Thermal Stress and Deformation Depend on Thickness of CCD Composite Dielectrics
Thermal stress and deformation depended on CCD Si3N4/SiO2/Si composite dielectrics thickness was simulated by ANSYS.The simulation results were indicated that the thermal stress of each dielectric film was constant and did not depend on the dielectrics thickness,and the deformation distribution was ring from vertical view,and the extremal deformation was located in the structure center whatever composite dielectrics thickness was,and the deformation approximately linearly increased with the dielectrics thickness,and the Si3N4 effect on the deformation was greater than SiO2.The effect was also analysed in the experiment.How to select appropriate dielectrics thickness was discussed from the thermal stress and deformation effects on CCD composite dielectrics structure performances and follow-up technology process.
composite dielectrics thermal stress deformation thickness
Xiaoming Zheng Limei Rong Tao Xie Yong Zhou Jiangfeng Du Xiaowen Zhang Zuwen Wang
School of Microelectronics and Solid-State Electronic University of Electronic Science and Technolog China Defense Science and Technology Information Center Beijing, China
国际会议
成都
英文
942-944
2012-06-15(万方平台首次上网日期,不代表论文的发表时间)