CN105206604B - A kind of nonpolarity LED chip structure - Google Patents
A kind of nonpolarity LED chip structure Download PDFInfo
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- CN105206604B CN105206604B CN201510672000.0A CN201510672000A CN105206604B CN 105206604 B CN105206604 B CN 105206604B CN 201510672000 A CN201510672000 A CN 201510672000A CN 105206604 B CN105206604 B CN 105206604B
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- led chip
- electric pole
- polar electric
- nonpolarity
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Abstract
The invention discloses a kind of nonpolarity LED chip structure, it includes：First LED chip, it which is provided with nonpolarity terminals and polar electric pole；Second LED chip, it which is provided with nonpolarity terminals and polar electric pole；3rd LED chip, which is provided with polar electric pole；First LED chip and the second LED chip are connected by the 3rd LED chip, polar electric pole in 3rd LED chip is electrically connected with the polar electric pole in the first LED chip and the second LED chip respectively, at least two conductive paths are formed, the nonpolarity terminals in the first LED chip and the second LED chip are electrically connected with any of which bar conductive path.Compared with prior art, without the polarity that should be noted chip when the present invention uses, energization can arbitrarily be accessed, improve production and the efficiency used, meanwhile the 3rd the quantity of LED chip can increase according to demand, so the nonpolarity LED chip structure has both voltage variable characteristic.
Description
Technical field
The present invention relates to technical field of semiconductor luminescence, more particularly to a kind of nonpolarity LED chip structure.
Background technology
Light emitting diode（Light-Emitting Diode, LED）It is a kind of semiconductor electronic component that can be luminous.It is this
Electronic component occurred early in 1962, can only send the feux rouges of low luminosity in early days, develop other monochromatic versions afterwards, when
The light that can be sent to today also brings up to suitable luminosity throughout visible ray, infrared ray and ultraviolet, luminosity.And purposes also by
At the beginning as indicator lamp, display board etc.；With the continuous progress of technology, light emitting diode be widely used in display,
Television set daylighting is decorated and illumination.
Light emitting diode (LED) is the change of energy band position rank when being combined using the electronics in semi-conducting material with hole,
With light emitting species, give off energy.The light that the light emitting diode commercially applied at present is sent is red, green, blue and white light
Etc. a variety of.Because light emitting diode has, small volume, long lifespan, driving voltage are low, power consumption is low, reaction rate is fast, vibration strength
The advantages that good, it can be applicable to banker's rate billboard, the brake lamp of automobile the 3rd, traffic sign, outdoor information billboard and normal lighting
Etc. in various application fields.Existing light emitting diode (LED) is mainly by diode chip for backlight unit, extraction electrode and transparent enclosure shell
Form.Because it possesses, long lifespan, small volume, caloric value are low, power consumption is few, reaction speed is fast, radiationless and monochromaticjty lights
Characteristic and advantage, be widely used in every product.
It is well known that the electrode of LED chip has point of positive-negative polarity, so can pay special attention to during the use of chip
The polarity of chip electrode, encapsulation and application end that can be follow-up to LED chip impact to the efficiency for producing and using.
Therefore, for above-mentioned technical problem, it is necessary to provide a kind of convenient nonpolarity regardless of both positive and negative polarity, installation replacing
LED chip structure.
The content of the invention
It is an object of the invention to provide a kind of nonpolarity LED chip structure.
To achieve these goals, technical scheme provided in an embodiment of the present invention is as follows：A kind of nonpolarity LED chip knot
Structure, the chip structure include：
First LED chip, it which is provided with nonpolarity terminals and polar electric pole；
Second LED chip, it which is provided with nonpolarity terminals and polar electric pole；
3rd LED chip, which is provided with polar electric pole；
First LED chip and second LED chip are connected by the 3rd LED chip, the 3rd LED core
Polar electric pole on piece is electrically connected with the polar electric pole in first LED chip and second LED chip respectively, is formed
At least two conductive paths, nonpolarity terminals and any of which bar in first LED chip and second LED chip
The conductive path is electrically connected with.
As a further improvement on the present invention, the polar electric pole includes the first polar electric pole and the second polar electric pole.
