Patent ID: 8686816
Filing Date: 2014-04-01
Classification: B81B,H01H,Y10T

Abstract:
1. A MEMS element comprising: a first electrode provided on a substrate; an insulating film provided on the first electrode; a second electrode which is provided above the first electrode and which is driven toward the first electrode; an anchor provided on the substrate; and at least one beam which supports the second electrode in midair, one end of the at least one beam being connected to the anchor and the at least one beam including a sidewall part provided at its end in the width direction, the sidewall part having a downward-facing protrusion, wherein a first variable capacitance is included between the first electrode and the second electrode, and wherein the other end of the at least one beam is connected to the second electrode with a joining part, the width of the joining part is less than the width of the at least one beam.