Patent ID: 9210515
Filing Date: 2015-12-08
Classification: H04R

Abstract:
1. An acoustic sensor comprising: a substrate comprising an acoustic chamber, a first hole, and a second hole that penetrate the substrate, the first hole being spaced apart from the second hole; a lower electrode pad including a first portion and a second portion, the first portion disposed on a sidewall of the first hole, the second portion disposed on a top surface of the substrate and extending in a first direction; a diaphragm pad including a first portion and a second portion, the first portion disposed on a sidewall of the second hole, the second portion disposed on the top surface of the substrate and extending in a second direction; a lower electrode disposed over the acoustic chamber and connected to the second portion of the lower electrode pad; and a diaphragm disposed over the lower electrode and spaced apart from the lower electrode, the diaphragm being connected to the second portion of the diaphragm pad.