US4550357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interconnected printed circuit boards and method of connecting circuit boards
Assignee: Nippon Mektron KK
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Filing: 1983-06-27
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Granted: 1985-10-29
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Expires: 2003-06-27
Abstract
Abstract Interconnected printed circuit boards and a method of connecting different types of printed circuit boards is presented. The method is particularly well suited for connecting the circuit patterns of a flexible printed circuit board to the corresponding circuit patterns of a hard printed circuit board and is easily accomplished by the novel utilization of an electroconductive adhesive. The adhesive connection of the present invention also provides improved ease of separability of the connected circuit boards.
Inventors
- 👤 Hirofumi Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:52
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/36; H05K3/361; H01; H01R; H01R4/00; H01R4/04; H05K3/30; H05K3/32; H05K3/321; H01R12/00; H01R12/50; H01R12/51; H01R12/55; H01R12/57; H01R12/59; H01R12/62; H01R4/02; H01R4/70; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0388; H05K2201/0397; H05K2201/05; H05K2201/055; H05K2201/09; H05K2201/09145; H05K2201/09172; H05K2201/10; H05K2201/10613; H05K2201/10954; H05K2201/10992; H05K3/363; H05K3/40; H05K3/403; H05K3/4092
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
174 words
A method of connecting printed circuit boards including the steps of: applying electroconductive adhesive to ends of a first circuit pattern, said first circuit pattern being located on a first insulating base material, said first circuit pattern and said first base material defining a first printed circuit board; aligning said ends of said first circuit pattern with corresponding ends of a second circuit pattern, said second circuit pattern being located on a second insulating base material, said second circuit pattern and said second base material defining a second printed circuit board; said first and second base materials being different materials; extending said ends of said first circuit pattern outwardly from said first base material; forming at least one tooth shape in said first base material, said tooth shape corresponding to said outwardly extended ends of said first circuit pattern; bending said at least one tooth shape downwardly to form a single overlapping structure; and bringing said corresponding ends of said first and second circuit patterns together under pressure to form physical and electrical connections.
Claim 2
Independent Claim
174 words
A method of connecting printed circuit boards including the steps of: applying electroconductive adhesive to ends of a first circuit pattern, said first circuit pattern being located on a first insulating base material, said first circuit pattern and said first base material defining a first printed circuit board; aligning said ends of said first circuit pattern with corresponding ends of a second circuit pattern, said second circuit pattern being located on a second insulating base material, said second circuit pattern and said second base material defining a second printed circuit board; said first and second base materials being different materials; extending said ends of said first circuit pattern outwardly from said first base material; forming at least one tooth shape in said first base material, said tooth shape corresponding to said outwardly extended ends of said first circuit pattern; bending said at least one tooth shape downwardly to form a single overlapping structure; and bringing said corresponding ends of said first and second circuit patterns together under pressure to form physical and electrical connections.
Claim 3
Dependent Claim
17 words
The method of claim 1 including: applying electroconductive adhesive to said ends of said second circuit pattern.
Claim 4
Dependent Claim
31 words
The method of claim 1 including: providing a flexible printed circuit board as said first printed circuit board; and providing a hard printed circuit board as said second printed circuit board.
Claim 5
Dependent Claim
40 words
The method of claim 3 including: applying electroconductive adhesive to said ends of said first base material; and bending said ends back upon themselves with the ends of said first circuit pattern being on the exterior side of the bend.
Claim 6
Dependent Claim
171 words
An interconnected circuit board array including: a first circuit board having a first base material and a first circuit pattern of conductive elements thereon; a second circuit board having a second base material and a second circuit pattern of conductive elements thereon corresponding to said first circuit pattern; one of said base materials being a flexible material defining its circuit board as a flexible circuit board and the other of said base materials being a hard material defining its circuit board as a hard circuit board; said first circuit pattern including ends and wherein said ends of said first circuit pattern extend from said first base material; said first base material being flexible and having at least one tooth shape which corresponds to said outwardly extended ends of said first circuit pattern; said at least one tooth shape being bent backward upon itself, with the conductive elements on the outer side of the bend; and electroconductive adhesive between said first and second circuit patterns forming a physical and electrical connection therebetween.
Claim 7
Dependent Claim
171 words
An interconnected circuit board array including: a first circuit board having a first base material and a first circuit pattern of conductive elements thereon; a second circuit board having a second base material and a second circuit pattern of conductive elements thereon corresponding to said first circuit pattern; one of said base materials being a flexible material defining its circuit board as a flexible circuit board and the other of said base materials being a hard material defining its circuit board as a hard circuit board; said first circuit pattern including ends and wherein said ends of said first circuit pattern extend from said first base material; said first base material being flexible and having at least one tooth shape which corresponds to said outwardly extended ends of said first circuit pattern; said at least one tooth shape being bent backward upon itself, with the conductive elements on the outer side of the bend; and electroconductive adhesive between said first and second circuit patterns forming a physical and electrical connection therebetween.
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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) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |