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    • 2. 发明授权
    • Manufacturing method for an integrated semiconductor structure and corresponding integrated semiconductor structure
    • 集成半导体结构的制造方法和相应的集成半导体结构
    • US07202535B2
    • 2007-04-10
    • US11183224
    • 2005-07-14
    • Matthias GoldbachDongping Wu
    • Matthias GoldbachDongping Wu
    • H01L29/94
    • H01L21/823857
    • The present invention provides a manufacturing method for an integrated semiconductor structure and a corresponding integrated semiconductor structure. The manufacturing method comprises the steps of: providing a semiconductor substrate (1) having an upper surface (O) and having first and second transistor regions (T1, T2); wherein said first transistor region (T1) is a n-MOSFET region and second transistor region (T2) is a p-MOSFET region; forming a gate structure on said first and second transistor region (T1, T2) including at least one gate dielectric layer (2, 3, 10c, 17, 25) and one gate layer (4; 35; 50, 60) in each of said first and second transistor regions (T1, T2); wherein said gate layer (4; 35; 60) in said second transistor region (T2) is made of negatively doped polysilicon; wherein said at least one gate dielectric layer (2, 10c, 17) in said first transistor region (T1) comprises a first dielectric layer (2, 10c, 17); wherein said at least one gate dielectric layer (2, 3, 10c, 25, 25′) in said second transistor region (T2) comprises an interfacial dielectric layer (2; 25; 25′) located adjacent to said gate layer (4; 35; 60) in said second transistor region (T2), which interfacial dielectric layer (2; 25; 25′) forms an Al2O3 containing interface on said gate layer (4; 35; 60) in said second transistor region (T2) causing a Fermi-pinning effect; and wherein said first transistor region (T1) does not include said interfacial dielectric layer (2; 25; 25′).
    • 本发明提供了一种用于集成半导体结构和相应的集成半导体结构的制造方法。 该制造方法包括以下步骤:提供具有上表面(O)并具有第一和第二晶体管区域(T 1,T 2)的半导体衬底(1); 其中所述第一晶体管区域(T 1)是n-MOSFET区域,第二晶体管区域(T 2)是p-MOSFET区域; 在包括至少一个栅极介电层(2,3,10c,17,25)和一个栅极层(4; 35; 50,60)的所述第一和第二晶体管区域(T 1,T 2)上形成栅极结构, 在所述第一和第二晶体管区域(T 1,T 2)的每一个中; 其中所述第二晶体管区域(T 2)中的所述栅极层(4; 35; 60)由负掺杂多晶硅制成; 其中所述第一晶体管区域(T 1)中的所述至少一个栅介质层(2,10c,17)包括第一介电层(2,10c,17); 其中所述第二晶体管区域(T 2)中的所述至少一个栅极电介质层(2,3,10c,25,25')包括邻近所述栅极层的界面电介质层(2; 25; 25') 4; 35; 60)在所述第二晶体管区域(T 2)中,所述界面电介质层(2; 25; 25')形成含有Al 2 N 3 O 3界面 在所述第二晶体管区域(T 2)中的所述栅极层(4; 35; 60)上引起费米钉扎效应; 并且其中所述第一晶体管区域(T 1)不包括所述界面电介质层(2; 25; 25')。
    • 3. 发明申请
    • Manufacturing method for an integrated semiconductor structure and corresponding integrated semiconductor structure
    • US20070015325A1
    • 2007-01-18
    • US11183224
    • 2005-07-14
    • Matthias GoldbachDongping Wu
    • Matthias GoldbachDongping Wu
    • H01L21/8238
    • H01L21/823857
    • The present invention provides a manufacturing method for an integrated semiconductor structure and a corresponding integrated semiconductor structure. The manufacturing method comprises the steps of: providing a semiconductor substrate (1) having an upper surface (O) and having first and second transistor regions (T1, T2); wherein said first transistor region (T1) is a n-MOSFET region and second transistor region (T2) is a p-MOSFET region; forming a gate structure on said first and second transistor region (T1, T2) including at least one gate dielectric layer (2, 3, 10c, 17, 25) and one gate layer (4; 35; 50, 60) in each of said first and second transistor regions (T1, T2); wherein said gate layer (4; 35; 60) in said second transistor region (T2) is made of negatively doped polysilicon; wherein said at least one gate dielectric layer (2, 10c, 17) in said first transistor region (T1) comprises a first dielectric layer (2, 10c, 17); wherein said at least one gate dielectric layer (2, 3, 10c, 25, 25′) in said second transistor region (T2) comprises an interfacial dielectric layer (2; 25; 25′) located adjacent to said gate layer (4; 35; 60) in said second transistor region (T2), which interfacial dielectric layer (2; 25; 25′) forms an Al2O3 containing interface on said gate layer (4; 35; 60) in said second transistor region (T2) causing a Fermi-pinning effect; and wherein said first transistor region (T1) does not include said interfacial dielectric layer (2; 25; 25′).