摘要:
Proposed is an epitaxial substrate, particularly for making thin-film semiconductor chips based on III-V semiconductors, comprising a sacrificial layer that is applied to a wafer substrate and whose band gap is smaller than the band gap of the surrounding substrate, and a method of making the epitaxial substrate. Further described is a method of making a thin-film semiconductor chip, particularly an LED, wherein an epitaxial substrate is prepared, wherein at least one LED structure is grown on said epitaxial substrate and the LED structure is bonded to an acceptor substrate, and wherein the semiconductor wafer is released by at least partially destroying the sacrificial layer, and the at least one LED structure is singulated.
摘要:
An optoelectronic semiconductor chip includes an active layer with a first and a second major face, including a semiconductor material which emits or receives radiation when the semiconductor chip is in operation; a patterned layer including three-dimensional patterns for outcoupling or incoupling radiation and arranged on the first major face in a beam path of the radiation, wherein the patterned layer includes an inorganic-organic hybrid material.
摘要:
A radiation-emitting semiconductor component, having a layer structure which includes an active layer which, in operation, emits radiation with a spectral distribution, and electrical contacts for applying a current to the layer structure, includes a coating layer which at least partially surrounds the active layer and holds back a short-wave component of the emitted radiation.
摘要:
A radiation-emitting semiconductor component, having a layer structure which includes an active layer which, in operation, emits radiation with a spectral distribution, and electrical contacts for applying a current to the layer structure, includes a coating layer which at least partially surrounds the active layer and holds back a short-wave component of the emitted radiation.
摘要:
A radiation-emitting semiconductor component, having a layer structure (30) which includes an active layer (32) which, in operation, emits radiation with a spectral distribution (60), and electrical contacts (36, 38, 40) for applying a current to the layer structure (30), includes a coating layer (44) which at least partially surrounds the active layer (32) and holds back a short-wave component of the emitted radiation (60).
摘要:
An optoelectronic semiconductor device includes an optoelectronic semiconductor layer sequence on a metal carrier element, which includes as a first component silver and as a second component a material having a lower coefficient of thermal expansion than silver, wherein the first and second components are intermixed in the metal carrier element.
摘要:
A method for producing a semiconductor component, in particular a thin-film component, a semiconductor layer being separated from a substrate by irradiation with a laser beam having a plateaulike spatial beam profile. Furthermore, the semiconductor layer, prior to separation, is applied to a carrier with an adapted thermal expansion coefficient. The method is suitable in particular for semiconductor layers containing a nitride compound semiconductor.
摘要:
An optoelectronic semiconductor chip includes a semiconductor body containing an active region, a mirror layer, and contact points arranged between the semiconductor body and the mirror layer and providing a spacing D between the semiconductor body and the mirror layer, whereby at least one cavity is formed between the mirror layer and the semiconductor body and the at least one cavity contains a gas.
摘要:
A device comprising a first component (5) having a first surface (6), a second component (8) having a second surface (9) and a connection layer (7) between the first surface (6) of the first component (5) and the second surface (9) of the second component (8), wherein the connection layer (7) comprises an electrically insulating adhesive and there is an electrically conductive contact between the first surface (6) of the first component (5) and the second surface (9) of the second component (8).
摘要:
A semiconductor chip, particularly a radiation-emitting semiconductor chip, comprises an active thin-film layer in which a photon-emitting zone is formed, and a carrier substrate for the thin-film layer is arranged at a side of the thin-film layer faces away from the emission direction and is connected to it. At least one cavity via which a plurality of mesas is fashioned at the boundary between carrier substrate and thin-film layer is fashioned in the active thin-film layer proceeding from the carrier substrate.