High Sensitivity Non-split Drain MAGFET for Wireless Sensor Networks

Authors

  • Rattapong Nakachai Department of Electronics, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand https://orcid.org/0000-0002-9114-3730
  • Amporn Poyai Thai Microelectronics Center, Design & Engineering Consulting Service Center (DECC), National Science and Technology Development Agency (NSTDA), Thailand
  • Toempong Phetchakul Department of Electronics, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand

DOI:

https://doi.org/10.13052/jmm1550-4646.16123

Keywords:

Non-split drain, MAGFET, TCAD, magnetic sensor, Lorentz’s force

Abstract

The non-split drain MAGFET proposed in this paper is aspossess an ideal, highest sensitivity in the same type of device, current mode for low power, and low voltage that can be embedded within a system for wireless sensor networks application. It is a split-drain MAGFET that is designed to have no gap between drains so that there is no loss from the gap. There are two split contacts in one drain to represent the split drains for current difference that induced from due to magnetic field. The relative sensitivity comparison among all the gaps (3, 2, 1, and 0 μm) with all aspect ratio of width (W)/length (L) (L/W = 1, 0.6, and 0.2) at biased current 0.25 mA shows that the zero gap or the non-split drain MAGFET structure gives the highest sensitivity. The sensitivities of the non-split drain at the aspect ratios L/W = 1, 0.6, and 0.2 in this study are 0.0595, 0.0479, and 0.0231 T−1, respectively. It is proved that the gap is not necessary for the MAGFET. It is a new, smart way to design the MAGFET for the highest sensitivity and gap lossless for modern sensor applications.

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Author Biographies

Rattapong Nakachai, Department of Electronics, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand

Rattapong Nakachai received his B.S. degree in electrical engineering from the Kasetsart University, Thailand in 2003, and the M.S. degree in electronics engineering from the King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand in 2008. His research interest areas are electronics engineering, computer programming, and semiconductor devices and sensors.

Amporn Poyai, Thai Microelectronics Center, Design & Engineering Consulting Service Center (DECC), National Science and Technology Development Agency (NSTDA), Thailand

Amporn Poyai received his B.Sc. degree in physics from the Silpakorn University, Bangkok, Thailand in 1991, the M.S. degree in electrical engineering from the King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand in 1994, and the Ph.D. degree in electrical engineering from the Katholieke University of Leuven, Leuven, Belgium in 2002. His research is emphasized on design, simulation, fabrication and characterization of semiconductor device, microfabrication technology, and integrated circuits. He worked at the Thai Microelectronic Center (TMEC) and now he is currently working at the Design & Engineering Consulting Service Center (DECC) as part of the National Science and Technology Development Agency (NSTDA), Thailand.

Toempong Phetchakul, Department of Electronics, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand

Toempong Phetchakul received his B.S. degree in electronic engineering, and the M.S. degree in electrical engineering from the King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand, and the D.Eng. degree in solid state device engineering from the Tokai University, Japan. His research interests are in design, simulation, fabrication and characterization of semiconductor device, and semiconductor sensors on integrated circuits. He is currently working at the Department of Electronics, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand.

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Published

2020-08-20

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Section

Smart Innovative Technology for Future Industry and Multimedia Applications

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