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    • 3. 发明公开
    • Method and apparatus for latent fault memory scrub in memory intensive computer hardware
    • 一种用于在存储器中除去潜误差从该计算机硬件强烈依赖的方法和装置
    • EP1860558A2
    • 2007-11-28
    • EP07108806.6
    • 2007-05-24
    • Honeywell International Inc.
    • Thompson, Steven R.
    • G06F11/10
    • G11C29/36G06F11/106G11C2029/0401G11C2029/0409G11C2029/4002
    • A method for operating a memory checker (100) in a command monitoring architecture comprising at least two processing lanes (102, 104) comprises a first step of receiving a command to activate a first test mode. The first test mode comprises an initial step of inverting data read from a memory (112, 114) and inverting data written to the memory (112, 114). Next, it is determined if there is a match between data associated with a first processing lane (102) and retrieved by a second checker logic (120) associated with a second processing lane (104) and with data associated with a second processing lane (104) and retrieved by a first checker logic (116) associated with the first processing lane (102). A failure in the memory (112, 114) is determined if there is no match.
    • 一种用于在命令监视体系结构包括至少两个处理通道(102,104)操作存储器检验器(100)方法包括:接收命令,以激活第一测试模式的第一步骤。 第一测试模式反转从存储器(112,114)读出的数据和反相写入到存储器(112,114)的数据的初始步骤的包括。 接着,它是确定的开采,如果有通过与第二处理通道(104)中并用(与第二处理通道相关联的数据相关联的第二检查器逻辑(120)与第一处理通道(102)相关联,并且检索到的数据之间的匹配 104),并通过与所述第一处理通道(102)相关联的第一检查器逻辑(116)检索。 如果不存在匹配在存储器(112,114)的故障被确定。
    • 8. 发明公开
    • PARALLEL TEST CIRCUIT AND METHOD AND SEMICONDUCTOR DEVICE
    • 巴勒斯坦公民组织(UNDERLEL-PRÜFSCHALTUNGUND VERFAHREN UND HALBLEITERANORDNUNG)
    • EP2088442A1
    • 2009-08-12
    • EP07831134.7
    • 2007-11-02
    • NEC Corporation
    • MIZUNO, Masayuki
    • G01R31/28
    • G01R31/31703G11C29/26G11C2029/2602G11C2029/4002G11C2029/5602
    • A test circuit and a test method, in which the number of input/output ports needed for testing is not increased even if the number of devices under test, subjected to parallel testing, is increased. The test circuit includes a first transfer circuit, a second transfer circuit and comparators 14-1, 14-2 and so on, and performs parallel testing of a plurality of chips under test 10-1, 10-2, 10-3 and so on. The first transfer circuit includes flip-flops 11-1, 11-2, 11-3 and so on. A data pattern from a tester 1 is supplied to the initial stage chip under test 10-1. To the remaining chips under test 10-2, 10-3 and so on, output data from the corresponding stages of the first transfer circuit are supplied. The second transfer circuit sequentially transfers an output of the initial stage chip under test 10-1, as an expected value pattern, in response to clock cycles. The comparator compares output data of the chip under test with an expected value pattern from the corresponding stage of the second transfer circuit.
    • 测试电路和测试方法,其中即使受到并行测试的受测设备的数量增加,测试所需的输入/输出端口的数量也不会增加。 测试电路包括第一传输电路,第二传输电路和比较器14-1,14-2等,并且对被测试的多个芯片10-1,10-2,10-3等进行并行测试 上。 第一传送电路包括触发器11-1,11-2,11-3等。 来自测试器1的数据模式被提供给被测试的初始级芯片10-1。 对于被测试的其余芯片10-2,10-3等,提供来自第一传送电路的相应级的输出数据。 第二传输电路响应于时钟周期顺序地将待测试的初始级芯片的输出作为期望值模式传送。 比较器将待测芯片的输出数据与来自第二传输电路的相应级的期望值模式进行比较。