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.
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.
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:
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:
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:
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 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:
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.