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公开(公告)号:US20110266569A1
公开(公告)日:2011-11-03
申请号:US12771809
申请日:2010-04-30
申请人: Grigoriy Basin , Paul S. Martin
发明人: Grigoriy Basin , Paul S. Martin
CPC分类号: H01L33/0079 , H01L24/97 , H01L33/0095 , H01L33/22 , H01L33/50 , H01L2224/14 , H01L2224/81 , H01L2924/181 , H01L2933/0041 , H01L2924/00012
摘要: An LED wafer with a growth substrate is attached to a carrier substrate by, for example, a heat-releasable adhesive so that the LED layers are sandwiched between the two substrates. The growth substrate is then removed, such as by laser lift-off. The exposed surface of the LED layers is then etched to improve light extraction. A preformed phosphor sheet, matched to the LEDs, is then affixed to the exposed LED layer. The phosphor sheet, LED layers, and, optionally, the carrier substrate are then diced to separate the LEDs. The LED dice are released from the carrier substrate by heat or other means, and the individual LED dice are mounted on a submount wafer using a pick-and-place machine. The submount wafer is then diced to produce individual LEDs. The active layer may generate blue light, and the blue light and phosphor light may generate white light having a predefined white point.
摘要翻译: 具有生长衬底的LED晶片通过例如可热剥离的粘合剂附接到载体衬底,使得LED层夹在两个衬底之间。 然后去除生长衬底,例如通过激光剥离。 然后蚀刻LED层的暴露表面以改善光提取。 然后将与LED相匹配的预成型荧光体片固定到暴露的LED层。 然后对磷光体片,LED层和任选的载体衬底进行切割以分离LED。 LED芯片通过加热或其他方式从载体基板释放,并且使用拾放机将各个LED芯片安装在底座晶片上。 然后将底座晶片切割以产生单独的LED。 有源层可以产生蓝光,并且蓝光和荧光光可以产生具有预定白点的白光。
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公开(公告)号:US20110057205A1
公开(公告)日:2011-03-10
申请号:US12945962
申请日:2010-11-15
申请人: Gerd Mueller , Regina Mueller-Mach , Grigoriy Basin , Robert Scott West , Paul S. Martin , Tze-Sen Lim , Stefan Eberle
发明人: Gerd Mueller , Regina Mueller-Mach , Grigoriy Basin , Robert Scott West , Paul S. Martin , Tze-Sen Lim , Stefan Eberle
CPC分类号: H01L33/505 , B29C41/14 , B29C41/20 , B29C41/22 , B29K2995/0031 , B29L2011/00 , H01L24/97 , H01L25/167 , H01L33/504 , H01L33/54 , H01L33/56 , H01L2224/16225 , H01L2224/45139 , H01L2224/48091 , H01L2224/73204 , H01L2224/73265 , H01L2224/97 , H01L2924/00011 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01023 , H01L2924/01033 , H01L2924/01047 , H01L2924/01055 , H01L2924/01058 , H01L2924/01079 , H01L2924/01082 , H01L2924/014 , H01L2924/12041 , H01L2924/15787 , H01L2924/181 , H01L2924/1815 , H01L2924/351 , H01L2933/0041 , H01L2924/00014 , H01L2224/81 , H01L2924/00 , H01L2924/01049 , H01L2924/00012
摘要: Overmolded lenses and certain fabrication techniques are described for LED structures. In one embodiment, thin YAG phosphor plates are formed and affixed over blue LEDs mounted on a submount wafer. A clear lens is then molded over each LED structure during a single molding process. The LEDs are then separated from the wafer. The molded lens may include red phosphor to generate a warmer white light. In another embodiment, the phosphor plates are first temporarily mounted on a backplate, and a lens containing a red phosphor is molded over the phosphor plates. The plates with overmolded lenses are removed from the backplate and affixed to the top of an energizing LED. A clear lens is then molded over each LED structure. The shape of the molded phosphor-loaded lenses may be designed to improve the color vs. angle uniformity. Multiple dies may be encapsulated by a single lens. In another embodiment, a prefabricated collimating lens is glued to the flat top of an overmolded lens.
