Analog circuit design methodology utilizing a structure of thin BOX FDSOI

Kota Chubachi*, Shinichi Nishizawa, Kazuhito Ito

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper proposes to utilize a structure of thin BOX FDSOI in analog circuit design. The thin BOX layer is utilized to create area efficient capacitors. The design experiment shows that the combination of the thin BOX layer capacitor and a metal fringe capacitor improves the capacitance by 92% in comparison with the metal fringe capacitor only. Another advantage of the thin BOX FDSOI technology is the high controllability of the threshold voltages of transistors. As a demonstration of utilizing the advantage in analog circuit design, we designed a PMOS-type Dickson charge pump with dynamic threshold voltage control. The designed charge pump achieves 5.7 times larger output current and 3.5 times higher energy efficiency than a conventional charge pump.

Original languageEnglish
Article number20181136
Journalieice electronics express
Volume16
Issue number5
DOIs
Publication statusPublished - 2019
Externally publishedYes

Keywords

  • Body bias control
  • Charge pump
  • Thin BOX FDSOI

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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