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.
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