Patent · US Active

Use of micro-structured plate for controlling capacitance of mechanical capacitor switches

US9641174B2 · kind B2 · utility

0Cited by

17References

17Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Mark Bachman · Irvine, US
Guann-Pyng Li · Irvine, US
Yang Zhang · San Diego, US
Ruisheng Chang · Irvine, US
Minfeng Wang · Irvine, US
Sungjun Kim · Seongnam-si, KR

Key dates

Filing date	Apr 11, 2012
Grant date	May 2, 2017
Priority date	—
Expiry date	Apr 11, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/975
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Micro capacitive switches and methods of manufacturing micro capacitive switches at variable nominal capacitance value using micro-structures on the contact plates of the same dimension. In a preferred embodiment, a separately manufactured contact plate can be mounted to a movable magnet in order to be actuated to “on” and “off” state of the capacitive switch. Depending on the contact plate's surface condition, variable contact capacitance at “on” state can be precisely specified by geometrical properties of the micro-structures on the surface, such as the density, size and depth.

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