Title:
MEMBRANE SWITCH CIRCUIT LAYOUT AND METHOD FOR MANUFACTURING
Document Type and Number:
WIPO Patent Application WO2003002346
Kind Code:
A3
Abstract:
A membrane switch circuit layout and method for producing a membrane switch circuit layout are disclosed. The membrane switch circuit layout may have two or more membrane layers. Each membrane has a top surface and a bottom surface. A conductive circuit trace is printed on the top surface of each membrane. The membrane layers are placed in a stack with each top membrane having thru-holes selectively cut there through. Thus, for example, in a layout having two membrane layers, the first membrane is positioned beneath the second membrane and he second membrane has thru-holes cut there through. Conductive ink may be pressed through the thru-holes to provide electrical connection between the circuit traces printed on the membrane layers. An adhesive may be placed between the membrane layers as either adhesive printed on one of the membrane layers or as an additional layer.
Inventors:
NELSON WAYNE (US)
THEISEN JOEL (US)
PESONEN JOHN (US)
THEISEN JOEL (US)
PESONEN JOHN (US)
Application Number:
PCT/US2002/020429
Publication Date:
May 22, 2003
Filing Date:
June 27, 2002
Export Citation:
Assignee:
ICORP (US)
NELSON WAYNE (US)
THEISEN JOEL (US)
PESONEN JOHN (US)
NELSON WAYNE (US)
THEISEN JOEL (US)
PESONEN JOHN (US)
International Classes:
H01H13/702; (IPC1-7): H01H1/10; H01H13/70; H01L21/00
Foreign References:
| US6046417A | 2000-04-04 | |||
| US5072077A | 1991-12-10 | |||
| US5438177A | 1995-08-01 | |||
| US5228562A | 1993-07-20 |
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