Skip to main navigation Skip to search Skip to main content

Silicon-to-silicon wafer bonding with gold as intermediate layer

  • S. M.L. Nai
  • , J. Wei*
  • , P. C. Lim
  • , C. K. Wong
  • *Corresponding author for this work
  • Agency for Science, Technology and Research, Singapore

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

Abstract

In this study, eutectic bonding process between two 4-inch, p-type silicon wafers has been successfully achieved. A gold pattern of varying height is firstly deposited on one silicon wafer prior to bonding. To further understand the eutectic bonding process, the effects of bonding temperature and gold height are investigated. When studying the effect of bonding temperature, the gold height is kept constant at 1.00 μm while the bonding temperature is varied from 375 to 475°C. It is found that bonding temperature of 400°C yielded the most satisfactory results, in terms of bonding efficiency, bond strength and interfacial integrity. Moreover, when studying the effect of gold height, the bonding temperature is kept at the optimized temperature of 400°C, with gold height varying from 0.20 to 1.40 μm. It is found that gold height of 1.00 μm yielded the best results.

Original languageEnglish
Title of host publicationProceedings of 5th Electronics Packaging Technology Conference, EPTC 2003
EditorsMahadevan K. Iyer, Yew Cheong Mui, Kok Chuan Toh
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages119-124
Number of pages6
ISBN (Electronic)0780382056, 9780780382053
DOIs
StatePublished - 2003
Externally publishedYes
Event5th Electronics Packaging Technology Conference, EPTC 2003 - Singapore, Singapore
Duration: 10 Dec 200312 Dec 2003

Publication series

NameProceedings of 5th Electronics Packaging Technology Conference, EPTC 2003

Conference

Conference5th Electronics Packaging Technology Conference, EPTC 2003
Country/TerritorySingapore
CitySingapore
Period10/12/0312/12/03

Fingerprint

Dive into the research topics of 'Silicon-to-silicon wafer bonding with gold as intermediate layer'. Together they form a unique fingerprint.

Cite this