发明名称 Local dry etching method
摘要 In a local dry etching method, position-thickness data of a semiconductor wafer is previously obtained by measuring the wafer surface, components of position-thickness data shorter than a predetermined spatial wavelength are cut off by filtering and nozzle-wafer relative speed for planarizing the surface is calculated using the filtered data.
申请公布号 US6908566(B2) 申请公布日期 2005.06.21
申请号 US20030419199 申请日期 2003.04.21
申请人 SPEEDFAM CO., LTD. 发明人 YANAGISAWA MICHIHIKO;TSURUOKA KAZUYUKI
分类号 H01J37/32;H01L21/3065;(IPC1-7):H01L21/00 主分类号 H01J37/32
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