US4914259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded circuit board
Assignee: Furukawa Electric Co Ltd
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Filing: 1989-02-16
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Granted: 1990-04-03
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Expires: 2009-02-16
Abstract
Abstract A molded circuit board formed by molding a resin substrate to one side of a circuit film made by forming a desired circuit pattern to an insulating film in a manner to form an integral body. In the circuit film, there are provided soldering pad regions for mounting surface-mounting parts in a surface of the circuit film opposite the other surface in contact with resin substrate and through-holes at locations of the circuit film where insert-mounting parts are mounted. In the resin substrate, holes for receiving insert-mounting parts are formed in the molding process at the locations corresponding to the through-holes of the circuit film.
Inventors
- 👤 Kenzo Kobayashi
- 👤 Hirokazu Shiroishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:38
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0058; H05K3/30; H05K3/306; H05K3/32; H05K3/34; H05K3/341; H05K3/3415; H05K1/00; H05K1/02; H05K1/03; H05K1/0393; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/096; H05K2201/09818; H05K2201/09827; H05K2201/10; H05K2201/10431; H05K2201/10575; H05K2201/10613; H05K2201/10621; H05K2201/10636; H05K2201/10742; H05K2201/1075; H05K2201/10863; H05K2201/10954; H05K2201/10977; H05K2201/20; H05K2201/2036; H05K2203/00; H05K2203/13; H05K2203/1305; H05K2203/1327; H05K2203/15; H05K2203/1572; H05K3/22; H05K3/28; H05K3/3447; Y; Y02; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
94 words
A molded circuit board comprising: a circuit film having an insulating film and a desired circuit pattern on said insulating film; and a resin substrate integrally molded on one surface of said circuit film, said circuit film having bonding pad regions, formed in a surface thereof opposite the surface in contact with resin substrate, for mounting surface mounting type parts, and through-holes formed at locations thereof where insert-mounting parts are to be mounted, said resin substrate having holes, formed at locations thereof corresponding to said through-holes, for receiving the leads of insert-mounting type parts,
Claim 2
Dependent Claim
94 words
A molded circuit board comprising: a circuit film having an insulating film and a desired circuit pattern on said insulating film; and a resin substrate integrally molded on one surface of said circuit film, said circuit film having bonding pad regions, formed in a surface thereof opposite the surface in contact with resin substrate, for mounting surface mounting type parts, and through-holes formed at locations thereof where insert-mounting parts are to be mounted, said resin substrate having holes, formed at locations thereof corresponding to said through-holes, for receiving the leads of insert-mounting type parts,
Claim 3
Dependent Claim
23 words
A molded circuit board according to claim 1, wherein said holes for receiving the leads are holes formed in molding said resin substrate.
Claim 4
Dependent Claim
26 words
A molded circuit board according to claim 1, wherein said circuit film has an adhesive layer attached to the surface thereof closer to said resin substrate.
Claim 5
Dependent Claim
21 words
A molded circuit board according to claim 3, wherein the insulating film of said circuit film is formed of a resin.
Claim 6
Dependent Claim
19 words
A molded circuit board according to claim 4, wherein said insulating film is formed of polyimide or polyethylene terephthalate.
Claim 7
Dependent Claim
32 words
A molded circuit board according to claim 1, wherein said circuit film has an insulating layer in the region of the surface thereof other than said bonding pad regions and said through-holes.
Claim 8
Dependent Claim
32 words
A molded circuit board according to claim 1, wherein said holes for receiving the leads are formed with an inside diameter equal to or smaller than the inside diameters of said through-holes.
Claim 9
Dependent Claim
30 words
A molded circuit board according to claim 1, wherein said resin substrate has a depressed area in the circuit film-formation side thereof, said depressed area being filled with sealing material.
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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) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |