发明授权
US5223719A Mask for use in a charged particle beam apparatus including beam passing sections 失效
用于包括光束通过部分的带电粒子束装置的掩模

Mask for use in a charged particle beam apparatus including beam passing
sections
摘要:
A charged particle beam mask and apparatus and method of using the same employing a mask that includes a substrate and a plurality of substantially rectangular beam passing sections arranged in parallel and to have a trapezoidal shape. In addition, the masks having a matrix of irradiation areas formed thereon where each irradiation area has a matrix of block patterns, are aligned and selectively irradiated to form a desired pattern on an object.
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