Patent ID: 8796845
Filing Date: 2014-08-05
Classification: B81C

Abstract:
1. An electronic device comprising: a substrate; an MEMS structure formed above the substrate; and a covering structure defining a cavity in which the MEMS structure is arranged, wherein the covering structure has the first covering layer has, in a plan view from a thickness direction of the substrate, the first covering layer is thinner in the first region than in the second region, a distance between the substrate and the first covering layer in the first region is longer than a distance between the substrate and the first covering layer in the second region, the through-hole is formed in the first region between the MEMS structure and the second region in the plan view, the second covering layer is formed above the first covering layer located above the MEMS structure, and a first thickness of the second covering layer that is formed in and above the through-hole is the same as a second thickness that is obtained by combining thicknesses of the first and second covering layers located above the MEMS structure.