181results about "Electron beam carrier recording" patented technology

A media storage device and method for fabricating said device is provided. The device comprises a data layer capable of storing and erasing data via application of an energy beam, such as a near field optical non diffraction limited beam or electron beam. A separate capping layer is deposited on the data layer. The separate capping layer is relatively transparent to the energy beam and may be formed from various materials, including but not limited to an epitaxial material, a conducting material, and a robust high melting point material, such as Molybdenum.

A data storage medium from which information is reproduced by scanning a surface of the medium with a probe-based tip, such as an Atomic Force Microscope (AFM) tip positioned in contact therewith. The medium comprises a substrate; and a polymer recording surface within which data bit values are determined by the topographical state at the bit location. The polymer contains thermally reversible crosslinkages. The data bit value is a function of the depth of the pit at the bit location.

A thermally-assisted magnetic recording head and a magnetic recording apparatus having the magnetic recording head built in are disclosed. The magnetic recording head is capable of recording magnetic information by heating a recording unit of a recording medium and raising its temperature to reduce magnetic coercive force and then applying recording magnetic field to the recording unit having the reduced coercive force. The magnetic recording head has a light absorbing film having an aperture, a laser device emitting and directing light through the aperture to the recording medium to head the recording unit and raise its temperature, and a recording magnetic pole for applying the recording magnetic field to the recording unit. In the aperture, an aperture width W1 is along a polarizing direction of the light emitted from the laser device while an aperture width W2 is approximately perpendicular to the polarizing direction of the aperture width W1, and the aperture width W1 is shorter than the aperture width W2. The heating source such as a laser device recedes from the medium to provide a unique configuration where a tip of the recording magnetic pole protrudes ahead of the heating source, and hence, heating beam and the recording magnetic pole can be located close to each other without losing sufficient energy density to heat the medium.

An optical data-storage hard disk drive that uses stationary Phase-Change Microhead Array Chips in place of conventional flying-heads, rotary voice-coil actuators, or other similar types of servo-tracking mechanisms to simultaneously record and / or reproduce data to and / or from a multitude of data-tracks located across the data-surfaces of a multitude of phase-change based disc media using a multitude of microheads.

A micro-fabricated device, includes a support structure having an aperture formed therein, and a device substrate disposed within the aperture. The micro-fabricated device further includes a thermally isolating structure thermally coupling the device substrate to the support structure. The thermally isolating structure includes at least one n-doped region and at least one p-doped region formed on or in the thermally isolating structure and separated from each other. In addition, the thermally isolating structure includes an electrical interconnect connecting at least one n-doped region and at least one p-doped region, forming an integrated thermoelectric device.

An example dielectric information apparatus is provided with a plurality of electrodes for recording information in a small area of a dielectric substance and an earthed electrode. The electrodes are placed such that the dielectric substance is sandwiched therebetween. The dielectric information apparatus reads out the information recorded in the small area of a dielectric thin film by applying alternating current signals to the first electrodes. The polarization direction of the small area and the direction of an applied electric field decide the dielectric constant of the small area, and the oscillation frequency of an oscillator is determined by a capacitance Cs corresponding to the dielectric constant. An oscillation signal of the oscillator is demodulated at an FM demodulator, and the information is detected from the demodulated signal at a signal detector. When recording, record signals are applied to the first electrodes, and the polarization direction is set to correspond to the record signals.

An apparatus of manufacturing a master by irradiating an electron beam on a substrate mounted on a turntable includes a rotation drive section for rotating the turntable; first and second correction-signal generating sections for respectively detecting first and second asynchronous components of rotational fluctuation of the turntable in a predetermined direction and in a direction perpendicular to the predetermined direction to generate first and second correction signals; and a deflection control section for controlling the electron beam deflection on the basis of the first and second correction signals.

A system for storing data on a magnetic medium using spin polarized electron beams is provided. The system includes a source of spin polarized electrons and a storage medium disposed a selected distance from the source. The storage medium has a plurality of storage locations, each of which includes a layer of magnetic material sandwiched between first and second layers of a half-metallic material. The resulting sandwich structure forms a spin dependent electron trap that increases coupling between beam electrons in a first spin state and target electrons in a second spin state. An electron optics system directs the source of spin polarized electrons to one of the plurality of storage locations.

The present invention provides data storage devices, systems and methods. An example device includes: a storage medium for storing data in the form of marks; and at least one probe. The probe(s) and storage medium are operable to move relative to each other, with each probe comprising a tip facing the storage medium and having a force creating unit associated thereto. The force creating units are operable to create a force acting between the tip and said storage medium. The data storage device is operable to erase an indentation mark in the storage medium by way of controlling the force creating unit for creating at least one erase force pulse with a force rise time being less than or equal to the order of 1 microsecond.

A dielectric reproducing apparatus is provided with: a probe for applying an electric field to a dielectric material of a dielectric recording medium; a return electrode for returning the electric field applied from the probe; an inductor placed between the probe and the return electrode; an oscillator which oscillates at a resonance frequency determined from the inductor and a capacitance formed in the dielectric material just under the probe; an alternating current (AC) signal generation device for generating an AC signal which is applied to the probe; a frequency modulation (FM) demodulator for demodulating a FM modulation signal modulated by the capacitance corresponding to the polarization state owned by the dielectric material just under the probe; and a phase-shift keying (PSK) demodulator for reproducing data from the demodulated signal.

