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:
Jun. 15, 2021
Filed:
Aug. 21, 2019
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
An overlay mark includes a first feature extending in an X-direction, wherein the first feature is a first distance from a substrate. The overlay mark further includes a second feature extending in a Y-direction perpendicular to the X-direction, wherein the second feature is a second distance from the substrate, and the second distance is different from the first distance. The overlay mark further includes a third feature extending in the X-direction and the Y-direction, wherein the third feature is a third distance from the substrate, and the third distance is different from the first distance and the second distance.