Information processing aparatus effecting probe position control with electrostatic force
First Claim
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1. An information processing apparatus comprising:
- a probe;
means for detecting a distance between said probe and an object opposed thereto, based on a physical interaction working between said probe and said object;
an electrostatic actuator for displacing said probe, for adjusting the distance between said probe and said object, said electrostatic actuator including mutually opposed two plate electrodes;
means for detecting a difference between the detected distance and a target distance and for setting a target amount of charge required for compensating said difference; and
control means for controlling the amount of charge to be accumulated between said plate electrodes on the basis of said target amount of charge.
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Abstract
An information processing apparatus utilizing a scanning tunnel microscope includes a probe, a detector for detecting the distance between the probe and an object opposed thereto, based on a physical interaction working between the probe and the object, an electrostatic actuator for displacing the probe, for adjusting the distance between the probe and the object. The electrostatic actuator includes mutually opposed two electrodes: A controller is provided for controlling the amount of charge to be accumulated between the electrodes, so as to maintain a desired distance between the probe and the object, based on the result of detection by the detector.
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Citations
13 Claims
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1. An information processing apparatus comprising:
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a probe; means for detecting a distance between said probe and an object opposed thereto, based on a physical interaction working between said probe and said object; an electrostatic actuator for displacing said probe, for adjusting the distance between said probe and said object, said electrostatic actuator including mutually opposed two plate electrodes; means for detecting a difference between the detected distance and a target distance and for setting a target amount of charge required for compensating said difference; and control means for controlling the amount of charge to be accumulated between said plate electrodes on the basis of said target amount of charge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification