Metal working – Method of mechanical manufacture – Electrical device making
Patent
1989-07-19
1991-12-24
Simmons, David A.
Metal working
Method of mechanical manufacture
Electrical device making
29840, 29843, 29848, 156155, 156182, 156241, 156247, 156631, 156902, H05K 300, B32B 3100
Patent
active
050740350
ABSTRACT:
Method of making a multilayer printed circuit including one or more thin film laminates having a circuit etched thereon without tearing, bending, or wrinkling the laminate during fabrication and which allows the use of standard multilayer etching and registration processes. The method involves the application of a low melting point plastic adhesive to a temporary backing for adhering a thin film laminate to the backing for etching and registration. A high melting point adhesive is then used to laminate an inner layer assembly to the thin film laminate/temporary backing assembly and the temporary backing removed by heating to the melting point of the plastic adhesive. The method can be used to make multilayer printed circuits or a circuit for a blasting cap for initiating the explosion of a secondary explosive.
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Harper, C. A. ed., Handbook of Wiring, Cabling, and Interconnecting for Electronics, p.1-41, 1972.
Barry Chester T.
Excello Circuits
Simmons David A.
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