Patent ID: 8723280
Filing Date: 2014-05-13
Classification: B81B,B81C,H01L

Abstract:
1. A micro-electro-mechanical systems (MEMS) device, comprising: a substrate having a first surface; a proof mass having a fulcrum, wherein a lower surface of the proof mass is suspended a first distance above the first surface of the substrate by the fulcrum, and wherein the proof mass is configured to rotate about the fulcrum; a pair of sensing plates associated with the first surface of the substrate and positioned on opposing sides of the fulcrum; a metal bump associated with each of the pair of sensing plates and positioned proximate to a respective distal end of the proof mass, wherein each metal bump extends a second distance from the first surface of the substrate; and an oxide bump associated with each of the pair of sensing plates and positioned between the respective sensing plate and the fulcrum, wherein each oxide bump extends a third distance from the first surface of the substrate.