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:
Mar. 31, 2020
Filed:
Aug. 13, 2018
United Microelectronics Corp., Hsin-Chu, TW;
Shu-Wei Yeh, Taichung, TW;
Chang-Hung Chen, Tainan, TW;
UNITED MICROELECTRONICS CORP., Hsin-Chu, TW;
Abstract
The present invention provides a layout pattern of a static random access memory (SRAM), comprising at least one substrate, two SRAM units on the substrate, respectively located in a first region and a second region which is adjacent to the first region. Each of the SRAM units includes a first inverter coupled to a second inverter and configured to form a latching circuit, the first inverter includes a first pull-up transistor (PU) and a first pull-down transistor (PD), the second inverter includes a second pull-up transistor (PU) and a second pull-down transistor (PD). A dummy layer crossing the first a region and the second region, and between the PDin the first region and the PDin the second region, and a contact structure on the dummy layer, electrically connected to a voltage source Vss.