• DocumentCode
    2615737
  • Title

    Thin-Film Cracking and Wire Ball Shear in Plastic Dips Due to Temperature Cycle and Thermal Shock

  • Author

    Shirley, C.G. ; Blish, R.C.

  • Author_Institution
    Intel Corporation
  • fYear
    1987
  • fDate
    31868
  • Firstpage
    238
  • Lastpage
    249
  • Abstract
    A test chip was used to compare thin film cracking of various circuit layouts at various positions on the chip, and to study wire ball shear. Slotted aluminum busses reduced thin film cracking in die corners. Thin film cracking and wire ball shear failure rates have remarkably different dependence on shock versus cycle and on lead frame material.
  • Keywords
    Aluminum; Circuit testing; Electric shock; Packaging; Passivation; Plastic films; Resistors; Temperature; Thin film circuits; Wire;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Reliability Physics Symposium, 1987. 25th Annual
  • Conference_Location
    San Diego, CA, USA
  • ISSN
    0735-0791
  • Type

    conf

  • DOI
    10.1109/IRPS.1987.362185
  • Filename
    4208719