Source: https://patents.google.com/patent/CN101361200A/en
Timestamp: 2020-04-10 04:23:33
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CN101361200A - Semiconductor display device and process for manufacturing the same - Google Patents
Semiconductor display device and process for manufacturing the same Download PDF
CN101361200A
CN101361200A CNA2006800510455A CN200680051045A CN101361200A CN 101361200 A CN101361200 A CN 101361200A CN A2006800510455 A CNA2006800510455 A CN A2006800510455A CN 200680051045 A CN200680051045 A CN 200680051045A CN 101361200 A CN101361200 A CN 101361200A
CNA2006800510455A
石原孝幸
木越圣博
2006-01-19 Priority to JP011564/2006 priority
2006-12-22 Application filed by 罗姆股份有限公司 filed Critical 罗姆股份有限公司
2009-02-04 Publication of CN101361200A publication Critical patent/CN101361200A/en
Provided is a semiconductor display device capable of being easily manufactured and a method for manufacturing the semiconductor display device. The semiconductor display unit 1 includes: a printed circuit board 3 with a display section 2 formed thereon; a protection member 4; a embankment member 5; X lines 6; and Y lines 7. The embankment member 5 is composed of silicon resin which is capable of repelling epoxy resin constituting the protection member 4. Even when the embankment member 5 is lower than the protection member 4 or even when potting is performed to make the liquid epoxy resin 21 higher than the embankment member 5 at a manufacturing process, the epoxy resin 21 is repelled by the embankment member 5 and dose not spill.
The manufacture method of semiconductor display device and semiconductor display device
The present invention relates to utilize a plurality of semiconductor light-emitting elements to form the manufacture method of the semiconductor display device and the semiconductor display device of image.
It is well-known that the resin system guard block of utilization covers the technology of a plurality of semiconductor elements (semiconductor light-emitting elements) of being arranged on the substrate and metal wire etc.
For example, in the patent documentation 1, disclose a kind of semiconductor device, it possesses: be provided with a plurality of through holes and be configured in the substrate of the semiconductor element of each through hole; The mode that is arranged with the zone of a plurality of semiconductor elements with encirclement is formed on the resinous dyke parts on the substrate; Resinous guard block with all side formation in described dyke parts.
In the manufacturing process of described semiconductor device, at first, near configuring semiconductor element through hole is connected through hole with two root bead silks then with semiconductor element.Secondly, the mode that disposes the zone of semiconductor element with encirclement applies the dyke parts on substrate.At this, when forming the dyke parts,, the dyke parts that constitute by dual resin bed on substrate, have just been formed by constituting the resin coating twice of dyke parts.Thus, can form the dyke parts higher than the height of desirable guard block.
After this,, drip and constitute the high aqueous resin of wettability of the resin of dyke parts in the inboard of dyke parts, allow described drip resin solidify under the fixed temperature, only form guard block in the mode that covers semiconductor element in the inboard of dyke parts.
In this semiconductor device, form high dyke parts because apply twice resin bed, when guard block forms so even the aqueous resin that drips is arranged, this aqueous resin also is difficult to flow to the advantage in the dyke parts outside.
Patent documentation 1: TOHKEMY 2002-270627 communique
Be connected by two root bead silks with semiconductor element, so there is following problem: make manufacturing process complicated owing to through hole; And also make owing to a certain root bead silk is cut off the fault pilosity that causes.Have again,, and have the problem of the maximization of device because through hole is configured in different positions with semiconductor element.
Also have, because guard block is by constituting with the high resin of the wetability of the resin that constitutes the dyke parts, so the resin that constitutes the resin of guard block and constitute dyke parts fusion and can not rejecting mutually mutually easily.Therefore, owing to must form the dyke parts higher, must carry out twice coatings so constitute the resin of dyke parts as mentioned above than the height of desirable guard block.Thus, there is the complicated problem of manufacturing process of semiconductor device of making.
The invention that the present invention carries out in order to address the above problem just, its purpose are to provide the manufacture method of a kind of semiconductor display device that can simply make and semiconductor display device.
