Abstract:
The invention relates to an arrangement comprising a semiconductor chip (1) which is designed to emit light during operation as well as a cover layer (2) that lies across from a light-emitting surface of the semiconductor chip (1) such that light emitted by the semiconductor chip (1) penetrates into the cover layer (2). According to the invention, said arrangement is characterized in that a light-deflecting structure is provided in an area of the cover layer (2) that overlaps the chip (1). Said light-deflecting structure deflects the light that penetrates into the cover layer (2) in the direction of the longitudinal extension of the cover layer (2). Furthermore, the coating (2) acts as an optical waveguide and is designed to emit the light in a distributed manner across the top surface of the cover layer (2).
Abstract:
The invention relates to a module comprising a regular arrangement of individual, radiation-emitting semiconductor bodies (1) applied to an assembly surface (6) of a carrier (2). According to the invention, a wire joint between two adjacent, radiation-emitting semiconductor bodies (1) is applied to the upper side of the two radiation-emitting semiconductor bodies (1), opposing the assembly surface (6).
Abstract:
The invention relates to a lighting module comprising at least one thin-film light-emitting diode chip, which is placed on a chip support provided with electrical supply conductors and which has a first and a second electrical connection side and as well as an epitaxially produced semiconductor layered construction. The semiconductor layered construction has an n-conducting semiconductor layer, a p-conducting semiconductor layer, and a region, which is situated between these two semiconductor layers, produces electromagnetic radiation, and which is placed on a support. In addition, the lighting module comprises a reflective layer. This reflective layer is located on a main surface facing the support and reflects at least a portion of the electromagnetic radiation, which is produced in the semiconductor layered construction, back into said the semiconductor layered construction. The semiconductor layered construction comprises at least one semiconductor layer having at least one microstructured rough surface. The decoupling surface of the thin-film light-emitting diode is defined, in essence, by a main surface facing away from the reflective layer and does not contain housing material such as potting material or encapsulating material.
Abstract:
A light-emitting chip (3) comprises a lens-shaped output window (4), the base surface (5) of which is provided with a mirror surface (6). A sequence of layers (9) is arranged on an output surface (7) of the output window (4) with a photon-emitting p-n junction (10). The photons emitted by the p-n junction are reflected at the mirror surface (6) and can leave the output window (4) through the output surface (7).
Abstract:
The invention relates to a method for producing a radiation-emitting semiconductor chip comprising a thin-layer element (11) based on III-V nitride semiconductor material. According to the inventive method, a series of layers of the thin-layer element (11) is deposited onto an epitaxial substrate (100), the thin-layer element is joined to a support (5), and the epitaxial substrate (100) is removed from the thin-layer element. The epitaxial substrate (100) comprises a substrate body (1), which is made of PolySiC or PolyGaN or of SiC, GaN or sapphire and which is joined to an epitaxial growth layer (2) by means of an adhesive layer (3), and the series of layers of the thin-layer element is epitaxially deposited on said epitaxial growth layer. The invention also relates to a radiation-emitting semiconductor chip that is produced in the aforementioned manner.
Abstract:
According to the invention, the longitudinal sides of semiconductor chips (1) for high-performance luminescent diodes are considerably longer than the transverse sides. This improves the coupling out of light considerably.