Resilient interconnection bridge

Details Resilient interconnection bridge Resilient interconnection bridge

1993-08-18

1994-08-23

Nguyen, Khanh

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

4254031, 2491141, 249115, 249134, 249135, B29C 3356, B29C 3910, B29C 3926, B29C 4142

Patent

active

053402960

ABSTRACT:
An elastomeric member is incorporated between a conductor and a conductive interconnection bridge. This elastomeric member serves as a spring providing compliance to an interconnection so that the flatness requirements of an opposing mating structure may be relaxed. A flat metal mandrel is provided with an elongated curved depression extending across a predetermined region where a resilient interconnection bridge is to be located. A nonconductive layer of Teflon is bonded to the surface of the mandrel. Grooves are ablated in a predetermined configuration down to the conductive surface of the mandrel using an excimer laser and a computer-controlled x-y table. Fineline electrical circuits are electrodeposited into the ablated grooves. The elongated curved depression is filled with a silicone material. The silicone material is permitted to cure to form a compliant elastomeric member having the shape of the elongated curved depression. An insulating backing is laminated onto the electrical circuits and the elastomeric member, and the completed resilient interconnection bridge is removed from the mandrel. Another method is used when the interconnection site is terminated on a circuit pad or on a high density linear connector configuration. In this method, elastomeric material is dispensed onto the circuit pad or along a line transverse to the high density linear connectors. After the elastomeric material has cured, electrical conductors are bonded thereacross to form raised compliant interconnection features.

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patent: 4004774 (1977-01-01), Houston
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patent: 4453795 (1984-06-01), Moulin
patent: 4813129 (1989-03-01), Karnezos
patent: 4848719 (1989-07-01), Gowinner
patent: 4919388 (1990-04-01), Koike et al.
patent: 5197184 (1993-03-01), Crumly et al.
patent: 5233157 (1993-08-01), Schreiber et al.

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