CN1224098C - Solid luminous device packaged radiating member and its making method - Google Patents
Solid luminous device packaged radiating member and its making method Download PDFInfo
- Publication number
- CN1224098C CN1224098C CNB021071403A CN02107140A CN1224098C CN 1224098 C CN1224098 C CN 1224098C CN B021071403 A CNB021071403 A CN B021071403A CN 02107140 A CN02107140 A CN 02107140A CN 1224098 C CN1224098 C CN 1224098C
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- cupule
- electrode
- light
- emitting device
- device encapsulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/93—Batch processes
- H01L24/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L24/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
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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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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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
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Abstract
The present invention relates to a light-emitting diode (LED) with a heat radiation structure, and a manufacturing method thereof. The present invention is characterized in that an electrical insulated cooling liquid for radiating heat is filled in a closed containing chamber where a metal base board is, and at least one LED chip is arranged on the metal base board. The heat radiation structure is formed in a metal wall part erected on the metal base board for supporting a transparent cover part on the closed containing chamber in a proper position. Furthermore, the erect wall part is closely surrounded with at least one LED chip; thus, joule heat generated in the LED chip can quickly diffuse to the erect wall part via the electrical insulated cooling liquid for radiating heat and then downwards diffuse to the metal base board along with the wall part; the metal base board is engaged to a large exterior heat radiator for radiating heat via a printed circuit board to avoid that the LED generates a superheating phenomenon. The present invention can also avoid that air bubbles generate adverse scattering effect on light rays emitted by the LED.
Description
Technical field
The present invention relates to the radiating component of a kind of light-emitting diode (LED), especially therefore the LED that can operate under high drive current situation in the application of the high brightness of needs, can stably send required brightness.
Background technology
Light-emitting diode (LED) as its letter, is the light-emitting device that is made of semiconductor p-n junction rectifier.Recently, LED only is applied to indicator of instrument or its shows signal that its low-light level can not cause adverse influence.For example, be applied in the application of only in extremely near distance, distinguishing for naked eyes as the power supply On/Off indicating device of TV (TV) system etc. or its brightness such as digital displaying signal on clock and the electronic panel.And its power consumption is minimum, and its radiating effect must not take in.
Yet because recent LED development of technology, LED is also brighter and have more multicolour, comprises dark blue to exceeding visible light etc.Therefore, the application of the LED of visible light is the scope of forefathers expection head and shoulders above, as the color monitor of open air, traffic light signal, automobile cresset etc.In these are used, be to utilize the LED bulb of gathering together to obtain enough brightness.Yet the structure of gathering together not only needs labour-intensively just to be assembled with high, and it will be extremely huge more producing its encapsulation, and cause the problem that relevant optical design and radiating effect thereof will be difficult to make the best of both worlds.
Therefore, the chip that has a chip or an array at present is embedded in the intensive structure and the LED assembly that can send high-brightness light is the main key of related industry.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of radiating component of light-emitting device, make light-emitting device avoid temperature rise with radiating component, and can be applicable to high brightness, high electric current, and undersized application in.
Another object of the present invention provides a kind of encapsulation of light-emitting device, and according to the structure of this encapsulation, it can make the light-ray condensing that is sent become a light beam that is applicable to application-specific, and the heat that will wherein be produced extremely easily dissipates simultaneously.
According to a kind of embodiment of the present invention, a kind of radiating component of light-emitting device encapsulation is provided, comprise: a metal substrate, have a upper surface and a lower surface, this upper surface forms a cupule, and it is formed thereon to have a metal welding bed of material with respect to the lower surface of upper surface, wherein cupule has an inner surface and an outer surface, and that outer surface has a metal oxide layer is formed thereon, it is formed thereon that the inner surface of metal oxide layer and cupule all has an electrode layer, and electrode layer has two electrodes separately, one electrode is formed on the inner surface of cupule, and another electrode then is formed on the outer surface of cupule; The cooling fluid of one electric insulation is filled among the cupule, and is limited to by the inner surface of cupule; And a transparent cap, connect airtight in metal substrate, the cooling fluid that is filled in the electric insulation among the cupule is sealed among the cupule, and transparent cap has an inner surface, it forms the convex surface towards light-emitting device.
