Patent Number: 
Section: claims

1. A semiconductor wafer inspection method comprising the steps of:placing a semiconductor wafer on a sample stage of an electron beam apparatus having a first electron beam optical system for irradiating an electron beam from a direction normal to a surface of a sample, and a second electron beam optical system for irradiating an electron beam from a direction tilted from the direction normal to the surface;obtaining defect position data on the semiconductor wafer from an inspection apparatus;moving the stage to a position corresponding to a defect position obtained from the inspection data, and capturing a scanned image of a defect by using the first electron beam optical system;discriminating a mode of the defect on the basis of the captured defect image;determining whether or not there is a defect which has been discriminated as one of a peeling mode; andcapturing a scanned image of an edge portion of the semiconductor wafer by using the second electron beam optical system, when it is determined in the above determination that there is a defect of the peeling mode. 2. The semiconductor wafer inspection method according to claim 1, wherein an area of an edge portion of the semiconductor wafer is determined on the basis of a distribution of defects of the peeling mode on the semiconductor wafer, the area to be imaged by using the second electron beam optical system. 3. A defect review apparatus comprising:a sample stage which moves with a semiconductor wafer held thereon;a first electron beam optical system for irradiating an electron beam from a direction normal to a surface of the semiconductor wafer held on the sample stage;a second electron beam optical system for irradiating an electron beam from a direction tilted from the direction normal to the surface;a display unit for displaying an image of the surface of the semiconductor wafer, the image generated by the irradiation of the electron beam; andmeans which classifies defects on the basis of an image of the defects captured by using the first electron beam optical system, which causes the display unit to display a wafer map showing the positions of defects of a peeling mode on the semiconductor wafer in a manner discriminating the defects of the peeling mode from the defects of the other modes, and which causes the display unit to display a scanned image of an edge of the semiconductor wafer, the image captured by using the second electron beam optical system.