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    • 10. 发明专利
    • Delay measuring instrument, and semiconductor device
    • 延迟测量仪器和半导体器件
    • JP2008305947A
    • 2008-12-18
    • JP2007151388
    • 2007-06-07
    • Panasonic Corpパナソニック株式会社
    • KAWAMURA MAKOTO
    • H01L21/822G01R31/28H01L21/66H01L21/82H01L27/04
    • H03K5/159G01R31/31725G04F10/00
    • PROBLEM TO BE SOLVED: To provide a delay measuring instrument which can measure a delay value in a semiconductor device, suppresses an increase in circuit scale, and generates less noise.
      SOLUTION: The delay measuring instrument A disposed in the semiconductor device includes a flip-flop (storage element) 1 which takes an input data value in at an edge of a clock CK and holds it, a delay element 2 connected to an inverted output terminal NQ of the flip-flop 1, a selector 3 which selects and outputs one of an external input data value Din and a delay output data value DL of the delay element 2 to the flip-flop 1, and a measurement result output terminal O1 connected to a non-inverted output terminal of the flip-flop 1. When a selection signal SE of the selector 2 is "1", the flip-flop 1 inputs the external input data value Din and takes it in at a leading edge of the clock CK. When the selection signal SE is "0", on the other hand, the delay output data DL is input and taken in at a leading edge of the clock CK.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供可以测量半导体器件中的延迟值的延迟测量仪器,抑制电路规模的增加,并且产生更少的噪声。 解决方案:设置在半导体器件中的延迟测量仪器A包括:触发器(存储元件)1,其在时钟CK的边缘处获取输入数据值并保持它;延迟元件2连接到 触发器1的反相输出端子NQ,选择器3,其向触发器1选择并输出延迟元件2的外部输入数据值Din和延迟输出数据值DL中的一个,以及测量结果输出 端子O1连接到触发器1的非反相输出端。当选择器2的选择信号SE为“1”时,触发器1输入外部输入数据值Din并将其置于前导 时钟CK的边沿。 另一方面,当选择信号SE为“0”时,在时钟CK的前沿输入延迟输出数据DL。 版权所有(C)2009,JPO&INPIT