US4091409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device having symmetrical current distribution
Assignee: RCA Corp
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Filing: 1976-12-27
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Granted: 1978-05-23
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Expires: 1996-12-27
Abstract
Abstract A semicondutor device has an electrode with a configuration having a trunk portion and at least one comb-like portion. The comb-like portion has a back with ends and a plurality of conductive fingers extending therefrom. The trunk portion has a segment which is substantially parallel to the back of the comb-like portion. The trunk portion contacts the comb-like portion at a point intermediate the ends of the back.
Inventors
- 👤 Carl Franklin Wheatley, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:43
CPC Classifications
H; H10; H10D; H10D64/00; H10D64/20; H10D64/23; H10D64/27
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
90 words
A semiconductor device comprising: a body of semiconductor material having a surface, and a layer of conductive material on said body, said layer having a configuration comprising; a first comb-like portion having a first back with ends and a first plurality of fingers extending from said first back; said configuration also comprising a trunk portion having a segment substantially parallel to said first back of said first comb-like portion, one end said trunk portion contacting said first back of said first comb-like portion at a point intermediate said ends thereof.
Claim 2
Dependent Claim
90 words
A semiconductor device comprising: a body of semiconductor material having a surface, and a layer of conductive material on said body, said layer having a configuration comprising; a first comb-like portion having a first back with ends and a first plurality of fingers extending from said first back; said configuration also comprising a trunk portion having a segment substantially parallel to said first back of said first comb-like portion, one end said trunk portion contacting said first back of said first comb-like portion at a point intermediate said ends thereof.
Claim 3
Dependent Claim
40 words
A semiconductor device as claimed in claim 1 wherein: said first plurality of fingers are substantially equally distributed along said first back and said one end of said trunk portion contacts said first back at a substantially symmetrical point therealong.
Claim 4
Dependent Claim
47 words
A semiconductor device as claimed in claim 1 wherein; said first back has a comparatively narrower portion near one end and a comparatively wider portion near another end; and said one end of said trunk portion contacts said first back at a point nearer said one end.
Claim 5
Dependent Claim
39 words
A semiconductor device as claimed in claim 1 further comprising: a second comb-like portion having a second back with ends and a second plurality of fingers extending therefrom said second back being contacted by said first plurality of fingers.
Claim 6
Dependent Claim
22 words
A semiconductor device as claimed in claim 4 wherein: said second plurality of fingers are substantially equally distributed along said second back.
Claim 7
Dependent Claim
23 words
A semiconductor device as claimed in claim 4 wherein said second back is substantially parallel to and spaced apart from said first back.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |