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    • 17. 发明申请
    • SINGLE PRECURSORS FOR ATOMIC LAYER DEPOSITION
    • 单原子沉积物的单一前体
    • US20090305504A1
    • 2009-12-10
    • US12374343
    • 2007-07-02
    • Ce MaQing Min Wang
    • Ce MaQing Min Wang
    • H01L21/3205C07F19/00C07F7/28C07F5/06H01L21/31
    • C23C16/405C23C16/45525C23C16/45536C23C16/45553
    • Single precursors for use in flash ALD processes are disclosed. These precursors have the general formula: XmM(OR)n or XpM(O2R′)q where M is Hf, Zr, Ti, Al, or Ta; X is a ligand that can interact with surface hydroxyl sites; OR and O2R′ are alkoxyl groups with R and R′ containing two or more carbon atoms; m+n=3 to 5; p+2q=3 to 5; and m, n, p, q≠0. Further precursors have the general formula: (R12N)mM(═NR2)n or (R3CN2R42)pM(═NR2)q where M is Hf, Zr, Ti, or Ta; R12N is an amino group with R1 containing two or more carbon atoms; NR2 is an imido group with R2 containing two or more carbon atoms; R3 and R4 are alkyl groups; m+2n=4 or 5; p+2q=4 or 5; and m, n, p, q≠0. Flash ALD methods using these precursors are also described.
    • 公开了用于闪光ALD工艺的单一前体。 这些前体具有以下通式:XmM(OR)n或XpM(O 2 R')q,其中M是Hf,Zr,Ti,Al或Ta; X是可以与表面羟基位点相互作用的配体; OR和O 2 R'是具有两个或更多个碳原子的R和R'的烷氧基; m + n = 3〜5; p + 2q = 3〜5; 和m,n,p,q0。 其它前体具有以下通式:(R 12 N)mM(-NR 2)n或(R 3 CN 2 R 42)p M(-NR 2)q,其中M是Hf,Zr,Ti或Ta; R12N是具有含有两个或更多个碳原子的R 1的氨基; NR2是含有两个或更多个碳原子的R2的亚氨基; R3和R4是烷基; m + 2n = 4或5; p + 2q = 4或5; 和m,n,p,q0。 还描述了使用这些前体的闪光ALD方法。