摘要翻译: LED结构描述了包覆成型透镜和某些制造技术。 在一个实施例中,薄的YAG磷光体板被形成并固定在安装在底座晶片上的蓝色LED上。 然后在单个模制过程中在每个LED结构上模制透明透镜。 然后将LED从晶片分离。 模制的透镜可以包括红色磷光体以产生较暖的白光。 在另一个实施例中,荧光板首先临时安装在背板上,并且在荧光体板上模制含有红色荧光体的透镜。 具有二次模制的透镜的板从背板上移除并固定到通电LED的顶部。 然后在每个LED结构上模制透明透镜。 模制的含磷光体的透镜的形状可以被设计成改善颜色与角度均匀性。 多个管芯可以由单个透镜封装。 在另一个实施例中,将预制的准直透镜胶合到包覆成型透镜的平坦顶部。
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公开(公告)号:US07867793B2
公开(公告)日:2011-01-11
申请号:US11775059
申请日:2007-07-09
申请人: Grigoriy Basin , Robert S. West , Paul S. Martin
发明人: Grigoriy Basin , Robert S. West , Paul S. Martin
IPC分类号: H01L21/00
CPC分类号: H01L33/0079 , H01L24/97 , H01L33/54 , H01L33/56 , H01L2224/05568 , H01L2224/05573 , H01L2224/13 , H01L2224/16225 , H01L2224/73204 , H01L2224/81001 , H01L2224/92125 , H01L2924/00014 , H01L2924/12041 , H01L2924/00 , H01L2224/05599
摘要: A light emitting diode (LED) is fabricated using an underfill layer that is deposited on either the LED or the submount prior to mounting the LED to a submount. The deposition of the underfill layer prior to mounting the LED to the submount provides for a more uniform and void free support, and increases underfill material options to permit improved thermal characteristics. The underfill layer may be used as support for the thin and brittle LED layers during the removal of the growth substrate prior to mounting the LED to the submount. Additionally, the underfill layer may be patterned to and/or polished back so that only the contact areas of the LED and/or submount are exposed. The patterns in the underfill may also be used as a guide to assist in the singulating of the devices.
摘要翻译: 在将LED安装到底座之前,使用底层填充层制造发光二极管(LED),其沉积在LED或者底座上。 在将LED安装到底座之前,底部填充层的沉积提供了更均匀和无空隙的支撑,并且增加了底部填充材料选项以允许改进的热特性。 在将LED安装到底座之前,底层填充层可以用作移除生长衬底期间的薄且脆性LED层的支撑。 此外,底部填充层可以被图案化和/或抛光,使得只有LED和/或副安装座的接触区域被暴露。 底部填充物中的图案也可以用作辅助单元的设备的指导。
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公开(公告)号:US07858408B2
公开(公告)日:2010-12-28
申请号:US11679143
申请日:2007-02-26
申请人: Gerd O. Mueller , Regina Mueller-Mach , Grigoriy Basin , Robert Scott West , Paul S. Martin , Tze-Sen Lim , Stefan Eberle
发明人: Gerd O. Mueller , Regina Mueller-Mach , Grigoriy Basin , Robert Scott West , Paul S. Martin , Tze-Sen Lim , Stefan Eberle
CPC分类号: H01L33/505 , B29C41/14 , B29C41/20 , B29C41/22 , B29K2995/0031 , B29L2011/00 , H01L24/97 , H01L25/167 , H01L33/504 , H01L33/54 , H01L33/56 , H01L2224/16225 , H01L2224/45139 , H01L2224/48091 , H01L2224/73204 , H01L2224/73265 , H01L2224/97 , H01L2924/00011 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01023 , H01L2924/01033 , H01L2924/01047 , H01L2924/01055 , H01L2924/01058 , H01L2924/01079 , H01L2924/01082 , H01L2924/014 , H01L2924/12041 , H01L2924/15787 , H01L2924/181 , H01L2924/1815 , H01L2924/351 , H01L2933/0041 , H01L2924/00014 , H01L2224/81 , H01L2924/00 , H01L2924/01049 , H01L2924/00012
摘要: Overmolded lenses and certain fabrication techniques are described for LED structures. In one embodiment, thin YAG phosphor plates are formed and affixed over blue LEDs mounted on a submount wafer. A clear lens is then molded over each LED structure during a single molding process. The LEDs are then separated from the wafer. The molded lens may include red phosphor to generate a warmer white light. In another embodiment, the phosphor plates are first temporarily mounted on a backplate, and a lens containing a red phosphor is molded over the phosphor plates. The plates with overmolded lenses are removed from the backplate and affixed to the top of an energizing LED. A clear lens is then molded over each LED structure. The shape of the molded phosphor-loaded lenses may be designed to improve the color vs. angle uniformity. Multiple dies may be encapsulated by a single lens. In another embodiment, a prefabricated collimating lens is glued to the flat top of an overmolded lens.
