CN202120978U - Co-firing ceramic substrate having built-in heat radiation portion and light emitting diode comprising same - Google Patents
Co-firing ceramic substrate having built-in heat radiation portion and light emitting diode comprising same Download PDFInfo
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- CN202120978U CN202120978U CN 201120119616 CN201120119616U CN202120978U CN 202120978 U CN202120978 U CN 202120978U CN 201120119616 CN201120119616 CN 201120119616 CN 201120119616 U CN201120119616 U CN 201120119616U CN 202120978 U CN202120978 U CN 202120978U
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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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Abstract
The utility model relates to a co-firing ceramic substrate having built-in heat radiation portions and a light emitting diode comprising the same. The co-firing ceramic substrate is arranged in such a manner that a plurality of recessed portions are arranged on the substrate to respectively form built-in heat radiation portions, the substrate is shaped by sintering, one side surface of the substrate is provided with a medium layer, a predetermined pattern is formed on the medium layer via exposure lithography, a layer of circuit is arranged on the medium layer so a light emitting diode can be fixedly arranged on the circuit, some penetrating built-in heat radiation portions can be selected as conductive connection columns, and the other built-in heat radiation portions can be selected as heat radiation portions for increasing thermal conductivity, thereby improving heat radiation efficiency of the substrate. With the sintering, the exposure lithography and electroplating technology adopted, the co-firing ceramic substrate substantially improves precision of the circuit layout, increases elasticity and variability of the circuit design, and helps miniaturization of products.
Description
[technical field]
This is novel to be about a kind of co-fired ceramic substrate, especially a kind of light-emitting diode of building the co-fired ceramic substrate of radiating part in having and having this substrate.
[background technology]
Light-emitting diode (LED) is quite universal at present; Not only volume is little, the reaction time is fast, long service life, brightness are difficult for decay and vibration resistance; Therefore the LED element replaces gradually and comprises display backlight light source, camera flashlamp, traffic sign, headstock and tail-light, even progresses into general lighting market.Yet, along with the application development of high-capacity LED lighting apparatus, the high heat problem that big electric current is followed, general absolutely not at present printed circuit board material or semiconductor substrate can bear, so become many subjects under discussion of being attracted attention.For bearing the great amount of heat energy that high-brightness LED is sent out; The resistant to elevated temperatures ceramic substrate of industry more options is as the bearing part of LED crystal grain; For substrate is combined with circuit in order to activation LED crystal grain, generally can select low temperature co-fired multi-layer ceramics (LTCC) or high temperature co-firing multi-layer ceramics (HTCC) substrate.Because so-called co-firing technology, exactly with circuit or in bury thermal column and ceramic substrate co-sintered, no matter be above high temperature of thousand degree or the following low-temperature sintering of thousand degree therefore, can process ceramic substrate with radiator structure and circuit.
The technology of a kind of LTCC is earlier for example inorganic alumina powder and about 30%～50% glass material to be added organic binder bond, makes it mix the slurry that becomes the mud shape; Then utilize scraper to scrape slabbing to slurry; Via one dry run the sheet slurry is formed a slice again and give birth to embryo, get out via in giving birth on the embryo then, again respectively at injecting the filling perforation of metal charge material in the via; And in giving birth to embryo surface printing metallic circuit; Be positioned over sinter molding in 850～900 ℃ the sintering furnace at last, build radiating part in the slurry that is injected in the via forms, with as transmitting energy or signal, reaching the usefulness of heat conduction.The HTCC manufacture process is very similar with LTCC; Main discrepancy does not add glass material at ceramic powders; So on technology, must harden into living embryo, bore via then equally, and carry out filling perforation, and print metallic circuit with screen printing technology with the environmental drying of 1300～1600 ℃ of high temperature.
