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Probe Module for Wafer-Level Testing of Gigascale Chips With Electrical and Optical I/O Interconnects

[+] Author Affiliations
Hiren Thacker, Oluwafemi Ogunsola, Muhannad Bakir, James Meindl

Georgia Institute of Technology, Atlanta, GA

Paper No. IPACK2005-73302, pp. 1593-1599; 7 pages
  • ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference
  • Advances in Electronic Packaging, Parts A, B, and C
  • San Francisco, California, USA, July 17–22, 2005
  • Conference Sponsors: Heat Transfer Division and Electronic and Photonic Packaging Division
  • ISBN: 0-7918-4200-2 | eISBN: 0-7918-3762-9
  • Copyright © 2005 by ASME


The bandwidth provided by optical interconnects makes them an attractive solution for chip-to-package and chip-to-chip communications. In such systems, chips will have optical I/O interconnects fabricated alongside their conventional electrical counterparts. Virtually no work has been previously reported relating to the testing of such chips at the wafer-level. The requirements for probe hardware needed to achieve this are identified, and probe module configurations based on these requirements are presented. A high-density micro-opto-electro-mechanical-systems (MOEMS)-based probe substrate prototype for interfacing with chips having electrical and optical polymer pillar-based I/Os has been designed, and built using microfabrication techniques. Successful probing of an array of polymer pillar-based optical I/Os is reported.

Copyright © 2005 by ASME



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