In one embodiment, first and second mated substrates of a switch define there between at least portions of a number of cavities. A switching fluid is held within one or more of the cavities and is moveable between at least first and second switch states in response to forces that are applied to the switching...http://www.google.fr/patents/US7119294?utm_source=gb-gplus-shareBrevet US7119294 - Switch with concentric curvilinear heater resistor
Switch with concentric curvilinear heater resistor
