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International application No. Applicant's or agent's file reference
PCT/US2019/068634 097850 (00071OWO)
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
26 December 2019 26 December 2018
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)).
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)).
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:
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
The figure of the drawings to be published with the abstract is Figure No.     1    
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.
none of the figures is to be published with the abstract.


     G05F 1/565 (2006.01)i; H03M 1/12 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


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:power delivery, chip, node, load, switch


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 9413252 B2 (SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) LTD.) 09 August 2016 Column 4, line 15 - column 7, line 6; claim 1; and figure 3
US 9373571 B2 (TEXAS INSTRUMENTS INCORPORATED) 21 June 2016 Column 5, lines 30-58; claim 1; and figure 2
KR 10-2012-0110059 A (FAIRCHILD SEMICONDUCTOR CORPORATION) 09 October 2012 Paragraphs [0015]-[0037], [0050]-[0054]; and figures 1, 3
KR 10-2015-0069869 A (SAMSUNG ELECTRONICS CO., LTD.) 24 June 2015 Paragraphs [0027]-[0046]; and figures 1, 3
US 2009-0174262 A1 (GARY D. MARTIN et al.) 09 July 2009 Paragraphs [0208]-[0212]; and figure 25
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
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)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
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
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
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


Patent document cited in search report Publication date
Patent family member(s) Publication date
US 9413252 B2
09 August 2016
CN 103166450 A
CN 103166450 B
TW I527354 B
TW 201513547 A
US 9722496 B2
US 2014-0307485 A1
US 2016-0268910 A1
19 June 2013
26 August 2015
21 March 2016
01 April 2015
01 August 2017
16 October 2014
15 September 2016
US 9373571 B2
21 June 2016
CN 105283956 B
CN 105283956 A
EP 3005417 A1
US 2016-0064361 A1
US 2016-0064352 A1
US 9214415 B2
US 9355991 B2
US 9653388 B2
US 2014-0306332 A1
US 2016-0064313 A1
WO 2014-169209 A1
28 December 2018
27 January 2016
13 April 2016
03 March 2016
03 March 2016
15 December 2015
31 May 2016
16 May 2017
16 October 2014
03 March 2016
16 October 2014
KR 10-2012-0110059 A
09 October 2012
CN 102710119 B
CN 102710119 A
TW I521836 B
TW 201320562 A
US 8633680 B2
US 2012-0249094 A1
KR 10-1960404 B1
14 September 2016
03 October 2012
11 February 2016
16 May 2013
21 January 2014
04 October 2012
20 March 2019
KR 10-2015-0069869 A
24 June 2015
US 9590496 B2
US 2015-0171743 A1
07 March 2017
18 June 2015
US 2009-0174262 A1
09 July 2009
US 2011-0221408 A1
US 7923974 B2
US 8344712 B2
15 September 2011
12 April 2011
01 January 2013
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:
29 April 2020
Date of mailing of the international search report:
29 April 2020
Authorized officer:
KANG, Min Jeong
Telephone No. +82-42-481-8131
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