Patent ID: 7593556

Claim:
A sample inspection system comprising: imaging means for generating sample picture data for a plurality of layers of a sample each having a different sample depth, the imaging means comprising a plurality of line sensors arranged parallel to one another, spaced-apart from each other in a horizontal direction, and displaced from each other in a vertical direction relative to the sample; a lens system having an optical configuration that focuses the layers of the sample at the different sample depths on the respective line sensors so that pictures of the layers at the different sample depths are read as line picture data by the line sensors; means for storing the sample picture data generated by the imaging means; means for designating a planar region which is to be extracted from the respective sample picture data; means for extracting picture data corresponding to reduced pictures of the entire designated planar region for each of the respective layers from the respective sample picture data in response to designation of the planar region, and for storing the extracted picture data as a set; and a picture processing apparatus that displays on a display pictures corresponding to the extracted picture data of the respective layers by one of selectively displaying each picture individually in an alternating manner and simultaneously displaying two or more of the pictures together in a parallel or superposed manner, and that displays on the display information corresponding to an index for demarcation on the displayed pictures.