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:
May. 23, 2017
Filed:
Sep. 23, 2015
Applicant:
Aptos Technology Inc., Hsinchu, TW;
Inventor:
En-min Jow, Taipei, TW;
Assignee:
APTOS TECHNOLOGY INC., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 23/495 (2006.01); H01L 21/48 (2006.01); H01L 21/56 (2006.01); H01L 23/31 (2006.01); H01L 23/00 (2006.01);
U.S. Cl.
CPC ...
H01L 23/49548 (2013.01); H01L 21/4825 (2013.01); H01L 21/4832 (2013.01); H01L 21/4842 (2013.01); H01L 21/565 (2013.01); H01L 23/3114 (2013.01); H01L 23/4952 (2013.01); H01L 23/49503 (2013.01); H01L 23/49513 (2013.01); H01L 23/49541 (2013.01); H01L 23/49582 (2013.01); H01L 23/3107 (2013.01); H01L 24/48 (2013.01); H01L 2224/48247 (2013.01); H01L 2224/73257 (2013.01); H01L 2224/73265 (2013.01); H01L 2224/85439 (2013.01); H01L 2224/85444 (2013.01); H01L 2224/85464 (2013.01); H01L 2924/00014 (2013.01); H01L 2924/01046 (2013.01); H01L 2924/01079 (2013.01); H01L 2924/14 (2013.01); H01L 2924/181 (2013.01); H01L 2924/18165 (2013.01);
Abstract
A method for fabricating a quad flat non-leaded (QFN) package includes: forming die pads and bump solder pads by pressing a metal plate, wherein each of the die pads and the bump solder pads has at least a cross-sectional area greater than another cross-sectional area located underneath along its vertical thickness dimension, thereby enabling the die pads and the solder pads to be securely embedded in an encapsulant.