Insulating film with improved punching characteristics and lead

Details Insulating film with improved punching characteristics and lead Insulating film with improved punching characteristics and lead

1996-12-04

1998-11-17

Schwartz, Pamela R.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428344, 4284735, 257666, 257668, 257783, B32B 712, H01L 23495

Patent

active

058373683

ABSTRACT:
The occurrence of burrs and chips in punching an insulating film is suppressed by adjusting an edge tearing resistance of the insulating film. The edge tearing resistance is preferably 50 to 70 kgf/20 mm for the purpose of suppressing the burrs and the chips.

REFERENCES:
patent: 4862245 (1989-08-01), Pashby te al.
patent: 5102722 (1992-04-01), Iida et al.
patent: 5277972 (1994-01-01), Sakumoto et al.

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