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1. WO2020117686 - SEMICONDUCTOR DEVICE PERFORMING ROW HAMMER REFRESH OPERATION


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/US2019/064028 P279644WO01
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
02 December 2019 03 December 2018
Applicant
MICRON TECHNOLOGY, INC.
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing filed or furnished:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
SEMICONDUCTOR DEVICE PERFORMING ROW HAMMER REFRESH OPERATION

5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.
6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     6    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     G11C 11/406 (2006.01)i; G11C 11/408 (2006.01)i; G06F 3/06 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Korean utility models and applications for utility models
Japanese utility models and applications for utility models
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & keywords: refresh, time-division, select, address storing, memory bank, overlap

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
US 8174921 B2 (HO-YOUNG KIM et al.) 08 May 2012 column 5, lines 45-48; claims 1, 3; and figure 3
1,9,15-17
Y
2,18
A
3-8,10-14,19-20
(2)
Y
US 2018-0261268 A1 (SK HYNIX INC.) 13 September 2018 claim 1
2,18
(3)
A
US 2018-0114565 A1 (SK HYNIX INC.) 26 April 2018 paragraphs [0038]-[0078]; and figures 3-7
1-20
(4)
A
US 9251885 B2 (INTEL CORPORATION) 02 February 2016 column 2, line 64 - column 7, line 49: and figures 1-4
1-20
(5)
A
JP 4911510 B2 (ELPIDA MEMORY INC.) 04 April 2012 paragraphs [0034]-[0064]; and figures 1-6
1-20
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
US 8174921 B2
08 May 2012
KR 10-1596281 B1
KR 10-2010-0071220 A
US 2010-0157709 A1
22 February 2016
29 June 2010
24 June 2010
US 2018-0261268 A1
13 September 2018
KR 10-2018-0102267 A
US 10446199 B2
17 September 2018
15 October 2019
US 2018-0114565 A1
26 April 2018
KR 10-2018-0043520 A
US 10062428 B2
30 April 2018
28 August 2018
US 9251885 B2
02 February 2016
US 2014-0189228 A1
03 July 2014
JP 4911510 B2
04 April 2012
JP 2007-188635 A
26 July 2007
Name and mailing address of the ISA/:
Korean Intellectual Property Office
189 Cheongsa-ro, Seo-gu, Daejeon Metropolitan City, 302-701
Republic of Korea
Facsimile No. +82-42-481-8578
Date of the actual completion of the international search:
23 March 2020
Date of mailing of the international search report:
24 March 2020
Authorized officer:
BYUN, Sung Cheal
Telephone No. +82-42-481-8262
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