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International application No. Applicant's or agent's file reference
PCT/US2020/016773 180506PCT
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
05 February 2020 28 March 2019
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.     2    
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.


     H01L 23/50 (2006.01)i; H01L 23/538 (2006.01)i; H01L 23/525 (2006.01)i; H01L 23/528 (2006.01)i; H01L 25/065 (2006.01)i; H01L 23/31 (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: voltage regulator, coil, redistribution, package


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2016-0090294 A1 (INFINEON TECHNOLOGIES AG) 31 March 2016 paragraphs [0038]-[0065] and figure 5B
US 2015-0371764 A1 (INTERNATIONAL BUSINESS MACHINES CORPORATION) 24 December 2015 paragraphs [0025]-[0030], [0082] and figures 1-3A
US 2015-0235952 A1 (QUALCOMM INCORPORATED) 20 August 2015 paragraphs [0040]-[0042] and figure 4
US 2019-0088595 A1 (TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.) 21 March 2019 the entire document
US 2019-0067253 A1 (MICRON TECHNOLOGY, INC.) 28 February 2019 the entire document
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 2016-0090294 A1
31 March 2016
CN 105460884 B
CN 105460884 A
DE 102015116053 A1
US 9718678 B2
19 October 2018
06 April 2016
31 March 2016
01 August 2017
US 2015-0371764 A1
24 December 2015
US 2015-0235952 A1
20 August 2015
CN 102934227 B
CN 102934227 A
EP 2589079 B1
EP 2589079 A1
JP 5854338 B2
JP 6517131 B2
JP 2016-029744 A
JP 2013-531385 A
KR 10-1614132 B1
KR 10-2013-0047734 A
US 2011-0317387 A1
US 9048112 B2
US 9349692 B2
WO 2012-003169 A1
09 December 2015
13 February 2013
28 March 2018
08 May 2013
09 February 2016
22 May 2019
03 March 2016
01 August 2013
20 April 2016
08 May 2013
29 December 2011
02 June 2015
24 May 2016
05 January 2012
US 2019-0088595 A1
21 March 2019
CN 107026093 A
DE 102016118802 A1
KR 10-2017-0090985 A
KR 10-1965035 B1
TW 201727845 A
TW I618203 B
US 2017-0373004 A1
US 2017-0221819 A1
US 10163780 B2
US 9761522 B2
08 August 2017
03 August 2017
08 August 2017
02 April 2019
01 August 2017
11 March 2018
28 December 2017
03 August 2017
25 December 2018
12 September 2017
US 2019-0067253 A1
28 February 2019
CN 110494976 A
KR 10-2019-0119170 A
TW 201921615 A
US 10217726 B1
US 10177120 B1
US 10446527 B2
WO 2019-046019 A1
22 November 2019
21 October 2019
01 June 2019
26 February 2019
08 January 2019
15 October 2019
07 March 2019
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 May 2020
Date of mailing of the international search report:
29 May 2020
Authorized officer:
PARK, Hye Lyun
Telephone No. +82-42-481-3463
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