摘要
微机械薄膜应力对MEMS器件有较大的影响 ,因此应力测量对于工艺监控和MEMS器件设计是必须的。介绍了微机械薄膜应力的在线测试结构与方法 ,详细分析了各种方法的特点。
Internal stresses in micromachined thin films have a great influence on the properties of MEMS devices.Measurement of stresses in the films is critical for process monitoring and MEMS design.In situ test structures and methods for the films are introduced.Comparison of various methods is given,which is valuable to the design of the MEMS test structures.
出处
《测控技术》
CSCD
2002年第7期6-9,共4页
Measurement & Control Technology