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:
Jun. 28, 2022
Filed:
Jan. 14, 2021
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventor:
Sang Hwan Kim, Icheon-si, KR;
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/12 (2006.01); G11C 29/38 (2006.01); G11C 29/14 (2006.01); G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
G11C 29/1201 (2013.01); G11C 29/14 (2013.01); G11C 29/38 (2013.01); G11C 16/0483 (2013.01);
Abstract
A memory device includes a first pad, a second pad, and a double data rate (DDR) test controller. The first pad may receive a write enable signal. The second pad may receive a data strobe signal. The DDR test controller is connected to the first pad and the second pad and outputs an internal write enable signal and an internal data strobe signal. The DDR test controller generates the internal data strobe signal based on the write enable signal received through the first pad, in at least a portion of a DDR test operation of the memory device.