Patent ID: 6255134
Filing Date: 2001-07-03
Classification: H01L,H04N

Abstract:
A fast frame-rate CCD imaging device, comprising:a semiconductor chip;an m-by-n array of CCD imaging photocells fabricated in the semiconductor chip;an m-number of vertical shift registers connected to a corresponding column of the CCD imaging photocells;a horizontal shift register connected to receive photocell information from the vertical shift registers; andan optical blockage mask deposited on the semiconductor chip and over the m-by-n array of CCD imaging photocells such that a majority of such CCD imaging photocells are permanently darkened;wherein, a frame-rate multiplication during use is made possible by a clocking of photocell image information from a first plurality of unblocked CCD imaging photocells into a second plurality of permanently darkened CCD imaging photocells when a next image frame exposure occurs.