Method for making circuit board having a metal support

Metal working – Method of mechanical manufacture – Electrical device making

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Details

29832, 29840, 156902, 428901, H01K 310

Patent

active

052109410

ABSTRACT:
A double-sided printed circuit board and a method for making the circuit board. The circuit board includes a metal support that functions as both a heat sink and a ground plane. The circuit board contains a dielectric having first and second conductive foil platings on opposing sides of the dielectric. Prior to bonding the first foil plating to the metal support with a conductive adhesive, a standard protective coating on the first foil plating, which typically remains on the foil plating in conventional practice, is removed in order to expose a bare surface of the first foil plating. The exposed bare surface of the first foil plating is then bonded to the metal support before any substantial oxidation or a build up of impurities on the first foil plating surface can occur.

REFERENCES:
patent: 4294009 (1981-10-01), Quintin et al.
patent: 4496793 (1985-01-01), Hanson et al.
patent: 4499152 (1985-02-01), Green et al.
patent: 4616413 (1986-10-01), Ilrou et al.
patent: 4814040 (1989-03-01), Ozawa
Technical Information Brochures from Dow Corning.
Brochure from Arlon disclosing adhesives for electronic materials.

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