2700V 4H-SiC结势垒肖特基二极管

Research & Progress of SSE(2011)

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Abstract
在76.2 mm 4H-SiC晶圆上采用厚外延技术和器件制作工艺研制的结势垒肖特基二极管(JBS)。在室温下,器件反向耐压达到2 700 V。正向开启电压为0.8 V,在V_F=2 V时正向电流密度122 A/cm~2,比导通电阻R_(on)=8.8 mΩ·cm~2。得到肖特基接触势垒qΦ_B=1.24 eV,理想因子n=1。
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Key words
Junction barrier schottky diodes,4H-SiC,high blocking voltage
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