Patent ID: 8129555

Claim:
An aminosilane precursor for depositing silicon-containing film comprising the following formula (I): (R 1 R 2 N) n SiR 3 4-n (I) wherein substituents R 1 and R 2 are each independently chosen from an alkyl group comprising from 1 to 20 carbon atoms and an aryl group comprising from 6 to 30 carbon atoms, wherein R 1 and R 2 in formula (I) are selected from the group consisting of R 1 and R 2 linked to form a ring structure or R 1 and R 2 not linked to form a ring structure, wherein at least one of substituents R 1 and R 2 comprises at least one electron withdrawing substituent chosen from F, CI, Br, I, CN, NO 2 , PO(OR) 2 , OR, RCOO, SO, SO 2 , SO 2 R and wherein R in the at least one electron withdrawing substituent is chosen from an alkyl group or an aryl group; R 3 is chosen from H, an alkyl group comprising from 1 to 20 carbon atoms, or an aryl group comprising from 6 to 12 carbon atoms, wherein any one or all of R 1 , R 2 , R, R 3 and the electron withdrawing substituent is substituted or unsubstituted, and n is a number ranging from 1 to 4.