Abstract:
본발명은기존의주사전자현미경(SEM:Scanning Electron Microscope)에서출력되는 SEM 이미지가편향코일의임피던스성분으로인해주사신호의왜곡이심한상태에서 SEM 이미지가표출되는문제점을개선하고자, 주사파형제어부, 편향코일, 2차전자신호검출부, AD 컨버터부, DA 컨버터부, SEM 이미지제어부로이루어진주사파형제어장치가구성됨으로서, 해상도와실시간 SEM 이미지업데이트시간을고려한스캔파형의최적의주파수를 SEM 이미지제어부를통해설정할수 있고, 스캔신호에서왜곡이가장심한부분인하강후파형의상승이시작되는지점에서왜곡을최소화하기위해 B-Spline 곡선생성방법을이용하여상승시점전에시간을충분히확보함으로서파형의왜곡을최소화할수 있어, 기존에비해 10% 미만으로 SEM 이미지의왜곡을줄일수 있어, 고배율에서질 좋은 SEM 이미지를판독할수 있는 SEM 해상도증대를위한주사파형제어장치및 방법을제공하는데그 목적이있다.
Abstract:
PURPOSE: A sample chamber for a scanning electronic microscope is provided to rapidly and conveniently exchange samples by opening an inlet of the sample chamber using an automatic chamber door. CONSTITUTION: A sample chamber(30) for a scanning electronic microscope comprises a chamber door(100). An inlet(130) is formed on one surface of the sample chamber. The chamber door automatically opens and closes the inlet. The chamber door has a cylinder(110) and a piston(120). The cylinder is fixed to the sample chamber. The piston is moved by pressure supplied to the cylinder. One end of the piston is connected to the chamber door, and the inlet of the sample chamber is opened and closed.
Abstract:
PURPOSE: A refrigerated container for fermented foods is provided to uniformly maintain a constant temperature of the entire internal space of a container to be suitable for transporting Korean traditional fermented foods, fruits, and fresh foods. CONSTITUTION: A refrigerated container (10) for fermented foods comprises a container body (20), a cold air supply unit (30), and a cooling coil (40). The container body comprises an internal space for loading cargoes. The cold air supply unit is equipped on one side of the container body to supply cooled air into the container body.
Abstract:
PURPOSE: A multi-channel quartz crystal micro-balance having a partitioning groove is provided to reduce interferences that vibration generated by each electrode interferes to other adjacent electrodes. CONSTITUTION: A multi-channel quartz crystal micro-balance(100) having a partitioning groove(40) comprises a crystal substrate(10) and a plurality of electrodes. The crystal substrate consists of a quartz crystal. The electrodes consists of a first electrode(20) and a second electrode. The first electrode is arranged in a front surface of the quartz crystal. The second electrode is arranged in a rear surface of the crystal substrate to be faced to the first electrode. The crystal substrate is divided into a plurality of sensing areas by the partitioning groove concavely formed on a surface of the crystal substrate. Each electrode is respectively arranged in the plurality of sensing areas divided by the partitioning groove.
Abstract:
PURPOSE: An apparatus and a method for controlling a scanning waveform are provided to minimize distortion of a waveform by setting an optimum frequency of a scanning waveform through a SEM image control unit. CONSTITUTION: A scanning waveform control unit(100) generates a scanning waveform according to a frequency of a scanning waveform corresponding to resolution of an SEM image and a time for obtaining an SEM image. A deflection coil(200) is formed to convert the scanning waveform to an electron beam and to scan the electron beam on a surface of a sample. A second electronic signal detection unit(300) detects a second electronic signal emitted from the surface of the sample. An AD convertor unit(400) transmits with the SEM image to a controller. A DA converter unit converts a frequency of the scanning waveform to an analog signal and transmits the analog signal to the scanning waveform control unit.
Abstract:
PURPOSE: The nano stage of the electron beam lithography apparatus revises the deflection coil in the production of the micro pattern in the admissible distortion rate range. The micro pattern is created consecutively. CONSTITUTION: The sample(40) is included in the upper side of the stage(33). The stage unit(30) is formed in order to go in and out to the vacuum chamber. The stage unit rotates the stage the X, Y, Z shaft with movement. The electronic scanning unit injects the electronic beam on sample on the nano stage(100). Domain more than the admissible distortion rate of the deflection coil is corrected through the micro movement of the nano stage.
Abstract:
PURPOSE: A UV nano implant lithography device with a temperature control function and a temperature control method are provided to improve accuracy of a pattern by minimizing thermal expansion difference between a mold and a substrate due to heating of a polymer resin. CONSTITUTION: A thermocouple and a heating line are installed on a thermostat plate. A chamber(4) receives a loading plate, a thermostat plate, and a pressure unit in a receiving space which is opened through a door. A temperature sensor(5) is installed inside the chamber to measure an inner temperature of the chamber. An external air handing unit constantly maintains the inner temperature of the chamber by circulating the air inside a chamber. A control board controls the operation of the external air handing unit and controls the temperature of the thermostat plate based on temperature data measured by a thermo couple and a temperature sensor.
Abstract:
A broadband balun capable of improving integration by reducing the number of unit device and a manufacturing method thereof are provided to ideally maintain strength of a signal and a phase difference between balanced terminals by using a coupling of a resonator. A broadband balun comprises a first inductor(L1), a second inductor(L2), and a third inductor(L3). The first inductor is connected to an unbalanced terminal(P1). The second inductor and the third inductor are connected to balanced terminals(P2, P3). A direction of the first inductor is opposite direction of the second inductor, and is identical to direction of the third inductor. The first inductor, the second inductor, and the third inductor form a magnetic coupling. The balun is manufactured by a MMIC(Monolithic Microwave Integrated Circuit) technology or a LTCC(Low Temperature Co-fired Ceramic) technology.
Abstract:
본 발명은 다채널 수정 결정 미소 저울에 관한 것으로서, 수정 결정의 공진 특성을 이용하여 미소 질량을 측정할 수 있는 수정 결정 미소 저울에 있어서, 상기 수정 결정으로 이루어진 수정 기판; 상기 수정 기판의 앞면에 배치된 제1 전극과, 상기 수정 기판의 뒷면에 상기 제1 전극과 대향하도록 배치된 제2 전극이 쌍을 이루는 복수 쌍의 전극;을 구비하며, 상기 수정 기판은, 상기 수정 기판의 표면에 오목하게 형성된 구획홈에 의하여 복수 개의 센싱 영역으로 분리되며, 상기 각 쌍의 전극은, 상기 구획홈에 의하여 분리된 복수 개의 센싱 영역에 각각 배치되어 있는 것을 특징으로 한다. 본 발명에 따르면, 수정 기판의 표면에 오목하게 형성된 구획홈에 의하여 각 쌍의 전극이 서로 분리된 상태로 배치됨으로써, 각 전극에서 발생하는 진동이 주변의 다른 전극에 미치는 간섭을 감소시킬 수 있는 효과가 있다.