Abstract:
A magnetic memory device is provided. Memory cells on a substrate and bit lines on the memory cells are provided. Each of the memory cells comprises: a free layer which is separated from free layers of adjacent memory cells by an interlayer insulating film on the substrate; a tunnel insulating film on the free layer; and a reference layer which is provided on the tunnel insulating layer and extends onto the free layers of the adjacent memory cells along the bit lines.
Abstract:
본 발명은 하이브리드 단말을 지원하는 이동 통신 시스템에서의 동기 획득 시간을 줄일 수 있는 시스템 시간 설정 방법 및 장치에 관한 것으로, 본 발명의 방법은 기지국으로부터 제어 패킷 신호를 수신하여 프리엠블을 검출하는 제 1과정과, 상기 검출된 프리엠블의 위치 정보를 저장하고, 이전 검출되어 저장된 프리엠블의 위치 정보를 근거로 올바른 프리엠블인지 확인하여 상기 프리엠블의 정보를 출력하는 제 2과정과, 초기 동기 획득 여부에 따라 상기 출력된 프리엠블의 정보의 이용 여부를 결정하는 제 3과정으로 이루어짐을 특징으로 한다. 본 발명의 장치는 초기 동기 획득 과정인 경우 기지국으로부터 제어 패킷 신호를 수신하여 프리엠블을 검출하는 검출기와, 상기 검출된 프리엠블의 위치 정보를 저장하고, 이전 검출되어 저장된 프리엠블의 위치 정보를 근거로 올바른 프리엠블인지 확인하여 상기 프리엠블의 정보를 출력하는 후처리부와, 초기 동기 획득 여부에 따라 상기 출력된 프리엠블의 정보의 이용 여부를 결정하는 다중화기를 포함함을 특징으로 한다. EV-DO, 하이브리드 단말, 제어 패킷
Abstract:
PURPOSE: A pattern formation method and a manufacturing method thereof using the same are provided to prevent the loss of an etching mask using a wet etching process and a dry etching process at the same time for forming a contact hole. CONSTITUTION: First line patterns(130) are formed on a film to be etched(105). First spacers(120) are formed in the first line pattern using a silicon oxide. An interval between the first line patterns is filled with the first spacers. A second line pattern(160) is extended to a second direction which is perpendicular to a first direction. The first spacers are eliminated through a wet etch process. The first line patterns and the second line pattern are formed using polysilicon. [Reference numerals] (AA) First direction; (BB) Second direction
Abstract:
An apparatus for heightening the stability of a system and a method thereof for heightening the stability of the system by setting up the performance level of the task considering the property of the mobile communications system are provided to reduce power by setting up capability performance. A workload of a task is measured according to a TWF(Task Workload Factor). A system call or a task event is generated. The number of performed tasks and TWF are determined. The workload corresponding to the determined TWF is obtained. The idle time for determining the performance level of the performed task is determined. The performance level of the performed task is determined. A main controller(140) is called by a hooking function when initiating a task in OS kernel(145).
Abstract:
A phase change memory device and a method for forming thereof are provided to reduce the contact area between a phase change material layer and a conductor connected to the phase change material layer in order to operate the phase change memory device at a low temperature. A phase change memory device comprises an insulating layer which is positioned on a substrate and has an opening; a phase change material layer(140) filling the opening. The phase change material layer includes a first part adjacent to the lateral and the bottom part of the opening; a second part which fills the opening and has different characteristic from the first part. The phase change material layer is formed through at least two deposition processes which are performed under the different situation.
Abstract:
A method and a system for handover in a mobile communication system are provided to enable a target ENB(Evolved Node B) to apply an optimized MCS(Modulation and Coding Scheme) for a UE(User Equipment) in initial scheduling immediately after the UE's handover by making the UE measure and transmit the CQI(Channel Quality Indicator) information of the target ENB when the UE executes a handover procedure. A UE measures the strength of a received signal(720), and transmits a measurement report message to a source ENB, including the measured received signal strength(725). Based on the received signal strength, the source ENB judges whether handover is required. If required, the source ENB executes a handover procedure with the UE(730). If the handover process is completed, the UE transmits a handover complete message to a target ENB. In this case, before transmitting the handover complete message, the UE measures the CQI information of the target ENB for each AMC(Adaptive Modulation and Coding) band(735). Then the UE transmits the handover complete message to the target ENB, including the measured CQI information(740). Based on the CQI information contained in the handover complete message, the target ENB executes resource allocation for the UE(745).
Abstract:
A data transmission device in a mobile communication system and a method thereof are provided to offer normal receiving packet information of each RLC(Radio Link Control) entity receiving side to a correspondent RLC entity transmission end, in case of RLC reset message operation, thereby enabling packet transmission without loss. When an RLC reset condition is recognized, an RLC reset message is generated and transmitted to a receiving node(501-505). If an RLC reset ACK(Acknowledgement) message is received from the receiving node, an RLC PDU(Packet Data Unit) is reassembled by referring to a sequence number included in the RLC reset ACK message, and a reassembled SDU(Service Data Unit) is transmitted to an RLC SDU buffer(507-515). An RLC PDU buffer is cleared, and parameters and a timer are initialized(517).
Abstract:
향상된 특성을 갖는 강유전체 캐패시터 및 이를 이용한 반도체 장치의 제조 방법이 개시된다. 기판 상에 제1 및 제2 하부 전극막을 포함하는 하부 전극층을 형성한 후, 하부 전극층 상에 강유전체층을 형성한다. 강유전체층 상에 상부 전극층을 형성한 다음, 상부 전극층 상에 제1 하드 마스크 및 제2 하드 마스크를 구비하는 하드 마스크 구조물을 형성한다. 하드 마스크 구조물을 이용하여 상부 전극층, 강유전체층 및 하부 전극층을 식각하여, 기판 상에 하부 전극, 강유전체층 패턴 및 상부 전극을 형성한다. 강유전체층 패턴의 식각 손상에 기인하는 강유전체층 패턴의 열화를 방지하는 한편, 강유전체층 패턴의 유효 면적을 확장시켜 강유전체 캐패시터의 전기적 및 강유전적 특성을 개선할 수 있다.