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
Flat panel crystal display employing simultaneous charging of main and subsidiary pixel electrodes
Extreme ultraviolet light source device and method for generating extreme ultraviolet light
Handheld electronic communication device having sliding display
Vacuum cleaner
Operation controlling apparatus
Image manipulating system and method
Manufactured product configuration
  Randomly Featured Patents
Support structure for a vehicle
Bayonet handle package
Single-chip CMOS direct-conversion transceiver
Limited amplitude signal trigger circuit
Epoxysuccinic acid derivatives
Torque wrench device
Apparatus and method for constructing formularies
Tension latching system
Method for the production of 3-methyl cephem derivatives
VEGF-A as an inhibitor of angiogenesis and methods of using same