Patent US4635358A successfully refreshed from Google Patents.
US4635358A
Expired / Lapsed
US
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Method for forming electrically conductive paths through a dielectric layer
Assignee: EIDP Inc
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Filing: 1985-01-03
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Granted: 1987-01-13
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Expires: 2005-01-03
Abstract
Abstract An improved process is disclosed for forming a series of electrically conductive path through-holes in a dielectric layer which is sandwiched between two electrically conductive layers by applying pressure to conductive overhangs in a conductive layer through and elastomeric surface.
Inventors
- 👤 Herbert L. Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:07
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/40; H05K3/4038; H05K3/4084; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0133; H05K2201/03; H05K2201/0332; H05K2201/0388; H05K2201/0394; H05K2201/0397; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/09509; H05K2203/00; H05K2203/02; H05K2203/0278; H05K2203/11; H05K2203/1184; H05K3/0011; H05K3/0017; H05K3/002; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49165; Y10T29/49167
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
A process for making multiple electrically conductive paths in a dielectric layer sandwiched between two conductive layers with a series of holes extending through one of the conductive layers and the dielectric layer comprising; providing the holes in the conductive layer and the dielectric layer are of different size with the conductive layer overhanging the holes in the dielectric layer and applying pressure to conductive overhangs by an elastomeric material which contacts the conductive layer and has a dimpled surface.
Claim 2
Dependent Claim
80 words
A process for making multiple electrically conductive paths in a dielectric layer sandwiched between two conductive layers with a series of holes extending through one of the conductive layers and the dielectric layer comprising; providing the holes in the conductive layer and the dielectric layer are of different size with the conductive layer overhanging the holes in the dielectric layer and applying pressure to conductive overhangs by an elastomeric material which contacts the conductive layer and has a dimpled surface.
Claim 3
Dependent Claim
21 words
The process of claim 1 wherein 10% to 50% of the surface of the elastomeric material is not depressed or indented.
Claim 4
Dependent Claim
21 words
The process of claim 2 wherein 15 to 35% of the surface of the elastomeric material is not depressed or indented.
Claim 5
Dependent Claim
34 words
The process of claim 1 wherein substantially each portion of the elastomeric material which is not depressed or indented is not greater than 200% of the area of a hole in the conductive layer.
Claim 6
Dependent Claim
34 words
The process of claim 1 wherein substantially each portion of the elastomeric material which is not depressed or indented is not less than 50% of the area of a hole in the conductive layer.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein at least 50 holes are present.
Claim 8
Dependent Claim
14 words
The process of claim 1 wherein the holes in the conductive layer are noncircular.
Claim 9
Dependent Claim
15 words
The process of claim 1 wherein holes are in both conductive layers opposite one another.
Claim 10
Dependent Claim
16 words
The process of claim 1 wherein the conductive overhangs are in the shape of a tab.
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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) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |