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An empirical study of fine-pitch assembly faults and their correction

The explosion of SMT and highly-density packages has resulted in more complex and higher density board designs in order to incorporate more features into products while reducing overall package size. This has, in tum, created major challenges for the surface mount manufacturing process, particularly in solder screen printing, component placement, and reflow soldering. Investigation into these areas will contribute to our understanding of the origin of post reflow defects in surface mount assembly and improvement in product quality. The thesis particularly explores empirically the relationship between screen printed paste deposit, the final joint geometry and the fluxing behaviour within the reflowing solder. The thesis also demonstrates the effect of modified screen printing parameters and the lead geometry.

Identiferoai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:360832
Date January 1996
CreatorsTeo, Kiat Choon
PublisherLoughborough University
Source SetsEthos UK
Detected LanguageEnglish
TypeElectronic Thesis or Dissertation
Sourcehttps://dspace.lboro.ac.uk/2134/12598

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