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    • 48. 发明授权
    • Semiconductor device manufacturing method
    • 半导体器件制造方法
    • US08071447B2
    • 2011-12-06
    • US12704315
    • 2010-02-11
    • Seiji InumiyaTomonori Aoyama
    • Seiji InumiyaTomonori Aoyama
    • H01L21/336
    • H01L21/28167H01L21/02057H01L21/28088H01L21/28194H01L21/28202H01L21/7624H01L21/823857H01L29/4966H01L29/513H01L29/517H01L29/518H01L29/66795H01L29/785
    • A semiconductor device manufacturing method includes removing an insulating film on a semiconductor substrate by etching and subsequently oxidizing a surface of the substrate by using a liquid oxidation agent without exposing this surface to an atmosphere, thereby forming a first insulating film containing an oxide of a constituent element of the substrate on the surface of the substrate; forming a second insulating film containing an aluminum oxide on the first insulating film; forming a third insulating film containing a rare earth oxide on the second insulating film; forming a high-k insulating film on the third insulating film; introducing nitrogen into the high-k insulating film to thereby make it a fourth insulating film; and conducting heat treatment to change the first through third insulating films into an insulating film made of a mixture containing aluminum, a rare earth element, the constituent element of the substrate, and oxygen.
    • 一种半导体器件的制造方法,其特征在于,在半导体基板上通过蚀刻,通过使用液体氧化剂对所述基板的表面进行氧化而不使所述表面暴露在大气中而除去半导体基板上的绝缘膜,由此形成含有成分的氧化物的第一绝缘膜 衬底表面上的衬底元件; 在所述第一绝缘膜上形成含有氧化铝的第二绝缘膜; 在所述第二绝缘膜上形成含有稀土类氧化物的第三绝缘膜; 在第三绝缘膜上形成高k绝缘膜; 将氮引入高k绝缘膜,从而使其成为第四绝缘膜; 进行热处理,将第一至第三绝缘膜变成由含有铝,稀土元素,基板的构成元素和氧的混合物构成的绝缘膜。
    • 50. 发明申请
    • SEMICONDUCTOR DEVICE MANUFACTURING METHOD
    • 半导体器件制造方法
    • US20100203704A1
    • 2010-08-12
    • US12704315
    • 2010-02-11
    • Seiji INUMIYATomonori Aoyama
    • Seiji INUMIYATomonori Aoyama
    • H01L21/762H01L21/28
    • H01L21/28167H01L21/02057H01L21/28088H01L21/28194H01L21/28202H01L21/7624H01L21/823857H01L29/4966H01L29/513H01L29/517H01L29/518H01L29/66795H01L29/785
    • A semiconductor device manufacturing method includes: removing an insulating film on a semiconductor substrate by etching and subsequently oxidizing a surface of the semiconductor substrate by using a liquid oxidation agent without exposing this surface to an atmosphere, thereby forming a first insulating film containing an oxide of a constituent element of the semiconductor substrate on the surface of the semiconductor substrate; forming a second insulating film containing an aluminum oxide on the first insulating film; forming a third insulating film containing a rare earth oxide on the second insulating film; forming a high-k insulating film on the third insulating film; introducing nitrogen into the high-k insulating film to thereby make it a fourth insulating film; and conducting heat treatment to change the first through third insulating films into a insulating film made of a mixture containing aluminum, a rare earth element, the constituent element of the semiconductor substrate, and oxygen.
    • 半导体器件制造方法包括:通过使用液体氧化剂蚀刻并随后氧化半导体衬底的表面而在半导体衬底上去除绝缘膜而不将该表面暴露在大气中,从而形成含有氧化物的第一绝缘膜 半导体衬底的表面上的构成元件; 在所述第一绝缘膜上形成含有氧化铝的第二绝缘膜; 在所述第二绝缘膜上形成含有稀土类氧化物的第三绝缘膜; 在第三绝缘膜上形成高k绝缘膜; 将氮引入高k绝缘膜,从而使其成为第四绝缘膜; 并且进行热处理以将第一至第三绝缘膜改变为由含有铝,稀土元素,半导体衬底的构成元素和氧的混合物制成的绝缘膜。