Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Patent
1995-03-06
1996-09-03
Thomas, Laura
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
174250, 361777, H05K 100
Patent
active
055525679
ABSTRACT:
A printed circuit board that has a surface which bears a plurality of circuit board pattern, each pattern being served with at least one individual terminal. The printed circuit board is used for a method of determining the stabilized surface insulation resistance of the substrate of the printed circuit board. The circuit board patterns are spaced-apart so as to lie upon surface band regions extending lengthwise and widthwise of the surface of the printed circuit board, these surface band regions being different from one printed circuit board pattern to another. This arrangement of circuit board patterns results in a substantial surface of the board to be dominated by the patterns suitable for the test procedure.
REFERENCES:
patent: 3360749 (1967-12-01), Settig
patent: 3446972 (1969-05-01), Adler et al.
patent: 3621482 (1971-11-01), Adler
patent: 4289384 (1981-09-01), Samek
patent: 4613924 (1986-09-01), Brault
patent: 5406454 (1995-04-01), Dinger et al.
Fox Randal T.
Peterson John P.
Szymanowski Richard A.
Northern Telecom Limited
Thomas Laura
LandOfFree
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