Browse Prior Art Database

Elastomeric Interposer Using Wires in Elastomer Pad With Controlled Compliance

IP.com Disclosure Number: IPCOM000120490D
Original Publication Date: 1991-Apr-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 1 page(s) / 30K

Publishing Venue

IBM

Related People

Grebe, KR: AUTHOR [+5]

Abstract

A method of fabricating an elastomeric interposer type connector is disclosed, which results in a connector which requires a low overall force for operation, yet maintains a high degree of stiffness in the vicinity of the individual conducting elements, resulting in a high local contact force.

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This is the abbreviated version, containing approximately 100% of the total text.

Elastomeric Interposer Using Wires in Elastomer Pad With Controlled
Compliance

      A method of fabricating an elastomeric interposer type
connector is disclosed, which results in a connector which requires a
low overall force for operation, yet maintains a high degree of
stiffness in the vicinity of the individual conducting elements,
resulting in a high local contact force.

      A conducting wire of gold, gold alloy, or other suitable
material is coated with a relatively stiff elastomer, using standard
processes of dipping, drawing through a die, and curing.  This is
repeated for multiple layers of elastomer until a sufficiently thick
coating is built up.  A multitude of such wires are then aligned
parallel and imbedded in a much softer elastomer.  This structure is
then sliced perpendicular to the direction of the wires to form the
interposer.  The relative hardness of the two elastomers, the
thickness of the coating, and the separation of the wires can be
adjusted to obtain the desired mechanical and electrical properties.

      Disclosed anonymously.