公开(公告)号：US12068437B2

公开(公告)日：2024-08-20

申请号：US18295511

申请日：2023-04-04

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato ,  Keiji Emura

IPC: H01L33/00 ,  H01L33/06 ,  H01L33/38

CPC classification number: H01L33/387 ,  H01L33/06 ,  H01L33/38

Abstract: A light emitting element includes: a semiconductor structure; first and second electrodes formed above the semiconductor structure; and a protective film. In a plan view: the first electrode has a first connecting portion, a first extending portion, and two second extending portions, the second electrode has a second connecting portion, and two third extending portions, the first extending portion extends linearly in a direction from the first connecting portion toward the second connecting portion, the two second extending portions are located on opposite sides of the first extending portion, respectively, with each of the second extending portions having two bent portions and a linear portion extending parallel to the first extending portion and located between the two bent portions, and the two third extending portions are located between the first extending portion and the two second extending portions, respectively.

公开(公告)号：US09882093B2

公开(公告)日：2018-01-30

申请号：US15399196

申请日：2017-01-05

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato ,  Keiji Emura

IPC: H01L33/00 ,  H01L33/38 ,  H01L33/06

CPC classification number: H01L33/387 ,  H01L33/06 ,  H01L33/38

Abstract: A light emitting element has: first and second conductivity type semiconductor layers, first and second electrodes disposed on the same face side of the first and second conductivity type semiconductor layers, respectively. In plan view, the first electrode has a first connecting portion, a first extending portion, and two second extending portions, and the second electrode has a second connecting portion and two third extending portions. The first extending portion of the first electrode extends linearly from the first connecting portion toward the second connecting portion, and the two second extending portions extend parallel to the first extending portion on two sides of the first extending portion. The second extending portions each has two bent portions. The third extending portions extend parallel to the first extending portion between the first extending portion and the two second extending portions.

公开(公告)号：US09373751B2

公开(公告)日：2016-06-21

申请号：US14136610

申请日：2013-12-20

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato

IPC: H01L27/088 ,  H01L33/36 ,  H01L33/38 ,  H01L33/20

CPC classification number: H01L33/36 ,  H01L33/20 ,  H01L33/38 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A light emitting element includes a first conductivity-type semiconductor layer, a first electrode, a second conductivity-type semiconductor layer and a second electrode. The second conductivity-type semiconductor layer has a square peripheral shape. The first electrode includes a first connecting portion on a first diagonal line and a first extending portion extending from the first connecting portion onto the first diagonal line. The second electrode includes a second connecting portion on the first diagonal line facing the first connecting portion via the first extending portion. Two second extending portions extend from the second connecting portion and having a first portion and a second portion respectively. The first connecting portion includes an end portion closer to the second connecting portion than a straight line intersecting the tip ends of the two second extending portions, and a center portion at a side father from the second connecting portion than the second diagonal line.

Abstract translation: 发光元件包括第一导电型半导体层，第一电极，第二导电型半导体层和第二电极。 第二导电型半导体层具有正方形的周边形状。 第一电极包括第一对角线上的第一连接部分和从第一连接部分延伸到第一对角线上的第一延伸部分。 第二电极包括经由第一延伸部分的面对第一连接部分的第一对角线上的第二连接部分。 两个第二延伸部分分别从第二连接部分延伸并具有第一部分和第二部分。 所述第一连接部包括比所述两个第二延伸部的前端交叉的直线更靠近所述第二连接部的端部，以及比所述第二对角线从所述第二连接部的父侧的中心部。

公开(公告)号：US11817529B2

公开(公告)日：2023-11-14

申请号：US17200316

申请日：2021-03-12

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato ,  Keiji Emura

IPC: H01L33/00 ,  H01L33/38 ,  H01L33/06

CPC classification number: H01L33/387 ,  H01L33/06 ,  H01L33/38

Abstract: A light emitting element includes a semiconductor structure, and first and second electrodes. In a plan view, the first electrode has a first connecting portion, and a first extending portion and exactly two second extending portions. The second electrode has a second connecting portion, and exactly two third extending portions. The first extending portion extends linearly from the first electrode connecting portion toward the second electrode connecting portion. Each of the two third extending portions includes a bent portion, and a linear portion located between the first extending portion and a respective one of linear portions of the two second extending portions, and along an imaginary line that extends through the two second extending portions and the two third extending portions in a direction perpendicular to the direction in which the first extending portion extends, an entirety of the second electrode is located inward of the two second extending portions.

公开(公告)号：US10593840B2

公开(公告)日：2020-03-17

申请号：US16351206

申请日：2019-03-12

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato ,  Keiji Emura

IPC: H01L33/00 ,  H01L33/38 ,  H01L33/06

Abstract: A light emitting element has first and second electrodes. In plan view, the first electrode has a first connecting portion configured to be bonded with a conductive wire, a first extending portion, and two second extending portions. The second electrode has a second connecting portion configured to be bonded with a conductive wire, and two third extending portions. The first extending portion extends linearly toward the second connecting portion, and the two second extending portions are arranged on two sides of the first extending portion. The second extending portions each has two bent portions and a linear portion extending parallel to the first extending portion and disposed between the two bent portions. The third extending portions extend parallel to the first extending portion between the first extending portion and the second extending portions. Each of the second extending portions extends beyond a position of the second connecting portion.

公开(公告)号：US11296255B2

公开(公告)日：2022-04-05

申请号：US16751589

申请日：2020-01-24

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato ,  Kazuya Nakao

IPC: H01L33/40 ,  H01L33/38 ,  H01L33/26

Abstract: A method of manufacturing a light-emitting element including, in the following order, steps of: preparing a wafer on which a semiconductor layer including an light-emission layer is formed; forming a resist film comprising a main body and a protrusion; forming a first metal film; forming a second metal film on the resist film and on the first metal film; pulling the protrusion of the resist film upward by raising and then lowering a temperature of the wafer; forming a third metal film on the second metal film and covering an end of the first metal film by the third metal film; and removing the resist film. In the step of forming the second metal film, the end of the first metal film is exposed from the second metal film.

