Reducing parasitic BJT effects in partially depleted SOI digital logic circuits

  • Authors:
  • Koushik K. Das;Ching-Te Chuang;Richard B. Brown

  • Affiliations:
  • IBM TJ Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, USA;IBM TJ Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, USA;College of Engineering, University of Utah, Salt Lake City, UT, USA

  • Venue:
  • Microelectronics Journal
  • Year:
  • 2008

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Abstract

This paper presents four new circuit techniques that reduce the parasitic bipolar junction transistor (BJT) effect in digital dynamic logic circuits in partially depleted silicon-on-insulator (PD-SOI) technology. Simulation results have shown the proposed schemes to be effective at various operating voltages. Fully functional test circuits, incorporating some of the proposed techniques, have been designed, fabricated and tested in a 130nm IBM PD-SOI technology. The measured silicon hardware data validate the simulation predictions and have demonstrated that the new techniques can be easily incorporated to improve the robustness of PD-SOI dynamic logic circuits.