Method for manufacturing low cost electroluminescent (EL)...

Details Method for manufacturing low cost electroluminescent (EL)... Method for manufacturing low cost electroluminescent (EL)...

2007-08-14

2007-08-14

Williams, Joseph L. (Department: 2879)

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

C029S622000

Reexamination Certificate

active

10608370

ABSTRACT:
A method for manufacturing low cost electroluminescent (EL) illuminated membrane switches is disclosed. The method includes the steps of die cutting, embossing or chemically etching the metal foil surface of a metal foil bonded, light transmitting flexible electrical insulation to simultaneously form one or more front capacitive electrodes, membrane switch contacts and electrical shunt, electrical distribution means and electrical terminations that together form a flexible printed circuit panel. This continuous flexible printed circuit substrate is then used with a precisely positioned indexing system.

REFERENCES:
patent: 5950808 (1999-09-01), Tanabe et al.

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