Abstract:
A method and an apparatus for measuring the performance parameter of an LSP(Label Switch Path) using an OAM(Operation and Maintenance) performance monitoring packet in an MPLS(Multi Protocol Label Switching) network are provided to calculates the value of an SLA(Service Level Agreement) performance parameter by calculating the packet loss rate of an LSP using the Tx counter field of an MPLS OAM packet and the packet delay and jitter of the LSP using the time stamp field of the MPLS OAM packet. A line interface unit for MPLS OAM packet processing consists of a packet transceiver part(710), a frame multiplexing/demultiplexing part(720), a network processor part(730) and a switch fabric interface part(740). The packet transceiver part(710) converts a plurality of data packets and OAM packets, which are optical signals, into electrical signals. The frame multiplexing/demultiplexing part(720) multiplexes the electrical data and OAM frames inputted from the packet transceiver part(710) and transfers them to the network processor part(730). Also the frame multiplexing/demultiplexing part(720) demultiplexes a plurality of packets, processed through the network processor part(730), and transfers them to the packet transceiver part(710). The network processor part(730) classifies inputted frames into data packets and OAM packets and processes them. The switch fabric interface part(740) delivers generic data packets to another line interface unit, based on forwarding information.
Abstract:
본 발명은 칩과 이를 이용한 칩 스택 및 그 제조방법에 관한 것으로, 웨이퍼상에 형성된 적어도 하나 이상의 패드와 상기 패드의 저면이 노출되도록 상기 웨이퍼를 관통하는 비아홀에 상기 웨이퍼의 저면으로부터 일정한 두께까지 돌출되도록 형성된 금속층을 포함하는 복수개의 칩이 적층되되, 상기 각 칩의 패드와 금속층이 서로 마주보도록 접합되어 적층함으로써, 칩의 제조공정이 간편해지고 칩의 성능을 향상시켜줄 뿐만 아니라 칩 스택 시 풋 프린트(foot print)가 작아지는 효과가 있다. 칩 스택, 웨이퍼, 패드, 비아홀, 플립칩, 범프, 풋 프린트
Abstract:
이종 접합 쌍극자 트랜지스터의 제조 방법에서, 소자 분리 영역을 정의하기 전에 식각이 용이한 제1 유전체층이 기판 전면에 증착된다. 그리고 제1 유전체층과 부컬렉터층이 식각된 후에 상대적으로 식각이 어렵거나 식각 속도가 느린 제2 유전체층이 기판 전면에 증착된다. 이후, 관통구가 형성된 후 제1 및 제2 유전체층의 식각 특성의 차이를 이용하여 제1 유전체층을 제거한다. 이와 같이 하면, 화합물 반도체와 유전체 절연막(제2 유전체층)의 계면에서 발생하는 전력 이득의 감소를 제거할 수 있다.
Abstract:
1. 청구범위에 기재된 발명이 속한 기술분야 본 발명은, 분산된 어플리케이션 서버 환경에서 저장소 공유를 통한 어플리케이션 다중 배포 방법 및 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체에 관한 것임. 2. 발명이 해결하려고 하는 기술적 과제 본 발명은, 분산된 어플리케이션 서버 환경에서 같은 그룹 내의 서버들에 어플리케이션을 배포함에 있어서, 같은 그룹내의 서버들이 저장소를 공유하도록 하여 공유저장소로부터 어플리케이션을 각 서버들에 다중 배포하는 어플리케이션 다중 배포 방법 및 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체를 제공하는데 그 목적이 있음. 3. 해결방법의 요지 본 발명은, 분산된 어플리케이션 서버에 적용되는 저장소 공유를 통한 어플리케이션 다중 배포 방법에 있어서, 외부의 배포 툴로부터 배포 준비 요청에 따라 공유저장소에 대해 어플리케이션 쓰기 금지가 설정되어 있는지를 검사하는 검사 단계; 상기 검사 단계의 검사 결과, 상기 어플리케이션 쓰기 금지가 설정되어 있지 않으면, 상기 공유저장소에 어플리케이션 쓰기 금지를 설정하고, 어플리케이션을 상기 배포 툴로부터 상기 공유저장소로 다운로드하는 제 1 다운로드 단계; 상기 검사 단계의 검사 결과, 상기 공유저장소에 어플리케이션 쓰기 금지가 설정되어 있으면 대기하는 대기 단계; 상기 대기 단계의 대기 중에 어플리케이션 쓰기 금지가 해제되면, 상기 공유저장소에 어플리케이션 쓰기 금지를 설정하고, 어플리케이션을 상기 배포 툴로부터 상기 공유저장소로 다운로드하는 제 2 다운로드 단계; 및 상기 다운로드가 완료됨에 따라 상기 공유저장소에 대한 쓰기 금지를 해제하고, 상기 공유저장소를 공유하는 모든 어플리케이션 서버들에게 상기 어플리케이션을 다중 배포하는 다중 배포 단계를 포함함. 4. 발명의 중요한 용도 본 발명은, 다수의 서버들에 어플리케이션을 다중 배포할 때 이용됨.
