Interposer assembly and method
AssigneeAmphenol InterCon Systems, Inc.
InventorPaul R. Taylor
Life of this patent
Estimating the term…
Abstract
An interposer assembly including a plate and a plurality of metal contacts extending through passages in the plate for forming electrical connections with pads on overlying and underlying substrates. The contacts include a number of contact units with elastic cantilever and torsion springs. Current flows through the contact units with minimum resistance.
Claims25
An interposer assembly for forming electrical connections between contacts on opposed substrates,
- the assembly comprising an insulating plate having a top surface, a bottom surface, a thickness between the top surface and the bottom surface, and a plurality of contact passages in the plate extending between the top surface and the bottom surface;
- and a plurality of one-piece electrical contacts, each contact positioned in a contact passage and comprising a first contact end at one surface, a second contact end at the other surface,
- each contact comprising a contact retention member having an arm, the arm having a friction retention surface on an end of the arm, such surface engaging the interior of the contact passage,
- and a contact unit in the contact passage, the contact unit comprising a plurality of parallel-oriented elastic torsion and elastic cantilever springs and two spaced strips, said springs extending between said strips whereby movement of the substrates towards the plate to establish electrical connections between the contact ends and the pads on the substrates reduces a height of the contact unit in the contact passage by simultaneous elastic twisting and elastic bending of the torsion and cantilever spring in the passage to provide contact pressure between the contact ends and pads.
An interposer assembly for forming electrical connections between contacts on opposed substrates,
- the assembly comprising an insulating plate, a plurality of through passages extending through the plate, a plurality of one-piece metal contacts in the passages;
- each contact comprising opposed ends located at top and bottom surfaces of the plate, a contact retention member having an arm with an arm surface engaging a side of one of said passages to moveably hold the contact in the one of said passages, and a plurality of contact units spaced along the one of said passages,
- each contact unit comprising a plurality of combination cantilever and torsion spring members extending between two spaced apart strips, each contact unit having an uncompressed length extending along the one of said passages and a compressed length extending along the one of said passages less than the uncompressed length,
- wherein when said contacts are compressed in said one of said passages the spring members are simultaneously elastically twisted and elastically bent to store energy, such stored energy recoverable when the contact is released and the spring members expand to the uncompressed length.
An interposer assembly comprising an insulating body with opposed parallel surfaces, a plurality of contact passages in the body extending between the surfaces, each contact passage having two opposed passage walls and a uniform cross section between the surfaces;
- and a metal contact in each passage, each contact comprising two contact ends at body surfaces to engage pads on substrates,
- a contact unit comprising a plurality of parallel-oriented elastic torsion and elastic cantilever springs and two spaced strips, said springs extending between said spaced strips, a first conductor extending from one support strip along the contact passage to one contact end, and a second conductor extending from the other support member along the contact passage to the other contact end,
- a retention member comprising an arm having a friction retention surface on the end of the arm, the friction retention surface engaging the body wherein said contact ends extend outwardly of said surfaces and movement of the contact ends toward the body moves the spaced strips along the contact passage in opposite directions to elastically flex and twist the spring arms simultaneously.
Dependencies are inferred from the claim text.