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公开(公告)号：US20050116215A1
公开(公告)日：2005-06-02
申请号：US10974348
申请日：2004-10-27
CPC分类号： B82Y20/00 , H01S5/0213 , H01S5/3407 , H01S5/34333 , H01S2304/00
摘要： A semiconductor light-emitting device fabricated in a nitride material system has an active region (5) disposed over a substrate (1). The active region (5) comprises a first aluminium-containing layer (12) forming the lowermost layer of the active region, a second aluminium-containing layer (14) forming the uppermost layer of the active region, and at least one InGaN quantum well layer (13) disposed between the first aluminium-containing layer (12) and the second aluminum-containing layer (14). The aluminium-containing layers (12,14) provide improved carrier confinement in the active region (5), and so increase the output optical power of the device. The invention may be applied to a light-emitting diode (11) or to a laser diode.
摘要翻译： 在氮化物材料系统中制造的半导体发光器件具有设置在衬底（1）上方的有源区（5）。 有源区（5）包括形成有源区最下层的第一含铝层（12），形成有源区最上层的第二含铝层（14）和至少一个InGaN量子阱 设置在第一含铝层（12）和第二含铝层（14）之间的层（13）。 含铝层（12,14）在有源区（5）中提供改进的载流子限制，从而增加了器件的输出光功率。 本发明可以应用于发光二极管（11）或激光二极管。
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公开(公告)号：US20060237740A1
公开(公告)日：2006-10-26
申请号：US10525406
申请日：2003-08-18
CPC分类号： C30B23/02 , C30B29/403 , C30B29/406 , H01L21/0237 , H01L21/02389 , H01L21/02458 , H01L21/0254 , H01L21/0262 , H01L21/02631
摘要： A method of growing an AlGaN semiconductor layer structure by Molecular Beam Epitaxy comprises supplying ammonia, gallium and aluminium to a growth chamber thereby to grow a first (Al,Ga)N layer by MBE over a substrate disposed in the growth chamber. The first (Al,Ga)N layer has a non-zero aluminium mole fraction. Ammonia is supplied at a beam equivalent pressure of at least 1 10−4 mbar, gallium is supplied at a beam equivalent pressure of at least 1 10−8 mbar and aluminium is supplied at a beam equivalent pressure of at least 1 10−8 mbar during the growth step. Once the first (Al,Ga)N layer has been grown, varying the supply rate of gallium and/or aluminium enables a second (Al,Ga)N layer, having a different aluminium mole fraction from the first (Al,Ga)N layer to be grown by MBE over the first (Al,Ga)N layer. This process may be repeated to grown an (Al,Ga)N multilayer structure.
摘要翻译： 通过分子束外延生长AlGaN半导体层结构的方法包括向生长室供应氨，镓和铝，从而通过MBE在设置在生长室中的衬底上生长第一（Al，Ga）N层。 第一（Al，Ga）N层具有非零的铝摩尔分数。 以至少1×10 -4巴的光束当量压力供应氨，镓以至少1×10 -8巴的光束当量压力供应，铝是 在生长步骤期间以至少1×10 -8 mbar的束当量压力供应。 一旦生长了第一（Al，Ga）N层，则改变镓和/或铝的供应速率使得能够形成具有与第一（Al，Ga）N不同的铝摩尔分数的第二（Al，Ga）N层 层由MBE在第一（Al，Ga）N层上生长。 可以重复该过程以生长（Al，Ga）N多层结构。
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公开(公告)号：US20050163179A1
公开(公告)日：2005-07-28
申请号：US10974207
申请日：2004-10-27
IPC分类号： H01S5/343 , H01L21/203 , H01S5/30 , H01S5/323 , H01S5/00
CPC分类号： H01S5/32341 , H01L21/02389 , H01L21/0242 , H01L21/02458 , H01L21/02505 , H01L21/0254 , H01L21/02631 , H01S2304/02
摘要： A method of fabricating a continuous wave semiconductor laser diode in the (Al,Ga,In)N materials system comprises: growing, in sequence, a first cladding region (4), a first optical guiding region (5), an active region (6), a second optical guiding region (7) and a second cladding region (8). Each of the first cladding region (4), the first optical guiding region (5), the active region (6), the second optical guiding region (7) and the second cladding region (8) is deposited by molecular beam epitaxy.
