Carrier techniques for thin wafer processing

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

  • C. Landesberger - , Fraunhofer Institute for Reliability and Microintegration (Author)
  • S. Scherbaum - , Fraunhofer Institute for Reliability and Microintegration (Author)
  • K. Bock - , Chair of Electronic Packaging Technology, Fraunhofer Institute for Reliability and Microintegration (Author)

Abstract

Three different types of carrier techniques have been investigated and developed: Thermal release tapes, solvable thermoplastic glue layer and mobile electrostatic carrier. These carriers were applied for manufacture of ultra-thin RFID chips, 12 μm thin CMOS image sensors and to a new process sequence that enables the formation of solder balls at the front side of an already thinned device wafer. Technical capabilities of different carrier techniques are compared with respect to allowed temperature range, type of bonding and de-bonding mechanism and their compatibility with typical wafer fab processes. Mobile electrostatic carriers were used to perform solder ball bumping at 55 μm thin silicon wafers. The process sequence demonstrates the capability of electrostatic carrier technology to enable thin wafer processing at elevated temperatures.

Details

Original languageEnglish
Title of host publication2007 International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2007
PublisherCS MANTECH
Pages33-36
Number of pages4
ISBN (print)1893580091, 9781893580091
Publication statusPublished - 2007
Peer-reviewedYes

Publication series

Series2007 International Conference on Compound Semiconductor Manufacturing Technology

Conference

Title22nd International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2007
Duration14 - 17 May 2007
CityAustin, TX
CountryUnited States of America

External IDs

ORCID /0000-0002-0757-3325/work/139064965

Keywords

Keywords

  • Mobile electrostatic carriers, Reversible bonding, Thin wafer processing, Wafer handling