Healing processes in submicron Al interconnects after electromigration failure

Autor: J. A. Prybyla, Alan W. Hunt, S. P. Riege
Rok vydání: 1997
Předmět:
Zdroj: Applied Physics Letters. 70:2541-2543
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.118914
Popis: Investigations of the healing of electromigration-induced open-circuit failed submicron Al(0.5%Cu) interconnects were performed using in situ transmission electron microscopy (TEM). The samples consisted of 4000 A thick Al (0.5%Cu) patterned over a TEM-transparent window into five runners in parallel, with linewidths 0.2, 0.3, 0.5, 0.8, and 1.0 μm. A novel sample design minimized any Joule heating in the runners. Our approach has allowed us to observe voids form, grow, migrate, fail a runner, and heal all with respect to the detailed local microstructure of the runners. In this letter, we focus on our time-resolved observations of the mechanisms of healing.
Databáze: OpenAIRE