Patent ID: 7903249
Filing Date: 2011-03-08
Classification: G01N

Abstract:
1. An apparatus for inspecting defects, comprising: an illuminator for irradiating light having an ultraviolet wavelength emitted from a light source onto a specimen through a objective lens; an image-former for forming an image of light reflected from the specimen by the illumination of the light having the ultra-violet wavelength from the illuminator, which is passed through the objective lens and an image-forming lens; a detector which detects the image of light formed by the image-former with an image sensor; and an image processor for processing a signal output from the detector to detect defects on the specimen; wherein the image sensor is a reverse-surface irradiation type image sensor including a CCD and a gate structure, the CCD being disposed at a detecting side of the reverse-surface irradiation type image sensor, and the gate structure being disposed at an other side of the reverse-surface irradiation type image sensor; and wherein the image sensor is an anti-blooming type image sensor.