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    • 2. 发明申请
    • Laser diode and method for fabricating same
    • 激光二极管及其制造方法
    • US20080112452A1
    • 2008-05-15
    • US11600604
    • 2006-11-15
    • Arpan ChakrabortyMonica HansenSteven DenbaarsShuji NakamuraGeorge Brandes
    • Arpan ChakrabortyMonica HansenSteven DenbaarsShuji NakamuraGeorge Brandes
    • H01S5/00H01L21/00
    • H01S5/34333B82Y20/00H01S5/2004H01S5/3406
    • A laser diode and method for fabricating same, wherein the laser diode generally comprises an InGaN compliance layer on a GaN n-type contact layer and an AlGaN/GaN n-type strained super lattice (SLS) on the compliance layer. An n-type GaN separate confinement heterostructure (SCH) is on said n-type SLS and an InGaN multiple quantum well (MQW) active region is on the n-type SCH. A GaN p-type SCH on the MQW active region, an AlGaN/GaN p-type SLS is on the p-type SCH, and a p-type GaN contact layer is on the p-type SLS. The compliance layer has an In percentage that reduces strain between the n-type contact layer and the n-type SLS compared to a laser diode without the compliance layer. Accordingly, the n-type SLS can be grown with an increased Al percentage to increase the index of refraction. This along with other features allows for reduced threshold current and voltage operation.
    • 一种激光二极管及其制造方法,其中激光二极管通常包括在GaN n型接触层上的InGaN柔性层和在柔性层上的AlGaN / GaN n型应变超晶格(SLS)。 n型GaN分离限制异质结构(SCH)在所述n型SLS上,并且InGaN多量子阱(MQW)有源区在n型SCH上。 在MQW有源区上的GaN p型SCH,AlGaN / GaN p型SLS在p型SCH上,p型GaN接触层在p型SLS上。 顺应层具有与不具有柔顺层的激光二极管相比,n型接触层和n型SLS之间的应变的In百分比。 因此,n型SLS可以以增加的Al百分数生长以增加折射率。 这与其他功能一起允许降低阈值电流和电压操作。
    • 4. 发明申请
    • LASER DIODE AND METHOD FOR FABRICATING SAME
    • 激光二极管及其制造方法
    • US20100273281A1
    • 2010-10-28
    • US12826305
    • 2010-06-29
    • ARPAN CHAKRABORTYMonica HansenSteven DenbaarsShuji NakamuraGeorge Brandes
    • ARPAN CHAKRABORTYMonica HansenSteven DenbaarsShuji NakamuraGeorge Brandes
    • H01L21/20
    • H01S5/34333B82Y20/00H01S5/2004H01S5/3406
    • A laser diode and method for fabricating same, wherein the laser diode generally comprises an InGaN compliance layer on a GaN n-type contact layer and an AlGaN/GaN n-type strained super lattice (SLS) on the compliance layer. An n-type GaN separate confinement heterostructure (SCH) is on said n-type SLS and an InGaN multiple quantum well (MQW) active region is on the n-type SCH. A GaN p-type SCH on the MQW active region, an AlGaN/GaN p-type SLS is on the p-type SCH, and a p-type GaN contact layer is on the p-type SLS. The compliance layer has an In percentage that reduces strain between the n-type contact layer and the n-type SLS compared to a laser diode without the compliance layer. Accordingly, the n-type SLS can be grown with an increased Al percentage to increase the index of refraction. This along with other features allows for reduced threshold current and voltage operation.
    • 一种激光二极管及其制造方法,其中激光二极管通常包括在GaN n型接触层上的InGaN柔性层和在柔性层上的AlGaN / GaN n型应变超晶格(SLS)。 n型GaN分离限制异质结构(SCH)在所述n型SLS上,并且InGaN多量子阱(MQW)有源区在n型SCH上。 在MQW有源区上的GaN p型SCH,AlGaN / GaN p型SLS在p型SCH上,p型GaN接触层在p型SLS上。 顺应层具有与不具有柔顺层的激光二极管相比,n型接触层和n型SLS之间的应变的In百分比。 因此,n型SLS可以以增加的Al百分数生长以增加折射率。 这与其他功能一起允许降低阈值电流和电压操作。
    • 5. 发明申请
    • BROADBAND LIGHT EMITTING DEVICE LAMPS FOR PROVIDING WHITE LIGHT OUTPUT
    • 用于提供白光输出的宽带灯发光装置灯
    • US20090206322A1
    • 2009-08-20
    • US12371226
    • 2009-02-13
    • George Brandes
    • George Brandes
    • H01L33/00
    • H01L25/0753H01L33/02H01L33/30H01L33/32H01L33/50H01L2924/0002H01L2924/00
    • A multi-chip light emitting device (LED) lamp for providing white light includes first and second broadband LED chips. The first LED chip includes a multi-quantum well active region having a first plurality of alternating active and barrier layers. The first plurality of active layers respectively include different relative concentrations of at least two elements of a first semiconductor compound, and are respectively configured to emit light of a plurality of different emission wavelengths over a first wavelength range. The second LED chip includes a multi-quantum well active region having a second plurality of alternating active and barrier layers. The second plurality of active layers respectively include different relative concentrations of at least two elements of a second semiconductor compound, and are respectively configured to emit light of a plurality of different emission wavelengths over a second wavelength range including wavelengths greater than those of the first wavelength range. The light emitted by the first and second LED chips combines to provide white light. Related devices are also discussed.
