Patent ID: 7390360
Filing Date: 2008-06-24
Classification: C23C,C30B,Y10T

Abstract:
1. A method of depositing a film comprising a Group IIIA metal on a substrate comprising the steps of: a) conveying a Group IIIA metal compound of formula I, R 3 M, where M is a Group IIIA metal and each R is independently a (C 1 -C 10 ) organic radical or hydrogen, in a gaseous phase to a deposition chamber containing the substrate; b) conveying a catalytic amount of a catalyst compound in a gaseous phase to the deposition chamber containing the substrate, wherein the catalyst compound is chosen from hydrazine, hydrazoic acid, diethyl beryllium, n-butyl lithium, bis(n-butyl)magnesium secondary arsines and tertiary arsines; c) conveying one or more of ammonia, phosphine and arsine in a gaseous phase to the deposition chamber containing the substrate; d) decomposing the Group IIIA metal compound and the one or more of ammonia, phosphine and arsine in the deposition chamber; and e) depositing the film comprising the Group IIIA metal on the substrate and wherein the catalyst compound is chosen from hydrazine, hydrazoic acid, diethyl beryllium, n-butyl lithium, bis(n-butyl)magnesium, bis(ethylcyclopentadienyl)nickel, titanium tetrachloride, RuCp 2 , Mo(EtBz) 2 , CoCp 2 , Ba(nPrMe 4 Cp) 2 , Ca(Me 5 Cp) 2 , Cu(TMHD) 2 , CrCp 2 , ErCp 3 , FeCp 2 , Me 2 Au(acac), LaCp 3 , MnCp 2 , MoCp 2 , OsCp 2 , Me 3 Pd(MeCp), Me 3 Pt(MeCp), Rh(acac) 2 , (hfacac)AgVTES, Sr(nPrMe 4 Cp) 2 , Sr(hfacac), (iPrCp) 2 WH 2 , VCp 2 , V(EtCp) 2 , Y(nBuCp) 3 , InCp, In(Me5Cp), nitrogen-containing compound, phosphorus-containing compound, arsine-containing compound, and a compound of formula II, R 1 a MY b , wherein M is a Group IIIA metal, each R 1 is independently chosen from (C 1 -C 10 ) organic radical and hydrogen, each Y is independently chosen from a halogen and hydrogen, a is an integer from 0 to 2, b is an integer from 1-3, and a+b=3; wherein the nitrogen containing compound is chosen from primary amines, secondary amines and tertiary amines; wherein the phosphorus-containing compound is chosen from primary phosphines, secondary phosphines and tertiary phosphines; and wherein the arsenic-containing compound is chosen from primary arsines, secondary arsines and tertiary arsines.