EP0312682A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Printed circuit board
Assignee: Nippon CMK Corp
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Filing: 1988-04-02
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Granted: —
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Expires: 2008-04-02
Abstract
Abstract The invention relates to a printed circuit board (18) forming conductors (11, 12) on one or both side surfaces of a base plate (10). These conductors (11, 12) are covered by shield films (15, 16) to shield outer noise from reaching the circuit conductors (11, 12) and to avoid crosstalk between said conductors (11, 12).
Inventors
- 👤 Shin Kawakami
- 👤 Satoshi Haruyama
- 👤 Hirotaka Okonogi
- 👤 Katsutomo Nikaido
- 👤 Norito Mukai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 12:59
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0216; H05K1/0218; H05K1/0219; H05K1/0221; H05K9/00; H05K9/0007; H05K9/002; H05K9/0039; H05K2201/00; H05K2201/07; H05K2201/0707; H05K2201/0715; H05K2201/09; H05K2201/09209; H05K2201/09654; H05K2201/09809; H05K2201/09818; H05K2201/09981; H05K3/00; H05K3/46; H05K3/4644
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
42 words
A printed circuit board (18, 20) forming circuit conductors (11, 12) on one or both side surfaces of a base plate (10), characterized in that all electrically exposed surfaces of said circuit conductors (11, 12) are covered by shield films (13, 14).
Claim 2
Dependent Claim
42 words
A printed circuit board (18, 20) forming circuit conductors (11, 12) on one or both side surfaces of a base plate (10), characterized in that all electrically exposed surfaces of said circuit conductors (11, 12) are covered by shield films (13, 14).
Claim 3
Dependent Claim
36 words
A printed circuit board (18, 20) according to claim 1, characterized in that the said shield films (13, 14) are attached on insulating layers (15, 16) attached on the surfaces of said circuit conductors (11, 12).
Claim 4
Dependent Claim
24 words
A printed circuit board (20) according to claim 1 characterized in that the shield films (13, 14) are covered by an insulating layer (17).
Claim 5
Dependent Claim
23 words
A printed circuit board (20) according to claim 3, characterized in that the insulating layer (17) is covered by a shield film (19).
Claim 6
Dependent Claim
23 words
A printed circuit board (20) according to claim 4, characterized in that the shield film (19) is covered by an insulating layer (21).
References Cited (Backward Citations)
No citation records indexed.
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