Preferably, metal substrate is made of a Heat Conduction Material.
Preferably, metal oxide layer is made of the monoxide of this Heat Conduction Material.
And the radiating component of light-emitting device encapsulation also comprises a printed circuit board (PCB), and wherein printed circuit board (PCB) is made of this Heat Conduction Material at least; Be formed with at least one electrode on one surface of printed circuit board (PCB); And utilize to engage at least one electrode to the metal welding bed of material, and engage another at least one electrode another electrode to the bottom of the outer surface of each cupule, and the light-emitting device encapsulation is electrically connected to printed circuit board (PCB).
Preferably, electrode layer is made of a reflective metal.
Preferably, transparent cap has an outer surface, and this outer surface then forms another convex surface relative with the convex surface of its inner surface.
According to another embodiment of the present invention, a kind of manufacture method of radiating component of light-emitting device encapsulation is provided, comprise following steps: a preparation process, prepare a metal substrate, wherein, metal substrate will have a upper surface, on it and be formed with a plurality of cupules, and this upper surface be handled through a surface finish; One plating step is electroplated a metal welding bed of material on a lower surface of this metal substrate; One fills black step, filling one dielectric ink to a plurality of cupules, thereby a upper limb of dielectric ink and a upper limb of each cupule are trimmed in fact; One anodic oxidation step forms a metal oxide layer on the upper surface of the metal substrate except the inner surface of each cupule, and the inner surface of each cupule then avoids forming metal oxide layer by the dielectric ink protection; One ink removing step is removed dielectric ink; One plating step is electroplated an electrode layer on the inner surface of metal oxide layer and each cupule; One electrode separation step, remove the inboard of the upper limb of each cupule, also remove local metal oxide layer and electrode layer on the inboard of upper limb of each cupule simultaneously, thereby electrode layer is distinguished into the electrode on the inner surface that is positioned at each cupule, and is positioned at another electrode on the outer surface of each cupule; One installation steps are mounted to an electrode of light-emitting device on the electrode of bottom side of inner surface of each cupule, and utilize a routing bonding method another electrode of light-emitting device to be connected to another electrode on the outer surface of each cupule; One filling step is filled to the cooling fluid of an electric insulation among a plurality of cupules, thereby a upper limb of this cooling fluid and a upper limb of each cupule is trimmed in fact; One application step is coated a glue material on one periphery of bottom of outer surface of each cupule; One covers step, covers each cupule with a transparent cap, and utilizes this glue material and the periphery of bottom of the outer surface of the preceding periphery of transparent cap and each cupule is connected airtight together; Reach a cutting step, cut this metal substrate, to form this light-emitting device encapsulation.
Preferably, among preparation process, metal substrate is made of a Heat Conduction Material.
Preferably, among the anodic oxidation step, metal oxide layer is made of the monoxide of this Heat Conduction Material.
And the manufacture method of the radiating component of light-emitting device encapsulation also comprises following steps: installation steps, the light-emitting device encapsulation is mounted on the printed circuit board (PCB), and wherein, this printed circuit board (PCB) is made of this Heat Conduction Material at least; Be formed with at least one electrode on one surface of this printed circuit board (PCB); And utilize to engage at least one electrode to the metal welding bed of material, and engage another at least one electrode another electrode to the bottom of the outer surface of each cupule, and the light-emitting device encapsulation is electrically connected to printed circuit board (PCB).
Preferably, among the plating step on the inner surface of metal oxide layer and each cupule, this electrode layer is made of a reflective metal at the electroplated electrode layer.
Preferably, among the covering step, an inner surface of transparent cap forms a convex surface, and an outer surface of transparent cap then forms another convex surface relative with this convex surface.
