公开(公告)号：US06791119B2

公开(公告)日：2004-09-14

申请号：US10057821

申请日：2002-01-25

申请人： David B. Slater, Jr. ,  Robert C. Glass ,  Charles M. Swoboda ,  Bernd Keller ,  James Ibbetson ,  Brian Thibeault ,  Eric J. Tarsa

发明人： David B. Slater, Jr. ,  Robert C. Glass ,  Charles M. Swoboda ,  Bernd Keller ,  James Ibbetson ,  Brian Thibeault ,  Eric J. Tarsa

IPC分类号： H01L3300

CPC分类号： H01L33/20 ,  H01L33/10 ,  H01L33/405 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/32014 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2924/01079 ,  H01L2924/01322 ,  H01L2924/10253 ,  H01L2924/12032 ,  H01L2924/12041 ,  H01L2924/00014 ,  H01L2924/00

摘要： Light emitting diodes include a substrate having first and second opposing faces and that is transparent to optical radiation in a predetermined wavelength range and that is patterned to define, in cross-section, a plurality of pedestals that extend into the substrate from the first face towards the second face. A diode region on the second face is configured to emit light in the predetermined wavelength range, into the substrate upon application of voltage across the diode region. A mounting support on the diode region, opposite the substrate is configured to support the diode region, such that the light that is emitted from the diode region into the substrate, is emitted from the first face upon application of voltage across the diode region. The first face of the substrate may include therein a plurality of grooves that define the plurality of triangular pedestals in the substrate. The grooves may include tapered sidewalls and/or a beveled floor. The first face of the substrate also may include therein an array of via holes. The via holes may include tapered sidewalls and/or a floor.

摘要翻译： 发光二极管包括具有第一和第二相对面并且对于预定波长范围内的光辐射透明的衬底，其被图案化以在横截面中限定多个基座，其从第一面朝向 第二张脸。 第二面上的二极管区域被配置为在施加二极管区域上的电压时将预定波长范围内的光发射到衬底中。 配置在与衬底相对的二极管区域上的安装支撑件被配置为支撑二极管区域，使得从二极管区域发射到衬底中的光在施加二极管区域上的电压时从第一面发射。 衬底的第一面可以包括在衬底中限定多个三角形基座的多个凹槽。 凹槽可以包括锥形侧壁和/或斜面底板。 衬底的第一面也可以包括一组通孔。 通孔可以包括锥形侧壁和/或底板。

公开(公告)号：US06885036B2

公开(公告)日：2005-04-26

申请号：US10606431

申请日：2003-06-25

申请人： Eric J. Tarsa ,  Brian Thibeault ,  James Ibbetson ,  Michael Mack

发明人： Eric J. Tarsa ,  Brian Thibeault ,  James Ibbetson ,  Michael Mack

IPC分类号： H01L33/14 ,  H01L33/20 ,  H01L33/38 ,  H01L33/64 ,  H01L29/22

CPC分类号： H01L33/38 ,  H01L33/14 ,  H01L33/20 ,  H01L33/64

摘要： An LED with improved current spreading structures that provide enhanced current injection into the LED's active layer, improving its power and luminous flux. The current spreading structures can be used in LEDs larger than conventional LEDs while maintaining the enhanced current injection. The invention is particularly applicable to LEDs having insulating substrates but can also reduce the series resistance of LEDs having conductive substrates. The improved structures comprise conductive fingers that form cooperating conductive paths that ensure that current spreads from the p-type and n-type contacts into the fingers and uniformly spreads though the oppositely doped layers. The current then spreads to the active layer to uniformly inject electrons and holes throughout the active layer, which recombine to emit light.

