Metal working – Piezoelectric device making
Patent
1996-11-07
1999-08-17
Cuda, Irene
Metal working
Piezoelectric device making
298901, 29611, B23P 1500
Patent
active
059374942
ABSTRACT:
A double-sided electrical interconnect flexible circuit particularly useful for ink-jet pens and a method for assembling an ink-jet pen with the flexible circuit is described. A wide web, dielectric, flexible tape, such as of a polyimide material, is used to allow the substantially simultaneous formation of redundant flexible circuits across the web. The web is laminated with a conductive material foil and a plurality of redundant circuit patterns formed on the web in a single masking and etching process, or the like. A cover layer, also of a wide web format, dielectric material is coated over the circuit patterned conductive layer. Vias are provided in both the tape under layer and the tape over layer for appropriate electrical connections whereby a first device, such as an ink-jet printer controller, can be connected through one layer and a second device, such as a replaceable ink-jet pen's electrically active components can be connected through the other layer.
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3M Electronics Products Division Brochure, 1993, "Two Layer TAB & Microflex Products from 3M".
3M Electronics Products Division Brochure, 1994, Specifications: Two-Layer Thick Dielectric Tape For Automated Bonding (TAB), pp. 1-8.
3M Electronic Products Division Brochure, 1994, Design Guidelines: Two-Layer Thick Dielectric Tape For Automated Bonding (TAB), pp. 1-32.
Davis Byron K.
Meyer Neal
Cuda Irene
Hewlett--Packard Company
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