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1. WO2021060989 - SYSTEM AND BIO-IMPLANTABLE CHIP FOR MEASURING ELECTRICAL RESISTANCE FOR INTEGRITY MONITORING, AND MANUFACTURING METHOD


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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/NL2020/050602 78799PC
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
28 September 2020 27 September 2019
Applicant
TECHNISCHE UNIVERSITEIT DELFT
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:
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:
SYSTEM AND BIO-IMPLANTABLE CHIP FOR MEASURING ELECTRICAL RESISTANCE FOR INTEGRITY MONITORING, AND MANUFACTURING METHOD

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.

The present invention relates generally to a system, a sensor, a manufacturing method and a bio-implantable chip for measuring electrical resistance for integrity monitoring of bio-implantable chips. In a first aspect, there is provided a resistance measurement system based on a node, comprising a stack of layers, a switching unit arranged for connecting and disconnecting a charge holding capacitor of said node; a voltage sensor arranged for determining a voltage level of said node: and a control unit, arranged for controlling said switching unit to switch said node between two states and being arranged for determining a discharge time of a discharge state, wherein said discharge time is derived from counting clock pulses between switching said node from said first to said second state and said voltage sensor determining said node to drop below a predetermined discharge voltage level; a calculation unit for calculating said electrical resistance.


6. Drawings
a.
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.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     G01N 27/04 (2006.01)i; G01N 27/22 (2006.01)i; G01R 27/02 (2006.01)i; H01L 21/66 (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):
     G01R; H01L; G01N
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
EPO-Internal, WPI Data

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 2018174505 A1 (MANDLIK PRASHANT [US] ET AL) 21 June 2018 (2018-06-21)
1-6,8-10,15
Y
abstract
7,11-14
figures 1,8,9,10
paragraphs [0030] - [0034], [0047] - [0067]
(2)
Y
US 2009107220 A1 (CHEN FEN [US] ET AL) 30 April 2009 (2009-04-30)
12,13
abstract
paragraph [0017]
(3)
Y
MAZZA FEDERICO ET AL, "Integrated Devices for Micro-Package Integrity Monitoring in mm-Scale Neural Implants", 2018 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), IEEE,17 October 2018 (2018-10-17), page 1-4,
XP033483229
7,11,14
abstract
figure 2
page 4, column 2, lines 24-28
(4)
A
US 2015160148 A1 (STANLEY JAMES GREGORY [US]) 11 June 2015 (2015-06-11)
1-15
abstract
paragraphs [0029] - [0038]
*
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 2018174505 A1
21 June 2018
NONE
US 2009107220 A1
30 April 2009
NONE
US 2015160148 A1
11 June 2015
US 2015160148 A1
WO 2015084997 A1
11 June 2015
11 June 2015
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Netherlands
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
03 December 2020
Date of mailing of the international search report:
17 December 2020
Authorized officer:
Ruchaud, Nicolas
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