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:
Aug. 02, 2011

Filed:

Feb. 12, 2010
Applicants:

Betty H. Yeung, Chandler, AZ (US);

David J. Dougherty, Tempe, AZ (US);

Inventors:

Betty H. Yeung, Chandler, AZ (US);

David J. Dougherty, Tempe, AZ (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

An embodiment of a die assembly includes a flange, lip walls, and leads for electrical contact with one or more die mounted on the flange. The flange has first and second opposed flange surfaces and flange sidewalls extending between the surfaces. The lip walls have first and second opposed lip surfaces and lip sidewalls extending between the first and second lip surfaces. The lip sidewalls are positioned adjacent to the flange sidewalls. The leads, which have inboard end portions and outboard end portions, are configured to preserve a seating plane. The seating plane is spaced apart from a plane of the second flange surface. The inboard end portions of the leads are embedded in the lip walls, and extend from the seating plane upward through the lip walls toward the first lip surfaces. The outboard end portions are aligned substantially within the seating plane.


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