Characterization and Fabrication of the CFM-JTE for 4H-SiC Power Device with High-Efficiency Protection and Increased JTE Dose Tolerance Window.

Characterization and Fabrication of the CFM-JTE for 4H-SiC Power Device with High-Efficiency Protection and Increased JTE Dose Tolerance Window.
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具有高效率保护的4H-SIC电源设备的CFM-JTE的表征和制造,并增加了JTE剂量耐受性窗口。

DOI:
10.1186/s11671-020-03443-5
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发表时间:
2020-11-10
影响因子:
--
通讯作者:
Zhang B
Zhang B
中科院分区:
材料科学3区
文献类型:
--
作者:
Wen Y;Xu XJ;Tao ML;Lu XF;Deng XC;Li X;Li JT;Li ZQ;Zhang B

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本文制作了一个13.5 kV的4H-SiC引脚整流器,其有效面积为0.1 cm2。为了满足超高反向电压的要求,提出了电荷场调制结端扩展(CFM-JTE),它扩大了JTE的剂量容限窗口,约为传统双区JTE的2.8倍。此外,CFM-JTE可以通过传统的两区JTE工艺实现。在没有载波寿命增强技术的情况下,测量的正向电流高达100 A @ VF = 5.2 V。CFM-JTE结构在相对较小的400 μm端面积下实现了96%的平行平面结理论击穿电压,从而实现了58.8 GW/cm2的Baliga优值。
A 13.5 kV 4H-SiC PiN rectifier with a considerable active area of 0.1 cm2 is fabricated in this paper. Charge-field-modulated junction termination extension (CFM-JTE) has been proposed for satisfying the requirement of ultra-high reverse voltage, which enlarges the JTE dose tolerance window, making it approximately 2.8 times that of the conventional two-zone JTE. Besides, the CFM-JTE can be implemented through the conventional two-zone JTE process. The measured forward current is up to 100 A @ VF = 5.2 V in the absence of carrier lifetime enhancement technology. The CFM-JTE structure accomplishes 96% of the theoretical breakdown voltage of the parallel plane junction with a relatively small terminal area of 400 μm, which contributes to achieving the Baliga’s figure of merit of 58.8 GW/cm2.
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发表时间: 2015-02-01
影响因子: 3.1
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