Title :
ALPHA, a new contact type linear image sensor
Author :
Goto, Hiroshige ; Maeumura, K. ; Morimune, K. ; Tada, Tetsuya ; Sato, Takashi
Author_Institution :
Toshiba Corp., Kawasaki, Japan
Abstract :
A contact-type image sensor, ALPHA (active linear photodiode array), which, although adopting simple fabrication technology, attains performance comparable to that of change coupled device (CCD) image sensor, is described. Inline arrangement of eight sensor chips realizes a reading length of 216 mm by resolution of 8 pixels/mm. Deviation of DC offset of voltage pickup circuits provided at each pixel, an inherent problem in this type of sensor, is corrected by a simple clamping circuit
Keywords :
image sensors; photodiodes; ALPHA; DC offset; active linear photodiode array; clamping circuit; contact type linear image sensor; fabrication technology; inline arrangement; reading length; sensor chips; voltage pickup circuits; Capacitance; Charge-coupled image sensors; Circuits; Computational Intelligence Society; Electrons; Fabrication; Image sensors; Photodiodes; Shift registers; Voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 1990., Proceedings of the IEEE 1990
Conference_Location :
Boston, MA
DOI :
10.1109/CICC.1990.124684