Description of drawings
Fig. 1 is that wherein this encapsulation is mounted on the external substrate according to the structural map of the LED encapsulation with radiating component of the first embodiment of the present invention.
Fig. 2 A to Fig. 2 L is the schematic diagram according to the manufacture method of the radiating component of the light-emitting device encapsulation of the second embodiment of the present invention.
Fig. 3 is the structural map according to a variation of the first embodiment of the present invention.
Fig. 4 is the structural map according to another variation of the first embodiment of the present invention.
Embodiment
In the explanation of following preferred embodiment,, the solid luminous device encapsulation 1 with radiating component according to the first embodiment of the present invention is described with reference to Fig. 1.
Solid luminous device encapsulation 1 comprises the cooling fluid 30 of metal substrate 10, at least one led chip 20, electric insulation, transparent cap 40, and printed circuit board (PCB) (PCB) 50.
Preferably on surface thereof, be formed with the wall portion 16 of setting, thereby this surface of metal substrate 10 will form cupule 11 by the metal substrate that material constituted 10 that has splendid heat conductivity as aluminium, copper etc.And, on another surface, then have the metal welding bed of material 12 as copper, silver or gold with respect to the metal substrate 10 of cupule 11, in order to the electrode 51 that is connected to PCB50, and preferably, PCB50 is aluminium base PCB.For example, can use surface mount technology (SMT) and the metal welding bed of material 12 is electrically connected to electrode 51.And it is as the function of insulating barrier and preferably for the metal oxide layer 14 of alumina layer (aluminium oxide) at first is formed on the outer surface of cupule 11, but is not formed on the inner surface of cupule 11.Then, preferably for as the electrode layer 15 of the reflective metal of silver, gold or aluminium etc. the inner surface on both that is formed on alumina layer 14 and cupule 11, thereby it can be covered.
In detail, electrode layer 15 is formed on the total inner surface of alumina layer 14 and cupule 11.In in the case, with suitable processing, the inboard of the upper limb of cupule 11 is removed, and remove this upper limb of cupule outside simultaneously go up local alumina layer 14 and local electrode layer 15, thereby electrode layer 15 can be distinguished into two parts, one is called electrode 15b, be positioned on the inner surface of cupule and be connected to metal substrate 10 in fact, another is called electrode 15a, be positioned on the alumina layer 14 of insulation function of outer surface of cupule, and as the usefulness of other outer electrode of metal substrate 10.Preferably, the suitable processing of taking in order to form electrode 15a and electrode 15b is as the mechanical polishing method.
After electrode 15a and the electrode 52 of PCB50 are suitable the electrical connection, can be mounted on the external substrate 60 according to the solid luminous device encapsulation 1 with radiating component that the first embodiment of the present invention provided, it possesses the function of being used as great external heat sink inherently.Therefore, according to radiating component of the present invention, can promptly diffuse to the cupule 11 of setting via the electric insulation cooling fluid 30 of heat radiation by the luminous Joule heat that at least one led chip 20 produced, and diffuse to metal substrate 10 downwards along cupule 11, metal substrate 10 then engages with external substrate 60 in order to heat radiation via PCB50, thereby can avoid the temperature rising of luminous led chip 20.
And, can select the cooling fluid 30 and transparent cap 40 of the very approaching electric insulation of its other refractive index, thereby can make the caused refraction effect of two constituent materials reduce to minimum.In addition, the outer surface of transparent cap 40 optionally is configured as the profile of optics, thereby can make the light-ray condensing that at least one LED sends and form the light beam of special-purpose.
Following with reference to Fig. 2 A to Fig. 2 L, the manufacture method according to the radiating component of the solid luminous device of second embodiment of the present invention encapsulation 1 is described.
At first, shown in Fig. 2 A, prepare a metal substrate 10, wherein, will be formed with a plurality of cupule 11 on the surface of metal substrate 10, and this surface is imposed surface finish processing.
