Positive stop, pick up tool

Details Positive stop, pick up tool Positive stop, pick up tool

1986-06-02

1989-05-23

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With gas, vapor, or flame contact means for work

156556, 156562, 29743, B23P 1904, B32B 3500

Patent

active

048327840

ABSTRACT:
The present invention consists of a positive stop, pick up tool for use in precisely placing a die and leaving the required die attach material thickness between the die and the package substrate. The tool comprises: a body; a pad attached to the body for picking up dice; and positive stop pins attached to the body and extending a distance from the body equal to the distance the pad extends from the body plus the thickness of the die plus the required thickness of the die attach material.

REFERENCES:
patent: 3834966 (1974-09-01), Kelly
patent: 3855034 (1974-12-01), Miller
patent: 4292116 (1981-09-01), Takahashi
patent: 4507861 (1985-04-01), Sprenkle

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