Electrodeposited contact terminal for use as an electrical connector or semiconductor packaging substrate
First Claim
Patent Images
1. An electrical assembly comprising:
- an electrical connector comprising;
a substrate with a plurality of openings corresponding to a desired arrangement of electrodeposited terminals;
electrodeposited terminals located in the openings in the substrate, the electrodeposited terminals comprising neck portions with a first cross-sectional shape and distal portions having a second cross-sectional shape larger than the first cross sectional shape, wherein the distal portions and at least a portion of the neck portions are attached to, and extend above, a first surface of the substrate to create free standing electrodeposited terminals, the distal portions include cantilevered portions that extend beyond the neck portions that create undercuts located between the distal portions and the first surface of the substrate;
a dielectric material located on a second surface of the substrate with terminal openings aligned with proximal portions of the electrodeposited terminals;
a first circuit member with electrical terminals positioned in the terminal openings and electrically coupled to the proximal portions of the electrodeposited terminals; and
a second circuit member electrically coupled to the distal ends of the electrodeposited terminals, wherein the second circuit member comprises an interconnect having spring contact members located in openings, wherein protrusions on the spring contact members form a compressive engagement with the neck portions of the electrodeposited terminals.
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Accused Products
Abstract
An electrical connectors with electrodeposited terminals that are grown in place by electroplating cavities formed in a series of resist layers. The resist layers are subsequently stripped away. The resulting terminal shape is defined by the shape of the cavity created in the resist layers. Complex terminal shapes are possible. The present conductive terminals are particularly useful for electrical interconnects and semiconductor packaging substrates.
461 Citations
20 Claims
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1. An electrical assembly comprising:
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an electrical connector comprising; a substrate with a plurality of openings corresponding to a desired arrangement of electrodeposited terminals; electrodeposited terminals located in the openings in the substrate, the electrodeposited terminals comprising neck portions with a first cross-sectional shape and distal portions having a second cross-sectional shape larger than the first cross sectional shape, wherein the distal portions and at least a portion of the neck portions are attached to, and extend above, a first surface of the substrate to create free standing electrodeposited terminals, the distal portions include cantilevered portions that extend beyond the neck portions that create undercuts located between the distal portions and the first surface of the substrate; a dielectric material located on a second surface of the substrate with terminal openings aligned with proximal portions of the electrodeposited terminals; a first circuit member with electrical terminals positioned in the terminal openings and electrically coupled to the proximal portions of the electrodeposited terminals; and a second circuit member electrically coupled to the distal ends of the electrodeposited terminals, wherein the second circuit member comprises an interconnect having spring contact members located in openings, wherein protrusions on the spring contact members form a compressive engagement with the neck portions of the electrodeposited terminals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An electrical assembly comprising:
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an electrical connector comprising; a substrate with a plurality of openings corresponding to a desired arrangement of electrodeposited terminals; electrodeposited terminals located in the openings in the substrate, the electrodeposited terminals comprising neck portions with a first cross-sectional shape and distal portions having a second cross-sectional shape larger than the first cross sectional shape, wherein the distal portions and at least a portion of the neck portions are attached to, and extend above, a first surface of the substrate to create free standing electrodeposited terminals, the distal portions include cantilevered portions that extend beyond the neck portions that create undercuts located between the distal portions and the first surface of the substrate; a first circuit member comprising a flexible circuit member located on a second surface of the substrate with a plurality of terminal openings aligned to receive proximal portions of the electrodeposited terminals, the flexible circuit member including a plurality of circuit traces electrically coupled to the electrodeposited terminals; and a second circuit member electrically coupled to the distal ends of the electrodeposited terminals, wherein the second circuit member comprises contact members that provide a zero insertion force or low insertion force engagement with the neck portions of the electroplated terminals. - View Dependent Claims (18, 19)
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20. An electrical assembly comprising:
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an electrical connector comprising; a substrate with a plurality of openings corresponding to a desired arrangement of electrodeposited terminals; electrodeposited terminals located in the openings in the substrate, the electrodeposited terminals comprising neck portions with a first cross-sectional shape and distal portions having a second cross-sectional shape larger than the first cross sectional shape, wherein the distal portions and at least a portion of the neck portions are attached to, and extend above, a first surface of the substrate to create free standing electrodeposited terminals, the distal portions include cantilevered portions that extend beyond the neck portions that create undercuts located between the distal portions and the first surface of the substrate; a dielectric material located on a second surface of the substrate with terminal openings aligned with proximal portions of the electrodeposited terminals; a first circuit member with electrical terminals positioned in the terminal openings and electrically coupled to the proximal portions of the electrodeposited terminals; and a second circuit member electrically coupled to the distal ends of the electrodeposited terminals, wherein the second circuit member comprises contact members that provide a zero-insertion force or low insertion force engagement with the neck portions of the electroplated terminals.
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Specification