Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1978-07-26
1980-03-04
Goolkasian, John T.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
29625, 156313, 156330, 174 685, 428415, 428416, 428901, 528103, 525 4, B32B 2712, B32B 1710
Patent
active
041918002
ABSTRACT:
Processes and devices are described which employ flexible substrates made from cloth impregnated with a resin of a particular composition. The flexible substrate is made into double-clad printed wiring substrate for use in double-sided circuits. These substrates exhibit excellent dimensional stability during circuit fabrication and soldering as well as excellent flame retardance and electrical insulation resistance.
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Bell Telephone Laboratories Incorporated
Gallagher J. J.
Goolkasian John T.
Nilsen Walter G.
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