As a further improvement on the present invention, at least provided with one in first LED chip and second LED chip
Individual first polar electric pole and second polar electric pole, the nonpolarity terminals and first polar electric pole or
Second polar electric pole is electrically connected with.
As a further improvement on the present invention, in the 3rd LED chip at least provided with two groups electrically conduct described
One polar electric pole and second polar electric pole.
As a further improvement on the present invention, first polar electric pole and the described 3rd in first LED chip
First polar electric pole described in one group in LED chip and second polar electric pole are electrically connected with；In second LED chip
First polar electric pole and second polar electric pole described in another group on first polar electric pole and the 3rd LED chip
It is electrically connected with.
As a further improvement on the present invention, first polar electric pole and the described 3rd in first LED chip
Second polar electric pole in LED chip is electrically connected with, second polar electric pole in second LED chip with it is described
First polar electric pole in 3rd LED chip is electrically connected with；First polar electric pole in second LED chip with
Second polar electric pole in 3rd LED chip is electrically connected with, second polarity electricity in first LED chip
Pole is electrically connected with first polar electric pole in the 3rd LED chip.
As a further improvement on the present invention, first LED chip and second LED chip pass through multiple described
Three LED chips are connected.
As a further improvement on the present invention, first polar electric pole is different from the second polar electric pole shape.
As a further improvement on the present invention, the nonpolarity LED chip includes successively from bottom to top：
Substrate；
N type semiconductor layer on the substrate；
Luminescent layer on the n type semiconductor layer；
P type semiconductor layer on the luminescent layer；
First polar electric pole is arranged on the p type semiconductor layer, and is electrically connected with the p type semiconductor layer,
Second polar electric pole is arranged on the n type semiconductor layer, and is electrically connected with the n type semiconductor layer, the first LED
Nonpolarity terminals on chip, the second LED chip respectively with the n type semiconductor layer in the first LED chip, the second LED chip
It is electrically connected with.
As a further improvement on the present invention, the substrate of first LED chip, the substrate of the second LED chip, the 3rd
The substrate of LED chip is separated from each other setting or is a whole substrate.
The beneficial effects of the invention are as follows：A kind of simple nonpolarity LED chip structure, the nothing during the use of chip are provided
The polarity of chip is should be noted, can arbitrarily access energization, improves production and the efficiency used, meanwhile, the quantity of the 3rd LED chip can
To increase according to demand, so the nonpolarity LED chip structure has both voltage variable characteristic.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the cross-sectional view of single LEDs chip in first embodiment of the invention.
Fig. 2 is the structural representation of three LEDs chip-in series structures in first embodiment of the invention.
Fig. 3 is the cross-sectional view of three LEDs chip-in series structures in first embodiment of the invention.
Fig. 4 is by the cross-sectional view of plurality of LEDs chip-in series structure in second embodiment of the invention.
Fig. 5 is the structural representation of the cascaded structure that three LEDs chips share a substrate in third embodiment of the invention.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention
Scope.
In addition, the label repeated or sign may be used in various embodiments.These are repeated only for simple clear
The ground narration present invention, not representing between the different embodiments and/or structure discussed has any relevance.
Join shown in Fig. 1 to Fig. 3, in the first embodiment of the present invention, single LEDs chip is respectively from bottom to up：
Substrate 100, substrate can be sapphire, Si, SiC, GaN, ZnO etc.；
N type semiconductor layer 200, n type semiconductor layer can be N-type GaN etc.；
Luminescent layer 300, luminescent layer can be GaN, InGaN etc.；
P type semiconductor layer 400, p type semiconductor layer can be p-type GaN etc..
Join Fig. 3, the first LED chip 10 is respectively from bottom to up：Substrate 101；N type semiconductor layer 102；Luminescent layer 103；P
Type semiconductor layer 104；Transparency conducting layer（It is not shown）, the first polar electric pole 105 and the second pole are additionally provided with the first LED chip 10
Property electrode 106, the first polar electric pole 105 are arranged on p type semiconductor layer 104, and electrically conducted with p type semiconductor layer 104, and
Two polar electric poles 106 are arranged on n type semiconductor layer 102, and are electrically conducted with n type semiconductor layer 102.Especially, the first polarity
Electrode 105 is different from the shape of the second polar electric pole 106, wherein, the first polar electric pole 105 is circular electrode, the second polar electric pole
106 be square-shaped electrode.
