US3787822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing internal connections in a semiconductor device
Assignee: US Philips Corp
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Filing: 1972-04-13
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Granted: 1974-01-22
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Expires: 1992-04-13
Abstract
Abstract Method of providing interconnection in a monolithic planar semiconductor device, comprising forming first conductor pattern connected to circuit element, providing apertured insulating layer thereover, providing a dielectric oxide layer at first pattern portion exposed through insulating layer aperture and removed from circuit element, and providing second conductor pattern having portion thereof on dielectric oxide layer, the patterns being electrically connected by applying therebetween potential sufficient to cause electrical breakdown in oxide layer. Also, product made by method.
Inventors
- 👤 J Rioult
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:33
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/14; G11C17/16; G11C17/08; H; H10; H10W; H10W20/00; H10W20/40; H10W20/49; H10W20/493; H10P; H10P14/00; H10P14/60; H10P14/63; H10P14/6302; H10P14/6304; H10P14/6314; H10P14/6326; H10P14/6328; H10P14/6334; H10P14/69; H10P14/692; H10P14/6938; H10P14/6939; H10P14/69391; H10P14/69392; H10P14/69393; H10P14/69394; H10P14/69395
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
26 words
A method as recited in claim 1, wherein said dielectric oxide layer is formed by superficially oxidizing said exposed part of said first metal conductor pattern.
Claim 2
Dependent Claim
41 words
A method as recited in claim 1, wherein said first and second patterns are produced by vapor depositing aluminum and said dielectric oxide layer consists essentially of aluminum oxide, said insulating layer which separates said patterns consisting essentially of silicon dioxide.
Claim 3
Dependent Claim
31 words
A method as recited in claim 1, wherein said dielectric oxide layer is electrolessly formed at surface regions of said first conductor pattern by dipping said substrate in an oxidizing bath.
Claim 4
Dependent Claim
18 words
A method as recited in claim 1, wherein said dielectric oxide layer is subjected to a stabilization treatment.
Claim 5
Dependent Claim
30 words
A method as recited in claim 1, wherein said dielectric oxide layer is formed by depositing an oxide originating from a reaction in the gaseous phase of an organo-metallic compound.
Claim 6
Dependent Claim
29 words
A method as recited in claim 1, wherein said dielectric oxide is selected from the group consisting of titanium oxide, tantalum oxide, hafnium oxide, zirconium oxide and niobium oxide.
Claim 7
Dependent Claim
139 words
A monolithic planar semiconductor device, comprising: a. a semiconductor substrate including at least one electronic circuit element at a major surface thereof; b. a first metallic conductor pattern disposed at said substrate surface, a portion of said pattern being electrically connected to a part of said circuit element; c. an apertured electrically insulating layer disposed over said surface and said first pattern, said aperture extending through said layer and being located at a part of said first pattern removed from said circuit element; d. a dielectric oxide layer disposed on said part of said first pattern, and e. a second metallic conductor pattern partially located on said dielectric oxide layer, other regions of said first and second patterns being separated by said electrically insulating film, said dielectric oxide layer having a breakdown voltage significantly less than said insulating layer.
Claim 8
Dependent Claim
147 words
A planar monolithic programmable memory matrix comprising semiconductor devices, said matrix comprising at least two metal conductor layers and an insulating layer disposed between said conductor layers, at least one of said devices being electrically connected to a portion of a first one of said Conductor layers, said insulating layer comprising a discontinuity extending completely therethrough to said first conductor layer at a point removed from said device, a dielectric oxide layer being disposed at said discontinuity between said conductor layers and between respective portions of said conductor layers located at said discontinuity, said dielectric layer being characterized by an electrical breakdown voltage significantly less than that of said insulating layer, portions of said conductor layers being available for electrical connection to a potential source, whereby said conductor layers are electrically connected to each other by applying therebetween an electrical potential exceeding said dielectric layer breakdown voltage.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |