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    • 10. 发明授权
    • Semiconductor device
    • 半导体器件
    • US07375574B2
    • 2008-05-20
    • US11202279
    • 2005-08-12
    • Yusuke KannoHiroyuki MizunoKazumasa Yanagisawa
    • Yusuke KannoHiroyuki MizunoKazumasa Yanagisawa
    • H03L5/00
    • H03K5/1534H03K3/356113H03K19/018521
    • A semiconductor device includes a differential level converter circuit that receives a first signal and outputs a second signal of greater amplitude. The differential level converter has a first MISFET pair for receiving the first signal, a second MISFET pair for enhancing the withstand voltage of the first MISFET pair, and a third MISFET pair with cross-coupled gates for latching the second signal from output. The film thickness of the gate insulating films of the second and third MISFET pairs is made thicker than that of the first MISFET pair, and the threshold voltages of the first and second MISFET pairs are made smaller than that of the third MISFET pair. This level converter circuit operates at high speed even if there is a large difference in the signal amplitude before and after level conversion.
    • 半导体器件包括差分电平转换器电路,其接收第一信号并输出​​更大振幅的第二信号。 差分电平转换器具有用于接收第一信号的第一MISFET对,用于增强第一MISFET对的耐受电压的第二MISFET对以及具有用于锁存来自输出的第二信号的交叉耦合门的第三MISFET对。 使第二MISFET对和第三MISFET对的栅极绝缘膜的膜厚比第一MISFET对的膜厚薄,并且使第一MISFET对和第二MISFET对的阈值电压小于第三MISFET对的阈值电压。 即使在电平转换之前和之后的信号幅度有较大的差异,该电平转换器电路也以高速工作。