Coto Technology, the reed switch specialist, has brought out a MEMS reed switch.
The switch has the usual advantages of conventional reed switches like zero power operation and high-power hot switching.
Coto calls the switch RedRock. It measures 1.125mm x 2.185mm and 0.95mm high.
The MEMS approach becomes necessary because: "You can't make reed switches less than 5mm in length," says Coto's Stephen Day.
Source:
http://www.electronicsweekly.com/Articles/2013/04/23/55951/globalpress-summit-coto-goes-mems.htm