The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2015
Filed:
Jul. 01, 2013
Applicant:
Intersil Americas Inc., Milpitas, CA (US);
Inventor:
Randolph Cruz, West Melbourne, FL (US);
Assignee:
Intersil Americas LLC, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01); H01L 21/48 (2006.01); H01L 23/31 (2006.01);
U.S. Cl.
CPC ...
H01L 23/495 (2013.01); H01L 21/4828 (2013.01); H01L 23/49503 (2013.01); H01L 23/49548 (2013.01); H01L 23/3107 (2013.01); H01L 2224/32245 (2013.01);
Abstract
Systems and methods for lead frame locking design features are provided. In one embodiment, a method comprises: fabricating a lead frame for a chip package, the lead frame having a paddle comprising a step-out bottom locking feature profile across at least a first segment of an edge of the paddle that provides an interface with a mold compound; etching the paddle to have at least a second segment of the edge having either an extended-step-out bottom locking feature profile or an overhanging top locking feature profile; and alternating first and second segments along the edge of the paddle.