Therefore, co-fired ceramic substrate can be in ceramic heat-dissipating substrate buried line or in bury thermal column; But in sintering process; Since ceramic material itself can't be definitely evenly, heating status also can't be definitely evenly; Therefore batch a large amount of production operation the time, even with the multi-disc co-fired ceramic substrate of a collection of manufacturing, still can be different with shrinkage rates because of expanding; Cause size between each substrate to differ, connect up or in bury problems such as thermal column progression tolerance each other is excessive; Order not accurate in contraposition form in the circuit junction of substrate surface, and in the mode of outer surface of substrate printed wiring, is subject to co-firing technology equally and makes the precision of circuit on thickness and thickness direction all be restricted; The problem that this kind precision is not good seriously obstructs the microminiaturized trend of circuit element.
Therefore; If can guarantee circuit that LTCC or HTCC ceramic heat-dissipating substrate comprised with in bury the isostructural progression tolerance of thermal column Be Controlled more accurately in the scope; The element that lets on the one hand all be arranged on this substrate can more precisely contraposition; Remove and to promote the product yield, the opportunity of further microminiaturization also will be provided; Aspect in addition, if during layout circuit, the precisely position of control circuit and thickness; Not only increase layout elasticity, more can further utilize metallic circuit itself, promote the monolith substrate capacity of heat transmission as the heat conduction approach; Thereby the demand that adapts to high heater elements such as high-brightness LED is for example calmly avoided a large amount of heat energy accumulations, and interest concessions are with the high-brightness LED of this kind substrate; Higher radiating efficiency can be arranged, become solution with excellent product competitiveness.
[novel content]
One of this novel purpose be to provide a kind of circuit layout precision good be formed with in build the co-fired ceramic substrate of radiating part, use promoting the assembling yield.
This novel another purpose be to provide a kind of radiating efficiency excellent be formed with in build the co-fired ceramic substrate of radiating part.
This novel purpose again is to provide a kind of circuit layout to have the co-fired ceramic substrate of building radiating part in being formed with of high flexibility, uses the microminiaturized trend trend of adaptive circuit element.
This novel another purpose be to provide a kind of can batch manufacturing be formed with in build the co-fired ceramic substrate of radiating part, let the technology can automation, not only the element quality is easy to management and control, product also has more the market competitiveness.
This novel another purpose again is the light-emitting diode that provides a kind of radiating efficiency excellent, uses and guarantees in the use, and the luminous intensity of light-emitting diode is deterioration easily not, and good luminous power is provided; And prolongation whole service life.
This novel again again a purpose be to provide a kind of circuit layout precisely, make the further light-emitting diode of microminiaturization of product.
Build the co-fired ceramic substrate of radiating part in this novel a kind of tool that discloses; It is the circuit element that supplies to be provided with at least one heating; This co-fired ceramic substrate comprises: a slice has two insulating surfaces, wherein layout has internal wiring, reaches the base material that forms at least one holding part; This holding part is by in aforementioned two surfaces, and the surface that supplies this heating circuit element is set is recessed to form; At least one be filled in aforementioned holding part in build radiating part; At least be formed at the lip-deep intermediary layer of this heating circuit element of confession setting of building on the radiating part in aforementioned and being exposed to this base material; And circuit that is formed on this intermediary layer, supplies the aforementioned circuit element to be provided with.Described co-fired ceramic substrate, wherein aforementioned depression are perforation that runs through these two surfaces, and should in build radiating part and comprise that at least one connects post.
Described co-fired ceramic substrate, wherein this circuit comprises and is formed at aforementioned at least one post that connects to the conductive layer on should circuit end portion.
Described co-fired ceramic substrate, wherein this circuit more comprises a plurality of connection pads that are formed on this conductive layer, supply above-mentioned circuit element to be provided with.
Described co-fired ceramic substrate, wherein this intermediary layer is to be selected from the set that is constituted with titanium, titanium alloy, silver, nickel, nickel alloy, nichrome.
Described co-fired ceramic substrate, wherein this base material is multilayer aluminium oxide (Al
2O
3), aluminium nitride (AlN) or its mixture.
