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Proceedings Paper

Integrated deposition of TiN barrier layers in cluster tools
Author(s): J. P. Seidel; W. Wachter; William M. Triggs; Robert P. Hall
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Paper Abstract

Ti and TiN layers have several applications in VLSI devices as anti reflective coatings, step coverage enhancement, adhesion layers for blanket tungsten CVD, and with increasing importance, as diffusion barriers. This work describes the development of a simple and reproducible reactive sputtering process for TiN, using a BALZERS ARQ 150 DC planar magnetron with a multichamber process system. Resistivity and uniformity, deposition rate, stoichiometry and stress, and their dependence upon sputter source power, sputtering pressure, argon to nitrogen ratio, and substrate temperature were investigated. A process window is specified with resistivity values below 70|lohm-cm, film uniformity better than ±5% over a 200mm wafer, deposition rates up to 100 nm/minute, and residual stress below 5 x 109 dynes/cm2.

Paper Details

Date Published: 1 January 1992
PDF: 15 pages
Proc. SPIE 1594, Process Module Metrology, Control and Clustering, (1 January 1992); doi: 10.1117/12.56619
Show Author Affiliations
J. P. Seidel, Balzers AG (Liechtenstein)
W. Wachter, Balzers AG (Liechtenstein)
William M. Triggs, Materials Research Corp. (United States)
Robert P. Hall, Balzers (United States)

Published in SPIE Proceedings Vol. 1594:
Process Module Metrology, Control and Clustering
Cecil J. Davis; Irving P. Herman; Terry R. Turner, Editor(s)

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