MICROELECTRONICS AND RELIABILITY
|
1998年
/
38卷
/
6-8期
关键词:
D O I:
10.1016/S0026-2714(98)00079-1
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:
We present an original imaging method to measure the three components of the surface displacement of working power devices with a nanometric resolution. The method takes advantage of the speckle structure of the analysed object recorded on a CCD camera. This method is complementary of IR thermography and provides interesting information concerning stress and reliability in power devices. (C) 1998 Elsevier Science Ltd. All rights reserved.