Patent ID: 8470401

Claim:
A process for depositing a group V metal containing film on a substrate comprising the steps of: introducing a substrate into a reactor; feeding a compound of the formula (Ia) or of the formula (Ib), or a mixture of said compounds thereof in the vapor phase into the reactor; wherein: M is a group V metal selected from Tantalum (Ta), Niobium (Nb) and Vanadium (V); R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 ; which may be identical or different, are independently chosen from Hydrogen atom, linear or branched alkyl groups having from one to four carbon atoms, linear or branched alkoxy groups having from one to four carbon atoms, linear or branched alkylamide groups having from one to four carbon atoms, linear or branched alkylsilylamide groups having from one to four carbon atoms; either R′ 1 , R′ 2 , R′ 3 and R′ 4 ; which may be identical or different, are independently chosen from Hydrogen atom, linear or branched alkyl groups having from one to four carbon atoms, linear or branched alkoxy groups having from one to four carbon atoms, linear or branched alkylamide groups having from one to four carbon atoms or linear or branched alkylsilylamide groups having from one to four carbon atoms; or and R′ 4 together represent an oxo group (═O) or alkyl imino group having from one to four carbon atoms (═N—R); depositing the group V metal containing film onto said substrate.