Described co-fired ceramic substrate is characterized in that, building radiating part in wherein being somebody's turn to do is to be selected from the set that aluminium oxide, aluminium nitride, silver, copper, aluminium, carbon, stone mill, diamond, silicon constitute.
Further use aforesaid substrate, a kind of light-emitting diode of this novel announcement, comprising: at least one has the LED crystal particle of two activation ends; Reach the co-fired ceramic substrate of building radiating part in a slice tool; Comprise: a slice has two insulating surfaces, wherein layout has internal wiring, reaches the base material that forms at least one holding part; This holding part is by in aforementioned two surfaces, and the surface that supplies this heating circuit element is set is recessed to form; At least one be filled in aforementioned holding part in build radiating part; At least be formed at the lip-deep intermediary layer of this heating circuit element of confession setting of building on the radiating part in aforementioned and being exposed to this base material; And circuit that is formed on this intermediary layer, supplies the aforementioned circuit element to be provided with.
Described light-emitting diode, wherein this light-emitting diode more comprises a light transmission protective layer that covers this LED crystal particle.
Described light-emitting diode, wherein aforementioned depression are perforation that runs through these two surfaces, and should in build radiating part comprise at least one confession connect this LED crystal particle an activation end connect post.
Since interior build radiating part and ceramic material co-sintered after; Build radiating part in letting and be exposed to the side that ceramic base material supplies to be provided with this heating circuit element, therefore when this side shaping one deck intermediary layer, can be covered in an end of building radiating part in all at base material; And utilization exposure micro-photographing process; Can intermediary layer be configured as the predetermining circuit layout patterns, and on the formed layout patterns of intermediary layer, thicken subsequently, reshape weld pad (pad) with for example plating mode.Relatively; In to build in the radiating part if part is arranged be simultaneously will be as the usefulness that connects; Then will be connected, or directly during fabrication the holding part of depression formed perforation in the bottom surface, build the both sides that radiating part directly runs through the end face of base material to bottom surface in making with the circuit that buries in the script substrate; Be responsible for connecting the connect post of base material both sides with divide at this point as the circuit some, and the heating column that only supplies to promote the substrate capacity of heat transmission.
So; Can let on the one hand co-fired ceramic substrate build radiating part and promote radiating efficiency by interior; Aspect in addition; The formed circuit layout of back processing procedure also thoroughly solves the problem of non-uniform of expanding with heat and contract with cold of common burning porcelain, makes that the setting of circuit and crystal grain etc. is more accurate, and it is feasible to let the circuit element microminiaturization become.Especially the precision of thickness aspect and variability all improve; More can be by the auxiliary heat conduction approach of metal material conduct of circuit itself; The heat that lets heater element such as LED crystal particle for example send out more can see through contact and quicken diversion; Guarantee the operating environment temperature unlikely too high, keep good luminous state, more increase product useful life and value of the product, reach all above-mentioned purposes.
[description of drawings]
Fig. 1 is a sketch map of building the living embryo that the co-fired ceramic substrate of radiating part makes earlier in the tool of this case first preferred embodiment;
Fig. 2 is that the side of the living embryo of Fig. 1 is shown profile;
Fig. 3 is that the living embryo sinter molding of Fig. 1 is that the side that substrate and base material are formed with the perforation that runs through two surfaces is shown profile;
Fig. 4 is that the side of building radiating part in Fig. 3 filling perforation in perforation, the formation is shown profile;
Fig. 5 be Fig. 4 in base material and in build surperficial sputter one deck intermediary layer of radiating part side show profile;
Fig. 6 is that Fig. 5 is provided with one deck and sacrifices macromolecule layer and show profile with the side that the light shield shaded portions of a predetermined circuit patterns is sacrificed macromolecule layer in the intermediary layer surface;
Fig. 7 is that the remaining non-predetermined circuit patterns side of still covering on the subregion of intermediary layer partly corresponding to light shield of the sacrifice macromolecule layer of Fig. 6 is shown profile;
Fig. 8 is that Fig. 7 electroplates one deck conductive layer on the intermediary layer area exposed side is shown profile;
Fig. 9 is that the side that the sacrifice macromolecule layer of Fig. 8 is removed and etching removes the intermediary layer of non-predetermined circuit patterns part is shown profile;
Figure 10 is the diagrammatic sketch of bowing that circuit that Fig. 9 forms is formed with conducting end;
Figure 11 is that the side that supplies LED crystal particle to install and insert together a mould on the not separated as yet base material of Figure 10 is shown profile;
Figure 12 breaks off between base material and the base material of Figure 11 separating the side that forms light-emitting diode and showing profile each other; And
Figure 13 is that the side of this case second preferred embodiment is shown profile, be that explanation has a nonpenerative holding part, and the left and right sides is formed with tip electrodes respectively.
