Abstract:
The invention relates to a method for producing a semiconductor element, especially a thin-layered element. According to the invention, a semi-conductive layer is separated from a substrate by radiation from a laser beam having a plateau-shaped spatial beam profile. Additionally, the semiconductor layer is applied to a support having an adapted thermal dilatation coefficient before being separated. The invention is particularly suitable for semiconductor layers which contain a nitride-compound semiconductor.
Abstract:
The invention relates to two methods for producing a thin-film semiconductor chip based on a III/V-III/V connection semiconductor material, said thin-film semiconductor chip being suitable for generating electromagnetic radiation. According to the first method, an series of active layers (1), capable of generating electromagnetic radiation, is applied to a growth substrate (2), the front face (12) of said series facing the growth substrate (2) and the rear face (11) facing away from the growth substrate (2). At least one dielectric layer (3) is applied to the rear face (11) of the series of active layers (1) as part of a reflective series of layers (51) and energy is applied with the aid of a laser in restricted volumetric areas (8) of the dielectric layer (3) to create at least one opening (4) facing towards the rear face (11) of the active series of layers (1). At least one metallic layer (5) is then applied as an additional part of the reflective series of layers (51) so that the opening (4) is filled with metallic material and at least one rear electrically conductive contact point (6) is configured that faces towards the rear face (11) of the active series of layers (1). A support (8) is then applied to the reflective series of layers (51) and the growth substrate (2) is removed. According to the second method, a reflective series of layers (51) is applied to the active series of layers (1) and energy is then applied with the aid of a laser in a restricted volumetric area (6) of the reflective series of layers (51) to create at least one rear electrically conductive contact point (6) facing towards the rear face (11) of the active series of layers (1).
Abstract:
The invention relates to the production of semiconductor chips (1) using thin-film technology, in which a sequence of active layers is applied to a growth substrate (3) and a structured reflective electrically conductive contact material layer (4) is subsequently configured on said sequence of layers. The sequence of active layers is then structured to form active stacks (2) of layers, in such a way that a reflective electrically conductive contact material layer (4) is present on each active stack (2) of layers. A flexible electrically conductive film (6) is then applied to the contact material layers (4) to act as an auxiliary carrier layer and the growth substrate is removed.
Abstract:
The invention relates to a method for separating two joined layers of material along a boundary surface. The inventive method is characterized by producing, when the layers of material are joined, on the boundary surfaces thereof and/or close to the boundary surface, a plurality of cavities that form a perforated structure between the layers of material.
Abstract:
Es wird ein optoelektronisches Bauelement mit einem Halbleiterkörper (2), der eine Halbleiterschichtenfolge mit einem zur Strahlungserzeugung geeigneten aktiven Bereich (4) aufweist, einer auf dem Halbleiterkörper angeordneten Reflektorschicht (72) und zwei elektrischen Kontakten (7,8) angegeben, wobei ein erster Kontakt (7) der beiden Kontakte auf der der Reflektorschicht zugewandten Seite des aktiven Bereichs elektrisch leitend mit dem Halbleiterkörper verbunden ist, der zweite Kontakt (8) der beiden Kontakte auf der von der Reflektorschicht abgewandten Seite des aktiven Bereichs elektrisch leitend mit dem Halbleiterkörper verbunden ist und die Reflektorschicht zwischen einem Teilbereich des zweiten Kontakts und dem Halbleiterkörper angeordnet ist.
Abstract:
Es wird ein optoelektronisches Bauelement (1) mit einem Halbleiterkörper (2), der einen zur Strahlungserzeugung geeigneten aktiven Bereich (4) aufweist, und mit zwei auf dem Halbleiterkörper angeordneten elektrischen Kontakten (7, 8) angegeben, wobei die Kontakte elektrisch leitend mit dem aktiven Bereich verbunden sind, die Kontakte jeweils eine vom Halbleiterkörper abgewandte Anschlussfläche (70, 80) aufweisen, die Anschlussflächen auf einer Anschlussseite des Bauelements angeordnet sind und eine von der Anschlussseite verschiedene Seite des Bauelements verspiegelt ist. Weiterhin wird ein Verfahren zur Herstellung einer Mehrzahl derartiger Bauelemente angegeben.
Abstract:
The invention relates to an optoelectronic semiconductor chip which emits electromagnetic radiation from its front side (7), comprising: a semiconductor layered construction (1) with an active region (4) suited for generating electromagnetic radiation, and; a separately made TCO supporting substrate (10), which is placed on the semiconductor layered construction, has a material from the group of transparent conducting oxides (TCO) and which mechanically supports the semiconductor layered construction (1).
Abstract:
The invention relates to an optical element (1, 25) having a defined shape and comprising a thermoplastic material that has been further cross-linked during or following the shaping thereof. Such thermoplastic materials have an increased heat distortion, but can be easily and economically shaped before the additional cross-linking as a result of the thermoplastic properties thereof.
Abstract:
Disclosed is a radiation-emitting semiconductor component comprising a layered structure (12) which is provided with a photon-emitting active layer (16), an n-doped cladding layer (14), and a p-doped cladding layer (18), a contact that is connected to the n-doped cladding layer (14), and a reflector layer (20) that is connected to the p-doped cladding layer (18). The inventive reflector layer (20) is formed by an alloy of silver and one or several metals of the group comprising Ru, Rh, Pd, Au, Os, Ir, Pt, Cu, Ti, Ta, and Cr.
Abstract:
The invention relates to a radiation-emitting semiconductor component comprising a layered structure (30) containing an active layer (32) which, when in operation, emits radiation of a spectral distribution (60), and electrical contacts (36,38,40,56) for impressing a current in the layered structure (30). Said component comprises an anti-reflection coating (34,44,54) which at least partially surrounds the active layer (32) and retains a short-wave part of the emitted radiation (60).