Abstract:
본 발명은 가변 저항 물질을 포함하는 비휘발성 메모리 소자에 관한 것이다. 비휘발성 메모리 소자에 있어서, 가변 저항 물질을 포함하는 비휘발성 메모리 소자에 있어서, 하부 전극; 상기 하부 전극 상에 산화물로 형성된 버퍼층; 상기 버퍼층 상에 형성되며 가변 저항 특성을 지닌 산화층; 및 상기 산화층 상에 형성된 상부 전극;을 포함하는 가변 저항 메모리 소자를 제공한다.
Abstract:
A variable resistance random access memory is provided to use a low-cost metal as a lower electrode by forming an n+ interface layer between the lower electrode and an n buffer layer and to decrease a manufacturing cost. A variable resistance random access memory includes a lower electrode(20), an n+ interface layer(22), a buffer layer(24), an oxide layer(26), and an upper electrode(28). The n+ interface layer is formed on the lower electrode. The buffer layer is formed on the n+ interface layer. The oxide layer is formed on the buffer layer and has a variable resistance. The upper electrode is formed on the oxide film. The oxide film is made of a p-type transition metal oxide.
Abstract:
An NVM(non-volatile memory) device is provided to supply the NVM device with a stabilized operation characteristic by forming a buffer layer between an upper electrode and a memory node. A first oxide layer(22) is formed on a lower electrode(20). A second oxide layer(24) is formed on the first oxide layer, having a variable resistance characteristic. A buffer layer(26) is formed on the second oxide layer. An upper electrode(28) is formed on the buffer layer. The second oxide layer is formed of a p-type transition metal oxide. The buffer layer is formed of a p-type oxide.
Abstract:
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.
Abstract:
반도체 장치는 기판의 제1 및 제2 영역들 상에 각각 형성된 제1 및 제2 게이트 구조물들, 제1 및 제2 게이트 구조물들에 인접한 기판 상부에 각각 형성된 제1 및 제2 불순물 영역들, 제2 불순물 영역 상에 형성된 페르미(Fermi) 준위 고정막, 제1 불순물 영역 및 페르미 준위 고정막 상에 각각 형성된 제1 및 제2 금속 실리사이드 막들 및 제1 및 제2 금속 실리사이드 막들 상에 각각 형성된 제1 및 제2 콘택 플러그들을 포함하며, 페르미 준위 고정막은 제2 금속 실리사이드 막의 페르미 준위를 특정 에너지 준위로 고정시킨다.
Abstract:
A junction field effect thin film transistor is provided to utilize an interface as a channel by adjusting a size of a depletion layer of a p-n junction, thereby increasing carrier mobility. A first gate electrode(200a) is formed on a substrate, and a first conductive-type first gate semiconductor pattern(250a) is formed on the first gate electrode. A second conductive-type semiconductor channel layer(300) is formed on the substrate and the first conductive-type first gate semiconductor pattern. Source and drain electrodes(400a,400b) are formed on the second conductive-type semiconductor pattern, and are located at both sides of the first conductive-type gate semiconductor pattern. A first conductive-type second gate semiconductor pattern(250b) is formed on a portion of the second conductive-type semiconductor channel layer between the source electrode and the drain electrode, and a second gate electrode(200b) is formed on the first conductive-type second gate semiconductor pattern.
Abstract:
A variable resistance memory device having a buffer layer which is formed on a bottom electrode is provided to be used as a cross type memory device having stable switching property as a simple structure, and to be able to provide a non volatile memory device by forming a buffer layer between a top electrode and a memory mode. A non volatile memory device including a variable resistance material includes a bottom electrode(20), a buffer layer(22), an oxide layer(24) and an top electrode(26). The buffer layer is formed with an oxidized substance on the bottom electrode. The oxide layer having a variable resistance property is formed on the buffer layer. The top electrode is formed on the oxide layer.