发明名称 Method for fabricating semiconductor device
摘要 A method for fabricating a semiconductor device includes: the step (a) of forming a vibrating film on a predetermined region of each of a plurality of chips included in a semiconductor wafer; the step (b) of forming, on the semiconductor wafer, an intermediate film containing a sacrifice layer located on the vibrating film of each of the chips; and the step (c) of forming a fixed film on the intermediate film. This method further includes, after the step (c), the step (d) of subjecting the semiconductor wafer to blade dicing to separate the chips, and the step (e) of removing, by etching, the sacrifice layer to provide a cavity between the vibrating film and the fixed film.
申请公布号 US7838323(B2) 申请公布日期 2010.11.23
申请号 US20090578040 申请日期 2009.10.13
申请人 PANASONIC CORPORATION 发明人 UTSUMI MASAKI;KUMAKAWA TAKAHIRO;MATSUURA MASAMI;MATSUSHIMA YOSHIHIRO
分类号 B81C99/00;H01L21/00 主分类号 B81C99/00
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