Solid image pickup apparatus

Details Solid image pickup apparatus Solid image pickup apparatus

1988-08-17

1990-10-16

Hille, Rolf

H01L 2714, H01L 3100

Patent

active

049639560

ABSTRACT:
A solid image pickup apparatus comprises a plurality of photo sensing elements, arranged on a semiconductor substrate two-dimensionally and spaced mutually by specified distances, for outputting electric charges on receiving light, a semiconductor channel formed among the photo sensing elements and transferring electric charges output from the photo sensing elements. The semiconductor channel comprises cross-shaped channel members, each channel member being located inside four photo sensing elements. A plurality of vertical transfer electrodes, are provided on the channel members, for giving electric potential to the channel members and having electric charges transferred to the channel members of the next stages. Each of the channel members comprises a wide-width part and a narrow-width part located between the wide-width part and the channel member of the next stage. The narrow-width part is formed by an ion-implanting method to have a higher impurity concentration than that of the wide-width part.

REFERENCES:
patent: 3845295 (1974-10-01), Williams et al.
patent: 4291239 (1981-09-01), Weimer
patent: 4733286 (1988-03-01), Matsumoto

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