1991-03-06
1992-07-21
Epps, Georgia Y.
357 60, 357 61, H01L 2948
Patent
active
051327490
ABSTRACT:
Doping a dopant into a diamond semiconductor causes lattice defects. The pn junction diode or the Schottky junction diode made from diamond has low break down voltage and high reverse leakage current owing to the lattice defects. A non-doped or low doped diamond layer with high resistivity is epitaxially grown between the N-type diamond layer and the p-type diamond layer in the pn junction diode or between the metal layer and the doped diamond layer in the Schottky diode. The intermediate layer heightens the break down voltage and decreases the reverse leakage current.
REFERENCES:
patent: 4982243 (1991-01-01), Nakahata et al.
Fujimuri et al, "Characterization of conducting diamond films", Vacum, vol. 36, No. 1-3, pp. 99-102, 1986.
Moazed et al., "Ohmic Contacts to Semiconductor Diamond", IEEE Elect Device, Letters, vol. 9, No. 7, Jul. 1988.
Shiomi et al., "Field-effect Transistors Using Boron-doped Diamond Epitaxial Films", Japanese Journal of Applied Physics, Dec. 28, 1989, No. 12, Part 2, pp. L2153-L2154.
Geis et al., "High-temperature Point-contact Transistors and Schottky Diodes Formed On Synthetic Boron-doped Diamond", IEEE Electron Device Letters, Aug. 1987, vol. EDL-8, No. 8, pp. 341-343.
Bazhenov et al., "Synthetic Diamonds In Electronics (Review)", Soviet Physics Semiconductos, Aug. 1985, vol. 19, pp. 829-841.
Fujimori Maoji
Nishibayashi Yoshiki
Shiomi Hiromu
Epps Georgia Y.
Sumitomo Electric Industries Ltd.
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