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    • 5. 发明授权
    • Method of manufacturing a semiconductor device
    • 制造半导体器件的方法
    • US4619037A
    • 1986-10-28
    • US798728
    • 1985-11-19
    • Shinji TaguchiHomare MatsumuraKenji Maeguchi
    • Shinji TaguchiHomare MatsumuraKenji Maeguchi
    • H01L23/522H01L21/302H01L21/3065H01L21/768H01L21/44
    • H01L21/76877
    • A method of manufacturing a semiconductor device is disclosed. In the manufacturing method, an impurity diffusion layer as a first interconnection layer is formed on a semiconductor substrate. Then, an aluminum layer as a second interconnection layer is formed on the semiconductor substrate with an insulating film interposing therebetween. Another insulating layer is further formed on the aluminum layer. An anisotropic etching process is applied to the insulating layer, the second interconnection layer, and the insulating film, thereby forming a contact extending up to the first interconnection layer through these layers, and the insulating film. After the formation of the contact hole, an aluminum layer is formed on the entire surface of the insulating film including the inner surface of the contact hole. The aluminum layer formed in the contact hole electrically interconnects the first and second interconnecting layers.
    • 公开了制造半导体器件的方法。 在制造方法中,在半导体衬底上形成作为第一互连层的杂质扩散层。 然后,在半导体衬底上形成作为第二互连层的铝层,其间插入有绝缘膜。 在铝层上进一步形成另一绝缘层。 对绝缘层,第二互连层和绝缘膜施加各向异性蚀刻工艺,由此形成通过这些层延伸到第一互连层的接触和绝缘膜。 在形成接触孔之后,在包括接触孔的内表面的绝缘膜的整个表面上形成铝层。 形成在接触孔中的铝层电连接第一和第二互连层。