Patent ID: 7989750

Claim:
An image sensor comprising: a substrate including at least a first and a second dual-lobed active region, the first and the second dual-lobed active region spatially isolated from each other; a first transfer gate formed between each lobe of the first dual-lobed active region and a first connection active region of the first dual-lobed active region; a plurality of readout elements formed on an axis active region of the first dual-lobed active region; a second transfer gate formed between each lobe of the second dual-lobed active region and a second connection active region of the second dual-lobed active region; and at least one dummy gate group including at least one dummy gate formed in an element isolation region adjacent to the second connection active region, wherein the at least one dummy gate group includes a plurality of dummy gates including the at least one dummy gate, the plurality of dummy gates being substantially parallel to the plurality of readout elements, and a number of the plurality of dummy gates equals a number of the plurality of readout elements.