摘要翻译： 一种具有改进的电流扩展结构的LED，可以增强电流注入到LED的有源层，从而提高其功率和光通量。 当前的扩展结构可以用于比常规LED更大的LED，同时保持增强的电流注入。 本发明特别适用于具有绝缘基板的LED，但也可以降低具有导电基板的LED的串联电阻。 改进的结构包括形成协调的导电路径的导电指状物，其确保电流从p型和n型触点扩散到指状物中并且通过相对掺杂的层均匀地扩散。 电流然后扩散到有源层，以在整个有源层中均匀地注入电子和空穴，其重新发光。

公开(公告)号：US06614056B1

公开(公告)日：2003-09-02

申请号：US09721352

申请日：2000-11-21

申请人： Eric J. Tarsa ,  Brian Thibeault ,  James Ibbetson ,  Michael Mack

发明人： Eric J. Tarsa ,  Brian Thibeault ,  James Ibbetson ,  Michael Mack

IPC分类号： H01L29205

CPC分类号： H01L33/38 ,  H01L33/14 ,  H01L33/20 ,  H01L33/64

摘要： An LED with improved current spreading structures that provide enhanced current injection into the LED's active layer, improving its power and luminous flux. The current spreading structures can be used in LEDs larger than conventional LEDs while maintaining the enhanced current injection. The invention is particularly applicable to LEDs having insulating substrates but can also reduce the series resistance of LEDs having conductive substrates. The improved structures comprise conductive fingers that form cooperating conductive paths that ensure that current spreads from the p-type and n-type contacts into the fingers and uniformly spreads though the oppositely doped layers. The current then spreads to the active layer to uniformly inject electrons and holes throughout the active layer, which recombine to emit light.

摘要翻译： 一种具有改进的电流扩展结构的LED，可以增强电流注入到LED的有源层，从而提高其功率和光通量。 当前的扩展结构可以用于比常规LED更大的LED，同时保持增强的电流注入。 本发明特别适用于具有绝缘基板的LED，但也可以降低具有导电基板的LED的串联电阻。 改进的结构包括形成协调的导电路径的导电指状物，其确保电流从p型和n型触点扩散到指状物中并且通过相对掺杂的层均匀地扩散。 电流然后扩散到有源层，以在整个有源层中均匀地注入电子和空穴，其重新发光。

公开(公告)号：US20070120129A1

公开(公告)日：2007-05-31

申请号：US11353647

申请日：2006-02-13

申请人： Steven DenBaars ,  Eric Tarsa ,  Michael Mack ,  Bernd Keller ,  Brian Thibeault ,  Adam Saxler

发明人： Steven DenBaars ,  Eric Tarsa ,  Michael Mack ,  Bernd Keller ,  Brian Thibeault ,  Adam Saxler

IPC分类号： H01L33/00

CPC分类号： H01L33/08 ,  H01L25/0756 ,  H01L27/15 ,  H01L33/025 ,  H01L33/30 ,  H01L33/343 ,  H01L33/465 ,  H01L33/502 ,  H01L2224/8592 ,  H01L2924/0002 ,  H01S5/405 ,  H01S5/4087 ,  H01L2924/00

摘要： A solid state light emitting device comprising an emitter structure having an active region of semiconductor material and a pair of oppositely doped layers of semiconductor material on opposite sides of the active region. The active region emits light at a predetermined wavelength in response to an electrical bias across the doped layers. An absorption layer of semiconductor material is included that is integral to said emitter structure and doped with at least one rare earth or transition element. The absorption layer absorbs at least some of the light emitted from the active region and re-emits at least one different wavelength of light. A substrate is included with the emitter structure and absorption layer disposed on the substrate.

摘要翻译： 一种固态发光器件，包括具有半导体材料的有源区的发射极结构和在该有源区的相对侧上的一对相对掺杂的半导体材料层。 响应于穿过掺杂层的电偏压，有源区域以预定波长发光。 包括与所述发射极结构成一体并掺杂有至少一种稀土或过渡元素的半导体材料的吸收层。 吸收层吸收从有源区域发射的至少一些光并且再发射至少一个不同波长的光。 发射体结构和衬底上设置的吸收层包括衬底。

公开(公告)号：US20060255347A1

公开(公告)日：2006-11-16

申请号：US11484233

申请日：2006-07-10

申请人： Steven DenBaars ,  Eric Tarsa ,  Michael Mack ,  Bernd Keller ,  Brian Thibeault

