Patent · US Active

Shunt switch at common port to reduce hot switching

US9156677B2 · kind B2 · utility

2Cited by

4References

22Claims

0Family size

Assignee

RF Micro Devices, Inc. · US

Inventors

Ruediger Bauder · Feldkirchen-Westerham, DE
Nadim Khlat · Cugnaux, FR
Julio C. Costa · Oak Ridge, US
Jonathan Hale Hammond · Oak Ridge, US

Key dates

Filing date	Feb 11, 2013
Grant date	Oct 13, 2015
Priority date	—
Expiry date	Mar 1, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB81B2201/014
WIPO fieldMicro-structural and nano-technology
WIPO sectorChemistry

Abstract

Pilot switch circuitry grounds a hot node (an injection node) of a microelectromechanical system (MEMS) switch to reduce or eliminate arcing between a cantilever contact and a terminal contact when the MEMS switch is opened or closed. The pilot switch circuitry grounds the hot node prior to, during, and after the cantilever contact and terminal contact of the MEMS come into contact with one another (when the MEMS switch is closed). Additionally, the pilot switch circuitry grounds the hot node prior to, during, and after the cantilever contact and terminal contact of the MEMS disengage from one another (when the MEMS switch is opened).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.