Kabushiki Kaisha Toshiba

Tokyo Institute of Technology

Toshiya Nakayama

Kazuhito Higuchi

Susumu Obata

Akiya Kimura

Hideo Nishiuchi

Yoshiaki Sugizaki

Akihiro Kojima

Kazuo Shimokawa

Hisashi Ito

Yosuke Akimoto

Hideto Furuyama

Miyoko Shimada

Hiroshi Koizumi

Masayuki Uchida

Yusaku Asano

Yasunari Ukita

Kazuma Hiraguri

Mayumi Machino

Kyoko Honma

Masato Sone

Tso-Fu Mark Chang

An electroplating method according to an embodiment is a electroplating method of generating a metal film on a cathode surface by setting a negative potential to a cathode of an anode and the cathode provided in a reaction bath, including mixing and accommodating a plating solution containing at least plated metal ions, an electrolyte, and a surface active agent and a supercritical fluid in the reaction bath and applying a current in a concentration of the supercritical fluid and a cathode current density in which a polarization resistance obtained from a cathode polarization curve while the plated metal ions are reduced is larger than before the supercritical fluid is mixed.

Electroplating method and electroplating device

A semiconductor light emitting device includes a light emitting unit, a first and second electrode, a first and second metal pillar, a sealing unit, a rectifying element, and a first and second interconnection. The light emitting unit includes a first and second semiconductor layer, and a light-emitting layer. The light-emitting layer is provided on the first semiconductor layer. The second semiconductor layer is provided on the light-emitting layer. The first electrode is provided on the first semiconductor layer. The second electrode is provided on the second semiconductor layer. The first metal pillar is electrically connected to the first electrode. The second metal pillar is electrically connected to the second electrode. The sealing unit seals the first metal pillar and the second metal pillar. The rectifying element is provided below the first semiconductor layer, including a rectifying unit.

Semiconductor light emitting device and method for manufacturing the same

A semiconductor light emitting device includes a light emitting unit, a first and second conductive pillar, a sealing unit, and a first and second terminal. The light emitting unit includes a first and second semiconductor layer and a light emitting layer. The light emitting layer is provided on the first semiconductor layer. The second semiconductor layer is provided on the light emitting layer. The first conductive pillar is provided on the first semiconductor layer. The second conductive pillar is provided on the second semiconductor layer. The sealing unit covers side faces of each of the light emitting unit, the first conductive pillar, and the second conductive pillar. The first terminal is provided on the first conductive pillar and on the sealing unit. The second terminal is provided on the second conductive pillar and on the sealing unit.

According to one embodiment, a light-emitting unit which emits light, a wavelength conversion unit which includes a phosphor and which is provided on a main surface of the light-emitting unit, and a transparent resin which is provided on top of the wavelength conversion unit, are prepared. The transparent resin has a greater modulus of elasticity and/or a higher Shore hardness than the wavelength conversion unit.

Semiconductor light-emitting device and manufacturing method of the same

According to an embodiment, a semiconductor light emitting device includes a stacked body, first and second electrodes, first and second interconnections, first and second pillars and a first insulating layer. The stacked body includes first and second semiconductor layers and a light emitting layer. The first and second electrodes are connected to the first and second semiconductor layers respectively. The first and second interconnections are connected to the first and second electrode respectively. The first and second pillars are connected to the first and second interconnections respectively. The first insulating layer is provided on the interconnections and the pillars. The first and second pillars have first and second monitor pads exposed in a surface of the first insulating layer. The first and second interconnections have first and second bonding pads exposed in a side face connected with the surface of the first insulating layer.

Semiconductor light emitting device

According to one embodiment, a light source apparatus includes a semiconductor light emitting device, a mounting substrate, first and second connection members. The semiconductor light emitting device includes a light emitting unit, first and second conductive members, a sealing member, and an optical layer. The mounting substrate includes a base body, first and second substrate electrodes. The connection member electrically connects the conductive member to the substrate electrode. The conductive member is electrically connected to the light emitting unit electrode and includes first and second columnar portions provided on the second major surface. The sealing member covers side surfaces of the first and the second conductive members. The optical layer is provided on the first major surface of the semiconductor stacked body and includes a wavelength conversion unit. A surface area of the second substrate electrode is not less than 100 times a cross-sectional area of the second columnar portion.

Light source apparatus using semiconductor light emitting device

According to one embodiment, a semiconductor light emitting device includes a light emitting unit, first and second conductive members, an insulating layer, a sealing member, and an optical layer. The light emitting unit includes a semiconductor stacked body and first and second electrodes. The semiconductor stacked body includes first and second semiconductor layers and a light emitting layer, and has a major surface on a second semiconductor layer side. The first and second electrodes are connected to the first and second semiconductor layers on the major surface side, respectively. The first conductive member is connected to the first electrode and includes a first columnar portion covering a portion of the second semiconductor. The insulating layer is provided between the first columnar portion and the portion of the second semiconductor. The sealing member covers side surfaces of the conductive members. The optical layer is provided on the other major surface.

Semiconductor light emitting device and method for manufacturing same

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Kanagawa-ken, Japan

Toshiya Nakayama