Wiring substrate having mesh-shaped earth line

Details Wiring substrate having mesh-shaped earth line Wiring substrate having mesh-shaped earth line

1988-06-02

1989-08-08

Nimmo, Morris H.

Electricity: conductors and insulators

Conduits, cables or conductors

Single duct conduits

H05K 100

Patent

active

048555371

ABSTRACT:
A circuit board comprises a mesh-shaped earth line including first earth lines extending in the X direction and second earth lines extending in the Y direction, an insulative layer formed on the earth line, and a signal line which is formed on the insulative layer to be insulated from the mesh-shaped earth line by the insulative layer. Among the first earth lines and the second earth lines, a line width of the portion of the signal line which crosses the earth lines which have a large crossing angle with the signal line is 0 or smaller than the line width of the earth lines which have a small crossing angle with the signal line among the first earth lines and the second earth lines.

REFERENCES:
patent: 3293353 (1966-12-01), Hendriks et al.
patent: 4689262 (1987-08-01), Bloom
Jarvela R. A. et al.; Wirability Enhancement; IBM Technical Disclosure Bulletin; vol. 21, No. 9; Feb. 1979; p. 3624.

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