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. 11, 2017
Filed:
May. 12, 2016
SK Hynix Inc., Gyeonggi-do, KR;
Hyun-Sung Lee, Gyeonggi-do, KR;
Chun-Seok Jeong, Gyeonggi-do, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
Provided is a stacked memory device including a base die and a plurality of core dies. The base die may include: a weak cell address storage unit for storing weak cell addresses; a serialization unit for selecting at least one of the weak cell addresses as a target weak cell address, converting the selected target weak cell address into a serial weak cell address, and outputting a strobe signal synchronized with the serial weak cell address; a deserialization unit for storing the serial weak cell address based on the strobe signal, and converting the stored address into a parallel weak cell address based on a refresh end signal; and a refresh control unit for selecting the parallel weak cell address or a refresh address generated based on a refresh signal, and outputting a target address.