• DocumentCode
    1659482
  • Title

    The magnetotransistor for 2-axis magnetic field measurement in CMOS technology

  • Author

    Leepattarapongpan, Chana ; Phetchakul, Toempong ; Pengpad, Puttapon ; Srihapat, Arckom ; Jeamsaksiri, Wutthinan ; Chaowicharat, Ekalak ; Hruanun, Charndet ; Poyai, Amporn

  • Author_Institution
    Dept. of Electron., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    This paper presents a magnetotransistor for detecting magnetic field in vertical and lateral directions (BY and BZ) by relying on the difference between base and collector currents (ΔICB). It was designed and fabricated using CMOS fabrication technology. The device structure consisted of one emitter, 4 collectors and 4 bases. The experiment showed that, at 10 mA of biasing current, the BY and BZ direction sensitivity to magnetic field within the range of 0 - 400 mT are 0.7 and 1.35 %/T, respectively. The sensitivity at emitter current 20mA are 0.55 and 0.7 %/T for vertical and lateral magnetic field directions, respectively. This research on the magnetotransistor produced magnetic sensors with small size, high performance with wide range of applications.
  • Keywords
    CMOS integrated circuits; magnetic field measurement; magnetic sensors; semiconductor device manufacture; semiconductor device measurement; transistors; 2-axis magnetic field measurement; BY direction sensitivity; BZ direction sensitivity; CMOS fabrication technology; CMOS technology; base currents; biasing current; collector currents; current 10 mA; current 20 mA; device structure; emitter current; magnetic field directions; magnetic sensors; magnetotransistor; Magnetic circuits; Magnetic field measurement; Magnetic fields; Magnetic flux; Magnetic sensors; Sensitivity; HALL Effect; Lorentz force; Magnetotransistor;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2015 12th International Conference on
  • Conference_Location
    Hua Hin
  • Type

    conf

  • DOI
    10.1109/ECTICon.2015.7206955
  • Filename
    7206955
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1659482