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
Video surveillance system employing video primitives
Hand-held electronic display device
Stable nanoemulsions for ultrasound-mediated drug delivery and imaging
Optical modulator module
Film-forming resins as a carrier for topical application of pharmacologically active agents
Laser marking of a card
Transferring a document
  Randomly Featured Patents
Electronic control module cooling device
Data synchronization between distributed computers
Biochemical analysis unit and biochemical analyzing method using the same
Blinker assembly
Silicon wafer with controlled distribution of embryos that become oxygen precipitates by succeeding annealing and its manufacturing method
Shear pin coupling
Semi-process non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making
Start-up circuit for a shunt regulator
Centerless grinding method
Furniture article with edge molding