发明人： Steven DenBaars ,  Eric Tarsa ,  Michael Mack ,  Bernd Keller ,  Brian Thibeault

IPC分类号： H01L33/00 ,  H01L21/00

CPC分类号： H01L33/30 ,  H01L25/0756 ,  H01L27/15 ,  H01L27/153 ,  H01L33/08 ,  H01L33/343 ,  H01L33/502 ,  H01L33/504 ,  H01L2924/0002 ,  H01S3/0627 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1623 ,  H01S3/1628 ,  H01S5/0206 ,  H01S5/0287 ,  H01S5/1032 ,  H01S5/183 ,  H01S5/18361 ,  H01S5/32341 ,  H01L2924/00

摘要： A light emitting diode (LED) grown on a substrate doped with one or more rare earth or transition element. The dopant ions absorb some or all of the light from the LED's active layer, pumping the electrons on the dopant ion to a higher energy state. The electrons are naturally drawn to their equilibrium state and they emit light at a wavelength that depends on the type of dopant ion. The invention is particularly applicable to nitride based LEDs emitting UV light and grown on a sapphire substrate doped with chromium. The chromium ions absorb the UV light, exciting the electrons on ions to a higher energy state. When they return to their equilibrium state they emit red light and some of the red light will emit from the LED's surface. The LED can also have active layers that emit green and blue and UV light, such that the LED emits green, blue, red light and UV light which combines to create white light. Alternatively, it can have one active layer and grown on a sapphire substrate doped with Cr, Ti, and Co such that the substrate absorbs the UV light and emits blue, green, and red light. The invention is also capable of providing a tunable LED over a variety of color shades. The invention is also applicable to solid state laser having one or more active layers emitting UV light with the laser grown on a sapphire substrate doped with one or more rare earth or transition elements.

公开(公告)号：US06350041B1

公开(公告)日：2002-02-26

申请号：US09537531

申请日：2000-03-29

申请人： Eric J. Tarsa ,  Brian Thibeault

发明人： Eric J. Tarsa ,  Brian Thibeault

IPC分类号： F21V900

CPC分类号： F21V29/74 ,  F21K9/232 ,  F21K9/61 ,  F21K9/64 ,  F21K9/68 ,  F21V7/0091 ,  F21V9/00 ,  F21V29/75 ,  F21V29/767 ,  F21Y2113/13 ,  F21Y2115/10 ,  F21Y2115/30 ,  G02B6/0008 ,  H01L33/505 ,  H01L33/58 ,  H01L33/60

摘要： The invention provides a new solid state lamp emitting a light useful for room illumination and other applications. It comprises a solid state Light Source which transmits light through a Separator to a Disperser that disperses the light in a desired pattern and/or changes its color. In one embodiment, the Light Source is a blue emitting LED operating with current high enough for room illumination, the Separator is a light pipe or fiber optic device, and the Disperser disperses the light radially and converts some of the blue light to yellow to produce a white light mixture. The Separator spaces the Light Source a sufficient distance from the Disperser such that heat from the Light Source will not transfer to the Disperser when the Light Source is carrying elevated currents necessary for room illumination.

摘要翻译： 本发明提供了一种新的固态灯，其发射用于室内照明和其它应用的光。 它包括固态光源，其将光通过分离器透射到分散器，其将光以期望的图案分散和/或改变其颜色。 在一个实施例中，光源是蓝色发光LED，其工作电流足够高以用于室内照明，分离器是光管或光纤装置，并且分散器径向分散光，并将一些蓝色光转换成黄色以产生 一个白光混合物。 分离器将光源与分散器隔开足够的距离，使得当光源携带室内照明所需的升高的电流时，来自光源的热量不会转移到分散器。

公开(公告)号：US20060131599A1

公开(公告)日：2006-06-22

申请号：US11338918

申请日：2006-01-25

申请人： David Slater ,  Robert Glass ,  Charles Swoboda ,  Bernd Keller ,  James Ibbetson ,  Brian Thibeault ,  Eric Tarsa

