Patent ID: 8089017
Filing Date: 2012-01-03
Classification: G06F,H01H

Abstract:
1. A mobile electronic device (MED) comprising: a housing defining a recess; a dome switch assembly to initiate a function of the MED, the dome switch assembly having a substrate with a passageway defined therethrough, the dome switch assembly further having an outer layer secured to the substrate, the outer layer having a dome actuation portion, the dome actuation portion including an electrically conductive element, the substrate having an electrode formed on a side of the substrate that faces the dome actuation portion, the dome actuation portion and the substrate defining a dome volume therebetween, the dome switch assembly being secured to the housing to seal the recess from an outside environment of the MED, the passageway fluidly connecting the dome volume and the recess to allow fluid from the dome volume to flow through the passageway, and into the recess, upon depression of the dome actuation portion, the depression of the dome actuation portion to cause the electrically conductive element to contact the electrode to initiate the function of the MED; and wherein the substrate has a disc-shape electrode and a ring-shape electrode formed thereon and the passageway is formed between the electrodes.