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An experimental study was conducted to determine the effect of rework on the quality and reliability of surface mount solder interconnects. The test vehicle included thin small outline packages (TSOPs) and 2512 resistors assembled onto circuit cards with Sn3.0Ag0.5Cu and Sn63Pb37 solders. The rework process entailed the removal and replacement of the TSOPs and resistors. Reworked assemblies were then subjected to a temperature cycling test. Test results indicated that rework did not degrade the reliability of the TSOP solder attachments, but it decreased the thermal fatigue life of 2512 resistors down by 80% due to the decreased and uneven solder joint heights created by the hand-soldered rework process. Solder interconnect material changes caused by the rework process were not observed to be a significant factor in reliability.
Published in:
Device and Materials Reliability, IEEE Transactions on
(Volume:12
,
Issue:
2
)
Date of Publication: June 2012
- Page(s):
- 510 - 519
- ISSN :
- 1530-4388
- INSPEC Accession Number:
- 12769156
- Digital Object Identifier :
- 10.1109/TDMR.2012.2191786
- Product Type:
- Journals & Magazines
- Date of Publication :
- 23 March 2012
- Date of Current Version :
- 01 June 2012
- Issue Date :
- June 2012
- Sponsored by :
- IEEE Electron Devices Society
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