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:
Dec. 14, 2021
Filed:
Jan. 02, 2019
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventors:
Sang Hyun Ku, Gyeonggi-do, KR;
Sung Soo Chi, Gyeonggi-do, KR;
Assignee:
SK hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01); G11C 5/02 (2006.01); G11C 29/56 (2006.01); G11C 29/02 (2006.01); H03B 5/12 (2006.01);
U.S. Cl.
CPC ...
G11C 7/1063 (2013.01); G11C 5/02 (2013.01); G11C 29/023 (2013.01); G11C 29/028 (2013.01); G11C 29/56012 (2013.01); H03B 5/1271 (2013.01); G11C 2207/2254 (2013.01);
Abstract
A semiconductor apparatus includes a first chip that generates a first oscillator signal in response to a detection enable signal and activates a ZQ circuit in response to a ZQ enable signal, and a second chip generates the ZQ enable signal by comparing frequencies of the first oscillator signal and a second oscillator signal with each other in response to the detection enable signal.