Glue Layer Study of Inter Via between Cu and Al Metal Lines

Autor: Kevin Chang, John Chen, Linhong Yang, Cheney Qiao
Rok vydání: 2011
Předmět:
Zdroj: ECS Transactions. 34:781-785
ISSN: 1938-6737
1938-5862
Popis: A 0.13um Cu-Al hybrid backend between a dual damascene process with Cu line and a conventional process with Al line is introduced in this paper. First 3 metal layers (M1~M3) interconnects with Cu line for process capability and circuit speed concern. Whereas following metal layers (M4~M7) interconnects with Al line for cost concern. The interconnection via between Cu and Al interface is the key process for Cu-Al hybrid process. This paper mainly focused on via process study between Cu and Al interconnection.
Databáze: OpenAIRE