Printed-circuit board and electronic device

Details Printed-circuit board and electronic device Printed-circuit board and electronic device

2007-11-27

2007-11-27

Lam, Cathy F. (Department: 1775)

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

C174S260000, C174S262000, C361S816000, C361S818000

Reexamination Certificate

active

11017712

ABSTRACT:
A printed-circuit board includes a shield pattern layer that is stacked on a surface layer with respect to at least one wiring pattern layer that includes a wide-pattern area having a wiring width of more than 1 millimeter. Moreover, the shield pattern layer includes a shield pattern that is, from a plane view, overlapped on the wide-pattern area, and grounded without being electrically connected to an internal layer of other wiring pattern layers.

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patent: 5-275863 (1993-10-01), None
patent: 2003-272467 (2003-09-01), None

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