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InGaAs/Si Heterojunction Tunneling Field-Effect Transistor on Silicon Substrate

Sung YUN WOO, Young JUN YOON, Jae HWA SEO, Gwan MIN YOO, Seongjae CHO, In MAN KANG

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Summary :

In this work, a gate-all-around (GAA) tunneling field-effect transistor (TFET) with InGaAs/Si heterojunction for high-performance and low-standby power operations is studied. Gallium (Ga) compositon (x) in In1-xGaxAs source substantially affects the physical properties related with device performances including lattice constant, bandgap energy, effective tunneling mass, channel mobility, and others. Thus, it is worthy investigating the effect of Ga fraction on performances of the proposed heterojunction TFET. For this goal, the device design and its performance evaluation are carried out by technology computer-aided design (TCAD). Direct-current (DC) performances are investigated in terms of on-state current (Ion), off-state current (Ioff), current ratio (Ion/Ioff), and subthreshold swing (S). Furthermore, it is shown that the device with an n-type Si insertion layer between source and channel demonstrates the enhanced DC characteristics.

Publication
IEICE TRANSACTIONS on Electronics Vol.E97-C No.7 pp.677-682
Publication Date
2014/07/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E97.C.677
Type of Manuscript
Special Section PAPER (Special Section on Recent Advances in Simulation Techniques and Their Applications for Electronics)
Category

Authors

Sung YUN WOO
  Kyungpook National University
Young JUN YOON
  Kyungpook National University
Jae HWA SEO
  Kyungpook National University
Gwan MIN YOO
  Kyungpook National University
Seongjae CHO
  Gachon University
In MAN KANG
  Kyungpook National University

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