Photosensitivity and Scanning of Silicon Image Detector Arrays

The first part of this paper deals with the basic photodiode unit, its principle of operation, and the factors that affect the photodiode and array sensitivity. Experimental results of the planar Si p⁺-n photodiode are presented. Design and layout considerations including the integration time are also given. The second part of this paper deals with scanning of photodiode arrays. Detail design considerations are given for a static MOST ring counter. A dynamic shift register with clocked loads for integral scanning is also considered. Design considerations of a realized photosensing matrix with integral scanning are given. Finally, scanning problems of large arrays are briefly considered.