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.

Date of Patent:
Mar. 02, 2010

Filed:

Nov. 14, 2005
Applicants:

Jason Lee, Seoul, KR;

Geun Sik Kim, Sungnam, KR;

Inventors:

Jason Lee, Seoul, KR;

Geun Sik Kim, Sungnam, KR;

Assignee:

Chippac, Inc., Fremont, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01); H01L 23/48 (2006.01);
U.S. Cl.
CPC ...
Abstract

A leadframe chip scale package includes a double leadframe assembly. The first leadframe has a central die paddle and peripheral leads, and the second leadframe, superimposed over the first leadframe in the package, has peripheral leads. The peripheral leads of both leadframes are situated in at least one row along an edge of the package, and in some embodiments in a row along each of the four edges of the package. The leads are patterned such that when the second leadframe is superimposed over the first leadframe, the leads do not contact each other; in a plan view, the leads of the first leadframe appear to be interdigitated with the leads of the second leadframe.


Find Patent Forward Citations

Lee, Jason. (2010). Semiconductor package having double layer leadframe (U.S. Patent No. 7671451). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7671451

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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