Bonding head assembly

Details Bonding head assembly Bonding head assembly

1991-10-31

1993-03-02

Heinrich, Samuel M.

Metal fusion bonding

Including means to force or clamp work portions together...

Work portion comprises electrical component

228 45, 228 55, B23K 300, B23K 2002

Patent

active

051902052

ABSTRACT:
A bonding head assembly including a retaining block having a vacuum suction hole or electromagnet on its concave surface formed on the undersurface, a central shaft loosely passing through the central hole of the retaining block and having a bonding tool at the lower end, an oscillating ball attached to the upper part of the central shaft. After the bonding tool is brought into in contact with a workpiece, vacuum suction or electromagnet is activated so that the oscillating ball is brought into a tight contact with the concave surface of the retaining block, thus securely retaining the oscillating ball in the retaining block and, as a result, setting the position of the central shaft and therefore the bonding tool.

REFERENCES:
patent: 4875614 (1989-10-01), Cipolla et al.
patent: 4982890 (1991-01-01), Schuster et al.

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