In order to achieve the above object, the invention that technical scheme 1 is put down in writing, it is a kind of semiconductor display device, it is characterized in that, comprise: substrate, it forms display part on the part on surface, this display part has a plurality of through holes that formed conductive component and is arranged on semiconductor light-emitting elements on described each through hole; Cover the resinous guard block on described display part surface; With resinous dyke parts, mode with the peripheral part that is enclosed in described display part forms for the outflow that prevents described guard block for it, and the resin that forms described dyke parts can reject the resin that constitutes described guard block.
Also have, the invention that technical scheme 2 is put down in writing is technical scheme 1 a described semiconductor display device, it is characterized in that described guard block forms also highlyer than dyke parts.
Also have, the invention that technical scheme 3 is put down in writing is each described semiconductor display device in technical scheme 1 or 2, it is characterized in that, between described dyke parts and described display part, have in vain fixed interval.
Also have, the invention that technical scheme 4 is put down in writing is each described semiconductor display device in the technical scheme 1～3, it is characterized in that, forms auxiliary dyke parts with the interval of vacating regulation and the mode of surrounding the peripheral part of described dyke parts.
Also have, the invention that technical scheme 5 is put down in writing is each described semiconductor display device in the technical scheme 1～4, it is characterized in that, at the back side of described substrate, is provided with metal tabular strengthening part in the display part The corresponding area at least.
Also have, the invention that technical scheme 6 is put down in writing is each described semiconductor display device in the technical scheme 1～5, it is characterized in that, form the sealing part of conductivity, so that the opening of described semiconductor light-emitting elements one side of being provided with of described through hole is sealed.
Also have, the invention that technical scheme 7 is put down in writing is a kind of manufacture method of semiconductor display device, it is characterized in that, comprise: the 1st operation, on substrate, form display part, wherein display part has a plurality of through holes that formed conductive component and is arranged on semiconductor light-emitting elements on described each through hole; The 2nd operation forms resinous dyke parts in the mode of the peripheral part that surrounds described display unit; The 3rd operation, in the inboard of dyke parts, and in the mode on the surface that covers described display part; can be configured the aqueous resin that the resin of described dyke parts rejects; pour into also highlyer, make described aqueous resin solidification then, thereby form guard block than described dyke parts.
According to the present invention, by configuring semiconductor light-emitting component on the through hole that has formed conductive component, thereby in configuration, can be electrically connected conductive component and the semiconductor light-emitting elements that is formed on the through hole, therefore manufacturing process can be simplified.And, because directly be electrically connected conductive component and semiconductor light-emitting elements, thereby can omit at least 1, so the fault that can allow cut-out owing to metal fine cause obtains minimizing with connecting the metal fine that conductive component and semiconductor light-emitting elements use.And, by configuring semiconductor light-emitting component on through hole, thereby when being configured in the position different with through hole, semiconductor light-emitting elements compares, can be able to miniaturization.
And, owing to the dyke parts are constituted by rejecting the resin that constitutes the guard block resin, so in the manufacturing process that forms guard block, the resin that constitutes guard block can be flicked by the resin that constitutes the dyke parts.So, even form the dyke parts also lower, also can prevent the aqueous resin that drips in the inboard of dyke parts in order to form guard block than the height of desirable guard block, cross the dyke parts and flow out to the outside of dyke parts.Therefore, because the dyke parts can form also lowlyer than guard block, thereby the manufacturing process that can simplify semiconductor display device makes simply.
Fig. 1 represents the stereogram of the semiconductor display device integral body that the present invention relates to.
Fig. 2 is the general profile chart of the II-II line of presentation graphs 1.
Fig. 3 is the expansion vertical view of the rectangle III of presentation graphs 1.
Fig. 4 is the cutaway view of the IV-IV line of presentation graphs 3.
Fig. 5 is the general profile chart of semiconductor display device in each operation of manufacturing process of the semiconductor display device that the present invention relates to of expression.
Fig. 6 is the general profile chart of semiconductor display device in each operation of manufacturing process of the semiconductor display device that the present invention relates to of expression.
Fig. 7 is the general profile chart of semiconductor display device in each operation of manufacturing process of the semiconductor display device that the present invention relates to of expression.
Fig. 8 is the general profile chart of the modification of expression semiconductor display device.
Fig. 9 is the general profile chart of the modification of expression semiconductor display device.
Figure 10 is the general profile chart of the modification of expression semiconductor display device.
Figure 11 is the pixel cutaway view on every side of the modification of expression semiconductor display device.
