Fast Pulse Driving of Ferroelectric SBT Capacitors in a Nonvolatile Latch

We demonstrate a fast shutdown and resumption of a logic circuit applied a nonvolatile latch having SrBi 2 (Ta,Nb) 2 O 9 (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.

[1]  M. J. E. Ulenaers,et al.  Nanosecond switching of thin ferroelectric films , 1991 .

[2]  Tadahiro Kuroda,et al.  Variable Threshold-Voltage CMOS Technology , 2000 .

[3]  Bishop Brock,et al.  Dynamic Power Management for Embedded Systems , 2003 .

[5]  Takayasu Sakurai,et al.  VTCMOS characteristics and its optimum conditions predicted by a compact analytical model , 2003, IEEE Trans. Very Large Scale Integr. Syst..

[7]  C. P. Ravikumar,et al.  Leakage power estimation for deep submicron circuits in an ASIC design environment , 2002, Proceedings of ASP-DAC/VLSI Design 2002. 7th Asia and South Pacific Design Automation Conference and 15h International Conference on VLSI Design.

[8]  T. Hanyu,et al.  Complementary ferroelectric-capacitor logic for low-power logic-in-memory VLSI , 2003, IEEE Journal of Solid-State Circuits.

[9]  Shin'ichiro Mutoh,et al.  1-V power supply high-speed digital circuit technology with multithreshold-voltage CMOS , 1995, IEEE J. Solid State Circuits.

[10]  K. Remack,et al.  Reliability properties of low-voltage ferroelectric capacitors and memory arrays , 2004, IEEE Transactions on Device and Materials Reliability.

[11]  F. Sano,et al.  A 300 MIPS/W RISC core processor with variable supply-voltage scheme in variable threshold-voltage CMOS , 1997, Proceedings of CICC 97 - Custom Integrated Circuits Conference.

[12]  HIDEMI TAKASU,et al.  Ferroelectric Non-Volatile Logic Devices , 2003 .