[main element symbol description]
1 gives birth to embryo 11 vias
2 substrates 21,21 ' base material
214 perforation of 213 insulating surfaces
20, build radiating part 201 in 20 ' and connect post
202 heating columns 22,22 ' intermediary layer
31 sacrifice macromolecule layer 32 light shields
231 conductive layers, 232 connection pads
23,23 ' circuit, 233,234 conducting end
25 ' holding part, 27 ' tip electrodes
4,4 ' LED crystal particle, 5 moulds
6 light transmission protective layers
[embodiment]
About this novel aforementioned and other technology contents, characteristics and effect, in the detailed description of the preferred embodiment of following conjunction with figs., can clearly appear.
This is novel builds the co-fired ceramic substrate of radiating part and has the manufacture process of the light-emitting diode of this substrate in having, and will progressively be described among Fig. 1 to Figure 12, and example is interpreted as with the mode of batch operation and makes in this example; Certainly, be familiar with other modes that present technique field person also can be easily change part steps with identical effect and substitute, all do not hinder in the enforcement of this case technical field.
Like Fig. 1 and shown in Figure 2, at first with aluminium oxide (Al
2O
3) or aluminium nitride (AlN) add organic binder bond, make it mix the slurry that becomes the mud shape, scrape slabbing to slurry with scraper again; Via one dry run the sheet slurry is formed a slice again and give birth to embryo 1, and, if process with LTCC; Then must in slurry, add about 30%～50% glass material in addition, sinter molding in 850～900 ℃ sintering furnace again is if process with HTCC; Then need not add glass material, but essential will be with 1300～1600 ℃ of sinter moldings in sintering furnace, then as shown in Figure 3; Get out a plurality of vias 11 that are through to another side in giving birth to embryo 1 surface, and the metal charge material that injects founding in via 11 carries out filling perforation.
Then be positioned over sinter molding in the sintering furnace; Promptly form a substrate as shown in Figure 42; And substrate 2 precut each other a plurality of base materials 21 that link; And via 11 shown in Figure 3 promptly forms a plurality of perforation 214 that run through two insulating surfaces 213 of base material 21, the metal charge material of founding then in perforation 214 formation build radiating part 20 in a plurality of, building radiating part 20 in wherein is to be selected from the set that aluminium oxide, aluminium nitride, silver, copper, aluminium, carbon, stone mill, diamond, silicon constitute.
In this example, for reaching different effectiveness, in build radiating part 20 and more divide into two thicker post 201 and much thinner heating columns 202 of connecting.Then in the lump with reference to as shown in Figure 5; Insulating surface 213 sputter one decks in base material 21 upper and lower both sides are selected from the intermediary layer 22 that is constituted with titanium, titanium alloy, silver, nickel, nickel alloy, nichrome; Therefore build the both ends of radiating part 20 in intermediary layer 22 will cover and be formed at; And be exposed on the insulating surface 213, build radiating part 20 in making and buried.
