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公开(公告)号:US20210125847A1
公开(公告)日:2021-04-29
申请号:US17139976
申请日:2020-12-31
Inventor: Chen-ke HSU , Jiansen ZHENG , Xiaojuan SHAO , Kechuang LIN
IPC: H01L21/67 , B65G61/00 , H01L21/683
Abstract: A method of making a transfer head for transferring micro elements, wherein the transfer head includes a cavity with a plurality of vacuum paths and a suite having arrayed suction nozzles and vacuum paths. The suction nozzles are connected to the vacuum path components respectively, and the vacuum path components are formed to connect to vacuum paths in the cavity respectively. The suction nozzles attract or release the micro element through vacuum pressure transmitted by vacuum. When the suite is mounted in the cavity, the upper surface of the suite is arranged with optical switching components for controlling the switch of the vacuum path components and vacuum paths of each path so that the suction nozzles can attract or release required micro element through vacuum pressure; and fabricating a suite with an array micro-hole structure, wherein the array micro-hole structure serves as the vacuum path components and the suction nozzles.
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公开(公告)号:US20210126176A1
公开(公告)日:2021-04-29
申请号:US17138893
申请日:2020-12-30
Inventor: Anhe HE , Suhui LIN , Jiansen ZHENG , Kangwei PENG , Xiaoxiong LIN , Chenke HSU
Abstract: A light emitting diode includes: a light emitting structure including a first semiconductor layer, a light emitting layer arranged on at least part of the first semiconductor layer, a second semiconductor layer arranged on the light emitting layer; a first metal layer arranged on at least part of the first semiconductor layer and in contact with the first semiconductor layer; an insulating layer covered a surface of the light emitting structure; and an electrode layer arranged on the insulating layer and having at least one region that is not overlapped with the first metal layer or the second metal layer in a vertical direction.
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公开(公告)号:US20190267528A1
公开(公告)日:2019-08-29
申请号:US16409090
申请日:2019-05-10
Inventor: Anhe HE , Suhui LIN , Jiansen ZHENG , Kangwei PENG , Xiaoxiong LIN , Chenke HSU
Abstract: A flip-chip LED chip includes: a substrate; a first semiconductor layer; a light emitting layer; a second semiconductor layer; a local defect region over part of the second semiconductor layer and extending downward to the first semiconductor layer; first and second metal layers respectively over portions of the first and second semiconductor layers; an insulating layer covering the first and second metal layers, the second and first semiconductor layers in the local defect region. The insulating layer has opening structures over the first and second metal layers respectively; a eutectic electrode structure over the insulating layer with openings and including first and second eutectic layers from bottom up at a vertical direction, and including first-type and second-type electrode regions at a horizontal direction. The second eutectic layer does not overlap with the first and second metal layers at the vertical direction.
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公开(公告)号:US20180122664A1
公开(公告)日:2018-05-03
申请号:US15859659
申请日:2017-12-31
Inventor: Chen-ke HSU , Jiansen ZHENG , Xiaojuan SHAO , Kechuang LIN
IPC: H01L21/67 , B65G61/00 , H01L21/683
CPC classification number: H01L21/67144 , B65G61/00 , H01L21/6838
Abstract: A transfer head for transferring micro elements includes a cavity with a plurality of vacuum paths; a suite having a plurality of suction nozzles and vacuum path components. The suction nozzles are connected to the vacuum path components respectively, and the vacuum path components are formed to connect to vacuum paths in the cavity respectively. The suction nozzles absorb or release the micro elements through vacuum pressure, which is transmitted by vacuum path components and vacuum paths of each path. When the suite is mounted in the cavity, the upper surface of the suite is arranged with optical switching components for controlling the switch of the vacuum path components and vacuum paths of each path so that the suction nozzles can absorb or release required micro element through vacuum pressure.
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公开(公告)号:US20180108810A1
公开(公告)日:2018-04-19
申请号:US15846146
申请日:2017-12-18
Inventor: Anhe HE , Su-hui LIN , Jiansen ZHENG , Kang-wei PENG , Xiaoxiong LIN , Chen-ke HSU
CPC classification number: H01L33/38 , H01L33/005 , H01L33/12 , H01L33/46 , H01L33/60 , H01L2933/0016 , H01L2933/0058
Abstract: A flip-chip light-emitting diode structure includes a substrate; an epitaxial layer over the substrate, which includes a first semiconductor layer, a light-emitting layer, and a second semiconductor layer; a first electrode structure over the first semiconductor layer; a second electrode structure over the second semiconductor layer; wherein, the first electrode structure includes a first electrode body and a first electrode ring; the second electrode structure includes a second electrode body and a second electrode ring; the thickness of the first electrode ring is greater than or equal to that of the first electrode body and the thickness of the second electrode ring is greater than or equal to that of the second electrode body. As barrier structures, the first and the second electrode rings are used for avoiding short circuit during packaging and usage of the light-emitting diode due to overflow of solid crystal conductive materials, thus improving reliability.
