Baseboard for printed circuit board and method of producing the

Details Baseboard for printed circuit board and method of producing the Baseboard for printed circuit board and method of producing the

1977-09-14

1980-02-12

Lesmes, George F.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 96, 427 98, 428137, 428901, B05D 512

Patent

active

041884159

ABSTRACT:
A baseboard having through-holes for a printed circuit board which baseboard is made from a metal as a substrate, comprising at least one resin coat layer formed on the overall surface of the metal substrate including the inner wall surfaces of the through-holes and having, at the circumferential angular portions of the through-holes, a thickness larger than that on said upper and said lower surface of the metal substrate, and featured by its increased insulation characteristics at the circumferential angular portions of the through-holes, and a method of producing the same.

REFERENCES:
patent: 3034930 (1962-05-01), Foudriat, Jr.
patent: 3296099 (1967-01-01), Dinella
patent: 3334395 (1967-08-01), Cook et al.
patent: 3682785 (1972-08-01), Russo
patent: 3745095 (1973-07-01), Chadwick et al.
patent: 3873756 (1975-03-01), Gall et al.

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