As shown in Figure 6 subsequently; One deck is set on intermediary layer 22 surfaces sacrifices macromolecule layer 31; Sacrifice macromolecule layer 31 with light shield 32 shaded portions of a predetermined circuit patterns again; Next with for example ultraviolet irradiation, make not to be changed its phase structure that flushing is immediately developed by sacrifice macromolecule layer 31 regional exposures that light shield 32 covered; Make the unaltered part of phase structure be removed, form only remaining non-predetermined circuit patterns sacrifice macromolecule layer 31 partly as shown in Figure 7 and still cover on the subregion of intermediary layer 22 corresponding to light shield 32.
Then as shown in Figure 8, on intermediary layer 22 area exposed, electroplate one deck by the conductive layer 231 that copper constituted, the thickness of predetermined pattern part is increased, by this, and thickness that on the one hand can control circuit, the aspect can promote heat transfer efficiency in the lump in addition.The planning of conductive layer 231 surface is as the appropriate locations of connection pad 232, with for example gold and nickel and the electronic component welding of re-plating one deck; In the lump with reference to shown in Figure 9; Remove remaining sacrifice macromolecule layer 31; Make the intermediary layer 22 of crested in electroplating process partly expose, then etching removes the residual intermediary layer 22 of non-predetermined circuit patterns part, and connection pad 232 is only attenuation a little then; But still possess predetermined pattern, can't cause influence to electric property.
The circuit 23 that conductive layer 231 and connection pad 232 are constituted; In the lump with reference to shown in figure 10; Wherein circuit 23 is formed with two conducting end 233,234; In case the activation end of LED crystal particle is soldered on it, can obtain electric energy respectively through connecting post 201, intermediary layer 22 and connection pad 232 from the outside.Aspect in addition; With the electrical heating column 202 independently of entire circuit 23, also will be imbedded in substrate inside, use the heat transfer efficiency that promotes substrate; Avoid being accumulated on the substrate, cause the temperature of operating environment significantly to promote from the heat energy that heater elements such as LED crystal particle are sent out.By heat conduction expeditiously, not only can guarantee the luminous intensity of light-emitting diode, also can significantly prolong the life-span of LED crystal particle, let the light-emitting diode performance boost of adopting this kind substrate.
With reference to shown in figure 11; At this moment, LED crystal particle 4 is mounted to respectively on the connection pad 232 of not separated as yet a plurality of base materials 21, and not separated as yet many base materials 21 are inserted in the mould 5 jointly; Then be formed with the reservation shape die cavity of a plurality of respectively corresponding each base material 21 in the mould 5; By in die cavity, injecting the transparent material resin, with mould 5 removals, promptly can on each base material 21, form the light transmission protective layer 6 of the encapsulation of a reservation shape behind the process certain hour; The complete LED crystal particle 4 that covers of one side, and can adjust the bright dipping distribution simultaneously as optical lens.At last 21 of base material 21 and base materials are broken off each other and separating, process light-emitting diode shown in figure 12.
Certainly; As be familiar with present technique field person and can understand easily, be not that all radiating parts all must be designed to punch format, and the electrode that connects the activation end also is not limited to and adopt the above-mentioned post that connects; Shown in figure 13; For deriving the high heat that high-brightness LED crystal grain 4 ' was for example sent out in the luminous while, also can in the base material 21 ' of co-fired ceramic substrate, be recessed to form a holding part 25 ' by end face in advance; And for example utilize the good material of heat conduction such as graphite to insert this holding part 25 ', build radiating part 20 ' thereby form in one.Since build radiating part 20 ' material in this kind and no matter be insert in advance and with give birth to embryo and burn altogether; Or behind the ceramic substrate sintering, insert, all there is its limitation on the surface, in build radiating part 20 ' itself end face and in build the position, ceramic base material 21 ' boundary on radiating part 20 ' and next door; All difficulty asks it smooth fully; If be shaped, even then holding part 25 ' is merely the size of diameter 5 μ m, the out-of-flatness that all possibly produce 2 to 3 μ m with burning mode altogether.Therefore, crystal grain is installed directly above radiating part its difficulty is arranged.
