Abstract:
본 발명은 특권 모드와 비특권 모드의 서로 다른 수행 모드를 제공하는 운영 체제를 구비한 시스템에서 인터럽트를 처리하기 위한 방법에 있어서, 상기 비특권 모드에서 동작하는 임의의 프로세스로에서 소정의 인터럽트를 처리하기 위한 인터럽트 서비스 루틴(ISR)을 등록하는 과정과, 상기 인터럽트 서비스 루틴(ISR)에 대응되는 인터럽트 발생시 이전 프로세스 작업을 일시 중지하고 상기 등록된 인터럽트 서비스 루틴(ISR)을 수행하도록 하는 과정을 포함함을 특징으로 한다.
Abstract:
PURPOSE: A flash memory device having a column pre-decoder capable of selecting overall column select transistors and a stress testing method thereof are provided to reduce stress testing time by selecting overall column select transistors and applying a high-voltage to each gate of the transistors to perform a stress testing. CONSTITUTION: A buffer(610) inputs an overall column select signal(AllColSel). Decoders (620,630) decode an output of the buffer(610) and column addresses(ColAdd(0),ColAdd(1),ColAdd(2),ColAdd(3)). Level shifters(202,204,206,208,212,214,216,218) vary a voltage level of each of column select signals(ColSel1(0),ColSel1(1),ColSel1(2),ColSel1(3),ColSel2(0),ColSel2(1),ColSel2(2),ColSel2(3)) connected to gates of column select transistors in response to outputs of the decoders(620,630). The column select signals(ColSel1(0),ColSel1(1),ColSel1(2),ColSel1(3),ColSel2(0),ColSel2(1),ColSel2(2),ColSel2(3)) are applied in a high-voltage in response to the overall column select signal(AllColSel) upon a stress testing.
Abstract:
A nonvolatile semiconductor memory device has a special test mode and circuitry for counting its own fail bits. During the test mode, test data is stored in the memory, and also in a special expected data buffer. The test data stored in the memory cells are then compared to that stored in the expected data buffer. Where there is no correspondence, fail bits are detected. The lack of correspondence is registered, counted, and output to a data output buffer block.
Abstract:
A flash memory management method is provided. According to the method, when a request to write the predetermined data to a page to which data has been written is made, the predetermined data is written to a log block corresponding to a data block containing the page. When a request to write the predetermined data to the page again is received, the predetermined data is written to an empty free page in the log block. Even if the same page is requested to be continuously written to, the management method allows this to be processed in one log block, thereby improving the effectiveness in the use of flash memory resources.
Abstract:
Disclosed is a non-volatile semiconductor memory device including a circuit for controlling potentials of select lines and word lines in accordance with bit line setup, string select line setup, program and discharge periods of a program cycle. The control circuit biases a string select line to a power supply voltage during the bit line setup period in the program cycle, and to a voltage between the power supply voltage and ground voltage during the string select line setup and the program periods. According to the string select line control scheme, program disturb due to a noise voltage induced at a string select line when a program voltage is applied to a word line adjacent to the string select line is prevented.
Abstract:
PURPOSE: A NAND flash memory device and a method for programming are provided to minimize a substrate voltage bouncing to prevent an under program and a program disturbance. CONSTITUTION: A nonvolatile memory device includes a plurality of memory blocks, a plurality of block selecting control circuits(20_1-20_i), and a controller(100). The plurality of memory blocks includes a plurality of memory cells which each are arranged with a matrix form of rows and columns. The plurality of block selecting control circuits correspond to the memory blocks and respectively connect the rows of a corresponding memory block to corresponding driving lines during a program cycle. The controller controls the block selecting control circuits so that each row of the memory blocks is connected to the corresponding driving lines during a bit line set up period and a recovery period. Each row of the memory blocks is set up with a predetermined voltage during the bit line set up period of the program cycle.
Abstract:
종형의 튜브 하측에서 다수개의 웨이퍼를 장착한 보트의 하측 부위를 받쳐 지지하며 승· 하강시켜 투입하거나 빼내도록 하는 반도체설비의 보트 지지장치에 관한 것이다. 본 발명은 상측 중심 부위에 다수개의 웨이퍼가 장착되는 보트를 받쳐 지지하며, 제조설비의 일측에 승· 하강 가능하게 설치되어 상기 보트를 승· 하강시키도록 하는 플랜지를 포함한 반도체설비의 보트 지지장치에 있어서, 상기 플랜지에 보트의 수평 상태를 확인하도록 하는 수평상태 감지장치가 착탈 가능하게 설치됨을 특징으로 한다. 따라서, 본 발명에 의하면, 보트의 수평상태를 수시로 확인하게 됨에 따라 공정가스가 웨이퍼상에서 균일하게 반응하게 되고, 승· 하강시 웨이퍼의 이탈을 예방하게 됨에 따라 웨이퍼의 손상 및 깨짐 현상을 방지하게 되는 효과가 있다.