A 30 frames/s 2/3-in 1.3 M-pixel progressive scan IT-CCD image sensor

A 30 frames/s 2/3-in 1.3 M-pixel progressive scan interline-transfer charge -coupled device (IT-CCD) image sensor has been developed for video and digi tal still-camera applications. To obtain high frame-rate images, a 49-MHz d riving horizontal CCD (H-CCD) was developed. An 8-phase drive for vertical CCDs (V-CCDs) makes it possible to operate in a variety of modes, such as 1 050 line progressive scan mode and 1049 line wide dynamic range interlaced scan mode. For digital still camera use, removing residual charges stored i n the V-CCDs before exposure is essential, therefore new narrow-channel bar rier over-flow drain (NCB-OFD) attached under the H-CCD was developed. The NCB-OFD automatically drains out extra charges and has the advantages of re quiring neither an over-flow control gate nor any additional masks.