Patent · US Active

Double seal ring

US8530997B1 · kind B1 · utility

31Cited by

3References

20Claims

0Family size

Assignee

TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD. · TW

Inventors

Ming-Hui Yang · Chandler, US
Hsin Wei Chiu · Hsinchu, TW

Key dates

Filing date	Jul 31, 2012
Grant date	Sep 10, 2013
Priority date	—
Expiry date	Jul 31, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2924/0002
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

A double seal ring for an integrated circuit includes a first seal ring with a first opening. The first seal ring surrounds the integrated circuit. A second seal ring with a second opening surrounds the first seal ring. Two connectors connect the first opening of the first seal ring and the second opening of the second seal ring. The first seal ring, the second seal ring, and the two connectors form a closed loop.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.