The structure of second LED chip 20 is identical with the structure of the first LED chip 10, is respectively from bottom to up：Substrate 201；N
Type semiconductor layer 202；Luminescent layer 203；P type semiconductor layer 204；Transparency conducting layer（It is not shown）.Especially, the first LED chip
10 and second also include in addition to the first polar electric pole and the second polar electric pole in LED chip 20 being located at nothing on n type semiconductor layer
Polarity terminal 107 and 207, nonpolarity terminals 107 and 207 are electrically connected with n type semiconductor layer, nonpolarity terminals 107
It can be electrically connected with 207 with the first polar electric pole on each place chip or second polar electric pole, nonpolarity terminals 107
Can random external power supply both positive and negative polarity with 207.
3rd LED chip 30, it is respectively from bottom to up：Substrate 301；N type semiconductor layer 302；Luminescent layer 303；P-type is partly led
Body layer 304；Transparency conducting layer（It is not shown）, the first polar electric pole 305,308 sets and electrically conducted with p type semiconductor layer 304, and the
Two polar electric poles 306,309 electrically conduct with the n type semiconductor layer 302.
The first LED chip 10, the second LED chip 20 and the 3rd LED chip 30 are connected by routing mode, the 3rd LED
Chip 30 is between the first LED chip 10 and the second LED chip 20；In this embodiment, it is preferred that in the first LED chip
10 and second in LED chip 20 at least provided with first polar electric pole 305 and second polar electric pole 306, the 3rd
At least provided with two groups of first polar electric poles 305,308 to electrically conduct and the second polar electric pole 306,309 in LED chip.
Specifically, one group of first pole on the first polar electric pole 105 and the 3rd LED chip 30 in the first LED chip 10
The property polar electric pole 306 of electrode 305 and second is electrically connected with；The first polar electric pole 205 and the 3rd LED in second LED chip 20
Another group of the first polar electric pole 308 and the second polar electric pole 309 on chip are electrically connected with.Further, the first LED chip 10
On the first polar electric pole 105 be electrically connected with the second polar electric pole 306 in the 3rd LED chip, in the second LED chip 20
Second polar electric pole 206 is electrically connected with the first polar electric pole 305 in the 3rd LED chip 30；In second LED chip 20
The first polar electric pole 205 be electrically connected with the second polar electric pole 309 in the 3rd LED chip 30, in the first LED chip 10
Second polar electric pole 106 is electrically connected with the first polar electric pole 308 in the 3rd LED chip 30, thus, is formed two conductions and is led to
Road, nonpolarity terminals 107 and 207 in the first LED chip 10 and the second LED chip 20 can with it is conductive described in any of which bar
Path is electrically connected with, and after energization, only a wherein conductive path conduction, only two chips light, voltage 6V or so.
Join shown in Fig. 4, in the second embodiment of the present invention, the voltage of nonpolarity LED chip structure is adjustable.First LED
Can connect multiple 3rd LED chips 30 between the LED chip 20 of chip 10 and second, to improve the brightness of chip or input electricity
Pressure, often increasing the 3rd LED chip, voltage rises 3V or so, therefore, this nonpolarity LED chip structure has both voltage variable
Characteristic.
Join shown in Fig. 5, be the third embodiment of the present invention, unlike first embodiment and second embodiment, at this
In embodiment, the substrate of the first LED chip 10, the second LED chip 20 and the 3rd LED chip 30 is same substrate 101, that is, is existed
Form the epitaxial layer of different LED chips on same substrate by the means such as depositing, etching, the tandem process of chip chamber is with
One embodiment is identical with second embodiment, is not added with repeating herein.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
1. a kind of nonpolarity LED chip structure, it is characterised in that the chip structure includes：
First LED chip, it which is provided with nonpolarity terminals and polar electric pole；
Second LED chip, it which is provided with nonpolarity terminals and polar electric pole；
3rd LED chip, which is provided with polar electric pole；
First LED chip and second LED chip are connected by the 3rd LED chip, in the 3rd LED chip
Polar electric pole respectively with first LED chip and second LED chip polar electric pole be electrically connected with, formed at least
Two conductive paths, nonpolarity wiring first LED chip and second LED chip in different according to connection polarity
End is electrically connected with conductive path described in any of which bar.
