MEMS lifetime enhancement
US9336953B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2013 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Sep 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H59/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention generally relates to methods for increasing the lifetime of MEMS devices by reducing the number of movements of a switching element in the MEMS device. Rather than returning to a ground state between cycles, the switching element can remain in the same state if both cycles necessitate the same capacitance. For example, if in both a first and second cycle, the switching element of the MEMS device is in a state of high capacitance the switching element can remain in place between the first and second cycle rather than move to the ground state. Even if the polarity of the capacitance is different in successive cycles, the switching element can remain in place and the polarity can be switched. Because the switching element remains in place between cycles, the switching element, while having the same finite number of movements, should have a longer lifetime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.