Precursors for depositing silicon-containing films and methods for making and using same
申请人:Air Products and Chemicals, Inc.
公开号:US08129555B2
公开(公告)日:2012-03-06
Aminosilane precursors for depositing silicon-containing films, and methods for depositing silicon-containing films from these aminosilane precursors, are described herein. In one embodiment, there is provided an aminosilane precursor for depositing silicon-containing film comprising the following formula (I):
(R1R2N)nSiR34-n (I)
wherein substituents R1 and R2 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, at least one of substituents R1 and R2 comprises at least one electron withdrawing substituent chosen from F, Cl, Br, I, CN, NO2, PO(OR)2, OR, SO, SO2, SO2R and wherein R in the at least one electron withdrawing substituent is chosen from an alkyl group or an aryl group, R3 is chosen from H, an alkyl group, or an aryl group, and n is a number ranging from 1 to 4.
本文描述了用于沉积含硅薄膜的氨基硅烷前体以及从这些氨基硅烷前体沉积含硅薄膜的方法。在一种实施例中,提供了一种用于沉积含硅薄膜的氨基硅烷前体,其包括以下式子(I):
(R1R2N)nSiR34-n (I)
其中取代基R1和R2各自独立地选择来自1到20个碳原子的烷基和来自6到30个碳原子的芳基,其中至少一个取代基R1和R2包括至少一个电子吸引取代基,所述电子吸引取代基选择自F、Cl、Br、I、CN、NO2、PO(OR)2、OR、SO、SO2、SO2R,其中所述至少一个电子吸引取代基中的R选择自烷基或芳基,R3选择自H、烷基或芳基,n为1到4的数字。