发明人： David Slater ,  Robert Glass ,  Charles Swoboda ,  Bernd Keller ,  James Ibbetson ,  Brian Thibeault ,  Eric Tarsa

IPC分类号： H01L33/00

CPC分类号： H01L33/20 ,  H01L33/10 ,  H01L33/405 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/32014 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2924/01079 ,  H01L2924/01322 ,  H01L2924/10253 ,  H01L2924/12032 ,  H01L2924/12041 ,  H01L2924/00014 ,  H01L2924/00

摘要： Light emitting diodes include a substrate having first and second opposing faces and that is transparent to optical radiation in a predetermined wavelength range and that is patterned to define, in cross-section, a plurality of pedestals that extend into the substrate from the first face towards the second face. A diode region on the second face is configured to emit light in the predetermined wavelength range, into the substrate upon application of voltage across the diode region. A mounting support on the diode region, opposite the substrate is configured to support the diode region, such that the light that is emitted from the diode region into the substrate, is emitted from the first face upon application of voltage across the diode region. The first face of the substrate may include therein a plurality of grooves that define the plurality of triangular pedestals in the substrate. The grooves may include tapered sidewalls and/or a beveled floor. The first face of the substrate also may include therein an array of via holes. The via holes may include tapered sidewalls and/or a floor.

摘要翻译： 发光二极管包括具有第一和第二相对面并且对于预定波长范围内的光辐射透明的衬底，其被图案化以在横截面中限定多个基座，其从第一面朝向 第二张脸。 第二面上的二极管区域被配置为在施加二极管区域上的电压时将预定波长范围内的光发射到衬底中。 配置在与衬底相对的二极管区域上的安装支撑件被配置为支撑二极管区域，使得从二极管区域发射到衬底中的光在施加二极管区域上的电压时从第一面发射。 衬底的第一面可以包括在衬底中限定多个三角形基座的多个凹槽。 凹槽可以包括锥形侧壁和/或斜面底板。 衬底的第一面也可以包括一组通孔。 通孔可以包括锥形侧壁和/或底板。

公开(公告)号：US20070284604A1

公开(公告)日：2007-12-13

申请号：US11842350

申请日：2007-08-21

申请人： David Slater ,  Robert Glass ,  Charles Swoboda ,  Bernd Keller ,  James Ibbetson ,  Brian Thibeault ,  Eric Tarsa

发明人： David Slater ,  Robert Glass ,  Charles Swoboda ,  Bernd Keller ,  James Ibbetson ,  Brian Thibeault ,  Eric Tarsa

IPC分类号： H01L33/00

CPC分类号： H01L33/20 ,  H01L33/10 ,  H01L33/405 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/32014 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2924/01079 ,  H01L2924/01322 ,  H01L2924/10253 ,  H01L2924/12032 ,  H01L2924/12041 ,  H01L2924/00014 ,  H01L2924/00

摘要： Light emitting diodes include a substrate having first and second opposing faces and that is transparent to optical radiation in a predetermined wavelength range and that is patterned to define, in cross-section, a plurality of pedestals that extend into the substrate from the first face towards the second face. A diode region on the second face is configured to emit light in the predetermined wavelength range, into the substrate upon application of voltage across the diode region. A mounting support on the diode region, opposite the substrate is configured to support the diode region, such that the light that is emitted from the diode region into the substrate, is emitted from the first face upon application of voltage across the diode region. A reflector is provided between the mounting support and the diode region, that is configured to reflect light that is emitted from the diode region back into the diode region, through the substrate that is transparent to optical radiation in the predetermined wavelength range and from the plurality of pedestals, upon application of voltage across the diode region. A layer of Indium Tin Oxide (ITO) is provided between the reflector and the diode region.

