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    • 4. 发明授权
    • Etching method and apparatus for semiconductor wafers
    • 半导体晶片的蚀刻方法和装置
    • US07097784B2
    • 2006-08-29
    • US10742992
    • 2003-12-23
    • Yoshihiro OgawaHisashi OkuchiHiroshi TomitaHiroyasu Iimori
    • Yoshihiro OgawaHisashi OkuchiHiroshi TomitaHiroyasu Iimori
    • B44C1/22C03C15/00
    • H01L21/67248H01L21/31111H01L21/67086
    • A method for etching semiconductor wafers in an etching apparatus including an etching bath filled with an etchant and capable of setting liquid temperature and process sequence, comprises selecting a predetermined etching program suitable for etching of the semiconductor wafer, counting the number of the semiconductor wafers to be charged in the etching bath before the etching, calculating a temperature drop of the etchant based on the counted number, setting the liquid temperature of the etchant to an initial temperature B obtained by adding the temperature drop of the etchant to a predetermined etching temperature A, charging the semiconductor wafers in the etching bath at a predetermined timing to etch the semiconductor wafers, and setting the liquid temperature at the predetermined etching temperature A, immediately before or after the liquid temperature reaches the initial temperature B.
    • 一种用于在包括填充有蚀刻剂并能够设定液体温度和工艺顺序的蚀刻液的蚀刻装置中蚀刻半导体晶片的方法,包括选择适合于半导体晶片的蚀刻的预定蚀刻程序,将半导体晶片的数量计数为 在蚀刻之前将其装入蚀刻液中,基于计数得出蚀刻剂的温度下降,将蚀刻剂的液体温度设定为通过将蚀刻剂的温度降加到预定蚀刻温度A而获得的初始温度B 在预定的时刻对蚀刻液中的半导体晶片进行充电,以蚀刻半导体晶片,并在液体温度达到初始温度B之前或之后将液体温度设定在预定蚀刻温度A。