Lead frame detection apparatus

Details Lead frame detection apparatus Lead frame detection apparatus

1997-09-18

1998-04-21

Williams, Hezron E.

Measuring and testing

Inspecting

340674, 198340, G01M 1900

Patent

active

057419884

ABSTRACT:
In a lead frame detection device used between a bonding machine and a lead frame storage magazine, a lead frame contacting probe is provided on a pivotal contact assembly so that the pivotal movement of the contact assembly that is caused, via the contacting probe, by the thickness of the lead frame(s) is detected by sensors, thus determining the existence or absence of the lead frame(s) on the lead frame guide rails, and, in the case of existence, the number of lead frames on the guide rails.

REFERENCES:
patent: 4476743 (1984-10-01), Kimura
patent: 5041721 (1991-08-01), Smith et al.
patent: 5208464 (1993-05-01), Yonemoto et al.
patent: 5220997 (1993-06-01), Ushiki et al.
patent: 5474228 (1995-12-01), Sato
patent: 5562382 (1996-10-01), Miyoshi
Translation of Abstract JP 55-12747.

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