US3967296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices
Assignee: General Electric Co
•
Filing: 1972-10-12
•
Granted: 1976-06-29
•
Expires: 1992-10-12
Abstract
Abstract A semiconductor device in which a top-contact semiconductor body is thermo-electrostatically face down bonded to a vitreous support carrying patterned metallization forming leads registered with the top contacts, and a protective insulative coating is provided over at least portions of the leads to preclude shortcircuiting to exposed portions of the semiconductor body.
Inventors
- 👤 Alexander M. Intrator
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:16
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
170 words
In a semiconductor device, a semiconductor body having at least one metallic contact situated on a major face thereof, a glass support member having a sealing surface, a layer of metal on at least a portion of said sealing surface adapted to constitute at least one electrical lead for the semiconductor body, said semiconductor body and said sealing surface being disposed in confronting contacting relation with said metallic contact in registry with said lead, means forming a permanent thermo-electrostatic bond uniting said support member to said semiconductor body, and an insulative layer on said support member covering at least the portion of said lead nearest the side wall of said semiconductor body, said insulative layer having a thickness of about 1000 to 20000 Angstroms and being sandwiched between direct contact with said lead and direct contact with the outer marginal edge portion of the major face of said semiconductor body to prevent shortcircuiting of said lead to said semiconductor body sidewall during or subsequent to the formation of said bond.
Claim 2
Dependent Claim
170 words
In a semiconductor device, a semiconductor body having at least one metallic contact situated on a major face thereof, a glass support member having a sealing surface, a layer of metal on at least a portion of said sealing surface adapted to constitute at least one electrical lead for the semiconductor body, said semiconductor body and said sealing surface being disposed in confronting contacting relation with said metallic contact in registry with said lead, means forming a permanent thermo-electrostatic bond uniting said support member to said semiconductor body, and an insulative layer on said support member covering at least the portion of said lead nearest the side wall of said semiconductor body, said insulative layer having a thickness of about 1000 to 20000 Angstroms and being sandwiched between direct contact with said lead and direct contact with the outer marginal edge portion of the major face of said semiconductor body to prevent shortcircuiting of said lead to said semiconductor body sidewall during or subsequent to the formation of said bond.
Claim 3
Dependent Claim
18 words
A semiconductor device as defined in claim 1 wherein said semiconductor body includes at least one PN junction.
Claim 4
Dependent Claim
15 words
A semiconductor device as defined in claim 1 wherein said insulative layer is silicon oxide.
Claim 5
Dependent Claim
13 words
A semiconductor device as defined in claim 3 wherein said lead is aluminum.
Claim 6
Dependent Claim
47 words
A semiconductor device as defined in claim 1 wherein said insulative layer completely covers at least the portion of said lead extending from a point a few mils inboard of the side wall of said semiconductor body to a point a few mils outboard of said sidewall.
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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |