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:
Oct. 03, 2023
Filed:
Mar. 23, 2022
United Microelectronics Corp., Hsinchu, TW;
Tsong-Lin Shen, Kaohsiung, TW;
Tsung-Yu Yang, Chiayi County, TW;
United Microelectronics Corp., Hsinchu, TW;
Abstract
A chip crack detection structure, including a substrate, a first chip crack detection ring, a second chip crack detection ring, and a seal ring, is provided. The first chip crack detection ring includes multiple first conductive layers stacked over the substrate and electrically connected to each other. A bottom surface of a lowermost conductive layer among the first conductive layers is not in contact with any plug. The second chip crack detection ring surrounds the first chip crack detection ring. The second chip crack detection ring includes multiple second conductive layers stacked over the substrate and electrically connected to each other. A bottom surface of a lowermost conductive layer among the second conductive layers is not in contact with any plug. The seal ring surrounds the second chip crack detection ring. The seal ring includes multiple third conductive layers stacked over the substrate and electrically connected to each other.