WORKSHOP PAPER
A Time-Of-Flight Image Sensor with Sub-mm Resolution Using Draining Only Modulation Pixels
Abstract
This paper describes new TOF measurement technique for high range resolution of the order of sub-mm or several tens of um. For the distance calculation, impulse response of photocurrent by means of very short light pulse is used. A draining-only modulation pixel provides high response and loss-free electron integration. The test chip fabricated in 0.11 um CIS technology demonstrates modulation contrast is measured to be 85%. The average range resolution is measured to be 210 um at measurable range of 50 mm.Keywords
TOF measurement technique, draining-only modulation pixels, range resolution,References
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