Etching a substrate: processes – Forming or treating electrical conductor article – Forming or treating lead frame or beam lead
Patent
1995-03-21
1997-05-13
Picardat, Kevin
Etching a substrate: processes
Forming or treating electrical conductor article
Forming or treating lead frame or beam lead
438111, 148537, 29827, H01L 2160
Patent
active
056292392
ABSTRACT:
A semiconductor chip connection component having numerous leads extending side-by-side across a gap in a support structure, each lead having a frangible section to permit detachment of one end of the lead from the support structure in a bonding process. The frangible sections are formed by treating the lead-forming material in an elongated treatment zone extending across the regions occupied by numerous leads. The process avoids the need for especially fine etching to form notches in the lateral edges of the leads.
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DiStefano Thomas H.
Fjelstad Joseph
Karavakis Konstantine
Smith John W.
Picardat Kevin
Tessera Inc.
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