But in conduction process, the thermal resistance that explodes will be brought in a little gap, significantly influence heat conduction usefulness.So for asking good heat-conducting effect; Still must let LED crystal grain 4 ' can directly smoothly fit tightly the top face of in this kind, building radiating part; According to the manufacture of this case, can base material 21 ' and in build radiating part 20 ' end face jointly via for example with the elargol of the direct wire mark 10 μ m thickness of conducting resinl, form the predetermined pattern that exposes intermediary layer 22 ' as Seed Layer; And thicken through for example electroplating; Build radiating part 20 ' top in making and also be formed with thickness and reach the for example circuit 23 ' of 100 μ m thickness, utilize technology such as polishing at last, will in build radiating part 20 ' top circuit 23 ' and next door base material 21 ' above circuit 23 ' throwing to flushing.Overcome issuable for example 50 μ m thickness or the differences in height of co-fired ceramic substrate by this, thereby LED crystal grain 4 ' is built on the circuit 23 ' of radiating part 20 ' end face in can installing smoothly and well be attached to.
Two activation ends of the crystal grain of LED in the present embodiment 4 ' are formed in the crystal grain top; Therefore can be from two activation ends respectively routing connect to for example forming in base material 21 ' lateral ends electrode 27 '; Be shaped with resin-encapsulated again, process a complete light-emitting diode.Certainly, no matter be the activation end be formed on crystal grain end face, bottom surface or end face bottom surface each one, can on the one hand electric energy be imported by direct different modes such as welding or routing, in addition the aspect keep crystal grain with in build heat-conducting part good heat conductive combine.
Therefore; Can see through intermediary layer according to the co-fired ceramic substrate of building radiating part in the above tool that discloses builds radiating part in making and firmly combines with circuit; And as the conduction and the best media of heat conduction, and, make the precision of circuit layout significantly promote by the design of sintering postforming intermediary layer and circuit; Not only let the yield of subsequent installation operation improve; The elasticity of configuration design promotes, and also makes the microminiaturization of circuit element become possibility, and thoroughly solving the substrate that LTCC and HTCC in the past process has circuit precision and the relatively poor problem of progression tolerance.
And can make circuit itself have thermal conductive resin concurrently by the thickness of plain conductor in the control circuit, the heating column in substrate be buried in collocation; Let substrate integral body have excellent radiating efficiency, by this, can the thermal resistance of script aluminum oxide substrate possibly be promoted 15 degree Celsius by every watt; Significantly be reduced to every watt 5 the degree below; When letting utilization high brightness LED crystal grain, the heat energy of being sent out is derived rapidly, and the operating environment that keeps LED crystal particle is near room temperature; Guarantee luminous intensity, increase the service life; More increase value of the product, thereby promote the competitiveness of light-emitting diode on market of utilization this case substrate, effectively reach these all novel above-mentioned purposes really.
The above; Be merely this novel preferred embodiment; When the scope that can not limit this novel enforcement with this, promptly the simple equivalent done of novel claims of Fan Yiben and novel description changes and modifies, and all should still belong in the scope that this novel patent contains.
Claims (10)
1. building the co-fired ceramic substrate of radiating part in the tool, is the circuit element that supplies to be provided with at least one heating, it is characterized in that this co-fired ceramic substrate comprises:
A slice has two insulating surfaces, wherein layout has internal wiring, reaches the base material that forms at least one holding part, and this holding part is by in aforementioned two surfaces, and the surface that supplies this heating circuit element is set is recessed to form;
At least one be filled in aforementioned holding part in build radiating part;
At least be formed at the lip-deep intermediary layer of this heating circuit element of confession setting of building on the radiating part in aforementioned and being exposed to this base material; And
A circuit that is formed on this intermediary layer, supplies the aforementioned circuit element to be provided with.
