US20160380173A1 - LED Sub-Mount and Method for Manufacturing Light Emitting Device Using the Sub-Mount - Google Patents
LED Sub-Mount and Method for Manufacturing Light Emitting Device Using the Sub-Mount Download PDFInfo
- Publication number
- US20160380173A1 US20160380173A1 US15/259,266 US201615259266A US2016380173A1 US 20160380173 A1 US20160380173 A1 US 20160380173A1 US 201615259266 A US201615259266 A US 201615259266A US 2016380173 A1 US2016380173 A1 US 2016380173A1
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- United States
- Prior art keywords
- mount
- sub
- adhesive
- led chip
- filling groove
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
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- H01L33/0079—
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
- H01L33/0093—Wafer bonding; Removal of the growth substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/20—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
- H01L33/22—Roughened surfaces, e.g. at the interface between epitaxial layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0066—Processes relating to semiconductor body packages relating to arrangements for conducting electric current to or from the semiconductor body
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
Abstract
A light emitting device manufacturing method includes the following steps. A sub-mount, which has a plurality of electrical-conductive layers, is provided, and a surface between every adjacent two of the electrical-conductive layers has an adhesive-filling groove. An LED chip, which has a bottom substrate, is mounted on the sub-mount by a flip-chip way, and two electrodes of the LED chip are in contact with adjacent two of the electrical-conductive layers. Glue is filled along the adhesive-filling groove to be guided into a gap between the LED chip and the sub-mount.
Description
- This application is a Divisional Application of the U.S. application Ser. No. 14/175,419, filed Feb. 7, 2014, which claims priority to Taiwan Application Serial Number 102105551, filed Feb. 18, 2013, all of which are herein incorporated by reference.
- Field of Invention
- The present invention relates to an LED sub-mount and a method for manufacturing the light-emitting device using the LED sub-mount.
- Description of Related Art
- A light emitting diode (LED) is a semiconductor light-emitting device, which is equipped with low power consumption, high luminous efficiency, long life and other environmental advantages that the traditional lights can hardly reach. In addition, different color LEDs, such as blue, ultraviolet, red and white LEDs were developed one by one, thereby making LEDs are more selective, and becoming one of the important light-emitting devices today.
- A conventional LED chip is mounted on a substrate by several ways. For example, an adhesive may be dispensed on a bottom surface of an emitting diode chip and mount the emitting diode chip on the bonding area on the substrate with the adhesive. Another way is using a eutectic bonding process to mount an LED chip on the substrate, that is, the LED chip is fixed to the substrate by a flip-chip way and the LED chip has a eutectic layer on its electrode. When the eutectic layer on the electrode is heated over a eutectic temperature, the eutectic layer melts and rapidly cures so as to bond the LED chip on the substrate.
- However, when the eutectic bonding process is used to mount an LED chip on the substrate, the LED chip may be damaged if a bottom substrate of the LED chip is removed by using a laser liftoff process. Without removing the bottom substrate of the LED chip, the light extraction efficiency of the LED chip can hardly be improved.
- It is therefore an objective of the present invention to provide an improved LED sub-mount and a method for manufacturing the light-emitting device using the LED sub-mount.
- In accordance with the foregoing and other objectives of the present invention, a LED sub-mount includes a substrate body and a plurality of first electrical-conductive layers. The substrate body has a first surface. The first electrical-conductive layers are positioned on the first surface of the substrate body, wherein the first surface between every adjacent two of the first electrical-conductive layers has an adhesive-filling groove.
- According to another embodiment disclosed herein, the substrate body further includes a second surface opposite to the first surface, the second surface has a plurality of second electrical-conductive layers disposed thereon, each of the second electrical-conductive layers is aligned with a corresponding first electrical-conductive layer and electrically connected with the corresponding first electrical-conductive layer via a through hole of the substrate body.
- According to another embodiment disclosed herein, the substrate body includes a silicon substrate.
- According to another embodiment disclosed herein, the adhesive-filling groove has a depth ranging from 5 microns to 100 microns.
- According to another embodiment disclosed herein, the adhesive-filling groove has a width ranging from 25 microns to 500 microns.
- In accordance with the foregoing and other objectives of the present invention, a light emitting device manufacturing method includes the steps of providing a sub-mount, which has a plurality of electrical-conductive layers, and a surface between every adjacent two of the electrical-conductive layers has an adhesive-filling groove; mounting an LED chip, which has a bottom substrate, on the sub-mount by a flip-chip way, and two electrodes of the LED chip are in contact with adjacent two of the electrical-conductive layers; filling an glue along the adhesive-filling groove to be guided into a gap between the LED chip and the sub-mount; and removing the bottom substrate of the LED chip.
