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Title:
APPARATUS AND METHOD FOR TESTING CHANGE IN RESISTANCE VALUE OF SOLDER JOINT
Document Type and Number:
WIPO Patent Application WO/2023/040221
Kind Code:
A1
Abstract:
An apparatus and method for testing change in resistance value of a solder joint, relating to the technical field of solder joint testing. In the apparatus, a first conductive line (111) is connected to a first node (121); a second conductive line (112) is connected to a second node (122); a plurality of third resistors (133) are connected in parallel between the first node (121) and a third node (123), or, the first node (121) is directly connected to the third node (123); the second node (122) and the third node (123) are both connected to a solder joint to be tested (134); one end of a first resistor (131) is connected to the first node (121), and the other end of the first resistor (131) is connected to a fourth node (124); one end of a second resistor (132) is connected to the second node (122), and the other end of the second resistor (132) is connected to the fourth node (124); an ammeter (140) is configured to measure a current flowing through the first conductive line (111); a voltmeter (150) is connected between the third node (123) and the fourth node (124).

Inventors:
WU XIAOPENG (CN)
Application Number:
PCT/CN2022/081046
Publication Date:
March 23, 2023
Filing Date:
March 15, 2022
Export Citation:
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Assignee:
SANECHIPS TECH CO LTD (CN)
International Classes:
G01R27/08
Domestic Patent References:
WO2007063955A12007-06-07
Foreign References:
CN108490262A2018-09-04
CN108169568A2018-06-15
JPH01205546A1989-08-17
Other References:
WEN, QIANG: "Study of Microstructural Evolution and Electrical Monitoring of the Defects in Mixed Solder Joints", INFORMATION & TECHNOLOGY, CHINA DOCTORAL DISSERTATIONS/MASTER'S THESES FULL-TEXT DATABASE (MASTER), no. 06, 15 June 2018 (2018-06-15), ISSN: 1674-0246
ZHAO, MINGFU ET AL.: "A 2.45GHz Power Amplifier for WLAN", NCMMW2009 PROCEEDINGS (THE SECOND VOLUME), 31 May 2009 (2009-05-31)
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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