Among the figure: 1-semiconductor display device, 2-display part, 3-tellite, 3a-tellite; the 4-guard block, 5-dyke parts, 5a-assists the dyke parts, the 6-X wiring; the 6a-outside terminal, 7-Y wiring, 7a-outside terminal; the 11-pixel, 12-through hole, 13-semiconductor light-emitting elements; 14-X side metal film, 15-Y side metal film, 16-metal fine; 21-epoxy resin, 31-strengthening part, 35-sealing part.
Below, with reference to accompanying drawing an embodiment of the invention are described.Fig. 1 is the stereogram of the semiconductor display device integral body that the present invention relates to of expression.Fig. 2 is the general profile chart of the II-II line of presentation graphs 1.Fig. 3 is the expansion vertical view of the rectangle III of presentation graphs 1.Fig. 4 is the cutaway view of the IV-IV line of presentation graphs 3.And, in Fig. 2, for convenience X wiring 6 described later, Y wiring 7 and metal fine 16 etc. are omitted.
As shown in Figures 1 and 2, semiconductor display device 1 includes tellite 3, guard block 4, dyke parts 5, X wiring 6 and the Y wiring 7 that has formed display part 2.
Tellite 3 can use glass epoxy substrate etc.Central portion at tellite 3 is provided with display part 2.In display part 2, be provided with a plurality of pixels 11 with rectangular.
As shown in Figures 3 and 4, form through hole 12 in each pixel 11, and on each through hole 12, also be provided with semiconductor light-emitting elements 13.
Through hole 12 runs through tellite 3 and forms.The peripheral part that mend the interior perimembranous of through hole 12 and upper end is formed with X side metal film 14.And, the conductive component that X side metal film 14 is equivalent in the technical scheme to be put down in writing.This X side metal film 14 is to be electrically connected with X wiring 6 in the back side of tellite 3 side.The inboard of the X side metal film 14 in being formed at through hole 12 is embedded with epoxy resin.
And, in the mode of the peripheral part of the top side of surrounding through hole 12, vacate institute with X side metal film 14 and decide the interval, be formed with the Y side metal film 15 of circle.It is 7 integrally formed and be electrically connected that this Y side metal film 15 and Y connect up.
Semiconductor light-emitting elements 13 is made of the light-emitting diode that the central portion at above-below direction is provided with luminescent layer (diagram is omitted).A following side of semiconductor light-emitting elements 13 is electrically connected with X side metal film 14.And a top side of semiconductor light-emitting elements 13 is in order to be electrically connected with Y side metal film 15 and to be welded by metal fine 16.
Thus, by in arbitrary X wiring 6 and Y wiring 7, applying voltage, thereby can inject electronics and holes to the semiconductor light-emitting elements 13 on the crossover location that is configured in the X wiring 6 that has been applied in voltage and Y wiring 7.Like this, just make the luminescent layer of the semiconductor light-emitting elements 13 that has injected electronics and hole luminous, and can form image.
As shown in Figure 2, guard block 4 is made of the epoxy resin (for example, the about 30Dyne/cm of tension force) of light-permeable, forms also highlyer than semiconductor light-emitting elements 13, and is set to cover display part 2.Constitute the epoxy resin of guard block 4, the about 10mPas of resin viscosity～about 10Pas preferably, about 60 ℃～about 150 ℃ of hardening temperatures.The zone that is positioned at above the display part 2 at guard block 4 forms comparatively smoothly.The about 1.0mm of the thickness of the par of this guard block 4.And, though the thickness of the par of guard block 4 is not will be defined as about 1.0mm especially, preferably between about 0.3mm～about 5.0mm.
Guard block 4 is the parts that are used to protect semiconductor light-emitting elements 13.And, because the refractive index ratio air height of epoxy resin, so by between semiconductor light-emitting elements 13 and air, epoxy resin being set, so the light that can suppress to be sent by semiconductor light-emitting elements 13 is by semiconductor light-emitting elements 13 and outside boundary reflection.Therefore, can more effectively send light to the outside from semiconductor light-emitting elements 13.
