Abstract:
Provided is a small form factor optical/magnetic disk including an integrated metal hub and a disk plate. The integrated metal hub includes a circular upper metal hub and a circular lower metal hub integrally formed with and disposed under the upper metal hub. The circular lower metal hub has a smaller diameter smaller than the upper metal hub. A central hole is formed in central portions of the upper and lower metal hubs and passes through the upper and lower metal hubs. The disk plate has a through-hole that is formed in a central portion and is directly associated with the integrated metal hub, and a recess that is formed around the through-hole and allows the upper metal hub to be mounted therein. Since the central portion of the small form factor optical/magnetic disk is not thick, the small form factor optical/magnetic disk can contribute to an ultra thin small form factor information storage device. Also, since manufacturing processes are simple, price and quality competitiveness can be enhanced.
Abstract:
Provided is an optical fiber illuminator used for recording and reading high density optical information according to a near field recording (NFR) scheme, a method of fabricating the optical fiber illuminator, and an optical recording head and recording apparatus having the optical fiber illuminator. The optical fiber illuminator includes: an optical fiber having a core upon which light is incident and a clad that surrounds the core, one end of the optical fiber having a mirror formed in an inclined manner; and a lens formed on an outer surface of the optical fiber for focusing light reflected by the mirror. The optical fiber illuminator has an improved optical arrangement for optical illumination and detection, it is easy to manufacture, its optical input is easy to control, and it can be readily provided in an array form. When an array type optical recording and reading apparatus having an optical recording head and multiple aperture probes adopts the optical fiber illuminator, the resulting simple arrangement and compact size enables size reduction of the overall apparatus, a signal to noise ratio is high, and high density optical information can be recorded and reproduced at an extremely high rate.
Abstract:
An apparatus capable of tracking a sample surface level in a z direction and oscillating a cantilever at resonant frequency by using a frequency separation scheme in non-contact mode and method thereof. The inventive apparatus includes a sensing unit for sensing a sample surface; a frequency transforming unit for transforming the sensed signal; a frequency combining unit for combining signals; and an actuating unit for actuating the sensing unit.
Abstract:
Provided is an optical fiber illuminator used for recording and reading high density optical information according to a near field recording (NFR) scheme, a method of fabricating the optical fiber illuminator, and an optical recording head and recording apparatus having the optical fiber illuminator. The optical fiber illuminator includes: an optical fiber having a core upon which light is incident and a clad that surrounds the core, one end of the optical fiber having a mirror formed in an inclined manner; and a lens formed on an outer surface of the optical fiber for focusing light reflected by the mirror. The optical fiber illuminator has an improved optical arrangement for optical illumination and detection, it is easy to manufacture, its optical input is easy to control, and it can be readily provided in an array form. When an array type optical recording and reading apparatus having an optical recording head and multiple aperture probes adopts the optical fiber illuminator, the resulting simple arrangement and compact size enables size reduction of the overall apparatus, a signal to noise ratio is high, and high density optical information can be recorded and reproduced at an extremely high rate.
Abstract:
Provided is a method of fabricating a near-field optical probe adapted to a near-field scanning optical microscopy and a near-field information storage device, in which a cantilever and an optical tip are provided in one body and the optical tip is arranged to face the upper portion of the substrate. High-concentrated boron ions are implanted into an uppermost silicon layer of a silicon on insulator (SOI) substrate, and a silicon layer into which boron ions are implanted while the silicon inside the tip is etched to form the hole to act as an etch stop layer, thereby easily removing the silicon inside the tip even with the cantilever exposed, and simplifying the process due to the simultaneous fabrication of the cantilever and the tip.
Abstract:
A method of fabricating an electronic device using nanowires, minimizing the number of E-beam processing steps and thus improving a yield, includes the steps of: forming electrodes on a substrate; depositing a plurality of nanowires on the substrate including the electrodes; capturing an image of the substrate including the nanowires and the electrodes; drawing virtual connection lines for connecting the nanowires with the electrodes on the image using an electrode pattern simulated through a computer program, after capturing the image; coating an E-beam photoresist on the substrate; removing the photoresist from regions corresponding to the virtual connection lines and the electrode pattern using E-beam lithography; depositing a metal layer on the substrate after removing the photoresist from the regions of the virtual connection lines; and removing remaining photoresist from the substrate using a lift-off process.
Abstract:
Provided is a method of fabricating a nano-wire array, including the steps of: depositing a nano-wire solution, which contains nano-wires, on a substrate; forming a first etch region in a stripe shape on the substrate and then patterning the nano-wires; forming drain and source electrode lines parallel to each other with the patterned nano-wires interposed therebetween; forming a plurality of drain electrodes which have one end connected to the drain electrode line and contact at least one of the nano-wires, and forming a plurality of source electrodes, which have one end connected to the source electrode line and contact the nano-wires that contact the drain electrodes; forming a second etch region between pairs of the drain and source electrodes so as to prevent electrical contacts between the pairs of the drain and source electrodes; forming an insulating layer on the substrate; and forming a gate electrode between the drain and source electrodes contacting the nano-wires on the insulating layer. Accordingly, even in an unparallel structure of nano-wires to electrode lines, a large scale nano-wire array is practicable and applicable to an integrated circuit or display unit with nano-wire alignment difficulty, as well as to device applications using flexible substrates.
Abstract:
Provided are an apparatus for collecting environmental data and a method of monitoring an environment in real time. The apparatus for collecting environmental data includes a receiver for receiving an environmental data collection command from outside, a headset controller for interpreting the environmental data collection command received from the receiver, and distinguishing an audio signal received from outside from the environmental data collection command, the environment sensor unit for collecting environmental data according to the environmental data collection command interpreted from the headset controller, and a transmitter for transmitting the environmental data collected by the environment sensor unit.
Abstract:
Provided are an apparatus for collecting environmental data and a method of monitoring an environment in real time. The apparatus for collecting environmental data includes a receiver for receiving an environmental data collection command from outside, a headset controller for interpreting the environmental data collection command received from the receiver, and distinguishing an audio signal received from outside from the environmental data collection command, the environment sensor unit for collecting environmental data according to the environmental data collection command interpreted from the headset controller, and a transmitter for transmitting the environmental data collected by the environment sensor unit.
Abstract:
Provided is an optical microscope system for detecting nanowires to allow for use of an existing optical microscope in fabricating an electronic device having the nanowires and including: a light source for emitting light to provide the light to a nanowire sample; a rotational polarizer provided on a path of the light emitted from the light source for polarizing the light; an optical microscope for detecting a nanowire image using light that is polarized by the rotational polarizer and incident on the nanowire sample; a CCD camera provided in a region of the optical microscope for photographing and storing the nanowire image detected by the optical microscope; and a data processor for performing Fast Fourier Transform (FFT) on the nanowire image stored in the CCD camera. Intensity of reflected light varies, due to optical anisotropy of the nanowires, along a polarizing orientation of light incident on the nanowires.