Method of making mandrels and circuits therefrom

Details Method of making mandrels and circuits therefrom Method of making mandrels and circuits therefrom

1997-02-10

1999-07-20

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Electrical device making

29830, 205 67, H05K 302

Patent

active

059241934

ABSTRACT:
The present invention generally includes a process in which a mandrel for semi-additive construction of circuitry is fabricated by laminating shim stock or foil of stainless steel onto a suitable deformable substrate such as a polyimide glass board. Dimples for making raised features on circuitry are formed in the mandrel with a tool. The use of shim stock makes the mandrel relatively light and suitable for automated processing similar to that used to construct circuits on circuit boards.

REFERENCES:
patent: 4116517 (1978-09-01), Selvin et al.
patent: 4528577 (1985-07-01), Cloutier et al.
patent: 5207887 (1993-05-01), Crumly et al.

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