摘要:
A technique for fabricating an epitaxial component layer sequence based on a first III/V compound semiconductor material system with a first group V element on a substrate or a buffer layer, which comprises a material based on a second III/V compound semiconductor material system with a second group V element, which is different from the first group V element. At least one layer sequence with a first and a second III/V compound semiconductor material layer is applied to the substrate or to the buffer layer before the application of the epitaxial component layer sequence, the first and second III/V compound semiconductor material layers having different compositions from one another and containing both the first and the second group V elements.
摘要:
A technique for fabricating an epitaxial component layer sequence based on a first III/V compound semiconductor material system with a first group V element on a substrate or a buffer layer, which comprises a material based on a second III/V compound semiconductor material system with a second group V element, which is different from the first group V element. At least one layer sequence with a first and a second III/V compound semiconductor material layer is applied to the substrate or to the buffer layer before the application of the epitaxial component layer sequence, the first and second III/V compound semiconductor material layers having different compositions from one another and containing both the first and the second group V elements.
摘要:
A method of producing an optoelectronic semiconductor chip having a semiconductor layer stack based on a material system AlInGaP includes preparing a growth substrate having a silicon surface, arranging a compressively relaxed buffer layer stack on the growth substrate, and metamorphically, epitaxially growing the semiconductor layer stack on the buffer layer stack, the semiconductor layer stack having an active layer that generates radiation.
摘要:
An optoelectronic semiconductor component includes an active layer that emits radiation, the active layer surrounded by cladding layers, wherein the cladding layers and/or the active layer include(s) an indium-containing phosphide compound semiconductor material and the phosphide compound semiconductor material contains at least one of elements Bi or Sb as an additional element of main group V.
摘要:
A layer depositing device comprises a chamber (10) having a substrate carrier (12) for receiving at least one substrate (13) to be coated, and a process gas space (11), comprising a partition (23) that separates a first segment (21) of the process gas space (11) from a second segment (22) of the process gas space (11). The layer depositing device has a device (44) for moving the substrate (13) relative to the partition (23).
摘要:
An LED semiconductor body includes a semiconductor layer sequence which comprises a quantum structure which is intended to produce radiation and comprises at least one quantum layer and at least one barrier layer, wherein the quantum layer and the barrier layer are strained with mutually opposite mathematical signs.
摘要:
A monolithically integrated laser diode chip having a construction as a multiple beam laser diode, which, on a semiconductor substrate (3) comprised of GaAs, has at least two laser stacks (4a, 4b, 4c) which are arranged one above another and which each contain an active zone (7). The active zone (7) is in each case arranged between waveguide layers (8). The waveguide layers (8) each adjoin a cladding layer (6) at a side remote from the active zone. At least one of the waveguide layers (8) or cladding layers (6) of at least one laser stack (4a, 4b, 4c), comprises AlxGa1-xAs, where 0≦x≦1, and at least one additional material from main group III or V, such that the lattice mismatch between the at least one waveguide layer (8) or cladding layer (6) comprising the at least one additional element and the semiconductor substrate (3) composed of GaAs is reduced. This increases the lifetime of the laser diode chip.
摘要翻译:具有构造为多光束激光二极管的单片集成激光二极管芯片,其在由GaAs构成的半导体衬底(3)上具有至少两个激光堆叠(4a,4b,4c) 每个都包含活动区域(7)。 有源区(7)分别布置在波导层(8)之间。 每个波导层(8)在远离有源区的一侧与包层(6)相邻。 至少一个激光堆叠(4a,4b,4c)的至少一个波导层(8)或覆层(6)包括Al x Ga 1-x As,其中0≤x≤1,以及至少一种附加材料 来自主组III或V,使得包括至少一个附加元件的至少一个波导层(8)或包层(6)与由GaAs构成的半导体衬底(3)之间的晶格失配减小。 这增加了激光二极管芯片的寿命。
摘要:
A laser diode component comprising a laser diode bar on which a specific operating voltage is impressed during operation and with which a bridging element is connected in parallel, which bridging element is in a current-blocking state when the specific operating voltage is impressed on the associated laser diode bar and which bridging element changes over to a current-conducting state as soon as the voltage drop across the laser diode bar exceeds the operating voltage by a predefined voltage value. A circuit arrangement comprising a plurality of such laser diode components which are connected in series is furthermore specified.
摘要:
A method of producing an optoelectronic semiconductor chip having a semiconductor layer stack based on a material system AlInGaP includes preparing a growth substrate having a silicon surface, arranging a compressively relaxed buffer layer stack on the growth substrate, and metamorphically, epitaxially growing the semiconductor layer stack on the buffer layer stack, the semiconductor layer stack having an active layer that generates radiation.
摘要:
An LED semiconductor body includes a semiconductor layer sequence which comprises a quantum structure which is intended to produce radiation and comprises at least one quantum layer and at least one barrier layer, wherein the quantum layer and the barrier layer are strained with mutually opposite mathematical signs.