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[Author] Shinzo KOYAMA(1hit)

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  • Fast Pulse Driving of Ferroelectric SBT Capacitors in a Nonvolatile Latch

    Shinzo KOYAMA  Yoshihisa KATO  Takayoshi YAMADA  Yasuhiro SHIMADA  

     
    LETTER-Integrated Electronics

      Vol:
    E89-C No:9
      Page(s):
    1368-1372

    We demonstrate a fast shutdown and resumption of a logic circuit applied a nonvolatile latch having SrBi2(Ta,Nb)2O9 (SBT) capacitors without a higher drive voltage than a logic voltage of 1.8 V. By assigning an individual drive circuit of the SBT capacitors to the nonvolatile latch not sharing a drive circuit with multiple nonvolatile latches, the fast shutdown and resumption of a logic circuit were completed in 7.5 ns at a drive voltage of 1.3 V. The fast shutdown and resumption without an addition of a high drive voltage to a logic circuit meets a requirement from power-saving applications of system LSIs fabricated in CMOS technologies at 90-nm and below.