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USRE31630E Electron beam exposure system 失效
电子束曝光系统

Electron beam exposure system
摘要:
An electron beam with a cross-section shaped by two aperture plates and a deflector sequentially irradiates pattern areas within a plurality of unit squares on a workpiece in the X and Y directions. The workpiece is continuously shifted in the Y direction by a mechanical means, the amount of workpiece shift being detected to control the deflector and the shaping of said beam cross-section.
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