Physics | 47 | Expired |
| US4460997A | Memory tester having memory repair analysis capability | Physics | 36 | Expired |
| US4500836A | Automatic wafer prober with programmable tester interface | Physics | 22 | Expired |
| US4101761A | Timing pulse generator | Electricity | 19 | Expired |
| US4718202A | Method and apparatus for rounding the edges of semiconductive wafers | Performing Operations; Transporting | 12 | Expired |
| US4661033A | Apparatus for unloading wafers from a hot boat | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4104867A | Water-tight watch case | Physics | 8 | Expired |
| US4249846A | Rotary vacuum seal for a wafer transport system | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4820370A | Particle shielded R. F. connector for a plasma enhanced chemical vapor processor boat | Electricity | 5 | Expired |
| US4761301A | Electrical insulator for a plasma enhanced chemical vapor processor | Chemistry; Metallurgy | 3 | Expired |
| US4292722A | Renewable nut for a lead screw drive and method of making same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6448184B1 | Formation of diamond particle interconnects | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.