Methods for storing data are provided. Preferably, the method includes the steps of: providing a data storage device, and preventing an emitter associated with a first data cluster of the data storage device from writing data to another one of the data clusters. Data storage devices also are provided.

An electron beam recorder includes an electron optical system for irradiating an electron beam on a master of an information recording medium and an electron beam irradiation position detecting unit for detecting an irradiation position of the electron beam in the electron optical system while the electron beam is being irradiated on the master by the electron optical system.

A fine pattern having first elements within track widths and second elements, which are shifted half a track pitch from the first elements, are drawn across the entire surface of a disk accurately and at high speed. A transfer pattern for a magnetic transfer master carrier is drawn by scanning an electron beam on a disk coated with resist. The first elements and the second elements, which are shifted half a track pitch such that they straddle adjacent tracks, are drawn. While the disk is rotated unidirectionally, the electron beam is deflected in the radial direction within a single track of the disk to draw the first elements. Deflection of the electron beam in the radial direction is shifted half a track, to draw the second elements that straddle adjacent tracks at the same time.

A micro-fabricated device, includes a support structure having an aperture formed therein, and a device substrate disposed within the aperture. The micro-fabricated device further includes a thermally isolating structure thermally coupling the device substrate to the support structure. The thermally isolating structure includes at least one n-doped region and at least one p-doped region formed on or in the thermally isolating structure and separated from each other. In addition, the thermally isolating structure includes an electrical interconnect connecting at least one n-doped region and at least one p-doped region, forming an integrated thermoelectric device.

A storage device includes a first semiconducting layer having a p-dopant and a second semiconducting layer having an n-dopant, disposed on the first semiconducting layer forming a junction between the first and the second semiconducting layers. The storage device also includes a charge trapping structure disposed on the second semiconducting layer and a conductive gate, wherein the conductive gate and the charge trapping structure move relative to the other, wherein an electric field applied across the second semiconducting layer and the conductive gate traps charge in the charge trapping structure.

Memory storage devices that employ atomic resolution storage technology are provided. A preferred memory storage device includes a storage medium that defines one or more coverage areas. Each of the coverage areas incorporates a storage area that is configurable in one of a plurality of structural states. Typically, the structural states represent information stored in the storage area. Electron beam emitters electrically communicate with the storage medium, with the storage medium and the emitters being configured to move relative to each other. So configured, each emitter is capable of providing a beam of electrons to a respective one of the coverage areas. The memory storage device also includes a first current source that selectively electrically communicates with at least one of the emitters. Additionally, a shield is provided that is configured to reduce an influence of a magnetic field so that a tendency of an electron emitted from one of the emitters to be displaced from an intended trajectory is reduced. Methods also are provided.

A media storage device is provided. The device comprises different configurations of a luminescent layer comprising a luminescent material capable of emitting light while being bombarded by a beam from a beam transmitter, a detector for detecting the light emitted from the luminescent layer, and a phase-change layer located proximate the luminescent layer. The phase-change layer is able to transform from a first phase to a second phase. Light emitted from the luminescent layer and received by the detector materially differs when the phase-change layer transforms from the first phase to the second phase.

A stamper suppressed in surface roughness, uneven thickness, and deviation of circularity in inner circumference, a method of producing the same, an optical recording medium produced by molding using the stamper, and a method of producing the same, wherein a base member having a mirror polished main surface and comprising silicon or glass is formed with a resist film; the resist film is exposed by a focused electron beam, an ultraviolet ray laser, etc. and developed so as to form a resist film of a pattern corresponding to relief shapes; the mirror surface of the base member is processed to relief shapes (projecting regions and recessed regions) by dry etching etc. using the obtained resist film as a mask so as to obtain a stamper; the obtained stamper is used for injection molding to form a medium substrate; and an optical recording multilayer film and a protective layer are formed to thereby produce an optical recording medium.

An electron beam applying apparatus includes: a thermal field emission type electron source emitting an electron beam; an electrostatic lens disposed immediately below the electron source and acting as a condensing electrode for condensing the electron beam in a first angular aperture emitted by the electron source in a second angular aperture smaller than the first angular aperture; a condenser lens disposed on a downstream side of the electrostatic lens and condensing the electron beam condensed in the second aperture angel by the electrostatic lens in a crossover point; and an objective lens disposed on a downstream side of the condenser lens and condensing the electron beam condensed in the crossover point by the condenser lens on the surface of the material.

A data storage module for a high density data storage device. The storage module includes a planar rotor having top, bottom, left and right edges. The rotor is suspended within a frame surrounding the top, bottom, left and right edges of the rotor. The rotor is suspended by a plurality of flexures, wherein the flexures adjacent to the top edge are aligned with the top edge, the flexures adjacent to the bottom edge are aligned with the bottom edge, the flexures adjacent the left edge are aligned with the left edge, and the flexures adjacent to the right edge are aligned with the right edge.