SOLID-STATE IMAGE SENSOR AND CAMERA

摘要

The solid-state image sensor includes image sensing pixels, first and second focus detection pixels configured to respectively detect lights passing through different regions of a pupil of an image sensing lens. The sensor includes a semiconductor substrate including photoelectric converters of the image sensing pixels, a photoelectric converter and a first well contact region of the first focus detection pixel, and a photoelectric converter and a second well contact region of the second focus detection pixel, a first contact plug electrically connected to the first well contact region, and a second contact plug electrically connected to the second well contact region. The relative position of the first well contact region in the first focus detection pixel differs from a relative position of the second well contact region in the second focus detection pixel.

主权项

1. A solid-state image sensor including a plurality of image sensing pixels configured to sense an image of an object, a first focus detection pixel configured to detect light passing through a first region of a pupil of an image sensing lens, and a second focus detection element configured to detect light passing through a second region different from the first region of the pupil, the sensor comprising:
a semiconductor substrate including photoelectric converters of the plurality of image sensing pixels, a photoelectric converter and a first well contact region of the first focus detection pixel, and a photoelectric converter and a second well contact region of the second focus detection pixel; a first light shielding portion configured to define the first region and shield the first well contact region from light; a second light shielding portion configured to define the second region and shield the second well contact region from light; a first contact plug electrically connected to the first well contact region; and a second contact plug electrically connected to the second well contact region, wherein a relative position of the first well contact region in the first focus detection pixel with respect to an element included in the first focus detection pixel differs from a relative position of the second well contact region in the second focus detection pixel with respect to an element corresponding to the element included in the first focus detection pixel.