Patent Number: 
Section: claims

1. An apparatus comprising:an electro-optic system configured to irradiate an object with an electron beam;a first detector configured to detect secondary electrons emitted from the object in response to the irradiation of the electron beam from the electro-optic system;an image processor configured to process a signal that is output from the first detector to generate an image of the object;a second detector configured to detect X-rays generated by the object in response to the irradiation of the electron beam and output an X-ray spectrum signal generated by the detector;a first computer configured to estimate elements contained at a portion of the object on which the electron beam is irradiated based on information of the x-ray spectrum signal output from the second detector,a signal processor configured to calculate features of the image generated by the image processor; anda second computer configured to classify the object using information for the features of the images calculated by the signal processor and information for the elements contained at the portion of the object estimated by the first computer. 2. The apparatus according to the claim 1, wherein location data for the portion of the object on which the electron beam is irradiated is obtained by an inspection apparatus prior to irradiation with the electron beam. 3. The apparatus according to the claim 1, wherein the signal processor and the computer are coupled to the memory via a communication link. 4. The apparatus according to the claim 1, wherein:the data of the x-ray spectrum signals stored in the memory contains at least one of an X-ray spectrum and a characteristic X-ray unique to the element. 5. A sample analysis method comprising the steps of:irradiating a portion of a sample with an electron beam;detecting via a first detector secondary electrons emitted from the sample, wherein the secondary electrons are generated via the irradiation of the electron beam on the sample;processing an output signal of the first detector to form an image of the sample;detecting via a second detector X-rays emitted from the object, wherein the X-rays are generated via the irradiation of the electron beam on the sample,outputting from the second detector an X-ray spectrum signal;identifying an element in the irradiated portion of the sample by using information of the X-ray spectrum signal;calculating features of the image of the sample formed at the step of processing; andclassifying the image of the sample by using the calculated features of the image and the identified element of the sample. 6. The method according to the claim 5, wherein in the step of irradiating, the electron beam is irradiated onto a defect of the sample that is detected by an inspection apparatus prior to the irradiating step. 7. The method according to the claim 5, wherein the information on the X-ray spectrum signal used for accessing the database contains at least one of the X-ray spectrum and a characteristic X-ray spectrum. 8. A method comprising the steps ofirradiating a defect of a sample with an electron beam by using location data of the defect that is obtained by an inspection apparatus prior to irradiating the defect;detecting via a first detector secondary electrons emitted from the defect, wherein the secondary electrons are generated by the irradiation;processing a signal output from the first detector to form a secondary electron image of the defect;determining a defect to be analyzed by selecting a defect image among secondary electron images formed by the processing;irradiating the defect determined to be analyzed with an electron beam;detecting via a second detector X-rays generated from the defect to be analyzed;outputting from the second detector an X-ray spectrum signal for the detected X-rays;identifying an element contained in the defect by using information of the X-ray spectrum signal;calculating features of the image of the sample formed at the step of processing; andclassifying the image of the sample by using the calculated features of the image and the identified element of the sample. 9. The method according to the claim 8, wherein the information on the X-ray spectrum signal used for accessing the database contains at least one of the X-ray spectrum and a characteristic X-ray spectrum. 10. The method according to the claim 8, wherein in the step of processing a signal, the secondary electron image of the defect is processed to classify the defect by using characteristics determined from the secondary electron image. 11. The method according to the claim 8, further comprising displaying on a screen a classified defect image with estimated element data determine in the estimating step.