Flip-chip type connection with elastic contacts

Details Flip-chip type connection with elastic contacts Flip-chip type connection with elastic contacts

1997-12-19

1999-12-07

Saadat, Mahshid

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

Combined with electrical contact or lead

Flip chip

257688, 257737, 257777, H01L 2348, H01L 2352, H01L 2940, H01L 2310

Patent

active

059988754

ABSTRACT:
A mounting structure for a self-aligned flip-chip with elastic contacts. The mounting structure provides non-permanent joints combined with auto-aligning structures, and offers a symmetrical elastic alignment ensuring continued centering of the parts. This is done by using a flip-chip structure 200, which is based on a substrate 202 with an elastomer bump structure 204, molded by using anisotropically etched silicon as a mold. The pattern of elastic bumps 204 on the substrate correspond to a pad pattern 210 on a flip-chip 214. The bumps 204 can be coated with gold, and serve both as electrical contacts 206 and for vertical positioning. A guiding frame 212 of an elastomeric material with inclined frame walls 220 is provided around the bumps and is the same shape as the inclined walls 222 of the flip-chip 214.

REFERENCES:
patent: 3292240 (1966-12-01), McNutt et al.
patent: 3543106 (1970-11-01), Kern
patent: 3809625 (1974-05-01), Brown et al.
patent: 4613891 (1986-09-01), Ng et al.
patent: 4660066 (1987-04-01), Reid
patent: 4670770 (1987-06-01), Tai
patent: 5016138 (1991-05-01), Woodman
patent: 5196371 (1993-03-01), Kulesza et al.
patent: 5340296 (1994-08-01), Schreiber et al.
patent: 5381599 (1995-01-01), Hall
patent: 5393697 (1995-02-01), Chang et al.
patent: 5454055 (1995-09-01), Kragl et al.
patent: 5621615 (1997-04-01), Dawson et al.

Affiliated with

Also associated with

Rating

Flip-chip type connection with elastic contacts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flip-chip type connection with elastic contacts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flip-chip type connection with elastic contacts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-827278