发明名称 Surface inspection apparatus
摘要 A device enabling an inspector to inspect a surface of a photomask etc. without holding the photomask manually, and enabling him/her not to lose his/her sight of any defect of the surface even if the surface is tilted. The device includes a hemispherical support, with its open side upward, which is supported so as to slidably move along a spherical surface with a point S as its center, an X-Y stage which is fixed onto the hemispherical support, a rotation unit which is mounted onto the X-Y stage, a support plate which is supported onto the rotation unit, a lighting device which lights up a part of a photomask, on the support plate, corresponding to the spot S and its vicinity. The support plate can be tilted about the spot S.
申请公布号 US5973776(A) 申请公布日期 1999.10.26
申请号 US19980059426 申请日期 1998.04.13
申请人 MATSUSHITA SEIKI CO., LTD. 发明人 MATSUSHITA, HIDEKATSU
分类号 G01B11/30;G01B21/00;G01N21/88;G01N21/93;G01N21/94;G01N21/956;(IPC1-7):G01N21/00 主分类号 G01B11/30
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