Abstract
A 640×480 pixel image sensor, which consisted of an integrated field emitter array (FEA) equipped with an active drive circuit and a high-gain avalanche rushing amorphous photoconductor (HARP) film, in close proximity to each other, was fabricated and tested as a step toward the development of ultrahigh-sensitivity compact image sensors. Our experimental results revealed that the prototype sensor provided both high sensitivity due to the avalanche multiplication effect of the HARP film and sufficient resolution as a VGA image sensor.
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