Seiko Epson Corporation

Sophia School Corporation

Manabu Kudo

Katsumi Kishino

Osamu Ohara

The light emitting device includes a substrate, and a laminated structure including columnar parts, wherein the columnar parts include a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, and a light emitting layer disposed between the first semiconductor layer and the second semiconductor layer, the light emitting layer has a c-plane and a facet plane, the second semiconductor layer is disposed on the c-plane and the facet plane, the first semiconductor layer has a first portion and a second portion smaller in diametrical size than the first portion, the second portion is disposed between the substrate and the first portion, and the c-plane and the second portion overlap each other, and the c-plane is smaller in diametrical size than the second portion in a plan view from a stacking direction of the first semiconductor layer and the light emitting layer.

Light emitting device, projector, and display

A method of manufacturing a photoelectric conversion element including a semiconductor layer includes: forming an electrode; forming an insulating layer covering the electrode; forming an opening in a region of the insulating layer overlapping the electrode in a plan view; forming a covering layer of a semiconductor material on a surface of the insulating layer; and forming the semiconductor layer by patterning the covering layer. In the forming of the semiconductor layer, the semiconductor layer is formed such that an outer circumferential edge of the semiconductor layer is located on the outside of an inner circumferential edge of the opening in the plan view.

Method of manufacturing photoelectric conversion element, photoelectric conversion element, and photoelectric conversion device

An image sensor as a photoelectric conversion device includes: a lower electrode containing a high-melting-point metal; an upper electrode disposed in a layer higher than the lower electrode; a p-type semiconductor layer and an n-type semiconductor layer disposed between the lower electrode and the upper electrode; and a relay electrode containing the high-melting-point metal. The lower electrode and the relay electrode are formed in the same layer. An intermediate layer as a selenized film of the high-melting-point metal is formed on the lower electrode.

Photoelectric conversion device, method for manufacturing photoelectric conversion device, and electronic apparatus

Provided is a semiconductor device that can suppress a leakage current more than has been achieved before. A semiconductor deviceincludes a first carrier holding layer, which is arranged on a lower electrode, is in contact with a lower electrodevia a first interface, and includes majority carriers of one type, and a second carrier holding layer, which is arranged on the first carrier holding layer, defines a second interfaceconstituting a conduction path to the first carrier holding layer, and includes majority carriers of the other type. The first interfacehas its outline within the outline of the first carrier holding layerwhen seen in a plan view in a direction that is orthogonal to a surface of the substrate, and the second interfacehas its outline within the outline of the first carrier holding layerwhen seen in the plan view.

Semiconductor device and method for manufacturing the same

A circuit layer is formed on a surface of a substrate and includes a transistor. A photoelectric conversion element includes a photoelectric conversion layer of a chalcopyrite-type semiconductor provided between a first electrode and a second electrode. A supply layer is formed between the circuit layer and the photoelectric conversion layer and contains an Ia group element. Diffusion of the Ia group element to the photoelectric conversion layer improves the photoelectric conversion efficiency. A protective layer is formed between the supply layer and the circuit layer and prevents the diffusion of the Ia group element to the circuit layer.

Photoelectric conversion device and method for manufacturing the same

The invention provides a semiconductor device, which removes troubles occurring when the parasitic capacitance between layered wiring lines with an interlayer insulating film therebetween is reduced, and have a simple structure and high reliability. The electronic device according to the invention can include a semiconductor layer formed on a substrate, a gate insulating layer formed on the semiconductor layer, a gate electrode having a predetermined pattern and formed on the gate insulating layer, an interlayer insulating film formed to cover the gate electrode, a source electrode and a drain electrode formed on the interlayer insulating film. The interlayer insulating film can be mainly made of silicon oxynitride with a nitrogen concentration of atomic percent or higher.

Growing community of inventors

Suwa, Japan

Manabu Kudo