US3683240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ELECTROLUMINESCENT SEMICONDUCTOR DEVICE OF GaN
Assignee: RCA Corp
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Filing: 1971-07-22
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Granted: 1972-08-08
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Expires: 1991-07-22
Abstract
Abstract An electroluminescent semiconductor device including a body of insulating, crystalline gallium nitride and a pair of contacts electrically connected to spaced points of the body.
Inventors
- 👤 Jacques Issac Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:31
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/81; H10H20/822; H10H20/824; H10H20/825; H10H20/01; H10H20/011; H10H20/013; H10H20/0133; H10H20/01335; Y; Y10; Y10S; Y10S148/00; Y10S148/065; Y10S148/085; Y10S148/113; Y10S148/15
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
35 words
An electroluminescent semiconductor device in accordance with claim 1 in which the body contains a sufficient amount of an acceptor impurity to compensate all of the donors in the body to make the body insulating.
Claim 2
Dependent Claim
32 words
An electroluminescent semiconductor device in accordance with claim 1 in which at least one of the contacts includes a region of electrically conductive crystalline gallium nitride engaging a surface of the body.
Claim 3
Dependent Claim
37 words
An electroluminescent semiconductor device in accordance with claim 3 in which each of the contacts includes a region of electrically conductive crystalline gallium nitride and at least a portion of the body is sandwiched between said regions.
Claim 4
Dependent Claim
22 words
An electroluminescent semiconductor device in accordance with claim 1 in which the body is on a substrate of an electrically insulating material.
Claim 5
Dependent Claim
36 words
An electroluminescent semiconductor device in accordance with claim 5 including a region of electrically conductive crystalline gallium nitride between the substrate, the body, a metal contact on said region and a metal contact on the body.
Claim 6
Dependent Claim
79 words
An electroluminescent semiconductor device in accordance with claim 5 including a first layer of conductive crystalline gallium nitride on a portion of a surface of the substrate, the body is a layer on said surface of the substrate and overlapping a portion of the first layer, and a second layer of conductive crystalline gallium nitride is on said body and overlaps a portion of said first layer so that a portion of said body is sandwiched between said layers.
Claim 7
Dependent Claim
19 words
An electroluminescent semiconductor device in accordance with claim 7 including separate metal contact pads on each of said layers.
References Cited (Backward Citations)
US3560275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |