发明授权
US07067220B2 Pattern compensation techniques for charged particle lithographic masks 失效
带电粒子光刻掩模的图案补偿技术

Pattern compensation techniques for charged particle lithographic masks
摘要:
A method of producing a particle beam mask and mask structures to allow for the use of dummy fill shapes. This invention overcomes distortion in by adding a dummy shape in unexposed regions and applying a blocking layer to cover the dummy shape. The blocking layer is comprised of an aperture or additional mask mounted close to the mask or can be added to the mask itself.
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