    • 用于提供白光的多芯片发光器件(LED)灯包括第一和第二宽带LED芯片。 第一LED芯片包括具有第一多个交替的有源层和阻挡层的多量子阱有源区。 第一多个有源层分别包括第一半导体化合物的至少两个元素的不同相对浓度,并且分别被配置为发射在第一波长范围上的多个不同发射波长的光。 第二LED芯片包括具有第二多个交替的有源和阻挡层的多量子阱有源区。 第二多个有源层分别包括第二半导体化合物的至少两个元件的不同相对浓度,并且分别被配置为在包括比第一波长的波长大的波长的第二波长范围内发射多个不同发射波长的光 范围。 由第一和第二LED芯片发出的光结合起来提供白光。 还讨论了相关设备。
    • 7. 发明授权
    • Laser diode and method for fabricating same
    • 激光二极管及其制造方法
    • US08679876B2
    • 2014-03-25
    • US12826305
    • 2010-06-29
    • Arpan ChakrabortyMonica HansenSteven DenbaarsShuji NakamuraGeorge Brandes
    • Arpan ChakrabortyMonica HansenSteven DenbaarsShuji NakamuraGeorge Brandes
    • H01L21/00
    • H01S5/34333B82Y20/00H01S5/2004H01S5/3406
    • A laser diode and method for fabricating same, wherein the laser diode generally comprises an InGaN compliance layer on a GaN n-type contact layer and an AlGaN/GaN n-type strained super lattice (SLS) on the compliance layer. An n-type GaN separate confinement heterostructure (SCH) is on said n-type SLS and an InGaN multiple quantum well (MQW) active region is on the n-type SCH. A GaN p-type SCH on the MQW active region, an AlGaN/GaN p-type SLS is on the p-type SCH, and a p-type GaN contact layer is on the p-type SLS. The compliance layer has an In percentage that reduces strain between the n-type contact layer and the n-type SLS compared to a laser diode without the compliance layer. Accordingly, the n-type SLS can be grown with an increased Al percentage to increase the index of refraction. This along with other features allows for reduced threshold current and voltage operation.
    • 一种激光二极管及其制造方法,其中激光二极管通常包括在GaN n型接触层上的InGaN柔性层和在柔性层上的AlGaN / GaN n型应变超晶格(SLS)。 n型GaN分离限制异质结构(SCH)在所述n型SLS上,并且InGaN多量子阱(MQW)有源区在n型SCH上。 在MQW有源区上的GaN p型SCH,AlGaN / GaN p型SLS在p型SCH上,p型GaN接触层在p型SLS上。 顺应层具有与不具有柔顺层的激光二极管相比,n型接触层和n型SLS之间的应变的In百分比。 因此,n型SLS可以以增加的Al百分数生长以增加折射率。 这与其他功能一起允许降低阈值电流和电压操作。
    • 8. 发明授权
    • Broadband light emitting device lamps for providing white light output
    • 用于提供白光输出的宽带发光装置灯
    • US08022388B2
    • 2011-09-20
    • US12371226
    • 2009-02-13
    • George Brandes
    • George Brandes
    • H01L33/00
    • H01L25/0753H01L33/02H01L33/30H01L33/32H01L33/50H01L2924/0002H01L2924/00
    • A multi-chip light emitting device (LED) lamp for providing white light includes first and second broadband LED chips. The first LED chip includes a multi-quantum well active region having a first plurality of alternating active and barrier layers. The first plurality of active layers respectively include different relative concentrations of at least two elements of a first semiconductor compound, and are respectively configured to emit light of a plurality of different emission wavelengths over a first wavelength range. The second LED chip includes a multi-quantum well active region having a second plurality of alternating active and barrier layers. The second plurality of active layers respectively include different relative concentrations of at least two elements of a second semiconductor compound, and are respectively configured to emit light of a plurality of different emission wavelengths over a second wavelength range including wavelengths greater than those of the first wavelength range. The light emitted by the first and second LED chips combines to provide white light. Related devices are also discussed.
    • 用于提供白光的多芯片发光器件(LED)灯包括第一和第二宽带LED芯片。 第一LED芯片包括具有第一多个交替的有源层和阻挡层的多量子阱有源区。 第一多个有源层分别包括第一半导体化合物的至少两个元件的不同相对浓度,并且分别被配置为发射在第一波长范围上的多个不同发射波长的光。 第二LED芯片包括具有第二多个交替的有源和阻挡层的多量子阱有源区。 第二多个有源层分别包括第二半导体化合物的至少两个元件的不同相对浓度,并且分别被配置为在包括比第一波长的波长大的波长的第二波长范围内发射多个不同发射波长的光 范围。 由第一和第二LED芯片发出的光结合起来提供白光。 还讨论了相关设备。