Method for sticking an insulating film to a lead frame

Details Method for sticking an insulating film to a lead frame Method for sticking an insulating film to a lead frame

1994-05-13

1997-06-03

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156322, 156518, 83 13, 83 55, 83684, B32B 3120, B26D 100

Patent

active

056350090

ABSTRACT:
A method for punching an insulating film is composed of using plural divided punches having a clearance between each two of the divided punches. The clearance absorbs thermal expansion of the divided punches caused by receiving a heat from a heater. A punched insulating film is stuck to a lead frame by being pressed between the divided punches and the heater.

REFERENCES:
patent: 4279682 (1981-07-01), Hamagami et al.
patent: 4289568 (1981-09-01), Trotsky et al.
patent: 4581096 (1986-04-01), Sato
patent: 4862245 (1989-08-01), Pashby et al.
patent: 4985105 (1991-01-01), Masuda
patent: 5507910 (1996-04-01), Miyajima
Akaro et al., Abstract of SU 1613234, Dec. 7, 1990.

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