Method of making a flexible microcircuit

Details Method of making a flexible microcircuit Method of making a flexible microcircuit

1986-08-04

1987-12-08

Smith, John D.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

437245, B05D 512

Patent

active

047117915

ABSTRACT:
A method is disclosed for producing a flexible microcircuit of a size usable in vivo in the arterial or venous tract of a human. The method comprises forming, by various photoresist techniques, conductive runs on a polyimide base of about 1-2 mils thickness. Each end of a flexible microcircuit has minute holes formed therein for connection to an electronic chip and to hard wiring. The method produces holes in the conductive runs for the electronic chip connection of about 0.002 inches in diameter and holes about 0.016 inches in diameter at the end for wiring.

REFERENCES:
patent: 3881884 (1975-05-01), Cook
patent: 4108717 (1978-08-01), Widmann
patent: 4152195 (1979-05-01), Bahrle
patent: 4200668 (1980-04-01), Segal
patent: 4508813 (1985-04-01), Nakagawa
patent: 4563407 (1986-01-01), Matsui

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