Molecular dynamic simulation on mechanism of ultrasonic wire in electronic package

  • Yong Ding
  • , Jang Kyo Kim
  • , Rong Yue Zheng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

The microscopic mechanism of ultrasonic wire bonding is investigated by molecular dynamics simulation on the interfacial contact and adhesion. Considering that the real bonding area is in the state of plane strain, a two-dimensional atomic model is presented. Sutton-Chen potential is adopted for the interaction between gold atoms. Computational results indicate that a strong adhesion generates at the interface after intimate contact between the wire and the bond pad, and the adhesive force should be the mechanism of ultrasonic wire bonding. Combining the real contact area from finite element analysis with the adhesive force from molecular dynamics simulation, the bonding strength of ultrasonic wire bonding is estimated.

Original languageBritish English
Title of host publicationManufacturing Science and Engineering I
Pages2639-2643
Number of pages5
DOIs
StatePublished - 2010
Event2009 International Conference on Manufacturing Science and Engineering, ICMSE 2009 - Zhuhai, China
Duration: 26 Dec 200928 Dec 2009

Publication series

NameAdvanced Materials Research
Volume97-101
ISSN (Print)1022-6680

Conference

Conference2009 International Conference on Manufacturing Science and Engineering, ICMSE 2009
Country/TerritoryChina
CityZhuhai
Period26/12/0928/12/09

Keywords

  • Bonding strength
  • Contact pressure
  • Molecular dynamics
  • Ultrasonic wire bonding

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