Current Collapse-Free and Self-Heating Performances in Normally Off GaN Nanowire GAA-MOSFETs


Im K., Atmaca G., Won C., Caulmilone R., Cristoloveanu S., Kim Y., ...Daha Fazla

IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY, cilt.6, sa.1, ss.354-359, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 1
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1109/jeds.2018.2806930
  • Dergi Adı: IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.354-359
  • Anahtar Kelimeler: GaN, MOSFET, nanowire, gate-all-around, GaN-on-insulator, dynamic mode, self-heating, ELECTRON-TRANSPORT, ALGAN/GAN, CONDUCTIVITY, TRANSISTORS, SIMULATION, STRAIN
  • Gazi Üniversitesi Adresli: Evet

Özet

Normally off lateral GaN nanowire gate-all-around MOSFETs have been fabricated on the GaN-on-insulator substrate. The dynamic measurement proved that the devices with various nanowire heights exhibit current collapse-free characteristics implying that the electrons in the isolated nanowire channel do not suffer from trapping effects. However, the dc current level measured at high drain and gate voltage is reduced to approximately one half of the value measured in dynamic mode. This is attributed to the difficulty in heat dissipation because the suspended lateral nanowire channel is thermally isolated from the substrate. However, the heat dissipation is mitigated as the nanowire size increases.