摘要翻译： 发光二极管包括具有第一和第二相对面并且对于预定波长范围内的光辐射透明的衬底，其被图案化以在横截面中限定多个基座，其从第一面朝向 第二张脸。 第二面上的二极管区域被配置为在施加二极管区域上的电压时将预定波长范围内的光发射到衬底中。 配置在与衬底相对的二极管区域上的安装支撑件被配置为支撑二极管区域，使得从二极管区域发射到衬底中的光在施加二极管区域上的电压时从第一面发射。 在安装支撑件和二极管区域之间提供反射器，其被配置为将从二极管区域发射的光反射回二极管区域，穿过对于预定波长范围内的光辐射透明的基板和从多个 在二极管区域施加电压时， 在反射器和二极管区域之间设置一层氧化铟锡（ITO）。

公开(公告)号：US06657236B1

公开(公告)日：2003-12-02

申请号：US09727803

申请日：2000-11-28

申请人： Brian Thibeault ,  Michael Mack ,  Steven DenBaars

发明人： Brian Thibeault ,  Michael Mack ,  Steven DenBaars

IPC分类号： H01L3300

CPC分类号： H01L33/20 ,  H01L33/22 ,  H01L33/44 ,  H01L2933/0091 ,  Y10S977/712 ,  Y10S977/834

摘要： This invention describes new LEDs having light extraction structures on or within the LED to increase its efficiency. The new light extraction structures provide surfaces for reflecting, refracting or scattering light into directions that are more favorable for the light to escape into the package. The structures can be arrays of light extraction elements or disperser layers. The light extraction elements can have many different shapes and are placed in many locations to increase the efficiency of the LED over conventional LEDs. The disperser layers provide scattering centers for light and can be placed in many locations as well. The new LEDs with arrays of light extraction elements are fabricated with standard processing techniques making them highly manufacturable at costs similar to standard LEDs. The new LEDs with disperser layers are manufactured using new methods and are also highly manufacturable.

摘要翻译： 本发明描述了在LED上或LED内部具有光提取结构以提高其效率的新型LED。 新的光提取结构提供用于将光反射，折射或散射到更有利于光逃逸到包装中的方向的表面。 该结构可以是光提取元件或分散层的阵列。 光提取元件可以具有许多不同的形状并且被放置在许多位置以提高LED相对于常规LED的效率。 分散层提供光的散射中心，并且也可以放置在许多位置。 具有光提取元件阵列的新型LED采用标准处理技术制造，使得它们以与标准LED相似的成本高度可制造。 具有分散层的新型LED使用新的方法制造，并且也是高度可制造的。

公开(公告)号：US06821804B2

公开(公告)日：2004-11-23

申请号：US10665595

申请日：2003-09-17

申请人： Brian Thibeault ,  Michael Mack ,  Steven DenBaars

发明人： Brian Thibeault ,  Michael Mack ,  Steven DenBaars

IPC分类号： H01L3300

CPC分类号： H01L33/20 ,  H01L33/22 ,  H01L33/44 ,  H01L2933/0091 ,  Y10S977/712 ,  Y10S977/834

摘要： This invention describes new LEDs having light extraction structures on or within the LED to increase its efficiency. The new light extraction structures provide surfaces for reflecting, refracting or scattering light into directions that are more favorable for the light to escape into the package. The structures can be arrays of light extraction elements or disperser layers. The light extraction elements can have many different shapes and are placed in many locations to increase the efficiency of the LED over conventional LEDs. The disperser layers provide scattering centers for light and can be placed in many locations as well. The new LEDs with arrays of light extraction elements are fabricated with standard processing techniques making them highly manufacturable at costs similar to standard LEDs. The new LEDs with disperser layers are manufactured using new methods and are also highly manufacturable.

摘要翻译： 本发明描述了在LED上或LED内部具有光提取结构以提高其效率的新型LED。 新的光提取结构提供用于将光反射，折射或散射到更有利于光逃逸到包装中的方向的表面。 该结构可以是光提取元件或分散层的阵列。 光提取元件可以具有许多不同的形状并且被放置在许多位置以提高LED相对于常规LED的效率。 分散层提供光的散射中心，并且也可以放置在许多位置。 具有光提取元件阵列的新型LED采用标准处理技术制造，使得它们以与标准LED相似的成本高度可制造。 具有分散层的新型LED使用新的方法制造，并且也是高度可制造的。