US4426548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer wiring structure
Assignee: Hitachi Ltd
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Filing: 1982-02-08
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Granted: 1984-01-17
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Expires: 2002-02-08
Abstract
Abstract A multilayer wiring structure comprising a plurality of groups of patterns each having a multiplicity of wirings formed on the opposite sides of an intervening insulation film. The intervening insulation film is formed with a void exposed to both an upper pattern of a multiplicity of wirings and a lower pattern of a multiplicity of wirings, the upper and lower patterns being formed on and beneath the intervening insulation film and arranged to form a matrix. The void extends longitudinally across one of the patterns, and the upper and lower patterns are connected together through the void at crossing points of the matrix.
Inventors
- 👤 Ryoji Oritsuki
- 👤 Tohru Watanabe
- 👤 Kazuo Shirahashi
- 👤 Hiromi Kanai
- 👤 Kozo Odawara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:51
CPC Classifications
H; H10; H10D; H10D18/00; H05; H05K; H05K3/00; H05K3/40; H05K3/403; H05K3/46; H05K3/4685; H05K1/00; H05K1/02; H05K1/0286; H05K1/0287; H05K1/0289; H05K1/03; H05K1/0306; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/09509; H05K2201/09645; H05K2201/09818; H05K2201/09827; H05K3/4644
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
In a multilayer wiring structure comprising an upper pattern and a lower pattern formed on opposite sides of an intervening insulation film each of said patterns having a multiplicity of wirings, the improvement wherein the intervening insulation film is formed with a void exposed to both said upper pattern of a multiplicity of wirings and said lower pattern of a multiplicity of wirings, said upper and lower patterns being arranged to form a matrix, the void extends longitudinally across one of said patterns at right angles with respect to the wirings of said pattern, and said upper and lower patterns are connected together through the void at crossing points of the matrix.
Claim 2
Dependent Claim
112 words
In a multilayer wiring structure comprising an upper pattern and a lower pattern formed on opposite sides of an intervening insulation film each of said patterns having a multiplicity of wirings, the improvement wherein the intervening insulation film is formed with a void exposed to both said upper pattern of a multiplicity of wirings and said lower pattern of a multiplicity of wirings, said upper and lower patterns being arranged to form a matrix, the void extends longitudinally across one of said patterns at right angles with respect to the wirings of said pattern, and said upper and lower patterns are connected together through the void at crossing points of the matrix.
Claim 3
Dependent Claim
22 words
A multilayer wiring structure according to claim wherein wirings of the lower pattern have terminals parallel to wirings of the upper pattern.
Claim 4
Dependent Claim
37 words
A multilayer wiring structure according to claim 1 or 2 wherein the wirings of said lower pattern are deposited on an insulating substrate and said intervening insulation film is deposited on the substrate and the lower pattern.
Claim 5
Dependent Claim
16 words
A multilayer wiring structure according to claim wherein said intervening insulation film is an organic film.
Claim 6
Dependent Claim
15 words
A multilayer wiring structure according to claim 1, wherein said void has a rectangular configuration.
References Cited (Backward Citations)
US782391A
Cited
US2558008A
Cited
US3499098A
Cited
US3725744A
Cited
US3824433A
Cited
DE2751096A1
Cited
DE2903000A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |