Abstract
This paper studies the electric stability of a MEMS-based
AC voltage reference. The operation of the device is
based on the characteristic pull-in phenomenon of a
moving plate capacitor. The stability of a MEMS-based AC
voltage reference was improved from 3 ppm/day to below 2
ppm/22 days by compensating the built-in voltage with an
external DC voltage source. This level of performance is
sufficient for several applications and is outstanding
compared to results published earlier.
| Original language | English |
|---|---|
| Pages (from-to) | 169-174 |
| Journal | Sensors and Actuators A: Physical |
| Volume | 137 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2007 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- microelectromechanical systems
- MEMS
- capacitive sensors
- micromachining
- built-in voltage
- AC voltage reference
- oxide charging