发明名称 Etching processing method for a material layer
摘要 The present invention provides a processing method that changes the given and unfavorable surface contour of a material layer to a predetermined, more favorable surface contour at least along a selected radial direction of the workpiece. Due to the fact that the etch process included into the processing method affects the whole workpiece simultaneously, a high throughput is achievable and the etching method is easily applied in an industrial setting, for example for the mass production of semiconductor products.
申请公布号 US6852639(B2) 申请公布日期 2005.02.08
申请号 US20020210757 申请日期 2002.07.31
申请人 INFINEON TECHNOLOGIES AG 发明人 RUDOLPH MATTHIAS;STOLZE JENS;MORGENSTERN THOMAS;HAENSEL JANA
分类号 H01L21/00;H01L21/308;H01L21/311;(IPC1-7):H01L21/302 主分类号 H01L21/00
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