摘要:
Information is recorded by providing a recording medium having a recording layer on an electroconductive substrate transmitting an electromagnetic wave and an electroconductive optical probe arranged proximate to the recording medium, and applying a voltage between the substrate and the optical probe. The recorded information is read by irradiating an electromagnetic wave, preferably with a plurality of wavelengths, on the recording layer from the substrate side, and detecting with the optical probe an electromagnetic wave oozed out on the surface of the recording layer.
摘要:
A method and apparatus for detecting the relative positional displacement between a mask and a wafer. The mask is provided with a cantilever. The position mark is provided on the wafer so as to face the cantilever. A relative positional displacement between the mask and the wafer is detected from a deformation amount of the cantilever based on a force acting between the position mark and the cantilever upon relative movement of the position mark and the cantilever.
摘要:
A cantilever unit comprises a cantilever for supporting a probe and a displacement amount detecting means, the displacement amount detecting means being integrated with the cantilever. An information processing apparatus comprises the cantilever unit and optionally an information recording medium stationed in close vicinity to the unit, wherein an information in the medium is reproduced at a signal on the basis of an displacement amount of the cantilever. An atomic force microscope and magnetic force microscope comprise the cantilever unit, respectively.
摘要:
An information recording and reproducing apparatus is provided with a probe electrode supported by a probe plate and arranged to face a recording medium supported by a recording medium plate, drive elements for relatively moving the recording medium and the probe electrode, voltage application circuit for applying a voltage between the recording medium and the probe electrode and an electric wire take-out portion for taking out an electric wire provided on at least one of a plane of the probe plate opposite to the probe electrode and a plane of the recording medium plate opposite to the recording medium.
摘要:
An information recording and/or reproducing apparatus performs at least one of record and reproduction of information on an information record medium with a plurality of probes. The apparatus includes a support plate supporting the plurality of probes and segmented into a plurality of blocks, and a driving mechanism for driving the plurality of blocks independently of one another. Another apparatus may include an information record medium segmented into a plurality of blocks, a support plate supporting a plurality of probes, and a driving mechanism for driving the plurality of blocks independently of one another.
摘要:
A driving apparatus for driving an object comprises a pair of piezoelectric elements, one of them being arranged on the one side of the object while the other of them on the other side of the object, and the respective electrode arrangement directions of the pair of piezoelectric elements being substantially identical to each other, and a control circuit which applies a predetermined voltage across the outer electrodes of the pair of piezoelectric elements respectively, gives an equipotential to the inner electrodes thereof, and causes the pair of piezoelectric elements to drive the object by varying the value of the potential given to the inner electrodes. Hence, the increased amount of a voltage applied to one piezoelectric element is exactly identical to the decreased amount for the other so as to make the extended and contracted amounts of the piezoelectric elements on both sides of the object the same. Consequently, no useless stress is given to the piezoelectric elements for the prevention of the deterioration of the elements to implement a precise fine driving over a long period.
摘要:
An information processing apparatus includes first, second and third upper electrodes provided on a first substrate, and first, second and third lower electrodes provided on a second substrate opposed to the first, second and third upper electrodes, respectively. Also provided are first, second and third detectors for detecting a first capacitance between the first upper and lower electrodes, a second capacitance between the second upper and lower electrodes and a third capacitance between the third upper and lower electrodes. In addition, the apparatus also includes a first driver for moving the first and second substrates relative to each other in a first direction with respect to the substrate surfaces, a second driver for moving the first and second substrates relative to each other in a second direction perpendicular to the first direction, a third driver for rotating the first and second substrates relative to each other about an axis in a third direction perpendicular to the first and second directions, and a control unit.
摘要:
A method and apparatus for recording information on an information recording medium and/or reproducing information from the recording medium. Probes for recording and/or reproducing information and a support for supporting the probes are arranged so that the probes are positioned to face the information recording medium. The support and the information recording medium are relatively moved by sliding on sliding surfaces thereof. The distance between the support and the recording medium is roughly set by projections formed between the support and the recording medium, and is finely adjusted during operation by a mechanism for moving the probes.
摘要:
A memory apparatus for effecting the writing or reading of information on a recording medium by a probe has a base having the probe attached thereto, a substrate supporting the recording medium thereon and movable relative to the base, and a frame containing the base and the substrate therein, and the coefficients of linear expansion of the base and the substrate are made approximate to each other since the coefficients of linear expansion of the base and the substrate are approximate to each other, any relative positional deviation between the probe and the recording medium will not occur even if temperature changes.
摘要:
An apparatus for and a method of moving a probe for causing a physical phenomenon to occur between it and a predetermined object and moving the probe and the object relative to each other to make the probe approach the object. At least one of the probe and the object is driven in a predetermined direction to displace one of the probe and the object in the predetermined direction relative to the other. A physical phenomenon occurring between the probe and the object is detected. At least one of the probe and the object is driven so as to bring the probe and the object close to each other. The driving for the approach of the probe to the object is controlled on the basis of the result of the detection of the physical phenomenon during the driving in the predetermined direction. The specification also discloses an information detection and/or input apparatus using such apparatus and method.