• DocumentCode
    2603270
  • Title

    Purple Plague and Gold Purity

  • Author

    Horsting, C.W.

  • Author_Institution
    RCA Corporation, Somerville, New Jersey
  • fYear
    1972
  • fDate
    26390
  • Firstpage
    155
  • Lastpage
    158
  • Abstract
    The failure of aluminum-to-gold ultrasonic bonds, after storage at elevated temperature, is often accompanied by the presence of "purple plague". However, this purple intermetallic phase can also be present in bonds that remain strong after the same treatment. Bond failure has been connected with the presence of impurities in the gold and a failure mechanism is proposed.
  • Keywords
    Aluminum; Bonding forces; Circuit testing; Gold; Integrated circuit packaging; Intermetallic; Life testing; Nitrogen; Temperature; Wire;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Reliability Physics Symposium, 1972. 10th Annual
  • Conference_Location
    Las Vegas, NV, USA
  • ISSN
    0735-0791
  • Type

    conf

  • DOI
    10.1109/IRPS.1972.362544
  • Filename
    4207916
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2603270