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:
Sep. 04, 2007
Filed:
Feb. 17, 2004
Applicants:
Tai-chun Huang, Hsinchu, TW;
Chih-hsiang Yao, Taipei, TW;
Kuan-shou Chi, Hsinchu, TW;
Inventors:
Assignee:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/544 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of forming an improved seal ring structure is described. A continuous metal seal ring is formed along a perimeter of a die wherein the metal seal ring is parallel to the edges of the die and sloped at the corner of the die so as not to have a sharp corner and wherein the metal seal ring has a first width at the corners and a second width along the edges wherein the first width is wider than the second width.