Multilayer circuit board with reduced susceptability to shorts c

Details Multilayer circuit board with reduced susceptability to shorts c Multilayer circuit board with reduced susceptability to shorts c

1988-04-15

1990-04-17

Thompson, Gregory N.

Electricity: electrical systems and devices

Miscellaneous

361397, H05K 111

Patent

active

049185748

ABSTRACT:
A multilayer circuit board having a conformal layer of an insulating material separating a circuit core from an adjacent insulating layer is disclosed. The conformal layer encapsulates the substrate and conductive pattern of circuit lines in the circuit core, thereby reducing failures caused by impurities trapped during lamination. The multilayer circuit board is manufactured by coating at least one circuit core with the conformal layer of insulating material before final lamination of the circuit cores into a multilayer circuit board.

REFERENCES:
patent: 3509624 (1970-05-01), Boucher
patent: 3704678 (1973-06-01), Hill
patent: 3932932 (1976-01-01), Goodman
patent: 4591220 (1986-05-01), Impey
patent: 4606787 (1986-08-01), Pelligrino
patent: 4789423 (1988-12-01), Pelligrino

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