公开(公告)号：US10978617B2

公开(公告)日：2021-04-13

申请号：US16785143

申请日：2020-02-07

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato ,  Keiji Emura

IPC: H01L33/00 ,  H01L33/38 ,  H01L33/06

Abstract: A light emitting element has first and second electrodes. In plan view, the first electrode has a first connecting portion, a first extending portion, and two second extending portions. The second electrode has a second connecting portion, and two third extending portions. The first extending portion extends linearly toward the second connecting portion, and the second extending portions are arranged on two sides of the first extending portion. The second extending portions each has two bent portions and a linear portion extending parallel to the first extending portion and disposed between the two bent portions. The third extending portions extend parallel to the first extending portion between the first extending portion and the second extending portions. The second extending portions extend beyond the second connecting portion. The first and second connecting portions are symmetrically arranged with respect to a virtual line parallel to one side of the light emitting element.

公开(公告)号：US10276751B2

公开(公告)日：2019-04-30

申请号：US15835175

申请日：2017-12-07

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato ,  Keiji Emura

IPC: H01L33/00 ,  H01L33/38 ,  H01L33/06

Abstract: A light emitting element has semiconductor layers and first and second electrodes disposed. In plan view, the first electrode has a first connecting portion, a first extending portion, and two second extending portions, and the second electrode has a second connecting portion and two third extending portions. The first extending portion of the first electrode extends linearly from the first connecting portion toward the second connecting portion, and the two second extending portions extend parallel to the first extending portion on two sides of the first extending portion. The second extending portions each has two bent portions. The third extending portions extend parallel to the first extending portion between the first extending portion and the second extending portion. With respect to an extending direction of the first extending portion, each of the second extending portions extends beyond a position of the second connecting portion.

公开(公告)号：US09577152B2

公开(公告)日：2017-02-21

申请号：US14560224

申请日：2014-12-04

Applicant: NICHIA CORPORATION

Inventor： Kosuke Sato ,  Keiji Emura

IPC: H01L33/00 ,  H01L33/38

CPC classification number: H01L33/387 ,  H01L33/06 ,  H01L33/38

Abstract: A light emitting element having; a first and a second conductivity type semiconductor layers, a first and a second electrodes formed on the first and second conductivity type semiconductor layer, the first and the second electrodes being disposed on the same face side of the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, in plan view, the first electrode having a first connecting portion, a first extending portion, and two second extending portions, the second electrode having a second connecting portion and two third extending portions, the first extending portion of the first electrode extending linearly from the first connecting portion toward the second connecting portion, and the two second extending portions extending parallel to the first extending portion on two sides of the first extending portion, the two third extending portions of the second electrode extending parallel to the first extending portion between the first extending portion and the two second extending portions.

Abstract translation: 发光元件具有： 第一和第二导电类型半导体层，形成在第一和第二导电类型半导体层上的第一和第二电极，第一和第二电极设置在第一导电类型半导体层的相同的面侧，第二电极 导电型半导体层，在平面图中，第一电极具有第一连接部分，第一延伸部分和两个第二延伸部分，第二电极具有第二连接部分和两个第三延伸部分，第一延伸部分的第一延伸部分 电极从第一连接部分朝向第二连接部分线性延伸，并且两个第二延伸部分在第一延伸部分的两侧平行于第一延伸部分延伸，第二电极的两个第三延伸部分平行于第一延伸部分 延伸部分在第一延伸部分和第二延伸部分之间 xtending部分。

公开(公告)号：US08878218B2

公开(公告)日：2014-11-04

申请号：US14054868

申请日：2013-10-16

Applicant: Nichia Corporation

Inventor： Kosuke Sato ,  Yoshitaka Sumitomo ,  Dai Wakamatsu ,  Yoshiyuki Aihara ,  Kimihiro Miyamoto ,  Satoshi Kinoshita

IPC: H01L33/00 ,  H01L33/10

CPC classification number: H01L33/10 ,  H01L33/005 ,  H01L33/0095 ,  H01L33/46 ,  H01L2924/0002 ,  H01L2924/00

Abstract: The invention provides semiconductor light-emitting devices which have a semiconductor layer on a principal surface of a translucent substrate and a reflective layer on a second principal surface opposite to the principal surface having the semiconductor layer, which enables that the peeling of the reflective layer from the translucent substrate is suppressed. A semiconductor light-emitting device includes a first metal layer disposed in contact with a second principal surface of a translucent substrate, a second metal layer disposed in contact with at least the second principal surface or a side surface of the translucent substrate around the first metal layer, and a third metal layer disposed on the second metal layer. The first metal layer has a reflectance with respect to a peak wavelength of light emitted from an emitting layer higher than the reflectance of the second metal layer. The second metal layer has an adhesion with respect to the translucent substrate higher than the adhesion between the first metal layer and the translucent substrate.

Abstract translation: 本发明提供了在半透明基板的主表面上具有半导体层的半导体发光器件和与具有半导体层的主表面相对的第二主表面上的反射层，其能够使反射层从 透光性基板被抑制。 半导体发光器件包括与透光性基板的第二主面接触配置的第一金属层，与第一金属的至少第二主面或半透明基板的侧面相接触地设置的第二金属层 层和设置在第二金属层上的第三金属层。 第一金属层相对于从发光层发射的光的峰值波长的反射率高于第二金属层的反射率。 第二金属层相对于透光性基板具有比第一金属层和透光性基板之间的粘合性高的粘接性。