Metal working – Method of mechanical manufacture – Electrical device making
Patent
1995-02-08
1996-05-07
Hughes, S. Thomas
Metal working
Method of mechanical manufacture
Electrical device making
225103, H05K 334
Patent
active
055134297
ABSTRACT:
Lead wires extending out from an electrical circuit device are removed from respective bonding pads to which they are bonded by a lateral shearing action. Shearing can be accomplished either unidirectionally, or with a bidirectional reciprocating movement. A shearing tool is provided with a single shearing projection for a unidirectional shearing, or with a pair of spaced shearing projections for bidirectional shearing. A vertical alignment is established between the tool and a first lead to be sheared, and this initial alignment is also used for shearing the other leads of the device. With the actual bond between a lead and its bonding pad occupying only a minor portion of the available surface area, a subsequent lead from a replacement device is bonded to the same bonding pad as the first lead by forming a new bond at a different site along the pad.
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Dage Series 22 Microtester Data Sheet Reference 4/88/DB/0/1/5K by Dage Precision Industries Inc., 46701 Fremont Blvd., Fremont, CA 94538 (8 Pages).
Butler Marc W.
Hughes S. Thomas
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