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:
Nov. 14, 2017

Filed:

May. 23, 2017
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Mark Edward Schlarmann, Chandler, AZ (US);

Dwight Lee Daniels, Phoenix, AZ (US);

Stephen Ryan Hooper, Mesa, AZ (US);

Chad Dawson, Queen Creek, AZ (US);

Fengyuan Li, Chandler, AZ (US);

Assignee:

NXP USA, Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/673 (2006.01); H01L 21/66 (2006.01); H01L 23/00 (2006.01); H01L 23/495 (2006.01); H01L 21/56 (2006.01); H01L 21/48 (2006.01); H01L 23/31 (2006.01); H01L 25/065 (2006.01); H01L 25/00 (2006.01); H01L 21/78 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
H01L 22/14 (2013.01); G01R 31/2884 (2013.01); H01L 21/4842 (2013.01); H01L 21/561 (2013.01); H01L 21/78 (2013.01); H01L 23/3114 (2013.01); H01L 23/49503 (2013.01); H01L 23/49541 (2013.01); H01L 23/49575 (2013.01); H01L 24/32 (2013.01); H01L 24/49 (2013.01); H01L 24/73 (2013.01); H01L 24/83 (2013.01); H01L 24/85 (2013.01); H01L 24/92 (2013.01); H01L 24/97 (2013.01); H01L 25/0655 (2013.01); H01L 25/50 (2013.01); H01L 21/67309 (2013.01); H01L 22/32 (2013.01); H01L 2224/32245 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48106 (2013.01); H01L 2224/48137 (2013.01); H01L 2224/48247 (2013.01); H01L 2224/73265 (2013.01); H01L 2224/92247 (2013.01); H01L 2924/14 (2013.01); H01L 2924/1461 (2013.01);
Abstract

A method of testing includes attaching a first and second die to first and second die sites of a lead frame and forming a plurality of wire bonds coupling a plurality of pins of the first die site to the first die and a plurality of pins of the second die site to the second die. The first and second die are encapsulated. An isolation cut is performed to isolate the plurality of pins of the first die site from the plurality of pins of the second die site, while maintaining electrical connection between the first tie bar of the first die site and the first tie bar of the second die site. The first and second die are tested while providing a first power supply source to the first and second die via the first tie bars. After testing, the dies sites are fully singulated to result in packaged IC device.


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