Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Manufacturing method of acoustic sensor










Image Number 4 for United States Patent #7080442.

The present invention relates to a semiconductor electret condenser microphone capable of being reduced in size and including an acoustic sensor 100 and a case 200 for accommodating the acoustic sensor 100, the acoustic sensor 100 has a semiconductor chip 110 forming necessary electronic circuits 111A to 111C, and opening a through hole 112 away from the electronic circuits 111A to 111C, an electrode layer 120 formed on the surface of the semiconductor chip 110 away from the through hole 112, an electret member 130 laminated away from part of the electrode layer 120 and through hole 112, and a diaphragm 140 provided with a spacing 160 to the electret member 130, in which the electrode layer 120 exposed from the electret member 130 is connected to the electrode 111a of the electronic circuit 111A through the case 200 (FIG. 6).








 
 
  Recently Added Patents
Peer-to-peer method of deploying and managing executable code and associated plug-ins
Semiconductor device having trapezoidal shaped trenches
Focusing apparatus that effectively sets a focus area of an image when a focusing mode is changed
Plants and seeds of hybrid corn variety CH260114
Method and mobile device for awareness of language ability
Real-time application of filters based on image attributes
Optical signal output apparatus, electrical signal output apparatus, and test apparatus
  Randomly Featured Patents
Reception device, communication control method in mobile communication system
Use of ligands for treatment of diseases responsive to retinoids
Transparent liquid filled ball having three isolated interior compartments
Reconfiguring a watermark detector
Multiple protocol wireless communication baseband transceiver
Switch for a suspended railway vehicle
Powder body metering apparatus
Monolithically formed one-piece reflective pavement marker
Method of making a floating gate non-volatile MOS semiconductor memory device with improved capacitive coupling
Anode electrocatalyst for fuel cell and process of preparing same