- According to another embodiment disclosed herein, the light emitting device manufacturing method further includes a laser liftoff step to remove the bottom substrate of the LED chip to expose a surface of the LED chip.
- According to another embodiment disclosed herein, the light emitting device manufacturing method further includes a roughening treatment applied to the exposed surface of the LED chip.
- According to another embodiment disclosed herein, the adhesive-filling groove has a depth ranging from 5 microns to 100 microns.
- According to another embodiment disclosed herein, the adhesive-filling groove has a width ranging from 25 microns to 500 microns.
- According to another embodiment disclosed herein, the light emitting device manufacturing method further includes a eutectic bonding process to mount the LED chip on the sub-mount.
- Thus, the LED sub-mount and method for manufacturing the light-emitting device using the sub-mount disclosed herein enable the glue or adhesive to be easily filled into the adhesive-filling groove and guided into a gap between the LED chip and the sub-mount, thereby reducing the probability to damage LED chip while removing a bottom substrate of the LED chip using a laser liftoff step and improving the light extraction efficiency of LED chip. A roughening treatment is then applied to the exposed surface of the LED chips to enable the emitting light of the LED chips more uniform.
- It is to be understood that both the foregoing general description and the following detailed description are by examples, and are intended to provide further explanation of the invention as claimed.
- The invention can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:
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FIG. 1A illustrates a cross-sectional view of a LED sub-mount according to a first embodiment of this invention; -
FIG. 1B illustrates a top view of the LED sub-mount inFIG. 1A ; -
FIG. 2A illustrates a cross-sectional view of a LED sub-mount according to a second embodiment of this invention; -
FIG. 2B illustrates a top view of the LED sub-mount inFIG. 2A ; -
FIG. 3A illustrates a cross-sectional view of a LED sub-mount according to a third embodiment of this invention; -
FIG. 3B illustrates a top view of the LED sub-mount inFIG. 3A ; -
FIG. 4A illustrates a cross-sectional view of a LED sub-mount according to a fourth embodiment of this invention; -
FIG. 4B illustrates a top view of the LED sub-mount inFIG. 4A ; -
FIGS. 5A-5D illustrate a series of cross-sectional views to demonstrate a light emitting device manufacturing method according to an embodiment of this invention; and -
FIGS. 6-7 illustrate a series of cross-sectional views to demonstrate a light emitting device manufacturing method according to another embodiment of this invention. - Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
- In order to solve the drawbacks associated with the use of conventional eutectic layer flip-chip die-bonding process, the present invention provides a suitable LED sub-mount and manufacturing method using the LED sub-mount, such that the subsequent removal of a bottom substrate of the LED chip using a laser liftoff step has less probability to damage the LED chip and the light extraction efficiency of LED chip can be improved. The sub-mount and manufacturing method using the sub-mount are described in detail with the drawings.
- Referring to both
FIG. 1A andFIG. 1B ,FIG. 1A illustrates a cross-sectional view of a LED sub-mount according to a first embodiment of this invention, andFIG. 1B illustrates a top view of the LED sub-mount inFIG. 1A . A sub-mount 100 includes asubstrate body 102 and two first electrical-conductive layers 104. The first electrical-conductive layer 104 is positioned on afirst surface 102 a of thesubstrate body 102. A first surface between two (immediately) adjacent first electrical-conductive layers 104 has an adhesive-fillinggroove 106 thereon. The adhesive-fillinggroove 106 is used to be filled by a glue or adhesive. The adhesive-fillinggroove 106 is designed to have such dimensions for the glue or adhesive to be easily filled into the adhesive-fillinggroove 106 and guided into a gap between the LED chip and the sub-mount 100. In this embodiment, the adhesive-fillinggroove 106 has a depth (d) ranging from 5 microns to 100 microns, but not being limited to. The adhesive-fillinggroove 106 has a width (w) ranging from 25 microns to 500 microns, but not being limited to. In addition, thesubstrate body 102 may be a silicon substrate, but not being limited to. - Referring to both
