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    • 7. 发明申请
    • Enhancing Memory Yield Through Memory Subsystem Repair
    • 通过内存子系统修复提高内存收益
    • US20140169113A1
    • 2014-06-19
    • US13910582
    • 2013-06-05
    • LSI Corporation
    • Ting ZhouRoss A. KohlerRuggero CastagnettiMichael G. YeeConcetta Riccobene
    • G11C29/00G11C29/04
    • G11C29/82G11C29/814
    • A memory system and a memory repair method for the memory system are disclosed. The method includes the steps of: organizing at least one repair block to serve as a shared repair resource for the plurality of memory blocks in the tiled memory; identifying a defective memory unit among the plurality of memory blocks in the tiled memory; identifying a replacement unit in the repair block for replacement of the defective memory unit; retrieving a set of memory blocks from the plurality of memory blocks in the tiled memory in response to a data access request, wherein the set of memory blocks retrieved containing the defective memory unit; retrieving the replacement unit from the repair block in response to the data access request; and replacing the defective memory unit in the set of memory blocks with the replacement unit.
    • 公开了一种用于存储器系统的存储器系统和存储器修复方法。 该方法包括以下步骤:组织至少一个修复块以用作平铺存储器中的多个存储器块的共享修复资源; 识别所述平铺存储器中的所述多个存储器块中的有缺陷的存储器单元; 识别所述修理块中的替换单元以更换所述有缺陷的存储器单元; 响应于数据访问请求从所述平铺存储器中的所述多个存储器块中检索一组存储器块,其中所述包含所述有缺陷的存储器单元的所述存储器块集合; 响应于数据访问请求从修复块检索替换单元; 并用更换单元替换该组存储器块中的有缺陷的存储器单元。
    • 8. 发明申请
    • Circuit and method for testing embedded DRAM circuits through direct access mode
    • 通过直接访问模式测试嵌入式DRAM电路的电路和方法
    • US20040049720A1
    • 2004-03-11
    • US10241032
    • 2002-09-11
    • Infineon Technologies North America Corp.
    • Thomas Boehler
    • G11C029/00
    • G11C29/48G11C29/14G11C29/72G11C29/814
    • A circuit and method for testing an eDRAM through a test controller with direct access (DA) mode logic is provided. The circuit and method of the present invention allows the testing of eDRAMs with a conventional memory tester. The present invention provides a semiconductor device including an embedded dynamic random access memory (eDRAM) for storing data, the eDRAM including a plurality of memory cells; and a test controller for testing the plurality of memory cells to determine if the cells are defective, the test controller including built-in self-test (BIST) logic circuitry for performing tests and for interfacing to a logic tester; and direct access mode logic circuitry for interfacing the eDRAM with an external memory tester. The test controller further comprises a multiplexer for multiplexing data, commands, and addresses from the BIST logic circuitry and the direct access mode logic circuitry to the eDRAM.
    • 提供了通过具有直接访问(DA)模式逻辑的测试控制器测试eDRAM的电路和方法。 本发明的电路和方法允许用常规的记忆测试仪测试eDRAM。 本发明提供一种包括用于存储数据的嵌入式动态随机存取存储器(eDRAM)的半导体器件,所述eDRAM包括多个存储器单元; 以及用于测试所述多个存储器单元以确定所述单元是否有缺陷的测试控制器,所述测试控制器包括用于执行测试和用于与逻辑测试仪接口的内置自测试(BIST)逻辑电路; 以及用于将eDRAM与外部存储器测试器接口的直接访问模式逻辑电路。 测试控制器还包括多路复用器,用于将数据,命令和地址从BIST逻辑电路和直接访问模式逻辑电路复用到eDRAM。
    • 10. 发明授权
    • Real time correction of bit failure in resistive memory
    • 电阻存储器中位故障的实时校正
    • US09552244B2
    • 2017-01-24
    • US14150559
    • 2014-01-08
    • QUALCOMM Incorporated
    • Taehyun KimSungryul KimJung Pill Kim
    • G06F11/07H03M13/05G06F11/10G11C29/00G11C29/04
    • G06F11/0766G06F11/1008G11C29/808G11C29/814G11C2029/0411H03M13/05
    • Systems and methods for correcting bit failures in a resistive memory device include dividing the memory device into a first memory bank and a second memory bank. A first single bit repair (SBR) array is stored in the second memory bank, wherein the first SBR array is configured to store a first indication of a failure in a first failed bit in a first row of the first memory bank. The first memory bank and the first SBR array are configured to be accessed in parallel during a memory access operation. Similarly, a second SBR array stored in the first memory bank can store indications of failures of bits in the second memory bank, wherein the second SBR array and the second memory bank can be accessed in parallel. Thus, bit failures in the first and second memory banks can be corrected in real time.
    • 用于校正电阻存储器件中的位故障的系统和方法包括将存储器件划分成第一存储体和第二存储体。 第一单位修复(SBR)阵列存储在第二存储体中,其中第一SBR阵列被配置为在第一存储体的第一行中的第一故障位中存储故障的第一指示。 第一存储器组和第一SBR阵列被配置为在存储器访问操作期间并行访问。 类似地,存储在第一存储体中的第二SBR阵列可以存储位在第二存储体中的故障的指示,其中可以并行地访问第二SBR阵列和第二存储体。 因此,可以实时地校正第一和第二存储体中的位故障。