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:
Jul. 09, 2024
Filed:
Sep. 10, 2021
Applicant:
Changxin Memory Technologies, Inc., Hefei, CN;
Inventor:
Qian Xu, Hefei, CN;
Assignee:
CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/02 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0262 (2013.01);
Abstract
Provided is an electrostatic discharge protection device, including: a darlington structure formed in a substrate, and a diode string formed in the substrate and including a plurality of diodes connected in series. A first end of the darlington structure is connected to a first voltage, and a second end of the darlington structure is connected to a second voltage. An anode of the diode string is connected to a third end of the darlington structure. A cathode of the diode string is connected to the second voltage.