Apparatus for making rolling spot bonds

Details Apparatus for making rolling spot bonds Apparatus for making rolling spot bonds

1984-03-07

1986-05-27

Godici, Nicholas P.

Metal fusion bonding

Process

Using high frequency vibratory energy

228 11, 1565802, B23K 106

Patent

active

045910871

ABSTRACT:
An ultrasonic transducer is provided with a wedge bonding tool having an arcuate convex working face. The wedge bonding tool is engaged on top of a foil finger of a connector to be spot bonded to a terminal or pad on a device or substrate. As force and ultrasonic power are applied to the bonding wedge it is rocked or pivoted about a pivot point on the working face of the wedge bonding tool to produce a rolling spot bond between the foil finger and the terminal or pad.

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patent: 3505726 (1970-04-01), Kleinedler et al.
patent: 3575333 (1971-04-01), Kulicke, Jr.
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patent: 3593906 (1971-07-01), Hug
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patent: 3863826 (1975-02-01), Shoh
patent: 3954217 (1976-05-01), Smith
patent: 4071180 (1978-01-01), Dupuis
patent: 4438880 (1984-03-01), Smith et al.

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