2. co-fired ceramic substrate as claimed in claim 1 is characterized in that, wherein aforementioned depression is a perforation that runs through these two surfaces, and should in build radiating part and comprise that at least one connects post.
3. co-fired ceramic substrate as claimed in claim 2 is characterized in that, wherein this circuit comprises and is formed at aforementioned at least one post that connects to the conductive layer on should circuit end portion.
4. co-fired ceramic substrate as claimed in claim 3 is characterized in that, wherein this circuit more comprises a plurality of connection pads that are formed on this conductive layer, supply above-mentioned circuit element to be provided with.
5. like claim 1,2,3 or 4 described co-fired ceramic substrates, it is characterized in that wherein this intermediary layer is to be selected from the set that is constituted with titanium, titanium alloy, silver, nickel, nickel alloy, nichrome.
6. like claim 1,2,3 or 4 described co-fired ceramic substrates, it is characterized in that wherein this base material is multilayer aluminium oxide (Al
2O
3), aluminium nitride (AlN).
7. like claim 1,2,3 or 4 described co-fired ceramic substrates, it is characterized in that building radiating part in wherein being somebody's turn to do is to be selected from the set that aluminium oxide, aluminium nitride, silver, copper, aluminium, carbon, stone mill, diamond, silicon constitute.
8. light-emitting diode is characterized in that comprising:
At least one has the LED crystal particle of two activation ends; And
Build the co-fired ceramic substrate of radiating part in a slice tool, comprising:
A slice has two insulating surfaces, wherein layout has internal wiring, reaches the base material that forms at least one holding part, and this holding part is by in aforementioned two surfaces, and the surface that supplies this heating circuit element is set is recessed to form;
At least one be filled in aforementioned holding part in build radiating part;
At least be formed at the lip-deep intermediary layer of this heating circuit element of confession setting of building on the radiating part in aforementioned and being exposed to this base material; And
A circuit that is formed on this intermediary layer, supplies the aforementioned circuit element to be provided with.
9. light-emitting diode as claimed in claim 8 is characterized in that, wherein this light-emitting diode more comprises a light transmission protective layer that covers this LED crystal particle.
10. light-emitting diode as claimed in claim 8 is characterized in that, wherein aforementioned depression is a perforation that runs through these two surfaces, and should in build radiating part comprise at least one confession connect this LED crystal particle an activation end connect post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120119616 CN202120978U (en) | 2011-04-21 | 2011-04-21 | Co-firing ceramic substrate having built-in heat radiation portion and light emitting diode comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120119616 CN202120978U (en) | 2011-04-21 | 2011-04-21 | Co-firing ceramic substrate having built-in heat radiation portion and light emitting diode comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120978U true CN202120978U (en) | 2012-01-18 |
Family
ID=45462019
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120119616 Expired - Fee Related CN202120978U (en) | 2011-04-21 | 2011-04-21 | Co-firing ceramic substrate having built-in heat radiation portion and light emitting diode comprising same |
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| Country | Link |
|---|---|
| CN (1) | CN202120978U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751419A (en) * | 2011-04-21 | 2012-10-24 | 瑷司柏电子股份有限公司 | Co-firing ceramic base plate with built-in heat radiating parts and light emitting diode with base plate |
| CN106024647A (en) * | 2016-06-14 | 2016-10-12 | 重庆切普电子技术有限公司 | Low-cost production technology of COB packaging devices |
-
2011
- 2011-04-21 CN CN 201120119616 patent/CN202120978U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751419A (en) * | 2011-04-21 | 2012-10-24 | 瑷司柏电子股份有限公司 | Co-firing ceramic base plate with built-in heat radiating parts and light emitting diode with base plate |
| CN106024647A (en) * | 2016-06-14 | 2016-10-12 | 重庆切普电子技术有限公司 | Low-cost production technology of COB packaging devices |
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