A High-Accuracy AlGaN/GaN Reverse Blocking CRD (RB-CRD) with Hybrid Trench Cathode

A High-Accuracy AlGaN/GaN Reverse Blocking CRD (RB-CRD) with Hybrid Trench Cathode
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具有混合沟槽阴极的高精度 AlGaN/GaN 反向阻断 CRD (RB-CRD)

DOI:
10.1186/s11671-019-2860-y
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发表时间:
2019-01
影响因子:
--
通讯作者:
Zhang Bo
Zhang Bo
中科院分区:
材料科学3区
文献类型:
--
作者:
Zhang Anbang;Zhou Qi;Yang Chao;Shi Yuanyuan;Chen Wanjun;Li Zhaoji;Zhang Bo

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提出了一种具有沟槽肖特基阳极和混合沟槽阴极的 AlGaN/GaN 横向反向阻断电流调节二极管(RB-CRD),并在硅衬底上进行了实验演示。阳极集成肖特基势垒二极管(SBD),导通电压为0.7V,反向击穿电压为260V。混合沟槽阴极充当CRD,与阳极SBD串联。 RB-CRD 可实现 1.3V 的拐点电压和超过 200V 的正向工作电压。 RB-CRD能够在25至300°C的宽温度范围内输出出色的稳定电流。此外,正向调节电流表现出小于- 0.152%/oC的小负温度系数。
An AlGaN/GaN lateral reverse blocking current regulating diode (RB-CRD) with trench Schottky anode and hybrid trench cathode has been proposed and experimentally demonstrated on silicon substrate. The Schottky barrier diode (SBD) integrated in the anode exhibits a turn-on voltage of 0.7 V and a reverse breakdown voltage of 260 V. The hybrid trench cathode acts as a CRD, which is in series connection with the anode SBD. A knee voltage of 1.3 V and a forward operation voltage beyond 200 V can be achieved for the RB-CRD. The RB-CRD is capable of outputting an excellent steady current in a wide temperature range from 25 to 300 °C. In addition, the forward regulating current exhibits small negative temperature coefficients less than − 0.152%/oC.
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