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:
Feb. 19, 2019
Filed:
May. 05, 2017
Macronix International Co., Ltd., Hsinchu, TW;
Tzu-Yi Hung, Hsinchu, TW;
Hsin-Liang Chen, Hsinchu, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
Methods, circuits, devices, and systems for high voltage electrostatic discharge (ESD) protection are provided. An example ESD protection device includes: a base well of a first dopant type on a substrate, a first well of the first dopant type in the base well, a second well of a second dopant type in the base well, a first highly doped region of the first dopant type and a second highly doped region of the second dopant type in the first well, a third highly doped region of the second dopant type in the second well, and a fourth highly doped region of the first dopant type in the third highly doped region. The first highly doped region and the second highly doped region are coupled to a first voltage terminal, and the third highly doped region and the fourth highly doped region are coupled to a second voltage terminal.