5.1
22nm BEOL TDDB Defect Localization and Root Cause Analysis

Tuesday, November 5, 2013: 9:30 AM
Meeting Room 230A (San Jose McEnery Convention Center)
Mr. Terence Kane , IBM, Hopewell Junction, NY
Yunyu Wang , IBM, Hopewell Junction, NY

Summary:

22nm node BEOL technologies and below require Copper Manganese liner additions or selective CVD Cobalt Capping with PVD Ta(N) and CVD Cobalt Liners for requisite electronmigration performance. Subtle TDDB defects associated with these liner metallization schemes employing ultra low k BEOL dielectric films can shrink/cause voids under incident energetic electron or ion beams.