Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1986-02-24
1988-08-02
Childs, Sadie L.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
20419215, 20419222, 20419225, 427 42, 4272481, 427250, 427255, 4272551, B05D 306, C23C 1600
Patent
active
047613009
ABSTRACT:
Accurate metered amounts of Pnictide.sub.4 species are delivered via an argon carrier gas into an evacuated sputtering deposition chamber. The pnictide is maintained at a high temperature in a tall column by means of a constant temperature oil bath. An inert gas, such as argon, is passed through the column of Pnictide and the Pnictide.sub.4 enriched carrier gas delivered to the vacuum chamber. Films of pnictide, polypnictide, and other pnictide compounds may be deposited for semiconductor, thin film transistors, and other applications including insulation and passivation, particularly on III-V semiconductors. The local order of the deposited films may be controlled by varying the amount of energy delivered to the surface of the substrate, which is a function of its temperature, the RF power used, and the amount of excess P.sub.4 supplied. The pnictides used in the invention may include phosphorus, arsenic and antimony. Phosphorous and KP.sub.15, and KP.sub.x wherein x ranges from 15 to infinity are discussed. Deposition onto III-V semiconductors (InP, GaP, and GaAs) are disclosed.
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Schachter Rozalie
Viscogliosi Marcello
Childs Sadie L.
Davis IV F. Eugene
Stauffer Chemical Company
Stone Mark P.
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