FIG. 2A andFIG. 2B ,FIG. 2A illustrates a cross-sectional view of a LED sub-mount according to a second embodiment of this invention, andFIG. 2B illustrates a top view of the LED sub-mount inFIG. 2A . The second embodiment is different from the first embodiment in that the sub-mount 100′ has electrical-conductive layers at two opposite surfaces thereof, and the sub-mount 100 has electrical-conductive layers at one side surface only. The sub-mount 100′ includes asubstrate body 102′, two first electrical-conductive layers 104 a and two second electrical-conductive layers 104 b. The first electrical-conductive layer 104 a is positioned on thefirst surface 102 a of thesubstrate body 102′ while the second electrical-conductive layer 104 b is positioned on asecond surface 102 b of thesubstrate body 102′. Thefirst surface 102 a and thesecond surface 102 b are two opposite surfaces of thesubstrate body 102′. In addition, each second electrical-conductive layer 104 b is aligned with a corresponding first electrical-conductive layer 104 a and is electrically connected with the corresponding first electrical-conductive layer 104 a via a throughhole 108 of thesubstrate body 102′ (i.e., via an electrical-conductive layer 104 c inside the through hole 108). The sub-mount 100′ can be as a substrate for mounting a surface mounting device thereon. A first surface between two (immediately) adjacent first electrical-conductive layers 104 a has an adhesive-fillinggroove 106 thereon. The adhesive-fillinggroove 106 is used to be filled by a glue or adhesive. The adhesive-fillinggroove 106 is designed to have such dimensions for the glue or adhesive to be easily filled into the adhesive-fillinggroove 106 and guided into a gap between the LED chip and the sub-mount 100′. Similarly, the adhesive-fillinggroove 106 has a depth ranging from 5 microns to 100 microns, but not being limited to. The adhesive-fillinggroove 106 has a width ranging from 25 microns to 500 microns, but not being limited to. In addition, thesubstrate body 102′ may be a silicon substrate, but not being limited to. - Referring to both
FIG. 3A andFIG. 3B ,FIG. 3A illustrates a cross-sectional view of a LED sub-mount according to a third embodiment of this invention, andFIG. 3B illustrates a top view of the LED sub-mount inFIG. 3A . The third embodiment is different from the first embodiment in that the sub-mount 200 a is used for mounting multiple LED chips thereon while the sub-mount 100 is used for mounting a single LED chip thereon only. The sub-mount 200 a includes asubstrate body 202 a and four or more first electrical-conductive layers 204. The first electrical-conductive layer 204 is positioned on the first surface of thesubstrate body 202 a. A first surface between two (immediately) adjacent first electrical-conductive layers 204 has an adhesive-fillinggroove 206 thereon such that the sub-mount 200 a can be used to mount three LED chips (210 a, 210 b, 210 c) thereon, and each LED chip crosses a corresponding adhesive-fillinggroove 206. The adhesive-fillinggroove 206 is used to be filled by a glue or adhesive. The adhesive-fillinggroove 206 is designed to have such dimensions for the glue or adhesive to be easily filled into the adhesive-fillinggroove 206 and guided into a gap between the LED chip and the sub-mount 200 a. In this embodiment, the adhesive-fillinggroove 206 has a depth ranging from 5 microns to 100 microns, but not being limited to. The adhesive-fillinggroove 206 has a width ranging from 25 microns to 500 microns, but not being limited to. In addition, thesubstrate body 202 a may be a silicon substrate, but not being limited to. - Referring to both
FIG. 4A andFIG. 4B ,FIG. 4A illustrates a cross-sectional view of a LED sub-mount according to a fourth embodiment of this invention, andFIG. 4B illustrates a top view of the LED sub-mount inFIG. 4A . The fourth embodiment is different from the third embodiment in that the sub-mount 200 b is used for mounting multiple LED chips in two-dimension array while the sub-mount 200 a is used for mounting LED chips in one-dimension array. The sub-mount 200 b includes asubstrate body 202 b and three first electrical-conductive layers 204 a. The first electrical-conductive layer 204 a is positioned on the first surface of thesubstrate body 202 b. A first surface between two (immediately) adjacent first electrical-conductive layers 204 a has an adhesive-fillinggroove 206, and the first electrical-conductive layer 204 a is wider (compared with the first electrical-conductive layer 204). Therefore, the sub-mount 200 b can be used to mount four LED chips (210 d, 210 e, 210 f, 210 g), and each LED chip crosses a corresponding adhesive-fillinggroove 206. The adhesive-fillinggroove 206 is used to be filled by a glue or adhesive. The adhesive-fillinggroove 206 is designed to have such dimensions for the glue or adhesive to be easily filled into the adhesive-fillinggroove 206 and guided into a gap between the LED chip and the sub-mount 200 b. In this embodiment, the adhesive-fillinggroove 206 has a depth ranging from 5 microns to 100 microns, but not being limited to. The adhesive-fillinggroove 206 has a width ranging from 25 microns to 500 microns, but not being limited to. In addition, thesubstrate body 202 a may be a silicon substrate, but not being limited to. -
