MANUFACTURE OF METALLIC BASE PRINTED BOARD

PURPOSE:To form an accurate and miniature pattern and to improve insulating reliability of an opening by coating the surface and opening of a metal plate in which predetermined portions are opened with resin by fluidizing and dipping, then forming a circuit with conductive paste, and forming through...

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creator FUKUSHIMA MUNEHIKO
description PURPOSE:To form an accurate and miniature pattern and to improve insulating reliability of an opening by coating the surface and opening of a metal plate in which predetermined portions are opened with resin by fluidizing and dipping, then forming a circuit with conductive paste, and forming through holes as required. CONSTITUTION:An opened metal plate 5 is treated in a fluidizing and dipping tank of resin powder for forming an insulating layer of epoxy resin, polyamide, etc., the surface and, opening 6 are covered with resin to form a resin insulating layer 7. After a circuit 8 is formed with conductive paste on the layer 7, holes 6 to be filled with resin of the plate 5 are opened. Further, if necessary, through hole conductive layers 9 are formed in the holes 6 by means, such as through hole plating or conductive paste coating, etc.
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subjects CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
title MANUFACTURE OF METALLIC BASE PRINTED BOARD
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