Light-emitting element
AssigneeNichia Corporation
InventorsEiji Muramoto, Kosuke Yoshioka
Life of this patent
Estimating the term…
Abstract
A shortest distance between a first p-side electrode and a second p-side connection portion is greater than a shortest distance between the first p-side electrode and a closest one of first n-side connection portions most proximate to the first p-side electrode among a plurality of first n-side connection portions in the plan view. The second p-side electrode is located at least in a region between the first p-side electrode and the closest one of the first n-side connection portions in the plan view.
Claims12
A light-emitting element having a quadrilateral shape in a plan view, comprising:
- a semiconductor structure body including
- an n-side layer,
- a p-side layer, and
- an active layer positioned between the n-side layer and the p-side layer,
- the n-side layer including a plurality of first regions exposed from the active layer and the p-side layer in the plan view;
- a first p-side electrode located outside the semiconductor structure body in the plan view;
- a second p-side electrode located on a side of a surface of the p-side layer opposite to a surface on which the active layer is located;
- a p-side wiring layer including
- a first p-side connection portion connected with the first p-side electrode, and
- at least one second p-side connection portion connected with the second p-side electrode, the at least one second p-side connection portion overlapping an intersection point of diagonals of the quadrilateral shape of the light-emitting element in the plan view;
- and
- an n-side wiring layer including a plurality of first n-side connection portions connected to the plurality of first regions of the n-side layer, wherein in the plan view, a shortest distance between the first p-side electrode and the at least one second p-side connection portion is greater than a shortest distance between the first p-side electrode and a closest one of the plurality of first n-side connection portions that is most proximate to the first p-side electrode among the plurality of first n-side connection portions,
- in the plan view, the second p-side electrode is located at least in a region between the first p-side electrode and the closest one of the plurality of first n-side connection portions.
A light-emitting element comprising:
- a semiconductor structure body including
- an n-side layer,
- a p-side layer, and
- an active layer positioned between the n-side layer and the p-side layer,
- the n-side layer including a plurality of first regions exposed from the active layer and the p-side layer in a plan view;
- a first p-side electrode located outside the semiconductor structure body in the plan view;
- a first n-side electrode located outside the semiconductor structure body in the plan view;
- a second p-side electrode located on a side of a surface of the p-side layer opposite to a surface of the p-side layer on which the active layer is located;
- a p-side wiring layer including
- a first p-side connection portion connected with the first p-side electrode, and
- at least one second p-side connection portion connected with the second p-side electrode;
- and
- an n-side wiring layer including a plurality of first n-side connection portions connected to the plurality of first regions of the n-side layer, wherein
- the p-side wiring layer includes a plurality of first openings that overlap the plurality of first regions in the plan view,
- the plurality of first openings having mutually-different areas are arranged on a first axis connecting the first p-side electrode and the first n-side electrode with a shortest distance in the plan view,
- an area of one of the plurality of first openings positioned at a first distance from the first p-side electrode is greater than an area of one of the plurality of first openings positioned at a second distance from the first p-side electrode in the plan view,
- the second distance is greater than the first distance,
- each of the first distance and the second distance is a shortest distance between the first p-side electrode and a respective one of the first openings,
- the first distance is the shortest among shortest distances between the first p-side electrode and the plurality of first openings, respectively.
A light-emitting element comprising:
- a semiconductor structure body including
- an n-side layer,
- a p-side layer, and
- an active layer positioned between the n-side layer and the p-side layer,
- the n-side layer including a plurality of first regions exposed from the active layer and the p-side layer in a plan view;
- a first p-side electrode located outside the semiconductor structure body in the plan view;
- a second p-side electrode located on a side of a surface of the p-side layer opposite to a surface on which the active layer is located;
- a p-side wiring layer including
- a first p-side connection portion connected with the first p-side electrode, and
- at least one second p-side connection portion connected with the second p-side electrode;
- and
- an n-side wiring layer including a plurality of first n-side connection portions connected to the plurality of first regions of the n-side layer, wherein
- in the plan view, a shortest distance between the first p-side electrode and the at least one second p-side connection portion is greater than a shortest distance between the first p-side electrode and a closest one of the plurality of first n-side connection portions that is most proximate to the first p-side electrode among the plurality of first n-side connection portions,
- in the plan view, the second p-side electrode is located at least in a region between the first p-side electrode and the closest one of the plurality of first n-side connection portions,
- the at least one second p-side connection portion is one of a plurality of second p-side connection portions, and
- the plurality of second p-side connection portions are spaced apart from each other in the plan view,
- the plurality of second p-side connection portions include
- at least one second p-side connection portion to which a shortest distance from the first p-side electrode is a third distance, and
- at least one second p-side connection portion to which a shortest distance from the first p-side electrode is a fourth distance greater than the third distance,
- the third distance is the shortest among shortest distances between the first p-side electrode and respective ones of the second p-side connection portions, and
- in the plan view, an area of the at least one second p-side connection portion to which the shortest distance from the first p-side electrode is the third distance is less than an area of the at least one second p-side connection portion to which the shortest distance from the first p-side electrode is the fourth distance.
Dependencies are inferred from the claim text.