会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 93. 发明授权
    • Prioritizing the repair of faults in a semiconductor memory device
    • 对半导体存储器件中的故障进行优先排序
    • US5940335A
    • 1999-08-17
    • US122426
    • 1998-07-24
    • Toshiaki Kirihata
    • Toshiaki Kirihata
    • G11C29/04G11C29/00G11C7/00
    • G11C29/804G11C29/808
    • A variable size redundancy replacement (VSRR) arrangement for making a memory fault-tolerant. A redundancy array supporting the memory includes a plurality of variable size redundancy units, each of which encompasses a plurality of redundancy elements. The redundancy units, used for repairing faults in the memory, are independently controlled. All the redundancy elements within a repair unit are preferably replaced simultaneously. The redundancy elements in the redundancy unit are controlled by decoding address lines. The variable size that characterizes this configuration makes it possible to choose the most effective redundancy unit, and in particular, the one most closely fitting the size of the cluster of failures to be replaced. This configuration significantly reduces the overhead created by added redundancy elements and control circuitry, while improving the access speed and reducing power consumption. Finally, a fault-tolerant block redundancy controlled by a priority decoder makes it possible to use VSRR units for repairing faults in the block redundancy prior to its use for replacing a defective block within the memory.
    • 用于使存储器容错的可变大小冗余替换(VSRR)布置。 支持存储器的冗余阵列包括多个可变大小的冗余单元,每个冗余单元包括多个冗余元件。 用于修复存储器故障的冗余单元是独立控制的。 维修单元内的所有冗余元件优选同时更换。 冗余单元中的冗余元件通过解码地址线来控制。 表征此配置的可变大小使得可以选择最有效的冗余单元,特别是最接近要替换的故障群集大小的冗余单元。 这种配置可显着降低由添加的冗余元件和控制电路产生的开销,同时提高访问速度并降低功耗。 最后,由优先级解码器控制的容错块冗余使得可以使用VSRR单元来修复块冗余中的故障,在其用于替换存储器内的有缺陷块之前。
    • 95. 发明授权
    • Built in self test with memory
    • 内置自检
    • US5764655A
    • 1998-06-09
    • US887374
    • 1997-07-02
    • Toshiaki KirihataChristopher D. Wait
    • Toshiaki KirihataChristopher D. Wait
    • G01R31/28G01R31/3185G06F11/273G11C29/12H01L21/66G06F11/00
    • G06F11/2635G01R31/318505G01R31/31702
    • An integrated circuit chip and an electronic system are disclosed, each incorporating a self-test system. The integrated circuit chip includes capability for Built In Self Test (BIST) and a non-volatile memory where the BIST may be self-programmable. The electronic system comprises, an integrated circuit chip which includes on the chip Built In Self Test (BIST) and a non-volatile memory, together with an off-chip test target. The integrated circuit chip and the electronic system are particularly useful for simplifying the testing of electronic products both in manufacturing and in the field, and are even more particularly useful in eliminating the need for large, complex, high speed testers in the manufacturing environment, substituting instead a simple power chuck to plug the product into.
    • 公开了一种集成电路芯片和电子系统,其中包括自检系统。 集成电路芯片包括内置自检(BIST)和非易失性存储器,其中BIST可以是自编程的。 电子系统包括集成电路芯片,其包括芯片内置自测(BIST)和非易失性存储器,以及片外测试目标。 集成电路芯片和电子系统对于简化制造和现场的电子产品的测试特别有用,并且甚至更具体地用于消除在制造环境中对大型,复杂的高速测试仪的需要,代替 而是一个简单的动力卡盘来插入产品。
    • 96. 发明授权
    • Latched row decoder for a random access memory
    • 用于随机存取存储器的锁存行解码器
    • US5615164A
    • 1997-03-25
    • US477063
    • 1995-06-07
    • Toshiaki KirihataHing Wong
    • Toshiaki KirihataHing Wong
    • G11C11/413G11C8/10G11C11/401G11C11/407G11C11/408G11C29/02G11C29/06G11C29/12G11C29/34G11C29/50G11C8/00
    • G11C29/025G11C29/02G11C29/34G11C29/50G11C8/10G11C11/401
    • A latched row decoder for a Random Access Memory (RAM). The Decoder includes a set-reset latch that is set when addressed and remains set until reset by a PRE signal; address select logic; a reset device; and gated word line drives. The latch, when set, enables four word line drivers that are driven individually depending on two row address bits. During test, latched decoders may be selected sequentially and not reset, leaving drivers enabled until a test is complete. Thus some or all word lines may be driven simultaneously during test. A RAM including the latched decoder of the present invention has a normal random access mode and at least 4 test modes. The test modes are: Long t.sub.RAS word line disturb mode; toggled word line disturb mode; transfer gate stress mode; and a stress test mode.
    • 用于随机存取存储器(RAM)的锁存行解码器。 解码器包括设置复位锁存器,其在寻址时被置位并保持置位,直到由PRE信号复位; 地址选择逻辑; 复位装置; 和门控驱动器。 当锁存器置位时,可以根据两个行地址位单独驱动四个字线驱动器。 在测试期间,锁存解码器可以顺序选择并且不复位,使驱动器启用,直到测试完成。 因此,在测试期间可以同时驱动一些或所有字线。 包括本发明的锁存解码器的RAM具有正常的随机存取模式和至少4个测试模式。 测试模式为:长tRAS字线干扰模式; 切换字线干扰模式; 传输门应力模式; 和压力测试模式。