FIGS. 5A-5D illustrate a series of cross-sectional views to demonstrate alight emitting device 300 manufacturing method according to an embodiment of this invention. InFIG. 5A , aLED chip 210 with abottom substrate 212 is mounted on a sub-mount 100 by a flip-chip way, and two electrodes of theLED chip 210 are in contact with adjacent two of the electrical-conductive layers 104. When theLED chip 210 is mounted on the sub-mount 100 by a eutectic bonding process, a gap between theLED chip 210 and the sub-mount 100 is less than 3 microns, which is not conducive to filling an adhesive to the gap between theLED chip 210 and the sub-mount 100. InFIG. 5B , the adhesive-fillinggroove 106 is designed to have such dimensions for the glue or adhesive 110 to be easily filled into the adhesive-fillinggroove 106 and guided into the gap between theLED chip 210 and the sub-mount 100. InFIG. 5C , when the glue or adhesive 110 filled into the adhesive-fillinggroove 106 is cured, a laser liftoff step may be used to remove thebottom substrate 212 of theLED chip 210 to expose a surface of theLED chip 210. Because the glue or adhesive 110 filled between theLED chip 210 and the sub-mount 100 is cured, the removing force applied to thebottom substrate 212 has less chance to damage theLED chip 210 when theLED chip 210 is reliably mounted on the sub-mount 100. InFIG. 5D , after removing thebottom substrate 212, an emitting surface of theLED chip 210 forms arough surface 213 to enable the emitting light more uniform. -
FIGS. 6-7 illustrate a series of cross-sectional views to demonstrate a light emitting device manufacturing method according to another embodiment of this invention. The manufacturing method ofFIGS. 5A-5D is also used to mount multiple LED chips (210 a, 210 b, 210 c) on the sub-mount 200 a and fill the glue into the adhesive-fillinggroove 206. After the glue within the adhesive-fillinggroove 206 is cured, a substrate removal step, e.g., a laser liftoff step, is used to remove a bottom substrate (212 a, 212 b, 212 c) of the LED chips (210 a, 210 b, 210 c) so as to improve the light extraction efficiency of LED chip. A roughening treatment is applied to the exposed surface of the LED chips (210 a, 210 b, 210 c) to form rough surfaces (213 a, 213 b, 213 c) so as to enable the emitting light of the LED chips (210 a, 210 b, 210 c) more uniform. - According to the above-discussed embodiments, the LED sub-mount and method for manufacturing the light-emitting device using the LED sub-mount disclosed herein enable the glue or adhesive to be easily filled into the adhesive-filling groove and guided into a gap between the LED chip and the sub-mount, thereby reducing the probability to damage LED chip while removing a bottom substrate of the LED chip using a laser liftoff step and improving the light extraction efficiency of LED chip. A roughening treatment is then applied to the exposed surface of the LED chips to enable the emitting light of the LED chips more uniform.
- Although the present invention has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the embodiments contained herein.
- It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims.
Claims (7)
1. A light emitting device manufacturing method comprising:
providing a sub-mount, which has a plurality of electrical-conductive layers, and a surface between every adjacent two of the electrical-conductive layers has an adhesive-filling groove;
mounting an LED chip, which has a bottom substrate, on the sub-mount by a flip-chip way, and two electrodes of the LED chip are in contact with adjacent two of the electrical-conductive layers; and
filling an glue along the adhesive-filling groove to be guided into a gap between the LED chip and the sub-mount.
2. The light emitting device manufacturing method of claim 1 further comprising a laser liftoff step to remove the bottom substrate of the LED chip to expose a surface of the LED chip.
3. The light emitting device manufacturing method of claim 2 further comprising a roughening treatment applied to the exposed surface of the LED chip.
4. The light emitting device manufacturing method of claim 1 , wherein the adhesive-filling groove has a depth ranging from 5 microns to 100 microns.
5. The light emitting device manufacturing method of claim 1 , wherein the adhesive-filling groove has a width ranging from 25 microns to 500 microns.
