Abstract:
본 발명의 실시예에 따른 비휘발성 메모리 소자를 제공한다. 비휘발성 메모리 소자는 제 1 면 및 이에 대향하는 제 2 면을 가지고, 보론이 도핑된 실리콘층, 상기 실리콘층의 제 1 면 상에 제공되고, 보론이 도핑된 실리콘 산화막 및 상기 실리콘 산화막 상에 상부 전극을 포함하고, 상기 실리콘층은 상기 실리콘 산화막이 접하는 상면이 (111)면이다.
Abstract:
PURPOSE: A vertical takeoff and landing aircraft using a gyroscopic principle is provided to rapidly and elaborately control and to stably keep the posture of an aircraft with a gyroscope. CONSTITUTION: A vertical takeoff and landing aircraft using a gyroscopic principle comprises a rotation body(40) and wings(30). A first engine(50) is mounted on the rotation body to rotate the rotation body through the first engine and served as a gyroscope. The wings are mounted on the rotation body to be rotated with the rotation body, thereby generating upward force.
Abstract:
PURPOSE: A manufacturing method of a transparent electrode of a carbon nanotube is provided to secure the transparency compared conductivity of the transparent electrode by effectively remove impurities. CONSTITUTION: A manufacturing method of a transparent electrode comprises the following steps: obtaining a carbon nanotube transparent electrode; heat-processing the carbon nanotube transparent electrode under the oxygen condition; and acid treating the transparent electrode. The heat-processing is performed either 2~30 minutes in 400~550 deg C among air, or 5~20 minutes in 480~520 deg C among the air.
Abstract:
PURPOSE: A remotely powered underwater thruster, a carrier using the same, and an operation method thereof are provided to reduce the weight and size of a thruster by placing a power source outside of the thruster. CONSTITUTION: A remotely powered underwater thruster comprises a body part(10) and a heating part(20). The body part is hollow and has a steam injection hole(30) on one end. The heating part is equipped inside the body part. A power source is installed separately outside of the body part and delivers energy to the heating part.
Abstract:
A method of controlling the density and conductance of carbon nanotubes on a substrate is provided to increase the density and conductance of a carbon nanotube by a spin coating method which designs material with a wet-chemical method by atom or molecular unit. A method of controlling the density and conductance of carbon nanobutes on a substrate comprises the steps of: spin-coating, on a substrate, the suspension in which carbon nontube is dispersed(S10); drying the spin-coated carbon nanotube suspension on the substrate(S20); measuring the density of the carbon nanotube and comparing the density with a requested density(S30); repeating the above spin-coating process by the time when the requested density is obtained.
Abstract:
A method for directly controlling carbon nanotubes by external frictional force is provided to require no chemical treatment of a substrate or carbon nanotubes, and to be applicable to a wide-size substrate. A method for directly controlling carbon nanotubes by external frictional force includes the steps of: (a) distributing a carbon nanotube-containing mixture solution on a substrate(10), and drying the solution; (b) disposing patterns(20) on necessary parts of the substrate to fix one ends of the carbon nanotubes(1) placed under the patterns; and (c) softly stroking the substrate in a desired direction using a frictional member(30). The unnecessary carbon nanotubes that are not fixed to the patterns are removed and the carbon nanotubes of which one ends are fixed to the patterns are aligned in one direction. Further, the frictional member is sponge, cotton swab or nonwoven fabric.
Abstract:
A scanning ion conductance microscope with a multipipet is provided to obtain a wide area of images at a time by detecting ion currents in barrels with the multipipet, thereby improving speed, resolution, and a signal to noise ratio. A scanning ion conductance microscope includes a pipet(1). The pipet detects change of ion current flowing through a pipet hole to convert into an image. A pair of pipets with pipet electrodes(12) constitute a multipipet. The ion currents flowing through the pipet holes of the multipipet are compared with each other to detect a sample. The scanning ion conductance microscope further includes a noise reference pipet(10). The noise reference pipet, installed at a flat part of the sample, measures the ion current of the flat part to detect noise, and extracts the noise included in the ion current detected by the multipipet.
Abstract:
본 발명은 공기부양식 운송시스템에 관한 것으로, 압축공기 분사부가 형성된 소정 길이의 궤도와; 압축공기 분사부에 연결되고 압축공기를 공급하는 압축공기 발생장치와; 궤도에 이동가능하게 결합된 운반체와; 궤도에 설치되어 운반체의 위치를 감지하는 위치감지센서와; 위치감지센서에 연결되어 압축공기 분사부 및 압축공기 발생장치의 작동을 제어하는 제어부를 포함하여 이루어진다. 공기, 부양, 운송, 압축, 분사, 노즐
Abstract:
A controlled growth method of a nanotube or nanowire using catalytic particles and a nanotube or nanowire manufactured thereby are provided to obtain a nanotube or nanowire having a desired diameter, position and length and having controlled shape or properties. A controlled growth method of a nanotube or nanowire from catalytic particles with specific sizes comprises the steps of: (S100) placing catalytic particles with specific sizes on a predetermined position of a substrate; and (S150) growing a single nanotube or nanowire from a top or bottom of the catalytic particles. Particularly, the catalytic particles comprises at least one of iron, cobalt, nickel, gold, platinum, palladium and copper and has a diameter ranging from 3 nm to 50 nm. In the method, the catalytic particles are preferably grown by arc discharge or thermal chemical vapor deposition(TCVD).
Abstract:
본 발명은 금속, 반도체, 절연체의 패턴 형성 방법에 있어서, 종래의 방법으로 선폭이 10 nm 이상인 패턴(202)을 만드는 단계(S302), 및 상기 패턴(202)을 물리적, 기계적 가공으로 깍아서 크기를 줄이는 단계, 상기 패턴(202)을 화학적 방법으로 식각함으로써 상기 패턴(202)의 크기를 줄이는 단계 및 상기 패턴(202)을 재료의 가장 외부로부터 분해하여 상기 패턴(202)의 크기를 줄이는 단계들 중에서 선택된 하나의 단계(S306)를 포함하는 것을 특징으로 하는 금속, 반도체, 절연체 패턴의 선폭과 크기를 줄이는 방법에 관한 것이다. 금속, 반도체, 절연체, 패턴, 식각, 이온빔 식각, 화학적 식각, 전기분해