Patent ID: 6091499
Filing Date: 2000-07-18
Classification: G01B,G01J

Abstract:
A device for automatic relative adjustment of a sample located on a sample table, said device containing an ellipsometer for analyzing the sample surface, said device comprising:the ellipsometer, said ellipsometer having a first light source;a single sample position detection system, wherein said detection system has a second light source, wherein said detection system is independently adjustable in relation to said ellipsometer, and wherein said detection system can be locked electronically into position relative to said ellipsometer so that said ellipsometer and said detection system can be adjusted as one unit in relation to said sample, wherein said detection system can detect both the tilt of said sample, and distance of said sample from a coordinate source of the ellipsometer in two perpendicular axes; andan adjusting device, wherein said adjusting device can adjust the position of said ellipsometer, and wherein said adjusting device can adjust said sample table, and, wherein said adjusting device can adjust said electronically locked ellipsometer and said detection system.