FABRICATION OF CAPACITIVE ACCELERATION SENSORS BY THE LIGA TECHNIQUE

被引:28
作者
BURBAUM, C [1 ]
MOHR, J [1 ]
BLEY, P [1 ]
EHRFELD, W [1 ]
机构
[1] STEAG AG,UNTERNEHMENSBEREICH MIKROTECH,W-7500 KARLSRUHE 21,GERMANY
关键词
D O I
10.1016/0924-4247(91)87051-4
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
By combination of the LIGA (German Acronym for Lithografie, Galvanoformung, Abformung) process with a sacrificial layer technique, movable microstructures with great structural heights can be fabricated. As a first example, a movable mass suspended on a cantilever which can be used as a capacitive acceleration sensor is presented. Calculation of the sensor characteristics shows that a capacitor gap width of 3-mu-m is needed. This capacitor has been fabricated up to a height of more than 100-mu-m. The movability of these microstructures is demonstrated by applying electrical and magnetic fields.
引用
收藏
页码:559 / 563
页数:5
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