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Influences of light irradiation on the negative resistance turn-around characteristics of static induction photosensitive thyristor (SIPTH) have been experimentally and theoretically studied. As the gate current of SIPTH is increased by the light irradiation, the potential barrier in the channel is reduced due to the increase in voltage drop across the gate series resistance. Therefore, SIPTH can be quickly switched from the blocking state to the conducting state by relatively low anode voltage. The optimal matching relation for controlling anode conducting voltage of SIPTH by light irradiation has also been represented. 相似文献
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电力静电感应晶体管大电压特性的改善 总被引:3,自引:2,他引:1
A novel structure for designing and fabricating a power static induction transistor(SIT)with excellent high breakdown voltage performance is presented.The active region of the device is designed to be surrounded by a deep trench to cut off the various probable parasitical effects that may degrade the device performance,and to avoid the parallel-current effect in particular.Three ring-shape junctions(RSJ)are arranged around the gate junction to reduce the electric field intensity.It is important to achieve maximum gate–source breakdown voltage BVGS, gate–drain breakdown voltage BVGD and blocking voltage for high power application.A number of technological methods to increase BVGD and BVGS are presented.The BVGS of the power SIT has been increased to 110 V from a previous value of 50–60 V,and the performance of the power SIT has been greatly improved.The optimal distance between two adjacent ring-shape junctions and the trench depth for the maximum BVGS of the structure are also presented. 相似文献
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