首页> 外国专利> The management device of the minute pattern survey instrument and the CDSEM device, minute pattern inspection manner and management manner of the CDSEM device, irradiating the electron beam to the multiple test patterns which

The management device of the minute pattern survey instrument and the CDSEM device, minute pattern inspection manner and management manner of the CDSEM device, irradiating the electron beam to the multiple test patterns which

机译:微小图案检查仪和CDSEM装置的管理装置,微小图案检查方式和CDSEM装置的管理方式,将电子束照射到多个测试图案上,

摘要

A fine pattern inspection apparatus includes: a first calculation unit which receives data of a first secondary electron signal obtained by irradiating a plurality of test patterns formed on a test substrate with an electron beam and receives data of an contour shape of a cross-section of each of the test patterns, the test substrate being the same as a substrate on which a pattern to be inspected is formed, the test patterns being formed with different cross-sectional shapes, and which separates the first secondary electron signal into variables of a first function containing the contour shape of the cross-section as arguments, a second function that is defined by a step function depending on respective materials constituting the test patterns and a third function that represents the size of a distortion of the signal; a storing unit which has a first storing area to store the first through third functions obtained from the first calculation unit; and a second calculation unit which receives data of a second secondary electron signal obtained by irradiating the pattern to be inspected with an electron beam, and executes calculations so as to extract components relating to the cross-sectional shape of the pattern to be inspected from the second secondary electron signal by using the first through third functions stored in the storing unit.
机译:精细图案检查装置包括:第一计算单元,该第一计算单元接收通过用电子束照射形成在测试基板上的多个测试图案而获得的第一二次电子信号的数据,并且接收第一截面的轮廓形状的数据。每个测试图案,测试基板与在其上形成要检查的图案的基板相同,测试图案形成为具有不同的横截面形状,并且将第一二次电子信号分离为第一二次电子信号包含横截面轮廓形状作为参量的函数,取决于构成测试图案的各个材料由阶跃函数定义的第二函数以及代表信号失真大小的第三函数;存储单元,其具有第一存储区域,用于存储从第一计算单元获得的第一至第三功能。第二计算单元,其接收通过用电子束照射待检查图案而获得的第二二次电子信号的数据,并执行计算以从所述待检查图案中提取与待检查图案的截面形状有关的分量。通过使用存储在存储单元中的第一至第三功能来获得第二二次电子信号。

著录项

  • 公开/公告号JP3834495B2

    专利类型

  • 公开/公告日2006-10-18

    原文格式PDF

  • 申请/专利权人 株式会社東芝;

    申请/专利号JP20010296275

  • 发明设计人 池 田 隆 洋;

    申请日2001-09-27

  • 分类号H01L21/66;G01B15/04;G01N23/225;

  • 国家 JP

  • 入库时间 2022-08-21 21:52:36

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