Patent ID: 9344808
Filing Date: 2016-05-17
CPC Classification: B81B,B81C,H04R

Claim Text:
1. A MEMS device comprising: a first plate with a first surface and a second surface; a second plate with a third surface and a fourth surface, attached to the first plate; a third plate with a fifth surface and a sixth surface embedded within one of the first plate or the second plate; a suspension connecting a first substrate to one of the first plate or the second plate; a linkage connecting the first plate and the second plate, where the first plate and second plate are displaced in the presence of an acoustic pressure differential between the first and second surfaces; wherein the first and second plate together comprise an acoustic plate and a perforated electrical plate coupled to the acoustic plate; wherein the first plate, the second plate, the third plate, the linkage and the suspension form a structure in the first substrate, wherein the structure is bonded to a second substrate; a first electrode formed on the third plate; a second electrode formed on the second substrate; a first gap formed between the second plate and the first electrode; and a second gap formed between the second plate and the second electrode.