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    • 57. 发明申请
    • METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
    • 制造半导体器件的方法
    • US20160351441A1
    • 2016-12-01
    • US15054855
    • 2016-02-26
    • KABUSHIKI KAISHA TOSHIBA
    • Satoshi TSUKIYAMAMotoshi SETO
    • H01L21/768H01L23/528H01L23/522
    • H01L21/76826H01L21/76814H01L21/76831H01L21/76898H01L23/481H01L23/53238H01L2224/11
    • According to an embodiment, a method of manufacturing a semiconductor device includes forming a first opening that extends from a second surface of a semiconductor substrate opposite to a first surface toward the first surface and extending to a first insulating layer in the semiconductor substrate, performing a first annealing process in a first gas atmosphere that contains hydrogen after formation of the first opening, forming a second insulating layer on a side wall of the semiconductor substrate in the first opening, performing a second annealing process after formation of the second insulating layer, forming a second opening that extends to the conductive layer in the first insulating layer through the first opening, and forming a via that is connected to the conductive layer in the first and second openings.
    • 根据实施例,制造半导体器件的方法包括形成从半导体衬底的与第一表面相对的第二表面朝向第一表面延伸并延伸到半导体衬底中的第一绝缘层的第一开口,执行 在形成第一开口后在含有氢的第一气体气氛中进行第一退火处理,在第一开口中在半导体基板的侧壁上形成第二绝缘层,在形成第二绝缘层之后进行第二退火处理,形成 第二开口,其通过第一开口延伸到第一绝缘层中的导电层,并形成连接到第一和第二开口中的导电层的通孔。