Charge-coupled device

Details Charge-coupled device Charge-coupled device

H - Electricity

01

L

352/82.2

H01L 29/78 (2006.01) G11C 19/28 (2006.01) H01L 29/768 (2006.01)

Patent

CA 1257393

ABSTRACT: Charge-coupled device. The invention relates to an input stage for a ccd, which has both a good linearity and favourable high-frequency properties. The input stage comprises a first electrode (18), by which, for example by means of fill and spill, a charge packet (29) of fixed size is formed. Subsequently, viewed in the charge transport direction, three consecutively arranged electrodes (19, 20 and 21) succeed. The fixed charge packet (29) is divided below the electrodes (19 and 21) into two complementary signal-dependent charge packets (30, 31), of which the charge packet (30) is transported further and the packet (31) is transferred back to the first electrode (18). The electrode (20) acts as a sampling electrode, which separates the packets (30 and 31) from each other. The signal formation takes place at the edge of the clock with which the sampling electrode is controlled and is therefore independent of the frequency of this clock. Fig. 4.

511259

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