Patent ID: 6841811
Filing Date: 2005-01-11
Classification: H01L

Abstract:
1. An interline transfer charge coupled device comprising: columns of pinned photodiodes formed in a semiconductor; and vertical shift registers interleaved in between each of the columns of pinned photodiodes, wherein each of the vertical shift registers comprises: (a) a first gate over the semiconductor, wherein a region of the semiconductor beneath the first gate has a first electric potential; (b) a first doped region in the semiconductor next to the region of the semiconductor beneath the first gate, the first doped region having a second electric potential that is greater than the first electric potential; (c) a second doped region in the semiconductor next to the first doped region, the second doped region having a third electric potential that is greater than the second electric potential; (d) a third doped region in the semiconductor next to the second doped region, the third doped region having a fourth electric potential that is greater than the third electric potential; and (e) a second gate over the first, the second, and the third doped regions, the first gate being coupled to the second gate and to an electrode.