Simulation of the influence of TiAl 3 layers on the thermal-electrical and mechanical behaviour of Al metallizations

authored by
J. Kludt, K. Weide-Zaage, M. Ackermann, V. Hein
Abstract

Al/Ti/TiN metallizations form TiAl 3 layers during the annealing process. The influence of TiAl 3 layers on the thermal-electrical- mechanical behaviour is investigated here. For high temperature automotive and industrial applications in a 0.35 μm CMOS process the test structures have to be approved. The thermal-electrical-mechanical behaviour of the test structures is calculated by simulations. Two aluminium deposition temperatures of 250 °C and 470 °C were considered. The Ti-based layer thicknesses forming the TiAl 3 as well as the whole metallization thickness were investigated. The simulations show a good correlation with measurements.

Organisation(s)
Laboratorium f. Informationstechnologie
External Organisation(s)
X-FAB Silicon Foundries SE
Type
Article
Journal
Microelectronics reliability
Volume
52
Pages
1987-1992
No. of pages
6
ISSN
0026-2714
Publication date
09.2012
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Safety, Risk, Reliability and Quality, Condensed Matter Physics, Surfaces, Coatings and Films, Electrical and Electronic Engineering
Electronic version(s)
https://doi.org/10.1016/j.microrel.2012.06.129 (Access: Unknown)