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:
Apr. 06, 2021
Filed:
Sep. 13, 2019
SK Hynix Inc., Icheon-si, KR;
Kang Sub Kwak, Seoul, KR;
SK hynix Inc., Icheon-si, KR;
Abstract
A semiconductor device includes a phase difference detection circuit and an internal circuit. The phase difference detection circuit generates first and second phase difference detection signals by comparing a phase of a phase detection clock signal, generated from a command/address signal in synchronization with a clock signal, with phases of a division clock signal and an internal division clock signal that are generated by dividing a frequency of a data clock signal according to an operation mode. The internal circuit recognizes the phases of the division clock signal and the internal division clock signal according to a logic level combination of the first and second phase difference detection signals.