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Schottky barrier diodes fabricated on high-purity type-IIa CVD diamond substrates using an all-ion-implantation process

MetadataDetails
Publication Date2021-04-12
JournalJapanese Journal of Applied Physics
AuthorsSeiya Shigematsu, Toshiyuki Oishi, Yuhei Seki, Yasushi Hoshino, Jyoji Nakata
InstitutionsSaga University, Kanagawa University
Citations13

Abstract We fabricated a Schottky barrier diode (SBD) on ion-implanted diamond substrates. The SBDs contained lightly doped regions under the Schottky electrodes and heavily doped regions beneath the Ohmic contacts. The current remained below 6.4 Ɨ 10 āˆ’11 A at reverse biases of up to 10 V, but increased sharply at a forward bias of āˆ’3.5 V. The Schottky barrier height and ideality factor under forward bias were estimated to be 1.1 eV and 10, respectively. The hole concentrations obtained by measuring the capacitance at various supplied voltages were in good agreement with the values obtained from the Hall effect measurements.

  1. 1986 - Ion implantation for VLSI