US 2016/0079501 A1Published application

Semiconductor light-emitting device

AssigneeKabushiki Kaisha Toshiba

InventorKyohei SHIBATA

Life of this patent

Estimating the term…

Loading patent…

Abstract

A semiconductor light-emitting device includes first and second semiconductor layer and a light-emitting layer between the first and second semiconductor layers. These layers are on a conductive substrate. A first electrode and a first electrode pad, which are electrically connected to each other, are the first semiconductor layer. A second electrode is between the substrate and the second semiconductor layer. A portion of the second electrode is not covered by the first semiconductor, second semiconductor, and light-emitting layers. A second electrode pad is on the exposed portion of the second electrode. The second electrode pad has a planar area that is less than a planar area of the first electrode pad. A third electrode is on a second surface of the conductive substrate such that the conductive substrate is between the third electrode and the second electrode. The third electrode is electrically connected to the second electrode pad.

Claims17

Dependent claims

A semiconductor light-emitting device, comprising:

a first semiconductor layer;
a second semiconductor layer between the first semiconductor layer and a conductive substrate;
a light-emitting layer between the first semiconductor layer and the second semiconductor layer;
a first electrode on a first surface of the first semiconductor layer, the first semiconductor layer being between the first electrode and the light-emitting layer;
a first electrode pad on the first surface and electrically connected to the first electrode;
a second electrode between the substrate and the second semiconductor layer, a portion of the second electrode not covered by the second semiconductor layer, the light-emitting layer, and the first semiconductor layer;
a second electrode pad on the portion of the second electrode and electrically connected to the second electrode, the second electrode pad having an area in a first plane parallel to the conductive substrate that is less than an area of the first electrode pad in a second plane parallel to the first plane;
and
a third electrode on a second surface of the conductive substrate such that the conductive substrate is between the third electrode and the second electrode, the third electrode being electrically connected to the second electrode pad.

6 more elements

Dependencies are inferred from the claim text.