High density connector for stacked circuit boards
First Claim
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1. A connector for providing electrical connection between pads on the surfaces of stacked circuit boards comprising:
- a pair of flexible sheets, each having major surfaces and exhibiting anisotropic conduction between the major surfaces;
a spacer element mounted between the pair of flexible sheets, the spacer element comprising an array of individual, stand-alone, conductive elements which are held in place by a spacer body; and
a clamping assembly which aligns the spacer and stack of circuit boards in three perpendicular directions and includes a spring-loaded screw assembly comprising a screw inserted within a coil spring for exerting a uniform force over the major surfaces of the sheets.
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Abstract
Disclosed is a device for electrically coupling stocked circuit boards using conductive polymer interconnect material and a spacer element. In one embodiment, coaxial connection is provided by means of an array of wires within undulating metal envelopes. In another embodiment, pins are provided within holes in a plastic spacer. In a third embodiment, wires are laid on a substrate and successive laminations are built up to form the spacer element. In a fourth embodiment, wire arrays are extrusion molded within thermoplastic sheets which are laminated to form the spacer element.
123 Citations
10 Claims
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1. A connector for providing electrical connection between pads on the surfaces of stacked circuit boards comprising:
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a pair of flexible sheets, each having major surfaces and exhibiting anisotropic conduction between the major surfaces; a spacer element mounted between the pair of flexible sheets, the spacer element comprising an array of individual, stand-alone, conductive elements which are held in place by a spacer body; and a clamping assembly which aligns the spacer and stack of circuit boards in three perpendicular directions and includes a spring-loaded screw assembly comprising a screw inserted within a coil spring for exerting a uniform force over the major surfaces of the sheets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification