Patent ID: 6184519
Filing Date: 2001-02-06
Classification: G01Q,H01J,Y10S

Abstract:
A scanning probe microscope with a stage for observing and evaluating a shape, a condition or a property of a sample surface, comprising: a rough stage for rough positioning and a fine motion mechanism for fine positioning for relatively moving in three dimensions a sample and a detecting portion for detecting a physical quantity received from the sample, control means for keeping constant a distance between the sample and the detecting portion, an anti-vibration table for reducing a low frequency vibration transmission caused by installation circumstances, a controlling electric portion for controlling the detecting portion for detecting the physical quantity, a computer for control, means for detecting a vibration of an anti-vibration table plate disposed on the anti-vibration table, means for adding a vibration having an opposite phase to that of the anti-vibration table plate to the anti-vibration table plate thereby forcibly reducing the vibration thereof, and a noise reduction cover covering the anti-vibration table and the structures supported thereon for reducing the influence of a high frequency acoustic vibration on the scanning probe microscope.