Patent ID: 6717157
Filing Date: 2004-04-06
Classification: B82Y,H01J

Abstract:
A mask inspecting apparatus incorporated into an electron beam proximity exposure apparatus in which a mask is arranged in proximity to a wafer, and a mask pattern formed on the mask is transferred onto a resist layer on the wafer by scanning the mask with an electron beam, the mask inspecting apparatus comprising:an electron beam image-capturing device arranged on one of a wafer stage on which the wafer is to be mounted and an inspecting stage, the electron beam image-capturing device receiving electrons originating from the electron beam transmitting through the mask pattern of the mask so as to capture an image of the transmitting electron beam; and a stage drive device which shifts the one of the wafer stage and the inspecting stage so that the electrons are brought to incidence on the electron beam image-capturing device when the mask is inspected.