Then, shown in Fig. 2 B, a metal welding bed of material 12 is electroplated on another surface of this metal substrate, preferably, the metal welding bed of material 12 is constituted by copper, silver or gold.
Then, shown in Fig. 2 C, a dielectric ink 13 is fills up among this a plurality of cupule 11, the upper limb of dielectric ink 13 and the upper limb of each cupule 11 are trimmed in fact.
Then; shown in Fig. 2 D; carry out anodized, in order to formation one metal oxide layer 14 on the surface of the metal substrate except the inner surface of each cupule 11 10, and the inner surface of each cupule 11 then avoids forming metal oxide layer 14 by dielectric ink 13 protections.Preferably, metal oxide layer 14 is alumina layer (aluminium oxide).
Then, shown in Fig. 2 E, remove this dielectric ink 13.
Then, shown in Fig. 2 F, electroplate an electrode layer 15 on the inner surface of metal oxide layer 14 and each cupule 11, preferably, electrode layer 15 is to constitute as reflective metals such as silver, gold or aluminium.
Then, shown in Fig. 2 G, remove the inboard of the upper limb of each cupule 11 with the drill bit 17 of rotation, also remove the metal oxide layer 14 and the electrode layer 15 of going up the part in the upper limb outside of each cupule 11 simultaneously, thereby electrode layer 15 can be distinguished into the electrode 15b on the inner surface that is positioned at each cupule 11, and be positioned at another electrode 15a on the outer surface of each cupule.
Then, shown in Fig. 2 H, the electrode that at least one led chip 20 is installed and is connected to another electrode of at least one led chip 20 with a routing bonding method another electrode 15a on the outer surface of each cupule to the electrode 15b of the bottom side of the inner surface of each cupule 11.
Then, shown in Fig. 2 I, the cooling fluid 30 of filling an electric insulation to a plurality of cupule 11, thereby a upper limb of cooling fluid 30 and a upper limb of each cupule 11 are trimmed in fact.Preferably, cooling fluid 30 is fluids of electric insulations such as pure water, liquid silicon keto resin.
Then, shown in Fig. 2 J, a glue material 41 is coated on the periphery of bottom of outer surface of each cupule 11, preferably, glue material 41 is for being subjected to the glue material of ultraviolet light photopolymerization.
Then, shown in Fig. 2 K, use a transparent cap 40 to cover each cupule 11, blended rubber material 41 and make the preceding periphery of transparent cap 40 and the periphery of the bottom of the outer surface of each cupule 11 connects airtight together, wherein, the outer surface of the inner surface of transparent cap 40 and cupule 11 is the state of closely cooperating.
At last, shown in Fig. 2 L, cut this metal substrate 10, to form this light-emitting device encapsulation 1.
The above, only in order to be used for convenient explanation preferred embodiment of the present invention, and be not with narrow sense of the present invention be limited to this preferred embodiment, for example, as the solid luminous device of array encapsulation 1 (Fig. 3), the filling cooling fluid 30 of electric insulation arbitrarily wherein.
Moreover the above is only in order to be used for convenient explanation preferred embodiment of the present invention, and be not with narrow sense of the present invention be limited to this preferred embodiment, for example, as laser diode (LD) encapsulation 1 ' (Fig. 4), the filling cooling fluid 30 of electric insulation arbitrarily wherein.And when radiating component of the present invention is applied to the encapsulation 1 ' of LD, its radiating effect will be more remarkable, no matter because low-power or high-power LD, compared to LED, it is the device that is subject to the temperature rise influence.And radiating component of the present invention will make the laser diode cooling of operation, and then improve the magnification ratio performance, reliability, and prior of optics, promptly improve wavelength stability in some cases.
Also have, the above only in order to be used for convenient explanation preferred embodiment of the present invention, and is not that narrow sense of the present invention ground is limited to this preferred embodiment, for example, encapsulates as Organic Light Emitting Diode (OLED), wherein the filling cooling fluid 30 of electric insulation arbitrarily.
