Method of preventing deformation of lead frames

Details Method of preventing deformation of lead frames Method of preventing deformation of lead frames

1994-09-16

1995-12-19

Vo, Peter

Metal working

Method of mechanical manufacture

Electrical device making

29856, 29DIG12, 257676, 361813, H01L 2148, C25D 502

Patent

active

054759188

ABSTRACT:
Based on the fact that those portions of a lead frame which are liable to undergo deformation are the to-be-nonplated portions, the to-be-nonplated portions defined around the to-be-plated portions are covered with an adhesive tape or a resin film before the lead frame is subjected to a plating treatment, whereby to prevent deformation of the lead frame from the stage preceding to the surface treating step.

REFERENCES:
patent: 4033844 (1977-07-01), Pantiga et al.
patent: 4089733 (1978-05-01), Zimmerman
patent: 4835120 (1989-05-01), Mallik et al.
patent: 4894752 (1990-01-01), Murata et al.
patent: 5227662 (1993-07-01), Ohno et al.

Affiliated with

Also associated with

Rating

Method of preventing deformation of lead frames does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of preventing deformation of lead frames, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preventing deformation of lead frames will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-985898