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
Patient interface
Semiconductor device and fabrication method
Plants and seeds of hybrid corn variety CH424126
Nanowire structured photodiode with a surrounding epitaxially grown P or N layer
Electronic device and printed circuit board
Methods and apparatus for adapting network characteristics in telecommunications systems
Aisle barrier
  Randomly Featured Patents
Casing for a turbojet engine combustion chamber
Light frame for drafting table
Color photographic recording material containing color couplers
Anti-charging layer for beam lithography and mask fabrication
Vertical DRAM punchthrough stop self-aligned to storage trench
Steering platform for a working vehicle
Thread guiding and screening element for use in filament winder
Reverse flow blocking device for vehicle ventilation system
Selective bypass of solenoid-controlled supply to friction elements of an automatic transmission
Electroactive materials and electroactive actuators that act as artificial muscle, tendon, and skin