The above, only in order to be used for convenient explanation preferred embodiment of the present invention, and be not with narrow sense of the present invention be limited to this preferred embodiment.All according to any change that the present invention did, all belong to the scope of patent protection of the present invention.
Claims (12)
1. the radiating component of light-emitting device encapsulation is characterized in that comprising:
One metal substrate, have a upper surface and a lower surface, upper surface forms a cupule, be formed with a metal welding bed of material on the lower surface with respect to upper surface, wherein cupule has an inner surface and an outer surface, all be formed with an electrode layer on the inner surface with cupule and electrode layer has two electrodes that separate and be formed with on the outer surface on a metal oxide layer, the metal oxide layer, an electrode is formed on the inner surface of cupule, and another electrode is formed on the outer surface of cupule;
The cooling fluid of one electric insulation is filled among the cupule, and is limited to by the inner surface of cupule; And
One transparent cap connects airtight in metal substrate, and this transparent cap has an inner surface, and it forms the convex surface towards light-emitting device.
2. the radiating component of light-emitting device encapsulation as claimed in claim 1, it is characterized in that: metal substrate is made of a Heat Conduction Material.
3. the radiating component of light-emitting device encapsulation as claimed in claim 2, it is characterized in that: metal oxide layer is made of the oxide of this Heat Conduction Material.
4. the radiating component of light-emitting device encapsulation as claimed in claim 2 is characterized in that: also comprise a printed circuit board (PCB), wherein
Printed circuit board (PCB) is made of Heat Conduction Material at least;
Be formed with at least one electrode on one surface of printed circuit board (PCB); And
By with the electrode engagement on this printed circuit surface to this metal welding bed of material, and with another electrode engagement on this printed circuit surface another electrode, to realize being electrically connected of light-emitting device encapsulation and printed circuit board (PCB) to the outer surface of this cupule bottom.
5. the radiating component of light-emitting device encapsulation as claimed in claim 1, it is characterized in that: electrode layer is made of a reflective metal.
6. the radiating component of light-emitting device encapsulation as claimed in claim 1, it is characterized in that: transparent cap has an outer surface, and this outer surface forms another convex surface relative with the convex surface of its inner surface.
7. the manufacture method of the radiating component of light-emitting device encapsulation is characterized in that comprising following steps:
One preparation process prepares a metal substrate, and wherein, this metal substrate has upper surface, also is formed with a plurality of cupules on it, and this upper surface is handled through a surface finish;
One plating step is electroplated a metal welding bed of material on the lower surface of this metal substrate;
One fills black step, and a dielectric ink is fills up among a plurality of cupules, and the upper limb of this dielectric ink and the upper limb of each cupule are trimmed in fact;
One anodic oxidation step forms a metal oxide layer on the upper surface of the metal substrate except the inner surface of each cupule, and the inner surface of each cupule then avoids forming metal oxide layer by this dielectric ink protection;
One ink removing step is removed this dielectric ink;
One plating step is electroplated an electrode layer on the inner surface of this metal oxide layer and each cupule;
One electrode separation step, remove the inboard of the upper limb of each cupule, also remove simultaneously each cupule the upper limb outside go up local metal oxide layer and electrode layer, electrode layer is distinguished into the electrode on the inner surface that is positioned at each cupule and is positioned at another electrode on the outer surface of each cupule;
One installation steps are mounted to an electrode of light-emitting device on the electrode of bottom side of inner surface of each cupule, and another electrode of this light-emitting device are connected to another electrode on the outer surface of each cupule with a routing bonding method;
One filling step is filled to the cooling fluid of an electric insulation among a plurality of cupules, and a upper limb of this cooling fluid and a upper limb of each cupule are trimmed in fact;
One application step is coated on a glue material on one periphery of bottom of outer surface of each cupule;
One covers step, covers each cupule with a transparent cap, and the periphery of bottom of the outer surface of the preceding periphery of this transparent cap and each cupule is connected airtight together; And
One cutting step is cut this metal substrate, forms this light-emitting device encapsulation.
