Canon Kabushiki Kaisha

Shunsuke Nakatsuka

Yasuhiro Sekine

Masatsugu Itahashi

Sho Suzuki

Kentaro Suzuki

Mari Isobe

Takayasu Kanesada

Yusuke Tsukagoshi

An image pickup device having a pixel region in which pixels are arranged, and in which a multilayer wiring structure is disposed. Each pixel includes a photoelectric conversion unit, a charge accumulation unit, a floating diffusion, a light shielding portion covering the charge accumulation unit and opening above the photoelectric conversion unit, and a waveguide which overlaps at least partially a portion at which the light shielding portion opens in a plan view. The device includes an insulating film disposed below the optical waveguide. The insulating film has a refractive index higher than that of an interlayer insulating film. The insulating film is disposed closer to the photoelectric conversion unit than to the lowermost wiring layer among wiring layers of the multilayer wiring structure. The insulating film extends to a portion above the light shielding portion. The insulating film is wider than a lower portion of the optical waveguide.

Image pickup device and method for manufacturing image pickup device

A manufacturing method of a solid state imaging device according to one embodiment includes the steps of forming, on a substrate, a gate electrode of a first transistor and a gate electrode of a second transistor adjacent to the first transistor; forming an insulator film covering the gate electrode of the first transistor and the gate electrode of the second transistor such that a void is formed between the gate electrode of the first transistor and the gate electrode of the second transistor; forming a film on the insulator film; and forming a light shielding member by removing a part of the film by an etching.

Solid state imaging device, manufacturing method of solid state imaging device, and imaging system

A method for manufacturing a solid-state image pickup apparatus includes forming a first insulating film over a substrate after forming a gate electrode of a first transfer transistor and a gate electrode of a second transfer transistor, forming a second insulating film on the first insulating film, forming a first structure and a second structure on side surfaces of the gate electrodes of the first and second transfer transistors, respectively, via the first insulating film by etching the second insulating film in such a manner that the first insulating film remains on a semiconductor region of a photoelectric conversion unit and a semiconductor region of a charge holding unit, and forming a light shielding film that covers the gate electrode of the first transfer transistor, the semiconductor region of the charge holding unit, and the gate electrode of the second transfer transistor.

Method for manufacturing solid-state image pickup apparatus, solid-state image pickup apparatus, and image pickup system including the same

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

Sagamihara, Japan

Shunsuke Nakatsuka