Ejector with multi-ejection pins

Details Ejector with multi-ejection pins Ejector with multi-ejection pins

2007-04-03

2007-04-03

Del Sole, Joseph S. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

By differential gas pressure ejecting means

C425S577000, C425SDIG060

Reexamination Certificate

active

10980317

ABSTRACT:
An ejector with multi-ejection pins is used in the post-processes of the semiconductor industry and is used by a selection device to choose a predetermined quantity of ejection pins. When a propelling device lifts the selection device, a pin-base vertical driver controls the vertical motion of a pin base, and a pin-base motion device controls the planar motion of the pin base; the chosen ejection pins can be lifted to elevate the respective dies for separation from adhesive film.

REFERENCES:
patent: 4009978 (1977-03-01), Hanning
patent: 4212623 (1980-07-01), Allen
patent: 4573900 (1986-03-01), Smith
patent: 4806088 (1989-02-01), Busch et al.
patent: 4861534 (1989-08-01), Boehm et al.
patent: 5849237 (1998-12-01), Inoue
patent: 6129881 (2000-10-01), Puniello
patent: 6422850 (2002-07-01), Shannon et al.
patent: 6817852 (2004-11-01), Lavallee
patent: 6877974 (2005-04-01), Puniello et al.
patent: 298667 (1997-02-01), None
patent: 470210 (2001-12-01), None

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