Wire bonding of Au-coated Ag wire: Bondwire properties, bondability and IMCs formation

Yi Wei Tseng, Fei-Yi Hung, Truan-Sheng Lui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We recently developed cost effective and highly stable bond wire and more corrosion-resistant than that of conventional Ag base wire. An efficient and environmental-friendly method, featuring a non-cyanide Au plating process was made for Au-coated Ag wire. Therefore, it can serve as feasible Au or PCC wires alternatives for the next generation. ACA wire has several advantages including excellent conductivity. This new Ag wire can meet reliability standards of wire bonding. The proposed ACA wire was studied to ensure compatibility with electrical properties; characterization of IMCs. The results show that electrical properties at high temperature manifest that the ACA wire maintains superior electrical resistance. Interfacial IMC grew Ag2Al and AuAl2 from Ag-Au ball and Al pad after aging for 500h at 175 degrees C. ACA wire formed by the non-cyanide plating method has wide application prospects in IC packaging processes.

Original languageEnglish
Title of host publication20th European Microelectronics and Packaging Conference and Exhibition
Subtitle of host publicationEnabling Technologies for a Better Life and Future, EMPC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9780956808622
Publication statusPublished - 2016 Jan 25
Event20th European Microelectronics and Packaging Conference and Exhibition, EMPC 2015 - Friedrichshafen, Germany
Duration: 2015 Sep 142015 Sep 16

Publication series

Name20th European Microelectronics and Packaging Conference and Exhibition: Enabling Technologies for a Better Life and Future, EMPC 2015

Other

Other20th European Microelectronics and Packaging Conference and Exhibition, EMPC 2015
CountryGermany
CityFriedrichshafen
Period15-09-1415-09-16

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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