Metal fusion bonding – With means to juxtapose and bond plural workpieces – Including compliant cushioning medium
Patent
1973-09-14
1976-05-04
Shore, Ronald J.
Metal fusion bonding
With means to juxtapose and bond plural workpieces
Including compliant cushioning medium
228106, 29589, B23K 100
Patent
active
RE0287989
ABSTRACT:
Bonding machines have transparent elements on their bonding axes. Magnified optical means are positioned to view bonding tips and integrated-circuit chips simultaneously through the transparent elements thereby facilitating alignment of the chips to the tips. In one embodiment a bonding tip is transparent and a transparent compliant bonding member is utilized in conjunction with the tip to produce compliant bonds. Another embodiment utilizes a transparent tip in a "hard tip" type of bonding operation. A third embodiment utilizes a transparent tray closely positionable to the bonding tip. After alignment of the tip to one of the chips is achieved the tray is removed and bonding proceeds on an accurately positioned substrate.
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Herring Carl Richard
Schneider Fred John
Hampilos Gus T.
Houseweart G. W.
Shore Ronald J.
Tribulski, Jr. P. J.
Western Electric Co. Inc.
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