Patent ID: 9640722
Date: 2017-05-02
CPC Classifications: H01L

Claim:
1. A semiconducting structure configured to emit electromagnetic radiation, the structure comprising: a first zone with a first type of conductivity and a second zone with a second type of conductivity respectively opposite to each other, the first and second zones being connected to each other to form a semiconducting junction, the junction extending along a junction plane, wherein the first zone comprises at least a first part and a second part, such that the second part is a part through which the first zone is connected to the second zone, the first part and the second part being separated from each other by an intermediate spreading layer, extending approximately parallel to the junction plane along a major part of the junction, the spreading layer being configured to cause spreading of carriers along directions included in a plane of the spreading layer, wherein the spreading layer has a higher resistivity than the first part of the first zone over an entire thickness of the spreading layer, wherein the spreading layer is formed of a single semiconducting material, and wherein the first part of the first zone is a layer approximately parallel to the junction plane, the first part having a resistivity ρ