Low Turn-On Voltage AlGaN/GaN-on-Si Rectifier With Gated Ohmic Anode

A novel AlGaN/GaN-on-Si rectifier with a gated ohmic anode has been proposed to reduce the turn-on voltage without breakdown-voltage degradation. The combination of an ohmic anode and a recessed Schottky gate is responsible for the low turn-on voltage and thus increases the forward current. In compa...

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Veröffentlicht in:IEEE electron device letters 2013-02, Vol.34 (2), p.214-216
Hauptverfasser: LEE, Jae-Gil, PARK, Bong-Ryeol, CHO, Chun-Hyung, SEO, Kwang-Seok, CHA, Ho-Young
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container_issue 2
container_start_page 214
container_title IEEE electron device letters
container_volume 34
creator LEE, Jae-Gil
PARK, Bong-Ryeol
CHO, Chun-Hyung
SEO, Kwang-Seok
CHA, Ho-Young
description A novel AlGaN/GaN-on-Si rectifier with a gated ohmic anode has been proposed to reduce the turn-on voltage without breakdown-voltage degradation. The combination of an ohmic anode and a recessed Schottky gate is responsible for the low turn-on voltage and thus increases the forward current. In comparison with conventional Schottky diodes, the forward current at 1.5 V was increased by 2 to 3 times, whereas no breakdown-voltage degradation was observed. The proposed rectifier with an anode-to-cathode distance of 18 μm exhibited a turn-on voltage of 0.37 V, a forward current density of 92 mA/mm at 1.5 V, and a breakdown voltage of 1440 V.
doi_str_mv 10.1109/LED.2012.2235403
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Passive components, printed wiring boards, connectics</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Gallium nitride</subject><subject>gated ohmic anode</subject><subject>HEMTs</subject><subject>Logic gates</subject><subject>rectifier</subject><subject>Schottky barriers</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. 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The combination of an ohmic anode and a recessed Schottky gate is responsible for the low turn-on voltage and thus increases the forward current. In comparison with conventional Schottky diodes, the forward current at 1.5 V was increased by 2 to 3 times, whereas no breakdown-voltage degradation was observed. The proposed rectifier with an anode-to-cathode distance of 18 μm exhibited a turn-on voltage of 0.37 V, a forward current density of 92 mA/mm at 1.5 V, and a breakdown voltage of 1440 V.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/LED.2012.2235403</doi><tpages>3</tpages></addata></record>
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subjects AlGaN/GaN-on-Si
Aluminum gallium nitride
Anodes
Applied sciences
Breakdown voltage
Diodes
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Gallium nitride
gated ohmic anode
HEMTs
Logic gates
rectifier
Schottky barriers
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
turn-on voltage
title Low Turn-On Voltage AlGaN/GaN-on-Si Rectifier With Gated Ohmic Anode
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