摘要:
A method for fabricating a radiation-emitting semiconductor chip having a thin-film element based on III-V nitride semiconductor material includes the steps of depositing a layer sequence of a thin-film element on an epitaxy substrate. The thin-film element is joined to a carrier, and the epitaxy substrate is removed from the thin-film element. The epitaxy substrate has a substrate body made from PolySiC or PolyGaN or from SiC, GaN or sapphire, which is joined to a grown-on layer by a bonding layer, and on which the layer sequence of the thin-film element is deposited by epitaxy.
摘要:
A method for fabricating a radiation-emitting semiconductor chip having a thin-film element based on III–V nitride semiconductor material includes the steps of depositing a layer sequence of a thin-film element on an epitaxy substrate. The thin-film element is joined to a carrier, and the epitaxy substrate is removed from the thin-film element. The epitaxy substrate has a substrate body made from PolySiC or PolyGaN or from SiC, GaN or sapphire, which is joined to a grown-on layer by a bonding layer, and on which the layer sequence of the thin-film element is deposited by epitaxy.
摘要:
An LED chip comprising an electrically conductive and radioparent substrate, in which the epitaxial layer sequence (3) is provided on substantially the full area of its p-side (9) with a reflective, bondable p-contact layer (6). The substrate (2) is provided on its main surface (10) facing away from the epitaxial layer sequence (3) with a contact metallization (7) that covers only a portion of said main surface (10), and the decoupling of light from the chip (1) takes place via a bare region of the main surface (10) of the substrate (2) and via the chip sides (14). A further LED chip has epitaxial layers only. The p-type epitaxial layer (5) is provided on substantially the full area of the main surface (9) facing away from the n-conductive epitaxial layer (4) with a reflective, bondable p-contact layer (6), and the n-conductive epitaxial layer (4) is provided on its main surface facing away from the p-conductive epitaxial layer (5) with an n-contact layer (7) that covers only a portion of said main surface (8). The decoupling of light from the chip (1) takes place via the bare region of the main surface (8) of the n-conductive epitaxial layer (4) and via the chip sides (14).
摘要:
This invention describes a radiation-emitting semiconductor component based on GaN, whose semiconductor body is made up of a stack of different GaN semiconductor layers (1). The semiconductor body has a first principal surface (3) and a second principal surface (4), with the radiation produced being emitted through the first principal surface (3) and with a reflector (6) being produced on the second principal surface (4).The invention also describes a production method for a semiconductor component pursuant to the invention. An interlayer (9) is first applied to a substrate (8), and a plurality of GaN layers (1) that constitute the semiconductor body of the component are then applied to this. The substrate (8) and the interlayer (9) are then detached and a reflector (6) is produced on a principal surface of the semiconductor body.
摘要:
This invention describes a radiation-emitting semiconductor component based on GaN, whose semiconductor body is made up of a stack of different GaN semiconductor layers (1). The semiconductor body has a first principal surface (3) and a second principal surface (4), with the radiation produced being emitted through the first principal surface (3) and with a reflector (6) being produced on the second principal surface (4).The invention also describes a production method for a semiconductor component pursuant to the invention. An interlayer (9) is first applied to a substrate (8), and a plurality of GaN layers (1) that constitute the semiconductor body of the component are then applied to this. The substrate (8) and the interlayer (9) are then detached and a reflector (6) is produced on a principal surface of the semiconductor body.
摘要:
A radiation-emitting semiconductor component has a high p-type conductivity. The semiconductor body of the component includes a substrate, preferably an SiC-based substrate, on which a plurality of GaN-based layers have been formed. The active region of these layers is arranged between at least one n-conducting layer and a p-conducting layer. The p-conducting layer is grown in tensile-stressed form. The p-doping that is used is preferably Mg.
摘要:
An illumination module with at least one thin-film light emitting diode chip which is applied on a chip carrier having electrical connecting conductors and has a first and a second electrical connection side and also an fabricated semiconductor layer sequence. The semiconductor layer sequence has an n-conducting semiconductor layer, a p-conducting semiconductor layer and an electromagnetic radiation generating region arranged between these two semiconductor layers and is arranged on a carrier. Moreover, it has a reflective layer at a main area facing toward the carrier, which reflective layer reflects at least one part of the electromagnetic radiation generated in the semiconductor layer sequence back into the latter. The semiconductor layer sequence has at least one semiconductor layer with at least one micropatterned, rough area. The coupling-out area of the thin-film light emitting diode chip is essentially defined by a main area remote from the reflective layer and is free of housing material such as potting or encapsulating material.
摘要:
An optical semiconductor device with a multiple quantum well structure, is set out in which well layers and barrier layers, comprising various types of semiconductor layers, are alternately layered. The device well layers comprise a first composition based on a nitride semiconductor material with a first electron energy. The barrier layers comprise a second composition of a nitride semiconductor material with electron energy which is higher in comparison to the first electron energy. The well and barrier layers are in the direction of growth, by a radiation-active quatum well layer which with the essentially non-radiating well layers (6a) and the barrier layers (6b), arranged in front, form a supperlattice.
摘要:
A light-emitting diode chip (1) comprises a GaN-based, radiation-emitting epitaxial layer sequence (3), an active region (19), an n-doped layer (4) and a p-doped layer (5). The p-doped layer (5) is provided, on its main surface (9) facing away from the active region (19), with a reflective contact metallization (6) comprising a radioparent contact layer (15) and a reflective layer (16). Methods for fabricating LED chips of this type by thin-film technology are provided, as are LED components containing such LED chips.
摘要:
A light-emitting diode chip comprises a GaN-based, radiation-emitting epitaxial layer sequence, an active region, an n-doped layer and a p-doped layer. The p-doped layer is provided, on its main surface facing away from the active region, with a reflective contact metallization comprising a radioparent contact layer and a reflective layer. Methods for fabricating LED chips of this type by thin-film technology are provided, as are LED components containing such LED chips.