Observations of Structural Transition of Tin Plated Fretting Contacts Using FIB-SEM

T, Ito; Ogihara, Shigeru; Hattori, Yasuhiro

doi:10.1587/transele.e94.c.1350

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…As shown in Figure 3(a), the mechanical balance of the connector is achieved under the action of three forces. According to mechanical analysis, the relationship between the contact pressure and the mating force of the jack due to elastic deformation could be obtained by equation (1).…”

Section: Influence Of Ambient Temperature On Contact Resistancementioning

confidence: 99%

“…According to equation ( 1), the variation of contact pressure is observed by the mating force curve due to the contact pressure is difficult to be obtained. Also, the contact pressure affects the variation of contact resistance, and the calculation of contact resistance is shown in equation (2).…”

Section: Influence Of Ambient Temperature On Contact Resistancementioning

confidence: 99%

“…However, a large number of data showed that the contact failure of electrical connectors was the main failure mode in the failure of electronic equipment, accounting for about 45.1% of the total failure. 1,2 The electrical connector had been recognized as one of the four components with poor reliability. 3 Therefore, it was necessary to detect the evolution of contact performance of electrical connectors during the service process and predict the service life of electrical connectors.…”

Section: Introductionmentioning

confidence: 99%

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Evolution of contact performance of industry electrical connector based on reliability accelerated testing

Han

Pan

et al. 2021

Advances in Mechanical Engineering

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The evolution of contact performance of electrical connectors, as an expression of service performance, played a significant role in various electronic equipment or system. However, very few methods had been used to detect the evolution of contact performance effectively and accurately. Hence, in this research, reliability accelerated testing was conducted to investigate the evolution of contact performance of electrical connectors. To detect the evolution of contact performance, contact resistance and friction and wear of the connector were measured using a DC resistance tester and an electron microscope respectively. Also, the effect of external conditions such as ambient temperature, mating speed, mating cycles was statistically investigated, and evolution curves were developed for contact resistance and abrasion loss. The obtained results revealed the temperature and mating speed affected the contact performance of electrical connectors. The increment of temperature reduced the shear strength of material and increased the thickness of oxide film. Increased mating speed greatly increased the probability of fracture of micro-protrusion due to collision, the wear form of connector had realized transition from low-speed adhesive wear to high-speed peeling wear. In addition, when the connector was mated about 3000 cycles, the contact performance of the connector would be greatly decreased.

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Section: Influence Of Ambient Temperature On Contact Resistancementioning

confidence: 99%

Section: Influence Of Ambient Temperature On Contact Resistancementioning

confidence: 99%