1. Development of paper membrane switches for fully featured computer keyboards
- Author
-
David Harrison and B.J. Ramsey
- Subjects
Membrane switch ,Keyboard switch membranes ,Lithographic printing ,Paper substrates ,Flexible circuits ,Conductive inks ,Lithography ,Engineering ,Offset (computer science) ,Fabrication ,Computer Applications ,business.industry ,Electrical engineering ,Application software ,computer.software_genre ,Membrane ,business ,computer ,Electrical conductor - Abstract
This paper documents the successful development and evaluation of a novel membrane switch. The process results in lower environmental burdens and manufacturing costs than current screen-printed polyester solutions. Detailed is the evaluation of offset lithographically printed conductive tracks on paper substrates for application in computer keyboard assemblies. Offset lithographic printing of conductive tracks is an emerging fabrication technique finding application in low-cost, high volume, flexible circuitry applications. Several fully featured demonstration keyboards and switch membranes have been constructed and tested. These are currently in use in office environments and are presented.
- Published
- 2002