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Comparison of laser‐initiated and thermal chemical vapor deposition of tungsten films

 

作者: T. F. Deutsch,   D. D. Rathman,  

 

期刊: Applied Physics Letters  (AIP Available online 1984)
卷期: Volume 45, issue 6  

页码: 623-625

 

ISSN:0003-6951

 

年代: 1984

 

DOI:10.1063/1.95333

 

出版商: AIP

 

数据来源: AIP

 

摘要:

ArF excimer laser radiation has been used to deposit W films on silicon and on SiO2by initiating the gas phase reaction of WF6with H2. Deposition rates >100 nm/min and film resistivities as low as two times the bulk value have been obtained at deposition temperatures of 440 °C. The properties of the laser‐deposited films are compared with those of fims obtained using conventional thermal deposition techniques. Film resistivity correlates with the microstructure which in turn depends on the deposition temperature; above 350 °C the low‐resistivity &agr;‐W phase dominates.

 

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