Abstract:
PURPOSE: An inverter, an NAND gate, and an NOR gate are provided to provide a digital logic gate driven in low consumption power equal to power in a CMOS(Complementary Metal-Oxide Semiconductor) circuit by controlling the flow of a current according to an input and output signal. CONSTITUTION: An inverter comprises a pull-up part(210), a pull down part(220), and a pull up drive part(230). The pull-up part is composed of a second TFT(Thin Film Transistor) outputting a first power supply voltage to an output terminal according to a voltage applied to a gate. The pull down part is composed of a fifth TFT outputting a ground voltage to the output terminal according to the input signal voltage applied to the gate. The pull up drive part applies a second power supply voltage or the ground voltage to the gage in a second TFT according to the input signal.
Abstract:
본 발명의 필드프로그래머블 게이트 어레이의 프로그래머블 논리 블록은 전원에 연결된 풀업용 액세스 트랜지스터를 포함한다. 풀업용 트랜지스터에는 업 상변화 메모리 소자가 연결된다. 업 상변화 메모리 소자에 연결된 다운 상변화 메모리 소자가 연결된다. 업 상변화 메모리 소자 및 다운 상변화 메모리 소자 사이에는 출력 단자가 위치한다. 다운 상변화 메모리 소자에는 풀다운용 액세스 트랜지스터가 연결된다. 업 상변화 메모리 소자 및 다운 상변화 메모리 소자의 저항값을 개별적으로 프로그래밍할 수 있다.
Abstract:
PURPOSE: A memory cell and a memory device using the same are provided to improve stability by preventing an electrode from being floated in a memory array area. CONSTITUTION: A ferroelectric transistor(110) is provided. A plurality of switching devices(111,112,113) are electrically combined with the ferroelectric transistor. A plurality of control lines transmit each control signal for controlling a plurality of switching device to each switching device. The plurality of switching devices are individually controlled based on each control signal to prevent each electrode of the ferroelectric transistor from being floated.
Abstract:
PURPOSE: A charge injection nonvolatile flash memory thin-film transistor is provided to improve the efficiency of an erase operation by depositing additional charge implantation film into a memory device. CONSTITUTION: In a charge injection nonvolatile flash memory thin-film transistor, a source and a drain electrode(200) are separated from each other on a substrate. A semiconductor channel layer(300) covers a part of the source and drain electrodes. A dielectric layer(400) covers the exposed portion of the source electrode and drain electrode and the semiconductor channel layer. An additional semiconductor layer(700) is formed on the dielectric layer. A gate electrode(800) is formed on the additional semiconductor layer.
Abstract:
본 발명의 비휘발성 프로그래머블 스위치 소자는 반도체 기판 상에 형성된 제1 전극과, 제1 전극 상에서 제1 전극의 일부를 노출하는 포어를 갖는 절연층과 및 포어 측면에 형성된 발열 전극을 포함한다. 제1 전극과 연결되고 포어 내에 형성되면서 발열 전극과 접촉하는 상변화층이 형성되어 있다. 상변화층과 연결된 제2 전극과, 발열 전극의 일측부와 연결된 제3 전극과, 발열 전극의 타측부와 연결된 제4 전극이 형성되어 있다.
Abstract:
본 발명의 상변화 메모리 소자를 이용한 비휘발성 프로그래머블 스위치 소자는 기판, 상기 기판 상에 형성되고, 복수의 단자를 구비하는 제 1 금속 전극층, 상기 기판의 상부에서 상기 제 1 금속 전극층의 단자를 연결하는 형태로 형성되고, 자기 발열형 채널 구조로 구성되는 상변화 재료층, 상기 제 1 금속 전극층 및 상기 상변화 재료층 상부에 형성된 절연층, 상기 제 1 금속 전극층의 상부에 형성된 비아 홀, 그리고 상기 비아 홀을 매립하는 형태로 형성된 제 2 금속 전극층을 포함한다. 따라서, 별도의 발열 전극을 사용하지 않고 상변화 물질 자체의 저항에 따른 발열 현상을 이용하여 메모리 동작을 수행함으로써, 금속 전극의 열전도에 따른 열손실을 최소화하여 스위치 소자의 소비전력을 감소시킬 수 있다. 프로그래머블, 스위치, 상변화, 비휘발성 메모리, 재구성형 LSI
Abstract:
PURPOSE: A programmable logic block of an FPGA using a phase-change memory device is provided to improve the performance of an operation by programming resistance of a phase change memory device individually. CONSTITUTION: An access transistor(Mu) for pull-up is connected to a power. An up phase change memory device(Ru) is connected to a transistor for pull-up. The phase change memory device(Rd) is connected to an up-phase change memory device. An output terminal is located between the up-phase change memory device and a down-phase change memory device. The access transistor(Md) for the full down is connected to the down-phase change memory device. The resistance of the up-phase change memory device and the down-phase change memory device is individually programmed.
Abstract:
PURPOSE: A nonvolatility programmable switch device using a phase change memory device and a manufacturing method thereof are provided to reduce a miniaturization of a device and a consumption power by providing 4 terminal type device structure with easily dividing a write and a reading. CONSTITUTION: A semiconductor film layer(140) is formed on a first metal electrode layer(120). An insulator film layer is formed on the semiconductor film layer. The insulator thin film layer includes a pore region(220) exposing a part of the semiconductor film layer. A reaction material layer(240) fills in the pore region of the insulator film layer. A second metal electrode layer(260) is formed on upper part of the reaction material layer. A phase change operational layer(280) is formed by a solid-state reaction with reacting the reaction material layer and the semiconductor film layer.
Abstract:
PURPOSE: A method for preparing a ZTO thin film, a thin film transistor using the same and method for preparing the thin film transistor are provided increase the uniformity of a device by using an amorphous ZTO thin film as a channel layer. CONSTITUTION: In a method for preparing a ZTO thin film, a thin film transistor using the same and method for preparing the thin film transistor. The ZTO thin film is processed under 150- 450°C. An atomic ratio of the zinc is 4:1 or 2:1 at a deposition temperature less than 300°C and it is 4:1 to 1:4 under at a deposition temperature of 300 - 450°C. A source electrode, a drain electrode, a channel layer, a gate isolation layer, and a gate electrode are formed on the substrate.
Abstract:
A phase change memory device and a manufacturing method thereof for increasing operation stability and reliability are provided to increase the phase change memory device and distribution character of the set state resistance value. A phase change memory device comprises a phase change material layer(22). The phase change material layer is comprised of the germanium-antimony-tellurium system. The composition of the antimony added to the Ge2Sb2+xTe5 comprising the phase change material layer to the excess of quantity is 0.12~0.32. As to the Ge2Sb2+xTe5 comprising the phase change material layer, the structure of the crystalline state is comprised of the hcp single phase.