SOLID-STATE IMAGING DEVICE
First Claim
1. A solid-state imaging device, comprising:
- a plurality of first pixels and a plurality of second pixels which are formed in a semiconductor substrate, whereineach of the first pixels includes a first impurity region of a first conductivity type formed in the semiconductor substrate, a second impurity region of a second conductivity type formed on the first impurity region and serving as a first photodiode, and a fifth impurity region of a first conductivity type formed on a surface side of the semiconductor substrate on the second impurity region, andeach of the second pixels includes a third impurity region of a first conductivity type formed in the semiconductor substrate, a fourth impurity region of a second conductivity type formed on the third impurity region and serving as a second photodiode, and an impurity region of a first conductivity type having a same impurity concentration as the first impurity region and formed on a surface side of the semiconductor substrate on the fourth impurity region or a sixth impurity region of a first conductivity type having a lower impurity concentration than the fifth impurity region and formed on a surface side of the semiconductor substrate on the fourth impurity region.
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Accused Products
Abstract
A solid-state imaging device includes first pixels and second pixels. Each of the first pixels and the second pixels includes a p-type diffusion layer formed in a semiconductor substrate and an n-type diffusion layer formed on the p-type diffusion layer. A first p-type implantation layer is formed on a surface side of the semiconductor substrate on the n-type diffusion layer of the first pixels. A second p-type implantation layer having a lower impurity concentration than the first p-type implantation layer or no p-type implantation layer is formed on a surface side of the semiconductor substrate on the n-type diffusion layer of the second pixels.
16 Citations
13 Claims
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1. A solid-state imaging device, comprising:
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a plurality of first pixels and a plurality of second pixels which are formed in a semiconductor substrate, wherein each of the first pixels includes a first impurity region of a first conductivity type formed in the semiconductor substrate, a second impurity region of a second conductivity type formed on the first impurity region and serving as a first photodiode, and a fifth impurity region of a first conductivity type formed on a surface side of the semiconductor substrate on the second impurity region, and each of the second pixels includes a third impurity region of a first conductivity type formed in the semiconductor substrate, a fourth impurity region of a second conductivity type formed on the third impurity region and serving as a second photodiode, and an impurity region of a first conductivity type having a same impurity concentration as the first impurity region and formed on a surface side of the semiconductor substrate on the fourth impurity region or a sixth impurity region of a first conductivity type having a lower impurity concentration than the fifth impurity region and formed on a surface side of the semiconductor substrate on the fourth impurity region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification