Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1988-10-06
1990-01-30
Morgenstern, Norman
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
4271261, 4272552, 4272554, 437190, 437192, 437200, 437202, B05D 512, H01L 21285
Patent
active
048972878
ABSTRACT:
A simple method for forming a metallization for an integrated circuit comprises depositing on a silicon substrate a first layer of refractory metal and nitrogen solid mixture and depositing thereon a second layer of refractory metal. The resulting structure is heated to convert the first layer to refractory metal nitride and the second layer to refractory metal silicide by flow of silicon from the substrate. By appropriate masking of the substrate, formation of silicide in the second layer can be blocked, thus permitting formation of self-aligned metallization by selective etching.
REFERENCES:
patent: 4640004 (1987-03-01), Thomas et al.
Adema Gretchen M.
Berger Henry R.
Bueker Margaret
Cassett Larry R.
Morgenstern Norman
Nemetz Carol
Swope R. Hain
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