Abstract:
PURPOSE: A mobile application server for supporting various wireless terminals is provided to convert an HTTP mobile application request into a mobile request, and to execute a mobile application by parsing the mobile request, then to transmit executed results to a terminal, thereby reducing cost of wireless Internet service application development and maintenance. CONSTITUTION: A mobile request generator(20) generates a mobile request. A mobile engine(30) calls a handler for executing a mobile application, executes contents, and transmits the contents to a mobile terminal. A Java view handler(40) searches the mobile application corresponding to the mobile request to execute the mobile application, and stores a mobile response. An MSP view handler(50) searches the mobile application corresponding to the mobile request to execute the mobile application, and stores a mobile response. A profile manager(60) finds out information on the mobile terminal by parsing the mobile request. A session manager(70) generates a session for the mobile application and the mobile response, and manages the session. A component manager manages a life period of the mobile application. A contents converter(90) converts the contents, and transmits the contents to the mobile engine(30).
Abstract:
PURPOSE: A system for obtaining profile information of a mobile terminal is provided to manage device profile information and user profile information in a mobile terminal, and to transmit the managed information to a server through an SOAP(Simple Object Access Protocol) message, thereby enabling the server to generate proper contents based on the profile information extracted from the SOAP message and transmit the contents to the mobile terminal. CONSTITUTION: An SOAP plug-in module(10) mounted on a mobile terminal directly manages device profile information of the mobile terminal and user profile information showing user preference, converts a contents request into an SOAP message by adding the profile information, and transmits the SOAP message through a mobile communication network. The SOAP plug-in module(10) receives an SOAP response message to convert the message into an HTTP receiving message, and transmits the HTTP receiving message to a mobile browser. A mobile contents processing server(20) receives the SOAP message, analyzes the profile information extracted from the SOAP message, converts the analyzed information into contents, and converts the contents into the SOAP response message to transmit the message to the SOAP plug-in module(10).
Abstract:
PURPOSE: A system for converting and caching contents by grouping wireless terminal characteristics and a method therefor are provided to supply contents by using contents documents transmitted to terminals within the same group as an optional wireless terminal, and to generate a contents document to be transmitted to the wireless terminal, then to convert the document to store the converted document, thereby increasing a hit rate of a cache. CONSTITUTION: A group management module(310) groups at least more than one wireless terminal(100/1-100/n) to manage the grouped terminals(100/1-100/n) according to group identifiers generated by corresponding to profile information of the wireless terminals(100/1-100/n). A cache data unit(320) stores contents documents transmitted to the wireless terminals(100/1-100/n), contents identifier information of the contents documents, and group identifier information of the wireless terminals(100/1-100/n). A contents transceiver(200) extracts the profile information and the contents identifier information, receives the group identifier information, and delivers the group identifier information and the contents identifier information. A cache module(330) retrieves the contents documents, and transmits the contents documents to the wireless terminals(100/1-100/n).
Abstract:
PURPOSE: A method of forming a T-shaped gate is provided to improve step coverage and to form a fine gate so that the cross section area of the gate can be increased and the resistance of the gate can be reduced. CONSTITUTION: The first and second insulation layer(25,26) having different etch selectivity are sequentially formed on a semiconductor substrate(21). A hole having its upper diameter is larger than its lower diameter is formed by etching the first and second insulation layer. A third insulation layer(29) is formed to bury the hole and then a portion of the semiconductor substrate is exposed. By etch back of the third insulation layer, the third insulation layer remains on the hole. The first and second photoresist layer are sequentially formed on the entire surface. The first and second photoresist layer are patterned to expose the hole though an opening. A metal layer(34a) for gate is deposited and the first and second photoresist layer are removed to form a T-shaped gate.
Abstract:
PURPOSE: A method for fabricating a heterojunction bipolar transistor is provided to improve planarization and integration, by defining an isolation region through a selective ion implantation process, by growing a base layer and an emitter layer while using a dielectric layer as a mask and by simultaneously forming an emitter electrode, a base ohmic electrode and a collector ohmic electrode. CONSTITUTION: The isolation region(103) is defined in a semi-insulating compound semiconductor substrate(101). A sub collector layer(104) and a collector layer(105) are continuously grown on the compound semiconductor substrate. The collector layer is etched to define an intrinsic base region(106). The first dielectric layer is formed on a side surface and an upper surface of the collector layer. A base region is formed on the collector layer. The second dielectric layer is formed on the base layer(108) to expose the intrinsic base region. The emitter layer(110) and an emitter cap layer(111) are formed on the exposed base region. The first dielectric layer and the collector layer are etched to form an open region(112) for a collector electrode. A primary collector electrode(113) is formed in the open region for the collector electrode. The second dielectric layer is etched to expose an outer base region of the base region so that an open region(114) for a base electrode is formed. The emitter electrode(115), the base electrode(116) and a secondary collector electrode(117) are simultaneously formed on the emitter cap layer, the open region for the base electrode and the primary collector electrode.
Abstract:
PURPOSE: A fabrication method of chemical compound semiconductor devices is provided to easily form a micro-gate pattern by forming thermostable metal spacers using a light lithography and a lift-off method. CONSTITUTION: After defining an active region by etching a semiconductor substrate(12), a first recess is formed by selectively etching a GaAs ohmic layer(19). A thermostable metal(23) is deposited by a sputtering vacuum deposition, after forming a photoresist gate pattern by a light lithography and fining the gate pattern. An opening pattern of the thermostable metal(23) is formed by a lift-off. An opening of insulating layers is formed by sequentially etching a low temperature nitride(21) and an oxide(20). Thermostable metal spacers are formed by depositing and etching a thermostable thin film and a second recess is formed by etching a defined portion of an etch stopper using the metal spacers. After forming a metal electrode(26), an engraving photoresist pattern(27) is formed for formation of a head portion of a T-type gate electrode(28). The T-type gate electrode(28) is formed by plating a T-type gate pattern.