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.

Date of Patent:
Sep. 28, 2021

Filed:

Jul. 26, 2019
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventors:

Joo Young Lee, Seoul, KR;

Hoe Seung Jung, Seoul, KR;

Assignee:

SK hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/56 (2006.01); G11C 11/4093 (2006.01); G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
G11C 11/5628 (2013.01); G11C 7/1039 (2013.01); G11C 11/4093 (2013.01); G11C 2207/2245 (2013.01); G11C 2211/5648 (2013.01);
Abstract

A data storage device includes a memory cell array comprising a plurality of pages each including K memory cells of which each stores N bits therein, where N and K are positive numbers greater than or equal to 2, wherein each of the pages stores one page data constituted by N subpage data each having K bits; a cache buffer receiving and caching N subpage data of first page data from a controller; and a page buffer sequentially buffering the respective cached N subpage data of the first page data and store the respective buffered N subpage data of the first page data in the memory cell array, wherein when a write operation for Msubpage data of the first page data is completed, the cache buffer receives and caches Msubpage data of second page data from the controller, where M is a positive number less than N.


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