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Browse Prior Art Database

Making Flexible Circuits

IP.com Disclosure Number: IPCOM000090839D
Original Publication Date: 1969-Jul-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Miller, RC: AUTHOR [+3]

Abstract

These flat, flexible circuits are made by an additive process. Recesses 1 are abraded ground or otherwise provided in a nonconductive flat, flexible substrate 2 such as a polyester film. Recesses 1 are filled with conductive ink 3 or the like by translational or rotary movement relative to drawdown blade 4 to provide a compact flexible circuit or conductor with parallel drive lines 5 flush with the substrate surface. The depth, width, and length of the circuit-defining recesses are preselected to provide the desired electrical characteristics. Recesses 1 can correspond to any desired circuit pattern, not necessarily parallel arranged drive lines such as 5. The conductive material 3 can be applied by a roller.

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Making Flexible Circuits

These flat, flexible circuits are made by an additive process. Recesses 1 are abraded ground or otherwise provided in a nonconductive flat, flexible substrate 2 such as a polyester film. Recesses 1 are filled with conductive ink 3 or the like by translational or rotary movement relative to drawdown blade 4 to provide a compact flexible circuit or conductor with parallel drive lines 5 flush with the substrate surface. The depth, width, and length of the circuit-defining recesses are preselected to provide the desired electrical characteristics. Recesses 1 can correspond to any desired circuit pattern, not necessarily parallel arranged drive lines such as 5. The conductive material 3 can be applied by a roller.

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