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:
May. 03, 2022
Filed:
Dec. 10, 2019
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventors:
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/11575 (2017.01); H01L 27/11582 (2017.01); H01L 23/528 (2006.01); H01L 29/417 (2006.01); G11C 16/08 (2006.01); G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
H01L 27/11575 (2013.01); H01L 23/528 (2013.01); H01L 27/11582 (2013.01); H01L 29/41741 (2013.01); G11C 16/0483 (2013.01); G11C 16/08 (2013.01);
Abstract
A semiconductor memory device includes a memory cell array disposed on a source plate; a discharge plate disposed on a bottom surface of the source plate; a source line discharge circuit disposed on a substrate below the discharge plate, and electrically coupling the discharge plate to a ground node in response to a source line discharge control signal; and a discharge path provided between the discharge plate and the source line discharge circuit.