Canon Kabushiki Kaisha

Takayasu Kanesada

Yukinobu Suzuki

Akihiro Kawano

Nobutaka Ukigaya

Takeshi Aoki

Koji Hara

Hiroshi Takakusagi

Shunsuke Nakatsuka

Yusuke Tsukagoshi

A disclosed photoelectric conversion device includes: a semiconductor layer in which a photoelectric converter is provided; a substrate arranged on one face side of the semiconductor layer; and an interconnection structure arranged between the semiconductor layer and the substrate. The interconnection structure includes a first insulating film made of a first insulating material and a second insulating film provided on the semiconductor layer side of the first insulating film and made of a second insulating material, the first insulating material permeates more hydrogen than the second insulating material, an insulating member made of the first insulating material is located between the first insulating film and the semiconductor layer, and the first insulating film and the insulating member are connected to each other via an opening provided in the second insulating film.

Photoelectric conversion device

A semiconductor apparatus configured to decrease occurrence of exfoliation between a conductor layer and an insulator layer is provided. A first region containing silicon and copper is disposed between a first conductor portion and a first insulator portion. A second region containing silicon and copper is disposed between a second conductor portion and a second insulator portion. The first region has a maximum nitrogen concentration higher than that of the second region.

Semiconductor apparatus and equipment

A method of manufacturing a solid-state image sensor is provided. A first insulating member and an electrically conductive member is formed above a semiconductor substrate. A connecting portion of an upper surface of the electrically conductive member is covered with part of the first insulating member. First openings corresponding to the photoelectric conversion units are formed in the first insulating member. A second insulating member covering the first insulating member is then formed. The second insulating member is partially removed to expose the part of the first insulating member covering the connecting portion. A third insulating member that covers the first and second insulating members is then formed. The third insulating member is partially removed to expose the second insulating member. A second opening to expose the connecting portion is then formed to form a plug.

Method of manufacturing solid-state image sensor

A photoelectric conversion device has an insulator film disposed on a silicon layer having a photoelectric conversion region, the insulator film having a portion overlapped with the photoelectric conversion region, a silicon oxide film disposed on the insulator film, the silicon oxide film having a portion overlapped with the photoelectric conversion region, an electroconductive member disposed between the insulator film and the silicon oxide film, and a silicon oxide layer disposed between the electroconductive member and the silicon oxide film, in which the portion overlapped with the photoelectric conversion region of the silicon oxide film is in contact with the portion overlapped with the photoelectric conversion region of the insulator film and the hydrogen concentration of the silicon oxide film is greater than the hydrogen concentration of the silicon oxide layer.

Photoelectric conversion device, image pickup system, and method for manufacturing photoelectric conversion device

A method for manufacturing a solid-state image sensor, the method comprising preparing a substrate including a photoelectric conversion portion, forming, on the substrate, a structure which includes a first member made of a material containing silicon oxide and a second member arranged on the first member and made of a material containing silicon carbide, forming an opening in a position above the photoelectric conversion portion in the structure by removing a part of the first and the second members, and forming a transparent member in the opening, wherein the second member is formed at a first temperature and the transparent member is formed at a second temperature lower than the first temperature.

Method for manufacturing solid-state image sensor

A method of manufacturing a solid-state imaging apparatus, comprising preparing a semiconductor substrate including a photoelectric conversion portion and a structure which includes an insulating member formed on the photoelectric conversion portion and a wiring pattern formed in the insulating member, forming a film made of SiC and/or SiCN on the structure, forming an opening immediately above the photoelectric conversion portion by removing part of the film and part of the insulating member, and depositing a member in the opening and on the film, and forming a light-guide portion by polishing the member so as to expose the film.

Growing community of inventors

Yamato, Japan

Takayasu Kanesada