Total ionising dose (TID);
Power LDMOS transistors;
TCAD simulation;
High energy physics (HEP) experiments;
Radiation effects;
X-RAY;
MOS DEVICES;
OXIDES;
DAMAGE;
CO-60;
IRRADIATIONS;
DISPLACEMENT;
D O I:
10.1016/j.mejo.2011.10.013
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
Due to the increasing interest on laterally diffused MOS (LDMOS) transistors as a part of power electronics in the high energy physics (HEP) experiments, the effect of total ionising dose (TID) on their electrical performances has been experimentally measured. The analysis of the experimental results requires the aid of physics-based simulations to study the impact of TID effects on the LDMOS drift oxide layer. In this work, a simulation methodology is developed in order to analyse the changes in the electric field distribution as a consequence of the TID induced trapped charge, and its relationship with the technological parameters and the bias conditions. The simulation results are compared with the experimental data. (C) 2011 Elsevier Ltd. All rights reserved.