A sub-1V bandgap voltage reference in 32nm FinFET technology

The bulk CMOS technology is expected to scale down to about 32nm node and likely the successor would be the FinFET. The FinFET is an ultra-thin body multi-gate MOS transistor with among other characteristics a much higher voltage gain compared to a conventional bulk MOS transistor [1]. Bandgap reference circuits cannot be directly ported from bulk CMOS technologies to SOI FinFET technologies, because both conventional diodes cannot be realized in thin SOI layers and also, area-efficient resistors are not readily available in processes with only metal(lic) gates. In this paper, a sub-1V bandgap reference circuit is implemented in a 32nm SOI FinFET technology, with an architecture that significantly reduces the required total resistance value.

[1]  A. Hikavyy,et al.  Highly manufacturable FinFETs with sub-10nm fin width and high aspect ratio fabricated with immersion lithography , 2007, 2007 IEEE Symposium on VLSI Technology.

[2]  J.Y.-C. Sun,et al.  CMOS-on-SOI ESD protection networks , 1996, 1996 Proceedings Electrical Overstress/Electrostatic Discharge Symposium.

[3]  T. R. Viswanathan,et al.  A CMOS bandgap reference without resistors , 2000, 2000 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.00CH37056).

[4]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[5]  F. Lombardi,et al.  A CMOS subbandgap reference circuit with 1-v power supply voltage , 2004, IEEE Journal of Solid-State Circuits.

[7]  G. Gildenblat,et al.  PSP-based compact FinFET model describing dc and RF measurements , 2006, 2006 International Electron Devices Meeting.

[8]  G. Knoblinger,et al.  Design and evaluation of basic analog circuits in an emerging MuGFET technology , 2005, 2005 IEEE International SOI Conference Proceedings.

[9]  E.C. Dijkmans.  Hearing instruments go digital , 1997, Proceedings of the 23rd European Solid-State Circuits Conference.

[10]  K. Sakui,et al.  A CMOS bandgap reference circuit with sub-1-V operation , 1999 .