Stepwise autorotation of wire bonding capillary

Details Stepwise autorotation of wire bonding capillary Stepwise autorotation of wire bonding capillary

1997-12-17

1999-12-07

Ryan, Patrick

Metal fusion bonding

With means to juxtapose and bond plural workpieces

Wire lead bonder

228 11, 228 55, 2281101, 2281805, B23K 3700, B23K 106, B23K 302

Patent

active

05996877&

ABSTRACT:
A rotation device (100) provides precise, stepwise rotation of a wire bonding capillary (10) about the longitudinal axis of the capillary. This enables the capillary (10) to be rotated to different angular alignments to perform wire bonding in different directions. The rotation device (100) can be a click ring-type device, a cam-type device or any other device to provide stepwise rotation. At least a part of the rotation device (100) is coupled to the capillary (10). Another part of the rotation device is separate from the capillary but engageable with the first part to provide rotation. Indicators may be positioned on the capillary to provide signals to detectors. The signals can be used to initially align the capillary and to realign the capillary during wire bonding. A computer may be used to provide automated control of the indicators and detectors, and automated rotation of the rotation device.

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patent: 4821945 (1989-04-01), Chase et al.
patent: 4870743 (1989-10-01), Gilmore
patent: 5326014 (1994-07-01), Morita et al.
patent: 5368216 (1994-11-01), Sakakura et al.
patent: 5544804 (1996-08-01), Test et al.
patent: 5829663 (1998-11-01), Khelemsky et al.

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