2. nonpolarity LED chip structure according to claim 1, it is characterised in that the polar electric pole includes the first pole
Property electrode and the second polar electric pole.
3. nonpolarity LED chip structure according to claim 2, it is characterised in that first LED chip and described
It is described nonpolarity to connect at least provided with first polar electric pole and second polar electric pole in two LED chips
Line end is electrically connected with first polar electric pole or second polar electric pole.
4. nonpolarity LED chip structure according to claim 3, it is characterised in that at least set in the 3rd LED chip
There are two groups of first polar electric poles to electrically conduct and second polar electric pole.
5. nonpolarity LED chip structure according to claim 4, it is characterised in that described in first LED chip
The first polar electric pole and second polar electric pole electrically connect described in one group on first polar electric pole and the 3rd LED chip
Connect；First polarity described in another group on first polar electric pole and the 3rd LED chip in second LED chip
Electrode and second polar electric pole are electrically connected with.
6. nonpolarity LED chip structure according to claim 5, it is characterised in that described in first LED chip
First polar electric pole is electrically connected with second polar electric pole in the 3rd LED chip, in second LED chip
Second polar electric pole is electrically connected with first polar electric pole in the 3rd LED chip；Second LED chip
On first polar electric pole and the 3rd LED chip on second polar electric pole be electrically connected with, the first LED
Second polar electric pole on chip is electrically connected with first polar electric pole in the 3rd LED chip.
7. nonpolarity LED chip structure according to claim 1, it is characterised in that first LED chip and described
Two LED chips are connected by multiple 3rd LED chips.
8. nonpolarity LED chip structure according to claim 2, it is characterised in that first polar electric pole with it is described
Second polar electric pole shape is different.
9. nonpolarity LED chip structure according to claim 2, it is characterised in that first LED chip, the 2nd LED
Chip, the 3rd LED chip include successively from bottom to top：
Substrate；
N type semiconductor layer on the substrate；
Luminescent layer on the n type semiconductor layer；
P type semiconductor layer on the luminescent layer；
First polar electric pole is arranged on the p type semiconductor layer, and is electrically connected with the p type semiconductor layer, described
Second polar electric pole is arranged on the n type semiconductor layer, and is electrically connected with the n type semiconductor layer, first LED core
Nonpolarity terminals on piece, the second LED chip are electric with the n type semiconductor layer in the first LED chip, the second LED chip respectively
Property connection.
10. nonpolarity LED chip structure according to claim 9, it is characterised in that the substrate of first LED chip,
The substrate of second LED chip, the substrate of the 3rd LED chip are separated from each other setting or are a whole substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510672000.0A CN105206604B (en) | 2015-10-15 | 2015-10-15 | A kind of nonpolarity LED chip structure |
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| CN201510672000.0A CN105206604B (en) | 2015-10-15 | 2015-10-15 | A kind of nonpolarity LED chip structure |
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| CN105206604A CN105206604A (en) | 2015-12-30 |
| CN105206604B true CN105206604B (en) | 2018-01-19 |
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| CN204991704U (en) * | 2015-10-15 | 2016-01-20 | 聚灿光电科技股份有限公司 | Nonpolarity LED chip structure |
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| US20100032695A1 (en) * | 2008-08-05 | 2010-02-11 | The Regents Of The University Of California | Tunable white light based on polarization sensitive light-emitting diodes |
| US9172012B2 (en) * | 2007-10-31 | 2015-10-27 | Cree, Inc. | Multi-chip light emitter packages and related methods |
| CN102790045A (en) * | 2011-05-18 | 2012-11-21 | 展晶科技(深圳)有限公司 | Light emitting diode array and manufacturing method thereof |
| US8759847B2 (en) * | 2011-12-22 | 2014-06-24 | Bridgelux, Inc. | White LED assembly with LED string and intermediate node substrate terminals |
| US9074758B2 (en) * | 2013-02-11 | 2015-07-07 | Nthdegree Technologies Worldwide Inc. | Interlocking light sheet tiles |
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| CN204991704U (en) * | 2015-10-15 | 2016-01-20 | 聚灿光电科技股份有限公司 | Nonpolarity LED chip structure |
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