6. The light emitting device manufacturing method of claim 1 further comprising a eutectic bonding process to mount the LED chip on the sub-mount.
7. The light emitting device manufacturing method of claim 1 , wherein the adjacent two of the electrical-conductive layers are in direct contact with an outer side surface of the adhesive-filling groove and not in direct contact with an inner side surface of the adhesive-filling groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US15/259,266 US20160380173A1 (en) | 2013-02-18 | 2016-09-08 | LED Sub-Mount and Method for Manufacturing Light Emitting Device Using the Sub-Mount |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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TW102105551 | 2013-02-18 | ||
TW102105551A TWI483434B (en) | 2013-02-18 | 2013-02-18 | Led sub-mount and method for manufacturing light-emitting device using the sub-mount |
US14/175,419 US9461213B2 (en) | 2013-02-18 | 2014-02-07 | LED sub-mount and method for manufacturing light emitting device using the sub-mount |
US15/259,266 US20160380173A1 (en) | 2013-02-18 | 2016-09-08 | LED Sub-Mount and Method for Manufacturing Light Emitting Device Using the Sub-Mount |
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US14/175,419 Division US9461213B2 (en) | 2013-02-18 | 2014-02-07 | LED sub-mount and method for manufacturing light emitting device using the sub-mount |
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US20160380173A1 true US20160380173A1 (en) | 2016-12-29 |
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US14/175,419 Active US9461213B2 (en) | 2013-02-18 | 2014-02-07 | LED sub-mount and method for manufacturing light emitting device using the sub-mount |
US15/259,266 Abandoned US20160380173A1 (en) | 2013-02-18 | 2016-09-08 | LED Sub-Mount and Method for Manufacturing Light Emitting Device Using the Sub-Mount |
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US14/175,419 Active US9461213B2 (en) | 2013-02-18 | 2014-02-07 | LED sub-mount and method for manufacturing light emitting device using the sub-mount |
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US (2) | US9461213B2 (en) |
JP (1) | JP2014158028A (en) |
TW (1) | TWI483434B (en) |
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CN111326609A (en) * | 2018-12-14 | 2020-06-23 | 昆山工研院新型平板显示技术中心有限公司 | Light emitting device, manufacturing method of light emitting device and display device |
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CN103247743B (en) * | 2013-05-24 | 2016-04-20 | 安徽三安光电有限公司 | Surface stuck type luminescent device and preparation method thereof |
TWI596985B (en) * | 2015-07-22 | 2017-08-21 | 億光電子工業股份有限公司 | Light emitting device |
KR102650341B1 (en) * | 2016-11-25 | 2024-03-22 | 엘지전자 주식회사 | Display device using semiconductor light emitting device and method for manufacturing |
KR102356216B1 (en) * | 2017-05-30 | 2022-01-28 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Light emitting device package and light unit |
KR102385940B1 (en) * | 2017-09-01 | 2022-04-13 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Light emitting device package and light source unit |
KR102385939B1 (en) * | 2017-09-01 | 2022-04-13 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Light emitting device package |
KR102426118B1 (en) * | 2017-10-13 | 2022-07-27 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Light emitting device package and light source unit |
KR102432217B1 (en) * | 2017-11-07 | 2022-08-12 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Light emitting device package and lighting apparatus |
KR102550291B1 (en) * | 2018-01-16 | 2023-07-03 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Light emitting device package and light source unit |
KR102508538B1 (en) * | 2018-02-08 | 2023-03-09 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Light emitting device package and light unit |
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CN111326609A (en) * | 2018-12-14 | 2020-06-23 | 昆山工研院新型平板显示技术中心有限公司 | Light emitting device, manufacturing method of light emitting device and display device |
CN111326609B (en) * | 2018-12-14 | 2021-05-25 | 成都辰显光电有限公司 | Light emitting device, manufacturing method of light emitting device and display device |
US11495712B2 (en) | 2018-12-14 | 2022-11-08 | Chengdu Vistar Optoelectronics Co., Ltd. | Light emitting device, method for making the same and display apparatus |
Also Published As
Publication number | Publication date |
---|---|
US9461213B2 (en) | 2016-10-04 |
US20140231858A1 (en) | 2014-08-21 |
TWI483434B (en) | 2015-05-01 |
JP2014158028A (en) | 2014-08-28 |
TW201434177A (en) | 2014-09-01 |
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