摘要翻译： （Al，Ga，In）N材料系统中制造连续波半导体激光二极管的方法包括：依次生长第一包层区域（4），第一光导区域（5），有源区域 6），第二光导区域（7）和第二包层区域（8）。 第一包层区域（4），第一导光区域（5），有源区域（6），第二光导区域（7）和第二包层区域（8）中的每一个通过分子束外延沉积。
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公开(公告)号：US20050249253A1
公开(公告)日：2005-11-10
申请号：US11030791
申请日：2005-01-07
CPC分类号： H01S5/227 , H01L33/007 , H01S5/0213 , H01S5/2215 , H01S5/2224 , H01S5/2275 , H01S5/32341 , H01S2301/173
摘要： A semiconductor light-emitting device and a method of manufacture thereof A method of manufacturing a semiconductor light-emitting device comprises selectively etching a semiconductor layer structure (16) fabricated in a nitride materials system and including an aluminium-containing cladding region or an aluminium-containing optical guiding region (5). The etching step forms a mesa (17), and also exposes one or more portions of the aluminium-containing cladding region or the aluminium-containing optical guiding region (5). The or each exposed portion of the aluminium-containing cladding region or the aluminium-containing optical guiding region (5) Is then oxidised to form a current blocking layer (18) laterally adjacent to and extending laterally from the mesa. When an electrically conductive contact layer (11) is deposited, the current blocking layer (18) will prevent the contact layer (11) from making direct contact with the buffer layer (3).
摘要翻译： 一种半导体发光器件及其制造方法。一种制造半导体发光器件的方法包括：选择性地蚀刻在氮化物材料体系中制造的半导体层结构（16），并且包括含铝包层区域或铝 - （5）。 蚀刻步骤形成台面（17），并且还暴露含铝包层区域或含铝光导区域（5）的一个或多个部分。 然后，含铝包覆区域或含铝光导区域（5）的暴露部分或含铝的光导引区域（5）被氧化以形成横向邻近并从台面横向延伸的电流阻挡层（18）。 当沉积导电接触层（11）时，电流阻挡层（18）将防止接触层（11）与缓冲层（3）直接接触。
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公开(公告)号：US20050170537A1
公开(公告)日：2005-08-04
申请号：US10974226
申请日：2004-10-27
CPC分类号： B82Y20/00 , H01L33/007 , H01L33/06 , H01S5/0213 , H01S5/34333 , H01S2304/00 , H01S2304/02
摘要： A method of fabricating the active region of a semiconductor light-emitting device, in which the active region comprises a plurality of barrier layers (11,13,15,17) with each pair of barrier layers being separated by a quantum well layer (12,14,16), comprises annealing each barrier layer (11,13,15,17) separately. Each barrier layer (11,13,15,17) is annealed once it has been grown, and before a layer is grown over the barrier layer. A device grown by the method of the invention has a significantly higher optical power output than a device made by a convention fabrication process having a single annealing step.
