Investigation of Fretting Corrosion at Dissimilar Metal Interfaces in Socketed IC Device Applications

Mottine, J. J.; Reagor, B. T.

doi:10.1109/tchmt.1984.1136332

Cited by 20 publications

(2 citation statements)

References 6 publications

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“…We must now maintain low and stable contact resistance along every pathway our signal is sent. Small changes in resistance have been observed in both intermittent field failures [9] as well as in failures induced during laboratory testing.…”

Section: Impacts On Reliabilitymentioning

confidence: 99%

“…Also associated with the increased use of tin has been both a rise in fretting corrosion at the IC pin/socket ioterface and subsequent similar problems with the use of dissimilar metal interfaces such as tin-plated IC's with gold-plated sockets. [9,10] Figure 3 shows an example of an interface where dissimilar metals have been used. In addition to fretting corrosion at this interface, gross metal transfer from the soft contact material (tin) to the hard contact material (gold) can occur with a good potential for device walk-out.…”

Section: Impacts On Reliabilitymentioning

confidence: 99%

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Interconnection reliability

Reagor¹

38th Electronics Components Conference 1988., Proceedings.

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Dr. B a r b a r a T. R e a g o r Bell C o m m u n i c a t i o n s R e s e a r c h , Inc. 331 Newman S p r i n g s R o a d R e d B a n k , N. J. 07701 ABSTRACTThe telecommunications industry has evolved from electromechanical analog systems to the current world of the digital-fiber/electronic switch. As technology continues to advance, we are even beginning to catch a glimpse of the electronic/photonic world of tomorrow. In all these systems, interconnection reliability is key to long-term operation. In the past, the connections in our telecommunications networks were hard-wired and the systems were large in size. Today, these systems are becoming smaller, more compact, and essentially modularized. As we multiplex more and more of our signals onto a single wire o r fiber, the stability at every interconnection point becomes increasingly critical for longterm reliable operation. Here we present a summary of some of the key features that can impact interconnection reliability. In particular, we will address how manufacturing contamination, materials selection, lubrication, and environmental protection impact all levels of interconnection. The information will be documented through discussion of actual field failures.

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Section: Impacts On Reliabilitymentioning

confidence: 99%

Section: Impacts On Reliabilitymentioning

confidence: 99%

Interconnection reliability

Reagor¹

38th Electronics Components Conference 1988., Proceedings.

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Evaluation of contact resistance characteristics for tin plated connector contacts in accelerated degradation test

Yasuda

Aoki²,

Imori

1987

Electron Comm Jpn Pt II

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To find applicability of tin/tin contacts to connectors used in communication systems requiring high reliability electrical connection, damp heat cycle tests have been carried out and the accelerated degradation characteristics of the tin/tin contact have been compared with those of the gold/gold and gold/tin contacts. The results are as follows. (1) The contact resistance of the tin/tin contact is close to that of the gold/gold contact and it was found to be a reliable contact in high reliability connectors for the first 20 insertions. (2) In the tin/tin contact, the worn‐off area is smaller and the apparent contact area is larger than in the gold/tin contact. These factors contribute to the stability of the contact resistance and are basis for contact resistance in the tin/tin contact is more stable than in the gold/tin contact. From these results it is found that the tin/tin contact can be used in high reliability connectors within the range of a few insertions.

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The fretting wear of electrodeposited contact coatings

Souter

Staunton²

1988

Transactions of the IMF

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Investigation of Fretting Corrosion at Dissimilar Metal Interfaces in Socketed IC Device Applications

Cited by 20 publications

References 6 publications

Interconnection reliability

Interconnection reliability

Evaluation of contact resistance characteristics for tin plated connector contacts in accelerated degradation test

The fretting wear of electrodeposited contact coatings

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