Patent ID: 7288762
Filing Date: 2007-10-30
Classification: B82Y,G01Q,Y10S

Abstract:
1. A fine-adjustment mechanism for a scanning probe microscopy for fine-adjusting the relative position between a subject to be measured (sample) and a probe in order to measure roughness or physical properties of the subject to be measured by scanning the surface of the subject to be measured by the probe comprising: a piezoelectric device constituting the fine-adjustment mechanism; at least two electrodes for applying voltage to the piezoelectric device, at least one of the electrodes being used as a dummy electrode on which no voltage is applied and the other electrode being used as an active electrode that generates a strain on the piezoelectric device when applied with voltage; one or two resistors for detecting the strain at one or two positions on the active electrode; and one or more resistors provided on the dummy electrode, wherein the respective resistors on the active electrode and the dummy electrode are connected so that temperature compensation is performed by the resistor on the dummy electrode when strain detection is performed by the resistor on the active electrode to form a bridge circuit.