摘要翻译: LED结构描述了包覆成型透镜和某些制造技术。 在一个实施例中,薄的YAG磷光体板被形成并固定在安装在底座晶片上的蓝色LED上。 然后在单个模制过程中在每个LED结构上模制透明透镜。 然后将LED从晶片分离。 模制的透镜可以包括红色磷光体以产生较暖的白光。 在另一个实施例中,荧光板首先临时安装在背板上,并且在荧光体板上模制含有红色荧光体的透镜。 具有二次模制的透镜的板从背板上移除并固定到通电LED的顶部。 然后在每个LED结构上模制透明透镜。 模制的含磷光体的透镜的形状可以被设计成改善颜色与角度均匀性。 多个管芯可以由单个透镜封装。 在另一个实施例中,将预制的准直透镜胶合到包覆成型透镜的平坦顶部。
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公开(公告)号:US20090230409A1
公开(公告)日:2009-09-17
申请号:US12050082
申请日:2008-03-17
申请人: Grigoriy Basin , Frederic Diana , Paul S. Martin , Dima Simonian
发明人: Grigoriy Basin , Frederic Diana , Paul S. Martin , Dima Simonian
IPC分类号: H01L33/00
CPC分类号: H01L33/54 , H01L24/97 , H01L33/0079 , H01L33/56 , H01L2224/16225 , H01L2224/32225 , H01L2224/73204 , H01L2924/00
摘要: An underfill technique for LEDs uses compression molding to simultaneously encapsulate an array of flip-chip LED dies mounted on a submount wafer. The molding process causes liquid underfill material (or a softened underfill material) to fill the gap between the LED dies and the submount wafer. The underfill material is then hardened, such as by curing. The cured underfill material over the top and sides of the LED dies is removed using microbead blasting. The exposed growth substrate is then removed from all the LED dies by laser lift-off, and the underfill supports the brittle epitaxial layers of each LED die during the lift-off process. The submount wafer is then singulated. This wafer-level processing of many LEDs simultaneously greatly reduces fabrication time, and a wide variety of materials may be used for the underfill since a wide range of viscosities is tolerable.
摘要翻译: 用于LED的底部填充技术使用压缩成型来同时封装安装在底座晶片上的倒装芯片LED管芯阵列。 成型工艺使液体底部填充材料(或软化的底部填充材料)填充LED管芯和底座晶片之间的间隙。 然后将底部填充材料硬化,例如通过固化。 使用微珠喷砂除去在LED管芯的顶部和侧面上固化的底部填充材料。 然后通过激光剥离从所有LED管芯去除暴露的生长衬底,并且底部填充物在剥离过程中支持每个LED管芯的脆性外延层。 然后将底座晶片分离。 许多LED的晶片级处理同时大大减少了制造时间,并且可以使用各种各样的材料用于底部填充,因为宽范围的粘度是可以容忍的。
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公开(公告)号:US20090017566A1
公开(公告)日:2009-01-15
申请号:US11775059
申请日:2007-07-09
申请人: Grigoriy Basin , Robert S. West , Paul S. Martin
发明人: Grigoriy Basin , Robert S. West , Paul S. Martin
IPC分类号: H01L33/00
CPC分类号: H01L33/0079 , H01L24/97 , H01L33/54 , H01L33/56 , H01L2224/05568 , H01L2224/05573 , H01L2224/13 , H01L2224/16225 , H01L2224/73204 , H01L2224/81001 , H01L2224/92125 , H01L2924/00014 , H01L2924/12041 , H01L2924/00 , H01L2224/05599
摘要: A light emitting diode (LED) is fabricated using an underfill layer that is deposited on either the LED or the submount prior to mounting the LED to a submount. The deposition of the underfill layer prior to mounting the LED to the submount provides for a more uniform and void free support, and increases underfill material options to permit improved thermal characteristics. The underfill layer may be used as support for the thin and brittle LED layers during the removal of the growth substrate prior to mounting the LED to the submount. Additionally, the underfill layer may be patterned to and/or polished back so that only the contact areas of the LED and/or submount are exposed. The patterns in the underfill may also be used as a guide to assist in the singulating of the devices.
摘要翻译: 在将LED安装到底座之前,使用底层填充层制造发光二极管(LED),其沉积在LED或者底座上。 在将LED安装到底座之前,底部填充层的沉积提供了更均匀和无空隙的支撑,并且增加了底部填充材料选项以允许改进的热特性。 在将LED安装到底座之前,底层填充层可以用作移除生长衬底期间的薄且脆性LED层的支撑。 此外,底部填充层可以被图案化和/或抛光,使得只有LED和/或副安装座的接触区域被暴露。 底部填充物中的图案也可以用作辅助单元的设备的指导。
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公开(公告)号:US07452737B2
公开(公告)日:2008-11-18
申请号:US10990208
申请日:2004-11-15
IPC分类号: H01L21/00
CPC分类号: H01L33/52 , B29C33/0022 , B29C39/006 , B29C39/025 , B29C43/021 , B29C43/18 , B29L2011/0016 , G02B19/0028 , G02B19/0061 , G02B19/0071 , H01L33/507 , H01L2224/48091 , H01L2224/73265 , H01L2924/01013 , H01L2924/01049 , H01L2924/12041 , H01L2924/00014
摘要: One or more LED dice are mounted on a support structure. The support structure may be a submount with the LED dice already electrically connected to leads on the submount. A mold has indentations in it corresponding to the positions of the LED dice on the support structure. The indentations are filled with a liquid optically transparent material, such as silicone, which when cured forms a lens material. The shape of the indentations will be the shape of the lens. The mold and the LED dice/support structure are brought together so that each LED die resides within the liquid silicone in an associated indentation. The mold is then heated to cure (harden) the silicone. The mold and the support structure are then separated, leaving a complete silicone lens over each LED die. This over molding process may be repeated with different molds to create concentric shells of lenses. Each concentric lens may have a different property, such as containing a phosphor.
