Mitsubishi Denki Kabushiki Kaisha

Nippon Hoso' Kyokai

Fumihiko Andoh

Hidekazu Yamamoto

Masao Yamawaki

Kazunori Miyakawa

Hiroshi Kawashima

Naofumi Murata

Kazuhisa Taketoshi

Katsu Tanaka

An image sensor includes a photoelectric conversion element, a first MOS transistor having having a gate connected to the photoelectric conversion element, a second MOS transistor connected in series with the first transistor, and a third MOS transistor connected in series with the photoelectric conversion element, wherein the threshold voltage of the third MOS transistor is set higher than that of the second MOS transistor. In one embodiment, each of the pixels included in a second group of rows includes a photoelectric conversion element but without the first, second and third MOS transistors. A fourth MOS transistor connects a photoelectric conversion element of the second group to a photoelectric conversion element of a first group, the photoelectric conversion elements of the first group being part of pixels which contain first, second and third MOS transistors.

Solid state image sensor and a driving method thereof

A camera device having favorable multiplication characteristics (quantum efficiency) as well as improved sensitivity in a visible light region (especially the region on the red side) and a method of manufacturing the same are provided. The camera device includes a hole injection stop layer, a first photoelectric converting layer including selenium, a second photoelectric converting layer having spectral sensitivity characteristics which are different from those of the first photoelectric converting layer, a third photoelectric converting layer including selenium, and an electron injection stop layer. As a result, it is possible to improve multiplication characteristics (quantum efficiency) and to improve the sensitivity in the visible light region (especially the region on the red side) simultaneously.

Method of manufacturing a camera device

Camera device and method of manufacturing the same

Growing community of inventors

Tokyo, Japan

Fumihiko Andoh