Interface structures for electronic devices

Details Interface structures for electronic devices Interface structures for electronic devices

1996-12-23

1999-05-04

Krass, Frederick

Active solid-state devices (e.g., transistors, solid-state diode

Combined with electrical contact or lead

Of specified configuration

29829, 29832, 156155, 156327, 156345, 216 13, 216 17, 216 56, 216 65, 216 72, 361768, 361774, 361795, 438107, 438118, 438125, 438598, 438940, H01L 23498, H01L 2340

Patent

active

059006749

ABSTRACT:
An interface includes a surface having an electrically conductive pad; a compliant coating over the surface having a via extending to the pad; metallization patterned over the compliant coating and extending into the via; a low modulus dielectric interface layer overlying the compliant coating and having an interface via extending to the metallization; and a floating pad structure including floating pad metallization patterned over the dielectric interface layer with a first portion forming a central pad and a second portion forming an extension from the central pad extending into the interface via. Another interface includes a substrate including a low modulus dielectric interface material having a hole extending at least partially therethrough and a floating contact structure including electrically conductive material coating the hole with at least some of the floating pad metallization forming an extension from the hole. A conductive contact area interface may include an electrically conductive first contact area; an electrically conductive second contact area facing and being substantially aligned with the first contact area; and at least one interface structure coupled between the first and second contact areas and including an electrical conductor having a partially open interior to form a compliant joint between the first and second contact areas.

REFERENCES:
patent: 4641222 (1987-02-01), Derfiny et al.
patent: 4835704 (1989-05-01), Eichelberger et al.
patent: 4894115 (1990-01-01), Eichelberger et al.
patent: 5161093 (1992-11-01), Gorczyca et al.
patent: 5449427 (1995-09-01), Wojnarowski et al.
patent: 5454904 (1995-10-01), Ghezzo et al.
patent: 5527741 (1996-06-01), Cole et al.

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