Leadframe having severable fingers for aligning one or more elec

Details Leadframe having severable fingers for aligning one or more elec Leadframe having severable fingers for aligning one or more elec

1984-03-29

1985-08-20

Tolin, G. P.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361421, 361403, 357 70, H05K 720

Patent

active

045368252

ABSTRACT:
The present invention discloses a plurality of severable alignment fingers integrally formed with a leadframe for selectively aligning one or more electronic circuit device components, that may be of different physical dimensions, positioned on the leadframe. Upstanding positioning tabs are integrally formed on the sides, on the ends, or on both the sides and on the ends of corresponding alignment fingers that abut the confronting surfaces of the one or more electronic circuit device components positioned on the leadframe to selectively align the components. The upstanding positioning tabs may be so spaced apart on corresponding alignment fingers as to provide a supporting surface for partially supporting the confronting bottom surface of the electronic circuit device component positioned on the leadframe. The leadframe includes longitudinally extending dambars and transversely extending connector strips, and the alignment fingers can advantageously be integrally formed with the connector strips, with the dambars, or with both the dambars and the connector strips. The alignment fingers are preferably formed on the leadframe in such spaced relation that the upstanding positioning tabs abut corresponding corners of the electronic circuit device components, although other suitable spacing may be employed. The alignment fingers are severable from the leadframe prior to as well as after encapsulation.

REFERENCES:
patent: 3651448 (1972-03-01), Pauza
patent: 4012766 (1977-03-01), Phillips
patent: 4054238 (1977-10-01), Lloyd
patent: 4224637 (1980-09-01), Hargis
patent: 4471158 (1984-09-01), Roberts

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