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    • 57. 发明授权
    • Manufacturing method of semiconductor substrate and semiconductor device
    • 半导体衬底和半导体器件的制造方法
    • US07863155B2
    • 2011-01-04
    • US12155053
    • 2008-05-29
    • Shunpei YamazakiKoichiro Tanaka
    • Shunpei YamazakiKoichiro Tanaka
    • H01L21/30
    • H01L27/1266H01L21/76254H01L27/1214H01L29/66772
    • It is an object of the present invention to obtain a large-sized SOI substrate by providing a single-crystal silicon layer over a large-sized glass substrate in a large area. After a plurality of rectangular single-crystal semiconductor substrates each provided with a separation layer are aligned over a dummy substrate and both of the substrates are fixed with a low-temperature coagulant, the plurality of single-crystal semiconductor substrates are bonded to a support substrate; the temperature is raised up to a temperature, at which the low-temperature coagulant does not to have a bonding effect, so as to isolate the dummy substrate and the single-crystal semiconductor substrates; heat treatment is performed to separate part of the single-crystal semiconductor substrates, along a boundary of the respective separation layers; and single-crystal semiconductor layers are provided over the support substrate.
    • 本发明的目的是通过在大面积的大尺寸玻璃基板上设置单晶硅层来获得大尺寸的SOI衬底。 在分别设置有分离层的多个矩形单晶半导体基板之后,在虚拟基板上排列两个基板,并用低温凝结剂固定,将多个单晶半导体基板接合到支撑基板 ; 将温度升高到低温凝结剂不具有接合效果的温度,以隔离虚设基板和单晶半导体基板; 执行热处理以沿着各个分离层的边界分离部分单晶半导体衬底; 并且在支撑衬底上设置单晶半导体层。