摘要
A study on the influence of the external resistor and the external voltage source during the injection of the electromagnetic pulse（EMP） into the bipolar transistor（BJT） is carried out.Research shows that the increase of the external resistor R_b at base makes the burnout time of the device decrease slightly,the increase of the external voltage source V_（be） at base can aid the damage of the device when the magnitude of the injecting voltage is relatively low and has little influence when the magnitude is sufficiently high causing the device appearing the PIN structure damage,and the increase of the external resistor R_e can remarkably reduce the voltage drops added to the device and improve the durability of the device.In the final analysis,the effect of the external circuit component on the BJT damage is the influence on the condition which makes the device appear current-mode second breakdown.
A study on the influence of the external resistor and the external voltage source during the injection of the electromagnetic pulse（EMP） into the bipolar transistor（BJT） is carried out.Research shows that the increase of the external resistor R_b at base makes the burnout time of the device decrease slightly,the increase of the external voltage source V_（be） at base can aid the damage of the device when the magnitude of the injecting voltage is relatively low and has little influence when the magnitude is sufficiently high causing the device appearing the PIN structure damage,and the increase of the external resistor R_e can remarkably reduce the voltage drops added to the device and improve the durability of the device.In the final analysis,the effect of the external circuit component on the BJT damage is the influence on the condition which makes the device appear current-mode second breakdown.
基金
Project supported by the National Natural Science Foundation of China(No.60776034).
