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:
Feb. 04, 2020

Filed:

Feb. 06, 2018
Applicant:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;

Inventors:

Wei-Hsiang Huang, Hsinchu, TW;

Chung-Chuan Tseng, Hsinchu, TW;

Chia-Wei Liu, Zhubei, TW;

Li Hsin Chu, New Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/78 (2006.01); H01L 21/308 (2006.01); H01L 21/68 (2006.01); H01L 23/544 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
H01L 21/78 (2013.01); H01L 21/308 (2013.01); H01L 21/6836 (2013.01); H01L 23/544 (2013.01);
Abstract

A wafer includes a first set of dies and a second set of dies. The wafer further includes a scribe line separating the first set of dies from the second set of dies, wherein the scribe line has a first width. The wafer further includes a plurality of trenches between adjacent dies of the first set of dies and connected to the scribe line, wherein the plurality of trenches has a second width less than the first width, and a depth of each trench of the plurality of trenches is less than a thickness of the wafer.


Find Patent Forward Citations

Loading…