摘要翻译： 一种制造半导体发光器件的有源区的方法，其中有源区包括多个势垒层（11,13,15,17），其中每对势垒层被量子阱层（12 ，14,16）包括分别对每个阻挡层（11,13,15,17）进行退火。 一旦其已经生长，并且在层在阻挡层上生长之后，每个阻挡层（11,13,15,17）被退火。 通过本发明的方法生长的器件具有比通过具有单一退火步骤的常规制造工艺制造的器件显着更高的光功率输出。
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公开(公告)号：US20060121637A1
公开(公告)日：2006-06-08
申请号：US10536706
申请日：2003-11-27
IPC分类号： H01L21/00
CPC分类号： C30B23/02 , C30B29/403 , C30B29/406 , H01L21/0237 , H01L21/02389 , H01L21/02458 , H01L21/0254 , H01L21/02579 , H01L21/0262
摘要： A method of growing a p-type nitride semiconductor material by molecular beam epitaxy (MBE) uses bis(cyclopentadienyl)magnesium (Cp2Mg) as the source of magnesium dopant atoms. Ammonia gas is used as the nitrogen precursor for the MBE growth process. To grow p-type GaN, for example, by the method of the invention, gallium, ammonia and Cp2Mg are supplied to an MBE growth chamber; to grow p-type AlGaN, aluminium is additionally supplied to the growth chamber. The growth process of the invention produces a p-type carrier concentration, as measured by room temperature Hall effect measurements, of up to 2 1017 cm-3, without the need for any post-growth step of activating the dopant atoms.
摘要翻译： 通过分子束外延（MBE）生长p型氮化物半导体材料的方法使用双（环戊二烯基）镁（Cp2Mg）作为镁掺杂剂原子的来源。 使用氨气作为MBE生长过程的氮前体。 为了生长p型GaN，例如，通过本发明的方法，将镓，氨和Cp2Mg供给至MBE生长室; 为了生长p型AlGaN，另外向生长室供给铝。 本发明的生长方法通过室温霍尔效应测量产生高达2×1017cm-3的p型载流子浓度，而不需要任何激活掺杂剂原子的后期生长步骤。
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公开(公告)号：US20050227404A1
公开(公告)日：2005-10-13
申请号：US11082586
申请日：2005-03-17
IPC分类号： H01L21/461 , H01L33/36
CPC分类号： H01L33/36 , H01L2933/0016
摘要： A method of manufacturing a semiconductor light-emitting device is provided. The method includes the step of depositing an electrically conductive material on one or more selected portions of the surface of a semiconductor wafer including a substrate and a layer structure, the layer structure having at least a first semiconductor layer of a first conductivity type and a second semiconductor conductivity layer of a second conductivity type different from the first conductivity type, the first layer being between the second layer and the substrate, such that the electrically conductive material forms a contact to the first semiconductor layer. The method further includes the step of dicing the wafer to form a plurality of light-emitting devices, each light-emitting device having a respective part of the electrically conductive material.
摘要翻译： 提供一种制造半导体发光器件的方法。 该方法包括在包括衬底和层结构的半导体晶片的表面的一个或多个选定部分上沉积导电材料的步骤，该层结构具有至少第一导电类型的第一半导体层和第二导电类型的第二半导体层 不同于第一导电类型的第二导电类型的半导体导电层，第一层在第二层和衬底之间，使得导电材料与第一半导体层形成接触。 该方法还包括切割晶片以形成多个发光器件的步骤，每个发光器件具有导电材料的相应部分。
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公开(公告)号：US07569862B2
公开(公告)日：2009-08-04
申请号：US11030791
申请日：2005-01-07
IPC分类号： H01L33/00
CPC分类号： H01S5/227 , H01L33/007 , H01S5/0213 , H01S5/2215 , H01S5/2224 , H01S5/2275 , H01S5/32341 , H01S2301/173
摘要： A method of manufacturing a semiconductor light-emitting device comprises selectively etching a semiconductor layer structure (16) fabricated in a nitride materials system and including an aluminum-containing cladding region or an aluminum-containing optical guiding region (5). The etching step forms a mesa (17), and also exposes one or more portions of the aluminum-containing cladding region or the aluminum-containing optical guiding region (5). The or each exposed portion of the aluminum-containing cladding region or the aluminum-containing optical guiding region (5) is then oxidized to form a current blocking layer (18) laterally adjacent to and extending laterally from the mesa. When an electrically conductive contact layer (11) is deposited, the current blocking layer (18) will prevent the contact layer (11) from making direct contact with the buffer layer (3).
