Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Semiconductor device and inspection method thereof










Image Number 2 for United States Patent #7579858.

A semiconductor device is disclosed. The device has a photodiode isolated by element isolating regions (Ia, 14a, 14b) characterized by the following facts: on the principal surface of first semiconductor layer 11 of the first electroconductive type, second semiconductor layer 12 of the second electroconductive type is formed; element isolating region Ia of the first electroconductive type is formed extending through the second semiconductor layer to reach the outer layer portion of the first semiconductor layer so as to isolate the photodiode region; to the outside of the photodiode region isolated by the element isolating regions, moat region E of the second electroconductive type is formed extending through the second semiconductor layer to reach the outer layer portion of the first semiconductor layer; a voltage different from that applied to the second semiconductor layer in the photodiode region is applied to the moat region, and based on the current flowing between the moat region and the second semiconductor layer in the photodiode region, the presence/absence of an inversion layer of the second electroconductive type formed in the outer layer portion of the first semiconductor layer is detected.








 
 
  Recently Added Patents
Radio frequency splitter
Low powered activation arrangement and method thereof
Method of monitoring and configuring
Method and apparatus for controlling peak amplifier and doherty power amplifier
Adjustable voltage regulator with dynamic voltage compensation
System and method for netbackup data decryption in a high latency low bandwidth environment
(4929
  Randomly Featured Patents
Sheet transport path switching mechanism
Shoe upper
Compact disk and audio cassette display kiosk
Data-transmission system using binary split-phase code
Pesticidal unsymmetrical bis-arylcarbamate sulfide compounds
Vacuum pump
Embedded memory and methods thereof
Light fixture
Method and device for measuring clearances between gears
Flash memory cell