Charge coupled device exposure control

Details Charge coupled device exposure control Charge coupled device exposure control

H - Electricity

01

L

345/24

H01L 31/00 (2006.01) H01L 27/148 (2006.01) H01L 31/113 (2006.01)

Patent

CA 1085500

Application for Patent of Gilbert F. Amelio for CHARGED COUPLED DEVICE WITH EXPOSURE Abstract of the Disclosure The charge generated in a light sensing element in semi- conductor material by incident radiation is transferred to a charge sink by lowering the potential in the semiconductor material between said light sensing element and the charge sink. When it is desired to accumulate charge in the light sensing element for some purpose, the potential in this intermediate region of semiconductor material is raised to prevent the flow of additional charge to the charge sink region. By adjusting the potential on this intermediate region, a given amount of charge can be allowed to accumulate in the light sensing element while at the same time any additional charge can he allowed to transfer to the charge sink region. The charge packet generated in the light sensing element is read out of the light sensing element in the normal manner.

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