摘要翻译： 一种制造半导体发光器件的方法包括选择性地蚀刻在氮化物材料体系中制造并包括含铝包层区域或含铝光导区域（5）的半导体层结构（16）。 蚀刻步骤形成台面（17），并且还暴露含铝包层区域或含铝光导区域（5）的一个或多个部分。 然后将含铝包覆区域或含铝光导区域（5）的暴露部分或每个暴露部分氧化，以形成横向邻近并从台面横向延伸的电流阻挡层（18）。 当沉积导电接触层（11）时，电流阻挡层（18）将防止接触层（11）与缓冲层（3）直接接触。
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公开(公告)号：US20060128122A1
公开(公告)日：2006-06-15
申请号：US10525499
申请日：2003-08-18
CPC分类号： C30B23/02 , C30B29/403 , C30B29/406 , H01L21/0237 , H01L21/02389 , H01L21/02458 , H01L21/0254 , H01L21/0262 , H01L21/02631 , H01L33/007
摘要： A method of MBE growth of a semiconductor layer structure comprises growing a first (Al,Ga)N layer (step 13) over a substrate at the first substrate temperature (T1) using ammonia as the nitrogen precursor. The substrate is then cooled (step 14) to a second-substrate temperature (T2) which is lower than the first substrate temperature. An (In,Ga)N quantum well structure is then grown (step 15) over the first (Al,Ga)N layer by MBE using ammonia as the nitrogen precursor. The supply of ammonia to the substrate is maintained continuously during the first growth step, the cooling step, and the second growth step. After completion of the growth of the (In,Ga)N quantum well structure, the substrate may be heated to a third temperature (T3) which is greater than the second substrate temperature (T2). A second (Al,Ga)N layer is then grown over the (In,Ga)N quantum well structure (step 17).
摘要翻译： 半导体层结构的MBE生长的方法包括使用氨作为氮前体在第一衬底温度（T 1）下在衬底上生长第一（Al，Ga）N层（步骤13）。 然后将衬底冷却（步骤14）至低于第一衬底温度的第二衬底温度（T 2）。 然后通过使用氨作为氮前体的MBE在第一（Al，Ga）N层上生长（In，Ga）N量子阱结构（步骤15）。 在第一生长步骤，冷却步骤和第二生长步骤期间，向基材供应氨持续保持。 在（In，Ga）N量子阱结构的生长完成之后，可以将衬底加热到大于第二衬底温度（T 2）的第三温度（T 3）。 然后在（In，Ga）N量子阱结构上生长第二（Al，Ga）N层（步骤17）。
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10.发明授权公开(公告)号：US07375367B2
公开(公告)日：2008-05-20
申请号：US10974348
申请日：2004-10-27
IPC分类号： H01L29/06
CPC分类号： B82Y20/00 , H01S5/0213 , H01S5/3407 , H01S5/34333 , H01S2304/00
摘要： A semiconductor light-emitting device fabricated in a nitride material system has an active region disposed over a substrate. The active region comprises a first aluminium-containing layer forming the lowermost layer of the active region, a second aluminium-containing layer forming the uppermost layer of the active region, and at least one InGaN quantum well layer disposed between the first aluminium-containing layer and the second aluminum-containing layer. The aluminium-containing layers provide improved carrier confinement in the active region, and so increase the output optical power of the device.
摘要翻译： 在氮化物材料系统中制造的半导体发光器件具有设置在衬底上的有源区域。 有源区包括形成有源区的最下层的第一含铝层，形成有源区的最上层的第二含铝层和设置在第一含铝层之间的至少一个InGaN量子阱层 和第二含铝层。 含铝层在有源区域中提供改进的载流子限制，因此增加了器件的输出光功率。
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