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公开(公告)号:US20170110638A1
公开(公告)日:2017-04-20
申请号:US15390951
申请日:2016-12-27
Inventor: Hou-jun WU , Jiansen ZHENG , Chen-ke HSU , Anhe HE , Chia-en LEE
CPC classification number: H01L33/62 , H01L27/15 , H01L27/153 , H01L27/156 , H01L33/22 , H01L33/42 , H01L2933/0016 , H01L2933/0066
Abstract: A high-voltage light emitting diode and fabrication method thereof, in which, the liquid insulating material layer/the liquid conducting material layer, after curing, is used for insulating/connecting, making the isolated groove between the light emitting units extremely narrow (opening width≦0.4 μm, such as ≦0.3 μm), which improves single chip output, expands effective light emitting region area and improves light emitting efficiency; the serial/parallel connection yield is improved for this method avoids easy disconnection of wires across a groove with extremely large height difference in conventional high-voltage light emitting diodes; in addition, the manufacturing cost is reduced for the LED can be directly fabricated at the chip fabrication end.
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公开(公告)号:US20230088776A1
公开(公告)日:2023-03-23
申请号:US17806497
申请日:2022-06-12
Inventor: Anhe HE , Suhui LIN , Jiansen ZHENG , Kangwei PENG , Xiaoxiong LIN , Chenke HSU
Abstract: A light emitting diode includes: a light emitting layer arranged on at least part of a first semiconductor layer, and a second semiconductor layer; a local defect region over a portion of the second semiconductor layer and extending downward to the first semiconductor layer; a metal layer over a portion of the second semiconductor layer; an insulating layer covering the metal layer, the second and first semiconductor layers in the local defect region, with opening structures over the local defect region and the metal layer, respectively; and an electrode structure over the insulating layer and having a first layer and a second layer, and including a first-type electrode region and a second-type electrode region; wherein an upper surface and a lower surface of the first layer are not flat, and a lower surface of the second layer are both flat.
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公开(公告)号:US20200313059A1
公开(公告)日:2020-10-01
申请号:US16900538
申请日:2020-06-12
Inventor: Anhe HE , Suhui LIN , Jiansen ZHENG , Kangwei PENG , Xiaoxiong LIN , Chenke HSU
Abstract: A light emitting diode includes: a light emitting structure including a first semiconductor layer, a light emitting layer, a second semiconductor layer; a first metal layer arranged on at least a portion of the first semiconductor layer and in contact with the first semiconductor layer; and an electrode layer arranged over the light emitting structure, and having a first electrode layer and a second electrode layer. The first electrode layer is electrically coupled to the first and second semiconductor layers; the second electrode layer is configured for bonding with a package substrate, and includes a first and second bonding regions; the first bonding region is electrically coupled to the first semiconductor layer; the second bonding region is electrically coupled to the second semiconductor layer; and the first metal layer is not overlapped with the first bonding region of the second bonding region in a vertical direction.
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公开(公告)号:US20180122683A1
公开(公告)日:2018-05-03
申请号:US15859729
申请日:2018-01-01
Inventor: Chen-ke HSU , Xiaojuan SHAO , Jiansen ZHENG , Junpeng SHI , Kechuang LIN
IPC: H01L21/683 , B25J15/06
CPC classification number: H01L21/6838 , B25J15/0625 , H01L21/6835 , H01L33/00 , H01L33/0095
Abstract: A transfer head for transferring micro element includes a cavity; a plurality of vacuum paths connected with the cavity respectively with valves configured at the connection between the cavity and the vacuum paths and used for opening/closing; a plurality of suction nozzles connected with the vacuum paths, wherein the suction nozzles hold or release the micro element via vacuum pressure; vacuum pressure is transmitted by each vacuum path; a switching component for controlling valve to open/close each vacuum path, so as to control the suction nozzles to hold or release required micro element via vacuum pressure. Further, the switching component includes a CMOS memory circuit and an address electrode array connected to the CMOS memory circuit to realize micro-switch array. The transfer head can selectively transfer a plurality of micro elements at one time.
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公开(公告)号:US20170141261A1
公开(公告)日:2017-05-18
申请号:US15418708
申请日:2017-01-28
Inventor: Jinjian ZHENG , Feilin XUN , Mingyue WU , Jiansen ZHENG , Zhiming LI , Weihua DU , Heqing DENG , Chilun CHOU , Shuiqing LI , Junyong KANG
CPC classification number: H01L33/06 , H01L33/007 , H01L33/0075 , H01L33/10 , H01L33/12 , H01L2933/0025
Abstract: A light emitting diode (LED) includes quantum dots serving as the quantum well layer in the multiple-quantum well (MQW) structure, which can greatly improve the combination efficiency of electrons and holes due to quantum confinement effect; a nanoscale metal reflective layer is formed between the quantum barrier layer with nanoscale pits to instantly reflect the light emitted downwards from the MQW to the front of epitaxial structure; in addition, the nanoscale metal reflective layer can form surface plasmon to further improve light emitting efficiency.
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