Circuit board

Details Circuit board Circuit board

2006-11-07

2006-11-07

Cuneo, Kamand (Department: 2841)

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

C361S818000

Reexamination Certificate

active

07132599

ABSTRACT:
A circuit board includes a printed circuit board layer, an insulating layer, and an electromagnetic interference sealed layer. The printed circuit board layer includes an insulating substrate on which circuit patterns are printed. The insulating layer covers the circuit patterns. The sealed layer covers the insulating layer and connected with a ground portion of the circuit patterns. The sealed layer that is formed by screen printing conductive paste has through holes. Edges are formed around the through holes other than the outer edges, and a total area of edges at which the thickness of the printed conductive paste is large due to surface tension increases. Thus, the sealed layer can be easily formed in a predetermined thickness, and stability in conductivity of the sealed layer can be maintained.

REFERENCES:
patent: 4801489 (1989-01-01), Nakagawa et al.
patent: 5652508 (1997-07-01), Yamamoto
patent: 5981043 (1999-11-01), Murakami et al.
patent: 6486394 (2002-11-01), Schmidt et al.
patent: 6777622 (2004-08-01), Ueno et al.
patent: 2004/0118600 (2004-06-01), Lee et al.
patent: 2005/0122030 (2005-06-01), Sakamoto et al.
patent: A-H2-022885 (1990-01-01), None
patent: U-H4-026599 (1992-03-01), None
patent: A-2000-138425 (2000-05-01), None
patent: A-2001-336955 (2001-12-01), None

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