Metal fusion bonding – Process – Plural joints
Patent
1983-09-09
1986-01-21
Ramsey, Kenneth J.
Metal fusion bonding
Process
Plural joints
29834, 361400, H01L 2198
Patent
active
045653143
ABSTRACT:
The so-called blind assembly operation involving precise registration between the blind side of chip carriers or similar macro scale subassemblies and a metallized (patterned) support member requires improvements to reduce packaging costs. The proposal is to form indents aligned in both mating surfaces and place an aligning ball in the lower indent. The upper surface is positioned approximately and manipulated in x and y directions until the alignment ball recesses into both indents.
REFERENCES:
patent: 3184831 (1965-05-01), Siebertz
patent: 3379937 (1968-04-01), Shepherd
patent: 4032058 (1977-06-01), Riseman
patent: 4070120 (1978-01-01), Bald et al.
patent: 4288808 (1981-09-01), Hantusch
patent: 4332341 (1982-06-01), Minetti
patent: 4421266 (1983-12-01), Bock
AT&T Bell Laboratories
Ramsey Kenneth J.
Wilde Peter V. D.
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