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. 07, 2023
Filed:
Jun. 16, 2020
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventor:
Ho Don Jung, Seoul, KR;
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/01 (2006.01); H03K 19/003 (2006.01); H03K 19/0185 (2006.01); H03K 3/356 (2006.01);
U.S. Cl.
CPC ...
H03K 3/01 (2013.01); H03K 3/356113 (2013.01); H03K 19/00315 (2013.01); H03K 19/018521 (2013.01);
Abstract
An input/output (I/O) circuit may be provided. The I/O circuit may include an input control circuit and an output control circuit. The input control circuit may be configured to apply a stress to a transmission path based on an input signal while in a test mode and buffer the input signal using a drivability changed by the stress applied to the transmission path to generate first and second transmission signals while in a normal mode after the test mode. The output control circuit may be configured to drive and output an output signal according to the first and second transmission signals based on a test mode signal.