Interconnect structure diffusion barrier with high nitrogen...

Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Of specified material other than unalloyed aluminum

Reexamination Certificate

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C257S758000, C257S753000

Reexamination Certificate

active

07098537

ABSTRACT:
In an interconnect structure of an integrated circuit, a diffusion barrier film in a damascene structure is formed of a film having the composition TaNx, where x is greater than 1.2 and with a thickness of 0.5 to 5 nm.

REFERENCES:
patent: 6117769 (2000-09-01), Nogami et al.
patent: 6346745 (2002-02-01), Nogami et al.
patent: 6491978 (2002-12-01), Kalyanam
patent: 6784096 (2004-08-01), Chen et al.
patent: 2001/0041250 (2001-11-01), Werkhoven et al.
patent: 2002/0030222 (2002-03-01), Agarwal
patent: 2003/0032281 (2003-02-01), Werkhoven et al.

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