摘要:
An optical element and an information storage device including the same. The optical element may include an optical waveguide structure for transforming circularly polarized light into plasmon and transmitting the plasmon. The optical waveguide structure may emit a circularly polarized plasmonic field. The optical element may be used in an information storage device. For example, the information storage device may include a recording medium and a recording element for recording information on the recording medium, and the recording element may include the optical element. The information may be recorded on the recording medium by using the circularly polarized plasmonic field generated by the optical element.
摘要:
Semiconductor devices including variable resistance materials and methods of operating the semiconductor devices. The semiconductor devices use variable resistance materials with resistances that vary according to applied voltages as channel layers.
摘要:
A nonvolatile memory cell may include a bidirectional switch having a first threshold voltage when a forward current is applied to the bidirectional switch and a second threshold voltage when a reverse current is applied to the bidirectional switch; and a variable resistor connected to the bidirectional switch in series. A state of resistance of the variable resistor may be controlled according to voltage applied to the variable resistor. A sum of a magnitude of the first threshold voltage and a magnitude of the second threshold voltage may be greater than a write voltage that is used to perform a write operation on the variable resistor.
摘要:
A high-density data storage medium, a method of manufacturing the data storage medium, a high-density data storage apparatus, and methods of writing data on, and reading and erasing data from the data storage medium by using the data storage apparatus are provided. The data storage medium includes a lower electrode, an insulation layer deposited on the lower electrode, a photoelectron emission layer deposited on the insulation layer and having a plurality of protrusions from which photoelectrons are emitted due to collisions between the protrusions and photons, and a dielectric layer deposited on the photoelectron emission layer and storing the photoelectrons emitted from the photoelectron emission layer. The data storage apparatus includes a stage supporting a data storage medium, which includes a lower electrode, an insulation layer deposited on the lower electrode, a photoelectron emission layer deposited on the insulation layer and having a plurality of protrusions from which photoelectrons are emitted due to collisions between the protrusions and photons, and a dielectric layer deposited on the photoelectron emission layer and storing the photoelectrons emitted from the photoelectron emission layer, a scanner driving the stage, a probe placed over the data storage medium and including a tip forming an electric field with the data storage medium and a cantilever supporting the tip placed at its one end so as to maintain a predetermined distance between the data storage medium and the tip, a circuit unit applying a driving signal, a data write signal, and a data erase signal to the scanner and the probe and detecting a data read signal, and a light source irradiating light on the data storage medium.
摘要:
A method of manufacturing a memory device includes defining a field region and an active region in a substrate, forming a field oxide layer on the field region, forming an insulating layer on the active region, patterning the insulating layer to form first and second bit lines separated from and parallel to each other on the active region, forming a memory element for storing data in a nonvolatile state, wherein the memory element passes across the first and second bit lines, and forming a word line on the insulating layer and the memory element.
摘要:
A method of manufacturing a nanochannel-array and a method of fabricating a nanodot using the nanochannel-array are provided. The nanochannel-array manufacturing method includes: performing first anodizing to form a first alumina layer having a channel array formed by a plurality of cavities on an aluminum substrate; etching the first alumina layer to a predetermined depth and forming a plurality of concave portions on the aluminum substrate, wherein each concave portion corresponds to the bottom of each channel of the first alumina layer; and performing second anodizing to form a second alumina layer having an array of a plurality of channels corresponding to the plurality of concave portions on the aluminum substrate. The array manufacturing method makes it possible to obtain finely ordered cavities and form nanoscale dots using the cavities.
摘要:
An electrode structure having at least two oxide layers that more reliably switch and operate without the use of additional devices and a non-volatile memory device having the same are provided. The electrode structure may include a lower electrode, a first oxide layer formed on the lower electrode, a second oxide layer formed on the first oxide layer and an upper electrode formed on the second oxide layer wherein at least one of the first and second oxide layers may be formed of a resistance-varying material. The first oxide layer may be formed of an oxide having a variable oxidation state.
摘要:
A storage node having a metal-insulator-metal structure, a non-volatile memory device including a storage node having a metal-insulator-metal (MIM) structure and a method of operating the same are provided. The memory device may include a switching element and a storage node connected to the switching element. The storage node may include a first metal layer, a first insulating layer and a second metal layer, sequentially stacked, and a nano-structure layer. The storage node may further include a second insulating layer and a third metal layer. The nano-structure layer, which is used as a carbon nano-structure layer, may include at least one fullerene layer.
摘要:
An emitter for an electron-beam projection lithography (EPL) system and a manufacturing method therefor are provided. The electron-beam emitter includes a substrate, an insulating layer overlying the substrate, and a gate electrode including a base layer formed on top of the insulating layer to a uniform thickness and an electron-beam blocking layer formed on the base layer in a predetermined pattern. The manufacturing method includes steps of: preparing a substrate; forming an insulating layer on the substrate; forming a base layer of a gate electrode by depositing a conductive metal on the insulating layer to a predetermined thickness; forming an electron-beam blocking layer of the gate electrode by depositing a metal capable of anodizing on the base layer to a predetermined thickness; and patterning the electron-beam blocking layer in a predetermined pattern by anodizing. The emitter provides a uniform electric field within the insulating layer and simplify the manufacturing method therefor.
摘要:
Provided is a method of manufacturing a memory device that comprises a gate including uniformly distributed silicon nano dots. The method includes forming a gate on a substrate, the gate including, stacked in sequence an insulating film, nano dot layers separated by a predetermined lateral distance, and a conductive film pattern, forming a source region and a drain region contacting the gate in the substrate, and forming first and second metal layers on the source region and the drain region, respectively.