Die ejector system using linear motor

Details Die ejector system using linear motor Die ejector system using linear motor

2007-12-11

2007-12-11

Chang, Rick K (Department: 3726)

Metal working

Means to assemble or disassemble

Means to assemble electrical device

C029S739000, C029S740000

Reexamination Certificate

active

10801452

ABSTRACT:
A die ejector system and method for removing a die from an adhesive surface. The system includes an ejector tool that is operative to move relative to the die whereby to push the die. The ejector tool may consist of a collet holder and an ejector pin array. A shaft holds the ejector tool and is in turn coupled to a forcer of a linear motor. The forcer is movable relative to a stator of the linear motor flexure bearings coupled to the shaft guide movement of the ejector tool relative to the die. After the die is pushed by the ejector tool, a die pick-up device removes the die from the adhesive surface.

REFERENCES:
patent: 4234831 (1980-11-01), Kemmer et al.
patent: 4472668 (1984-09-01), Mutschler et al.
patent: 4964211 (1990-10-01), Arao et al.
patent: 4990051 (1991-02-01), Safabakhsh et al.
patent: 5160877 (1992-11-01), Fujiwara et al.
patent: 5492313 (1996-02-01), Pan et al.

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