Abstract:
A texture cache, a 3D graphics system with the same, and a method of controlling the 3D graphics system are provided to effectively cache texture data in various formats without increasing a hardware size. A texture cache(80) includes a data memory(860) for storing texture data, a tag memory(870) for storing the address of the texture data, a texture analyzer(810) for analyzing characteristic information of the texture data, and a controller(820) for controlling a line size of the data memory and allocating an address storage region of the tag memory in response to the analysis result. A 3D graphics system includes a main memory for storing a plurality of textures, a texture cache for copying a part of the plurality of textures and storing the copied textures, and a texture processor(70) for performing texture filtering using the textures stored in the cache memory. The texture processor generates the addresses of textures to be used in the texture filtering and characteristic information of the textures.
Abstract:
PURPOSE: A wafer position sensing device of semiconductor production equipment is provided to reduce the number of wafer position sensors by installing a sensor for detecting a position of a wafer at a robot blade. CONSTITUTION: A wafer sensor(54) is installed at a center part of a robot blade on which a wafer is loaded, in order to sense the presence of the wafer. First and second wafer position sensors(56,58) are installed at end parts of the robot blade on which the wafer of the robot blade is normally loaded, in order to sense the position of the wafer. A controller(60) is used for receiving a wafer sensing signal from the wafer sensor(54) and wafer position sensing signals from the first and second wafer position sensors(56,58), and an interlock signal when the wafer is loaded in an abnormal state.
Abstract:
The present invention relates to a method for operating a pixel cache. The operating method of the present invention includes storing image plane data of an image stored in a main memory into one linefill unit among a plurality of linefill units; and outputting the image plane data stored in the linefill unit to a processor. The linefill unit is a processing unit stored and outputted in the pixel cache at a time. An image plane includes two or more pixels in a row direction and two or more pixels in a column direction, and has the same size with the linefill unit.
Abstract:
A nonvolatile memory device is provided to enhance erase efficiency by using at least one or more nano tubes. A nonvolatile memory device comprises a floating gate on a semiconductor substrate(200), a control gate(250) on the floating gate, an insulating layer(240) interposed between the floating gate and the control gate, and at least one or more nano tubes. The nano tubes(230) are formed in the insulating layer. The nonvolatile memory device further includes source/drain regions, wherein the source/drain regions are formed in the substrate. A carbon nano tube is used as the nano tube. The carbon nano tube is formed by performing a catalyst growth using Co or Ni as a catalyst.
Abstract:
A memory controller having graphic processing function that includes a graphic processing unit operating in response to a selection signal from a master, and a memory interface for storing outputs of the graphic processing unit in an external memory at and receiving graphic data from the external memory to provide the graphic data to the graphic processing unit.
Abstract:
본 발명은 2중 밀봉 구조를 갖는 반도체 제조 장치에 관한 것으로, 공정챔버의 내부와 외부를 밀봉하기 위해 사용되던 구리 가스킷을 열팽창 계수가 작고 내구력이 강한 재질의 원형 링으로 구성하고, 또한 공정챔버의 하단부에서 벨로우즈를 포함한 구동부재 사이를 원통 형상의 스토퍼로 완전 밀봉하여 벨로우즈와 스토퍼에 의해 2중 밀봉 구조를 갖도록 구성함으로써, 누설(Leak)이 발생되는 것을 2중으로 방지할 수 있기 때문에 히터 블록을 자주 교체하지 않아도 되는 장점이 있고, 또한 안정적인 공정 상태에서 공정이 진행할 수 있는 장점이 있다.
Abstract:
PURPOSE: A memory controller for controlling the refresh period of a memory and a method for controlling the refresh period are provided to improve the operational performance by setting a refresh period appropriate to the operational state and temperature of the current memory. CONSTITUTION: A method for controlling the refresh period of a memory includes the steps of: (a) generating(110) the temperature measurement command to measure the operational temperature of the memory by a predetermined time; (b) receiving(120) the measured temperature in response to the temperature measurement command; (c) going back to the step (a) if the measured temperature is equal to the reference temperature; and (d) applying the refresh command to the memory in response to the changed refresh period.
Abstract:
A method for manufacturing a semiconductor device is provided. A contact mold film is formed on a substrate, and first holes penetrating the contact mold film are formed. A wiring mold film is formed on the contact mold film to form a first air gap inside of the first holes. Trenches are formed which expose the first holes inside the wiring mold film. After forming the trenches, second holes are formed continuously etching the wiring mold film which is disposed inside of the first holes and defines the first air gap. Wirings and contacts connected to each wiring are formed inside of the trenches and the second holes.