Photosensitive semiconductor device having radiation sensitive d

Details Photosensitive semiconductor device having radiation sensitive d Photosensitive semiconductor device having radiation sensitive d

1990-05-17

1992-03-24

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

25037001, 2502082, 357 30, H01L 2714

Patent

active

050991264

ABSTRACT:
A radiation-sensitive semiconductor device, more particularly but not exclusively a photo detection arrangement for determining the postion of a luminous spot, including a semiconductor body having at least two radiation-sensitive diodes and amplifying circuitry for the photocurrent generated by the luminous spot. The amplifying circuitry includes transistors arranged outside the area of the semiconductor body occupied by the radiation-sensitive diodes. Each transistor is assigned to and connected to a radiation-sensitive diode, while at least the active parts of the transistors are arranged more closely to each other in the semiconductor body than the diodes to which they are assigned. A focusing arrangement may advantageously incorporate such as semiconductor photodetector.

REFERENCES:
patent: 4433920 (1984-02-01), Sekiya et al.
patent: 4549088 (1985-10-01), Ozawa
patent: 4945529 (1990-07-01), Ono et al.

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