KR20150042954A - Side-view light emitting device and method of making the same - Google Patents
Side-view light emitting device and method of making the same Download PDFInfo
- Publication number
- KR20150042954A KR20150042954A KR20130121794A KR20130121794A KR20150042954A KR 20150042954 A KR20150042954 A KR 20150042954A KR 20130121794 A KR20130121794 A KR 20130121794A KR 20130121794 A KR20130121794 A KR 20130121794A KR 20150042954 A KR20150042954 A KR 20150042954A
- Authority
- KR
- South Korea
- Prior art keywords
- light emitting
- metal frame
- substrate
- pad
- emitting device
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 104
- 229910052751 metal Inorganic materials 0.000 claims abstract description 104
- 239000000758 substrate Substances 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims description 21
- 238000000465 moulding Methods 0.000 claims description 9
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Abstract
Description
The present invention relates to a side-emitting light-emitting device and a method of manufacturing the same, and more particularly to a side-emitting light-emitting device that does not use a lead frame and a manufacturing method thereof.
BACKGROUND ART [0002] Light emitting devices are inorganic semiconductor devices that emit light generated by recombination of electrons and holes. Recently, they are used in various fields such as displays, automobile lamps, and general lighting. Since the light emitting device has a long lifetime, low power consumption, and a high response speed, the light emitting device package including the light emitting device is expected to replace the conventional light source.
In general, a light emitting device package is manufactured by mounting a light emitting chip on a substrate, and electrically connecting a light emitting chip and a lead frame formed on the substrate. A ceramic substrate, a PCB substrate, or the like is used as the substrate, and the light emitting device package is manufactured by dicing or braking the substrate to individualize the substrate. However, the light emitting device including the lead frame has a disadvantage that the lifetime is shortened due to discoloration or damage of the lead frame, and the heat emission efficiency is lowered. In order to overcome these disadvantages, a technique has been proposed in which the substrate itself is manufactured by using a metal such as an Al substrate.
However, it is possible to pattern the lead on the substrate using metal or the like only on the upper surface or the lower surface. Accordingly, the size of the light emitting surface of the light emitting device package is limited, and when applied to an application such as a small display in which the demand for the light emitting device is increasing recently, the size of the entire application is limited.
Therefore, the conventional side light emitting light emitting device is manufactured in the form including the lead frame. The side-emission light-emitting device including the lead frame has a poor thermal characteristic, shortening the lifetime of the light-emitting device, and lowering the reflectivity of the housing, resulting in a decrease in light output. Moreover, in the case of a UV light emitting device used for a small display or a sterilizing device, discoloration or damage of the lead frame due to UV light occurs, and the reliability and lifetime of the light emitting device are deteriorated.
Accordingly, there is a demand for a side-emission light-emitting device that is excellent in electrical, optical, and thermal characteristics equivalent to those of existing top-view light-emitting devices and that is reduced in size and thickness.
A problem to be solved by the present invention is to provide a side luminescent light emitting device which is small in size and thin, and has excellent electrical, optical and thermal characteristics.
Another problem to be solved by the present invention is to provide a method of manufacturing a side-emission light-emitting device having an excellent process yield.
A light emitting device according to an embodiment of the present invention includes: a substrate including a first side and a second side opposite to the first side; And a light emitting chip mounted on a first side of the substrate, the substrate including a first metal frame, a second metal frame spaced apart from the first metal frame, and a second metal frame positioned between the first and second metal frames, And the first metal frame and the second metal frame are electrically connected to the light emitting chip, respectively.
The lower surface of the first metal frame and the lower surface of the second metal frame may be exposed on the lower surface of the substrate.
Furthermore, the substrate may further include a first pad and a second pad formed on a lower surface thereof or on a lower surface and an upper surface thereof, respectively, wherein the first and second pads are electrically connected to the first and second metal frames, Can be connected.
At least one of the first pad and the second pad may include a recess embedded from a lower surface of the substrate.
The substrate may further include a solder mask positioned between the first pad and the second pad.
Meanwhile, the substrate may include a cavity formed on the first side, and the light emitting chip may be mounted in the cavity.
The insulating layer, the first metal frame, and the second metal frame may be partially exposed in the cavity.
The light emitting device may further include a molding part for filling the cavity and sealing the light emitting chip.
The molding part may include a phosphor.
In some embodiments, the light emitting chip may emit light having a peak wavelength in the ultraviolet region.
Also, at least one of the first metal frame and the second metal frame may include Al.
A method of manufacturing a light emitting device according to another embodiment of the present invention includes a first metal frame, a second metal frame spaced apart from the first metal frame, and an insulating layer positioned between the first and second metal frames Providing a substrate comprising a first side and a second side opposite to the first side; At least two light emitting chips are mounted on the first side, and the at least two light emitting chips are electrically connected to the first and second metal frames, respectively; And cutting the area between the at least two light emitting chips to individualize the substrate.
The manufacturing method may further include forming a plurality of holes positioned in a region between the light emitting chips before mounting the light emitting chip, wherein the plurality of holes are formed in the first metal frame and the second metal And may include a first pad hole and a second pad hole that respectively penetrate the frame.
The method may further include forming first and second pads covering the side surfaces of the first pad hole and the second pad hole after forming the plurality of holes.
Individualizing the substrate may include dividing the first pad hole and the second pad hole.
According to the present invention, since the light emitting chip is formed on the side surface of the substrate, the light emitting device can be made small and thin. Further, while the light emitting chip is mounted on the side surface of the substrate, it is possible to provide a side light emitting light emitting device which is similar to the structure of the conventional top light emitting light emitting device and has excellent electrical, optical and thermal characteristics.
