Patent ID: 9634153
Date: 2017-04-25
CPC Classifications: B81B,G01L,G01P,H01L,H04R

Claim:
1. A sensor using a sensing mechanism combining an electrostatic unit and an electric field effect transistor, comprising: a substrate; a source part and a drain part disposed inside the substrate and separated from each other; a channel part formed between the source part and the drain part; a membrane separated from the channel part to be positioned upwardly and reacting to an external signal to generate a displacement; an electrostatic member formed at a lower surface of the membrane to be separated from the channel part and generating an electric field; and a shielding member covering and contacting a center portion of the membrane, wherein a thickness of both ends of the membrane is thicker than the thickness of the center part of the membrane and a center part of the shielding member corresponds to the electrostatic member, and wherein the electric field of the electrostatic member is configured to affect only the channel part.