Patent ID: 7701028
Filing Date: 2010-04-20
Classification: H01L,Y02E

Abstract:
1. A pixel for use in an image sensor, comprising: an active area for converting incident radiation into charge carriers of a first and a second charge type, charge-separation areas located in said active area for separating said charge carriers of the first charge type from said charge carriers of the second charge type, and charge-storage for storing charge carriers of at least one charge type, said charge-storage being located in a charge-storage area which is laterally adjacent to said active area, but geometrically separated from said active area, a readout node provided outside said active area, and an isolation gate arranged between said active area and said readout node for electrically isolating said readout node from said active area, wherein said charge-separation areas comprise at least one floating area and at least two contact areas provided with electric contacts for applying a voltage to said at least two contact areas, said contact areas being electrically insulated from said at least one floating area yet capacitively coupled to at least one of said at least one floating area to generate a lateral electric field to move charge carriers toward the charge storage.