Further, according to the manufacturing method of the present invention, since a plurality of light emitting devices can be provided through a series of steps, a light emitting device can be manufactured efficiently.
1 and 2 are a perspective view and a front view illustrating a light emitting device according to an embodiment of the present invention.
3 to 8 are perspective views illustrating a method of manufacturing a light emitting device according to another embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided by way of example so that those skilled in the art can sufficiently convey the spirit of the present invention. Therefore, the present invention is not limited to the embodiments described below, but may be embodied in other forms. In the drawings, the width, length, thickness, etc. of components may be exaggerated for convenience. It is also to be understood that when an element is referred to as being "above" or "above" another element, But also includes the case where there are other components in between. Like reference numerals designate like elements throughout the specification.
1 and 2 are a perspective view and a front view illustrating a light emitting device according to an embodiment of the present invention.
Referring to FIGS. 1 and 2, the light emitting device includes a
The
The
The
The first and
The
At least one of the
The
The insulating
The insulating
In addition, the
The
Furthermore, the
The
Referring again to FIGS. 1 and 2, the light emitting device includes a
The
The
Hereinafter, a detailed description of well-known technical details related to the
The light emitting device may further include a
The
According to the light emitting device of the embodiment described above, the light emitting device can be miniaturized and thinned, and can have electric, optical, and thermal characteristics equivalent to those of the conventional top surface light emitting device.
3 to 8 are perspective views illustrating a method of manufacturing a light emitting device according to another embodiment of the present invention. 1 and 2 are substantially the same as or similar to those described with reference to FIG. 1 and FIG. 2, the detailed description of the overlapping constitution will be omitted . 3 and 8, the first and second side surfaces, the lower surface, and the upper surface of the
Referring to FIG. 3, the
3 (a), the
The
Referring to FIG. 4, a plurality of
The plurality of
5, a
The
Next, referring to FIG. 6, the first and second metal frames 110 and 120 and the insulating
The
Referring to FIG. 7, the
The
Further, the
Next, referring to Fig. 8, if the
On the other hand, according to this embodiment, a plurality of light emitting devices can be provided through a series of processes by adjusting the number of regions to be individualized on the
The present invention is not limited to the above-described various embodiments and features, and various modifications and changes may be made without departing from the technical idea of the present invention.
Claims (15)
And a light emitting chip mounted on a first side of the substrate,
The substrate includes a first metal frame, a second metal frame spaced apart from the first metal frame, and an insulating layer positioned between the first and second metal frames,
Wherein the first metal frame and the second metal frame are electrically connected to the light emitting chip, respectively.
Wherein a bottom surface of the first metal frame and a surface of the second metal frame are exposed on a lower surface of the substrate.
The substrate further includes a first pad and a second pad formed on a lower surface thereof or on a lower surface and an upper surface thereof,
Wherein the first and second pads are electrically connected to the first and second metal frames, respectively.
Wherein at least one of the first pad and the second pad includes a recess embedded from a lower surface of the substrate.
Wherein the substrate further comprises a solder mask positioned between the first pad and the second pad.
Wherein the substrate comprises a cavity formed on the first side,
And the light emitting chip is mounted in the cavity.
Wherein the insulating layer, the first metal frame, and the second metal frame are partially exposed in the cavity.
And a molding part for filling the cavity and sealing the light emitting chip.
Wherein the molding part comprises a phosphor.
Wherein the light emitting chip emits light having a peak wavelength in an ultraviolet region.
Wherein at least one of the first metal frame and the second metal frame comprises Al.
At least two light emitting chips are mounted on the first side, and the at least two light emitting chips are electrically connected to the first and second metal frames, respectively;
And cutting the region between the at least two light emitting chips to individualize the substrate.
Further comprising forming a plurality of holes located in a region between the light emitting chips before mounting the light emitting chip,
Wherein the plurality of holes include a first pad hole and a second pad hole penetrating the first metal frame and the second metal frame, respectively.
Further comprising forming a first pad and a second pad covering the side surfaces of each of the first pad hole and the second pad hole after forming the plurality of holes.
Wherein individualizing the substrate includes dividing the first pad hole and the second pad hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20130121794A KR20150042954A (en) | 2013-10-14 | 2013-10-14 | Side-view light emitting device and method of making the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20130121794A KR20150042954A (en) | 2013-10-14 | 2013-10-14 | Side-view light emitting device and method of making the same |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20150042954A true KR20150042954A (en) | 2015-04-22 |
Family
ID=53035839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR20130121794A KR20150042954A (en) | 2013-10-14 | 2013-10-14 | Side-view light emitting device and method of making the same |
Country Status (1)
Country | Link |
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KR (1) | KR20150042954A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108954201A (en) * | 2018-09-12 | 2018-12-07 | Tcl华瑞照明科技(惠州)有限公司 | LED lamp bead and LED illumination lamp |
KR20210151029A (en) * | 2017-04-26 | 2021-12-13 | 삼성전자주식회사 | Light emitting device package |
US11677059B2 (en) | 2017-04-26 | 2023-06-13 | Samsung Electronics Co., Ltd. | Light-emitting device package including a lead frame |
-
2013
- 2013-10-14 KR KR20130121794A patent/KR20150042954A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210151029A (en) * | 2017-04-26 | 2021-12-13 | 삼성전자주식회사 | Light emitting device package |
US11677059B2 (en) | 2017-04-26 | 2023-06-13 | Samsung Electronics Co., Ltd. | Light-emitting device package including a lead frame |
CN108954201A (en) * | 2018-09-12 | 2018-12-07 | Tcl华瑞照明科技(惠州)有限公司 | LED lamp bead and LED illumination lamp |
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