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    • 9. 发明授权
    • Semiconductor integrated circuit device and method of testing same
    • 半导体集成电路器件及其测试方法
    • US07965568B2
    • 2011-06-21
    • US12350546
    • 2009-01-08
    • Kenichi UshikoshiNobutoshi TsunesadaTsuyoshi HirakawaNoriaki Komatsu
    • Kenichi UshikoshiNobutoshi TsunesadaTsuyoshi HirakawaNoriaki Komatsu
    • G11C7/00
    • G11C29/14G11C11/401G11C29/12015G11C29/56012
    • A semiconductor integrated circuit device includes a first chip that is directly accessible from outside, a second chip that transmits and receives data to and from the first chip, the second chip being not directly accessible from outside, and a through circuit that is provided in the first chip and transmits first and second test signals input from an external device to the second chip, wherein the through circuit includes a first signal transmission path to generate a first signal by synchronizing the first test signal to a clock signal input from the external device and to output it to the second chip and a second signal transmission path to generate a second signal by synchronizing the second test signal to a test clock signal input from the external device and to output it to the second chip.
    • 半导体集成电路器件包括可从外部直接访问的第一芯片,向第一芯片发送数据和从第一芯片接收数据的第二芯片,第二芯片不能从外部直接访问;以及贯穿电路,其设置在 第一芯片,并将从外部设备输入的第一和第二测试信号传输到第二芯片,其中所述通过电路包括第一信号传输路径,以通过将所述第一测试信号与从所述外部设备输入的时钟信号同步来产生第一信号;以及 将其输出到第二芯片和第二信号传输路径,以通过将第二测试信号与从外部设备输入的测试时钟信号同步并将其输出到第二芯片来产生第二信号。