Method and apparatus for designing printed circuit boards to...

Details Method and apparatus for designing printed circuit boards to... Method and apparatus for designing printed circuit boards to...

Filed on

2007-06-05

Date issued

2007-06-05

Examiner

Do, Thuan (Department: 2825)

Patent Class

Computer-aided design and analysis of circuits and semiconductor

SubClass

Nanotechnology related integrated circuit design

Other Related Categories

C716S030000, C716S030000, C703S014000

Type

Reexamination Certificate

Status

active

Patent number

11094458

Description

ABSTRACT:
A method and apparatus used for designing printed circuit boards to meet current leakage requirement by determining an approximate model of electric fields based on a structure between two conductors on an outer surface of a printed circuit board; deriving an effective permittivity of the model of the electric fields; calculating a plurality of electric fields using the derived effective permittivity by varying a distance between the two conductors, a thickness of the printed circuit board, and an applied voltage between the two conductors; plotting a graph of the calculated plurality of electric fields; and selecting by using the graph a configuration of the two conductors so as to meet the current leakage requirement. A printed circuit board has a set of conductors on the outer surfaces of the printed circuit board; another set of conductors interior to the printed circuit board; and a solder mask that covers only the set of conductors on the outer surfaces of the printed circuit board.

REFERENCES:
patent: 2005/0221128 (2005-10-01), Kochergin

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