Electron microscope device
First Claim
1. An electron microscope device, comprising a scanning electron microscope and an optical microscope, wherein said scanning electron microscope has scanning means for scanning an electron beam and an electron detector for detecting electrons issued from a specimen scanned by the electron beam, and said scanning electron microscope acquires a scanning electron image based on a detection result from said electron detector, wherein said optical microscope projects an illumination light to the specimen, receives a reflection light from said specimen and acquires an optical image, and wherein an optical axis of said scanning electron microscope crosses an optical axis of said optical microscope at a point of observation of said specimen,wherein said scanning means projects said electron beam for scanning with a scanning width wider than a width of a scanning area, said optical microscope projects an illumination light and acquires an optical image in an overrunning portion where said electron beam is projected beyond said scanning area, and said scanning electron microscope acquires a scanning electron image based on electrons issued when said electron beam scans over said scanning area.
2 Assignments
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Accused Products
Abstract
The present invention provides an electron microscope device 1, comprising a scanning electron microscope 2 and an optical microscope 3, wherein the scanning electron microscope has scanning means 10 for scanning an electron beam and an electron detector 12 for detecting electrons issued from a specimen 8 scanned by the electron beam, and the scanning electron microscope acquires a scanning electron image based on a detection result from the electron detector, wherein the optical microscope projects an illumination light to the specimen, receives a reflection light from the specimen and acquires an optical image, and wherein an optical axis 7 of the scanning electron microscope crosses an optical axis 6 of the optical microscope at a point of observation of the specimen, wherein the scanning means projects the electron beam for scanning with a scanning width wider than a width of a scanning area, the optical microscope projects an illumination light and acquires an optical image in an overrunning portion where the electron beam is projected beyond the scanning area, and the scanning electron microscope acquires a scanning electron image based on electrons issued when the electron beam scans over the scanning area.
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Citations
6 Claims
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1. An electron microscope device, comprising a scanning electron microscope and an optical microscope, wherein said scanning electron microscope has scanning means for scanning an electron beam and an electron detector for detecting electrons issued from a specimen scanned by the electron beam, and said scanning electron microscope acquires a scanning electron image based on a detection result from said electron detector, wherein said optical microscope projects an illumination light to the specimen, receives a reflection light from said specimen and acquires an optical image, and wherein an optical axis of said scanning electron microscope crosses an optical axis of said optical microscope at a point of observation of said specimen,
wherein said scanning means projects said electron beam for scanning with a scanning width wider than a width of a scanning area, said optical microscope projects an illumination light and acquires an optical image in an overrunning portion where said electron beam is projected beyond said scanning area, and said scanning electron microscope acquires a scanning electron image based on electrons issued when said electron beam scans over said scanning area.
Specification