Patent ID: 8630033

Claim:
A device comprising a deflectable structure ( 1 , 2 , 3 , 4 , 5 ), provided on a substrate (SW), said substrate comprising a plurality of electrodes ( 59 a , 59 b ; 6 , 7 ), beneath the deflectable structure at points such that when a potential is applied to the plurality of electrodes an electric field is generated between the deflectable structure and the plurality of electrodes, causing an attraction towards the plurality of electrodes whereby the deflectable structure is deflected, wherein the plurality of electrodes ( 59 a , 59 b ; 6 , 7 ) beneath the deflectable structure comprises via structures extending through the substrate (SW) from its back side, the via structures having surfaces facing the deflectable structure forming the plurality of electrodes,wherein the deflectable structure is a mirror suspended by a gimbal structure to a surrounding support structure on the substrate, the gimbal structure having gimbals, each of the gimbals allowing rotation of the mirror about an axis, the device further comprising interleaved comb shaped electrodes on selected parts of the gimbal structure and on the support structure respectively, such that when the plurality of electrodes on the support structure are energized a deflection of the mirror(s) takes place.