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Title: Polymer thick-film conductors and dielectrics for membrane switches and flexible circuitry

Abstract

The fabrication and operation of membrane switches are discussed. The membrane switch functions as a normally open, momentary contact, low-voltage pressure-sensitive device. Its design is a three-layer sandwich usually constructed of polyester film. Conductive patterns are deposited onto the inner side of top and bottom sheets by silk screening. The center spacer is then placed between the two circuit layers to form a sandwich, generally held together by an adhesive. When pressure is applied to the top layer, it flexes through the punched openings of the spacer to establish electrical contact between conductive pads of the upper and lower sheets, momentarily closing the circuit. Upon release of force the top sheet springs back to its normal open position. The membrane touch switch is being used in a rapidly expanding range of applications, including instrumentation, appliances, electronic games and keyboards. Its board acceptance results from its low cost, durability, ease of manufacture, cosmetic appeal and design flexibility. The principal electronic components in the membrane switch are the conductor and dielectric.

Authors:
Publication Date:
Research Org.:
Du Pont de Nemours (E.I.) and Co., Wilmington, DE (USA)
OSTI Identifier:
6449690
Report Number(s):
N-84-21994
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; SWITCHES; FABRICATION; ELECTRIC CONDUCTORS; INKS; POLYMERS; POWDERS; RHEOLOGY; SILVER; SOLVENTS; USES; ELECTRICAL EQUIPMENT; ELEMENTS; EQUIPMENT; METALS; TRANSITION ELEMENTS; 420800* - Engineering- Electronic Circuits & Devices- (-1989)

Citation Formats

Nazarenko, N. Polymer thick-film conductors and dielectrics for membrane switches and flexible circuitry. United States: N. p., 1983. Web.
Nazarenko, N. Polymer thick-film conductors and dielectrics for membrane switches and flexible circuitry. United States.
Nazarenko, N. Tue . "Polymer thick-film conductors and dielectrics for membrane switches and flexible circuitry". United States.
@article{osti_6449690,
title = {Polymer thick-film conductors and dielectrics for membrane switches and flexible circuitry},
author = {Nazarenko, N},
abstractNote = {The fabrication and operation of membrane switches are discussed. The membrane switch functions as a normally open, momentary contact, low-voltage pressure-sensitive device. Its design is a three-layer sandwich usually constructed of polyester film. Conductive patterns are deposited onto the inner side of top and bottom sheets by silk screening. The center spacer is then placed between the two circuit layers to form a sandwich, generally held together by an adhesive. When pressure is applied to the top layer, it flexes through the punched openings of the spacer to establish electrical contact between conductive pads of the upper and lower sheets, momentarily closing the circuit. Upon release of force the top sheet springs back to its normal open position. The membrane touch switch is being used in a rapidly expanding range of applications, including instrumentation, appliances, electronic games and keyboards. Its board acceptance results from its low cost, durability, ease of manufacture, cosmetic appeal and design flexibility. The principal electronic components in the membrane switch are the conductor and dielectric.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {11}
}

Technical Report:
Other availability
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