8. the manufacture method of the radiating component of light-emitting device encapsulation as claimed in claim 7, it is characterized in that: among preparation process, metal substrate is made of a Heat Conduction Material.
9. the manufacture method of the radiating component of light-emitting device encapsulation as claimed in claim 8, it is characterized in that: among the anodic oxidation step, metal oxide layer is made of the oxide of this Heat Conduction Material.
10. the manufacture method of the radiating component of light-emitting device encapsulation as claimed in claim 8 is characterized in that: also comprise following steps:
One installation steps are mounted to the light-emitting device encapsulation on one printed circuit board (PCB), wherein,
Printed circuit board (PCB) is made of Heat Conduction Material at least;
Be formed with at least one electrode on one surface of printed circuit board (PCB); And
To this metal welding bed of material, and with another at least one electrode engagement this another electrode, and the light-emitting device encapsulation is electrically connected to printed circuit board (PCB) this at least one electrode engagement to the bottom of the outer surface of each cupule.
11. the manufacture method of the radiating component of light-emitting device encapsulation as claimed in claim 7, it is characterized in that: among the plating step on the inner surface of metal oxide layer and each cupule, electrode layer is made of a reflective metal at the electroplated electrode layer.
12. the manufacture method of the radiating component of light-emitting device encapsulation as claimed in claim 7, it is characterized in that: among the covering step, the inner surface that contacts with described cooling fluid of transparent cap forms a convex surface, and an outer surface of the cap that this is transparent then forms another convex surface relative with this convex surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021071403A CN1224098C (en) | 2002-03-11 | 2002-03-11 | Solid luminous device packaged radiating member and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021071403A CN1224098C (en) | 2002-03-11 | 2002-03-11 | Solid luminous device packaged radiating member and its making method |
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| Publication Number | Publication Date |
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| CN1444271A CN1444271A (en) | 2003-09-24 |
| CN1224098C true CN1224098C (en) | 2005-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021071403A Expired - Fee Related CN1224098C (en) | 2002-03-11 | 2002-03-11 | Solid luminous device packaged radiating member and its making method |
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| CN (1) | CN1224098C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888740A (en) * | 2010-06-02 | 2010-11-17 | 苏州科医世凯半导体技术有限责任公司 | Convex metal printed circuit board and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1293524C (en) * | 2004-09-16 | 2007-01-03 | 新灯源科技有限公司 | Luminescent device with high efficiency heat radiation structure |
| TWI462236B (en) * | 2005-03-18 | 2014-11-21 | 同和電子科技有限公司 | Sub-mounting sheet and manufacturing method thereof |
| US7855449B2 (en) * | 2005-04-27 | 2010-12-21 | Koninklijke Philips Electronics N.V. | Cooling device for a light-emitting semiconductor device and a method of manufacturing such a cooling device |
| CN100391018C (en) * | 2005-06-07 | 2008-05-28 | 吕大明 | LED device and packing method thereof |
| CN101005108B (en) * | 2006-01-16 | 2011-07-13 | 深圳大学 | Power type light emitting diode heat sink and its method |
| WO2008104096A1 (en) * | 2007-02-28 | 2008-09-04 | Tsungwen Chan | A signal surface mounted type light emitting diode and fabricating method thereof |
| CN101625079B (en) * | 2009-03-05 | 2012-01-25 | 华桂潮 | Hollow liquid-cooling LED lamp |
| CN113851563B (en) * | 2021-08-26 | 2023-11-21 | 江苏宜兴德融科技有限公司 | Thin film type semiconductor chip structure and photoelectric device using same |
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2002
- 2002-03-11 CN CNB021071403A patent/CN1224098C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888740A (en) * | 2010-06-02 | 2010-11-17 | 苏州科医世凯半导体技术有限责任公司 | Convex metal printed circuit board and manufacturing method thereof |
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| CN1444271A (en) | 2003-09-24 |
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