摘要翻译: 一个或多个LED骰子安装在支撑结构上。 支撑结构可以是具有LED芯片的基座,其已经电连接到底座上的引线。 模具中的凹槽对应于支撑结构上的LED骰子的位置。 凹痕中填充有液体光学透明材料,例如硅树脂,其在固化时形成透镜材料。 压痕的形状将是镜片的形状。 模具和LED骰子/支撑结构被聚集在一起,使得每个LED管芯位于相关压痕内的液体硅胶内。 然后将模具加热以固化(硬化)硅树脂。 然后将模具和支撑结构分离,在每个LED管芯上留下完整的硅胶透镜。 可以用不同的模具重复该过模制过程以产生透镜的同心壳。 每个同心透镜可以具有不同的性质,例如含有荧光体。
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公开(公告)号:US07352011B2
公开(公告)日:2008-04-01
申请号:US11093961
申请日:2005-03-29
申请人: Willem H. Smits , Robert F. M. Hendriks , Grigoriy Basin , Frans H. Konijn , Robert Scott West , Paul S. Martin , Gerard Harbers
发明人: Willem H. Smits , Robert F. M. Hendriks , Grigoriy Basin , Frans H. Konijn , Robert Scott West , Paul S. Martin , Gerard Harbers
IPC分类号: H01L29/22
CPC分类号: H01L33/58 , G02B19/0028 , G02B19/0066 , G02B19/0071 , H01L33/46 , H01L33/504 , H01L33/507 , H01L33/54 , H01L33/60 , H01L2224/13 , H01L2224/48091 , H01L2224/73265 , H01L2924/00014
摘要: Lenses and certain fabrication techniques are described. A wide-emitting lens refracts light emitted by an LED die to cause a peak intensity to occur within 50-80 degrees off the center axis and an intensity along the center axis to be between 5% and 33% of the peak intensity. The lens is particularly useful in a LCD backlighting application. In one embodiment, the lens is affixed to the backplane on which the LED die is mounted and surrounds the LED die. The lens has a hollow portion that forms an air gap between the LED die and the lens, where the light is bent towards the sides both at the air gap interface and the outer lens surface interface. The lens may be a secondary lens surrounding an interior lens molded directly over the LED die.
摘要翻译: 描述镜片和某些制造技术。 宽发射透镜折射由LED管芯发射的光,使峰强度发生在离中心轴50-80度以内,沿着中心轴的强度在峰值强度的5%至33%之间。 镜头在LCD背光应用中特别有用。 在一个实施例中,透镜固定到其上安装有LED管芯的背板上,并且围绕LED管芯。 透镜具有中空部分,其在LED管芯和透镜之间形成气隙,其中光在气隙界面和外透镜表面界面处朝向侧面弯曲。 透镜可以是围绕直接模制在LED芯片上的内部透镜的次级透镜。
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公开(公告)号:US3958682A
公开(公告)日:1976-05-25
申请号:US585107
申请日:1975-06-09
申请人: Paul S. Martin
发明人: Paul S. Martin
IPC分类号: B25J9/00 , G05B19/418 , B23Q7/03
CPC分类号: B25J9/0093 , G05B19/4182 , G05B2219/45213 , Y02P90/083 , Y10T408/365 , Y10T83/4682
摘要: An endless chain is caused to become locked to and driven by a work-carrier forming part of a conveyor. The chain drives a signal generator whose output represents the advance of the work-carrier past a robot and the generated signal is combined with program control signals of the robot to modify the operation of the robot so that the robot can operate on a moving work-piece whereas the robot's program alone would cause robot operations on a work-piece that remains at-rest.
摘要翻译: 导致环形链条被形成传送带部分的工作载体锁定并驱动。 该链驱动信号发生器,其输出表示通过机器人的工作载体的前进,并且生成的信号与机器人的程序控制信号组合以修改机器人的操作,使得机器人可以在移动的工作 - 而机器人的程序本身将导致机器人操作在保持休息的工件上。
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