STUDENT PAPER: The Failure Mechanism study of Single Metal Contact Open Induced Scan Chain Failure in 90nm node VLSI Using Electron Beam Absorb Current (EBAC) Technology.

Wednesday, November 8, 2017
Dr. Chao-Cheng Ting , National Chiao-Tung University, Hsinchu, Taiwan
Ya-Chi Liu , Optmic Lab, Walnut, CA
Mr. Hsuan-Hsien Chen , Faraday Technology Corp., Hsin Chu, Taiwan
Mr. Chung-Ching Tsai , Faraday Technology Corp., Hsin Chu, Taiwan
Liwen Shih , University of Houston-Clear Lake, Houston, TX

Summary:

This study used EBAC to locate the single metal contact open defect which caused the scan chain failure. The failure is affected by the residual of silicate photo-resist polymer during the fabrication of metal via 4. In this research, we demonstrated a successful case study and yield enhancement of using EBAC which is a robust methodology in defect localization for complex VLSI in 90nm technology node.