As shown in Figures 1 and 2, dyke parts 5 to be surrounding the mode of display part 2, vacate the interval more than about 1.0mm and form from the periphery of display part 2.Like this, owing to the interval of vacating more than about 1.0mm from the periphery of display part 2 forms,, therefore the guard block 4 of display part 2 tops is formed flatly so can make the sloping portion of the peripheral part of guard block 2 only be formed on the outside of display part 2.Dyke parts 5 form the above width of about 0.3mm.And, the width of dyke parts 5, preferably about 0.5mm～about 2.0mm.
Dyke parts 5 are made of the silicones that can reject the epoxy resin that constitutes guard block 4 (for example, the about 20Dyne/cm of tension force).So, on dyke parts 5, can not form guard block 4.Thus, even the aspect ratio guard block 4 of dyke parts 5 forms lowly, also can prevent to cross dyke parts 5 and flow out at the inboard guard blocks 4 that form of dyke parts 5.Thereby, can form the guard block 4 higher than the height of dyke parts 5.
Each X wiring 6 is made of metallic film, is formed on the back side one side of tellite 3 in the mode of extending along directions X.Be formed with in the end of X wiring 6 and be used for the outside terminal 6a that is connected with outside control unit (diagram omission).
Each Y wiring 7 is made of metallic film, is formed on surface one side of tellite 3 in the mode of extending along the Y direction.Therefore, X wiring 6 utilizes tellite 3 to insulate with Y wiring 7.Be formed with in the end of Y wiring 7 and be used for the outside terminal 7a that is connected with the control unit of outside.
And, on the crossover location of X wiring 6 and Y wiring 7, be provided with above-mentioned pixel 11.Thus, by applying voltage by control unit to the semiconductor light-emitting elements 13 of desirable pixel 11, thereby can make semiconductor light-emitting elements 13 luminous and form image via each outside terminal 6a and 7a.
Secondly, the manufacturing process about above-mentioned semiconductor display device describes with reference to accompanying drawing.Fig. 5～Fig. 7 is the general profile chart of semiconductor display device in each operation of manufacturing process of the semiconductor display device that the present invention relates to.
At first, as shown in Figure 5, form on tellite 3 after the through hole 12, printing comprises 6,7 (diagram is omitted) and the metal films 14,15 that respectively connect up of outside terminal 6a, 7a.Secondly, by configuring semiconductor light-emitting component 13 on each through hole 12, thereby via X side metal film 14 with after X wiring 6 is connected, again with metal fine 16 with semiconductor light-emitting elements 13 and Y wiring 7 welding mutually, thereby on tellite 3 formation display part 2 (the 1st operation).
Secondly, as shown in Figure 6, vacate certain interval,, form the dyke parts 5 (the 2nd operation) that silicones constitutes by silk screen printing in the mode of surrounding from the peripheral part of display part 2.
Secondly, as shown in Figure 7, pour into aqueous epoxy resin 21 to such an extent that exceed dyke parts (the 3rd operation) in the mode that can cover display part 2 in the inboard of dyke parts 5.At this, dyke parts 5 are because be to be formed by the silicones that can reject epoxy resin 21, so even epoxy resin 21 is also higher than dyke parts 5, also since epoxy resin 21 rejected by the upper surface of dyke parts 5, thereby can allow epoxy resin 21 can't cross dyke parts 5 and flow out.
And, if epoxy resin 21 reaches desirable height (for example, about 1.0mm), then stop perfusion.After this, epoxy resin 21 is heated to curing temperature (for example, about 60 ℃～about 150 ℃), epoxy resin 21 is solidified.Thus, form the guard block 4 that the epoxy resin 21 by after solidifying shown in Figure 2 constitutes.So far, semiconductor display device 1 has just been finished.
As mentioned above, owing to be configuring semiconductor light-emitting component 13 on the through hole that has formed X side metal film 14, thereby in configuration, can connect semiconductor light-emitting elements 13 and X side metal film 14, so manufacturing process can be simplified.And, because by directly being electrically connected X side metal film 14 and semiconductor light-emitting elements 13, thereby can save the metal fine that connects X side metal film 14 and semiconductor light-emitting elements 13, so the fault that can allow cut-out owing to metal fine cause obtains minimizing.
And, by configuring semiconductor light-emitting component 13 on through hole 12, thereby compare with the situation that semiconductor light-emitting elements is configured in the position different with through hole, can make semiconductor display device 1 be able to miniaturization.
And; because guard block 4 is made of epoxy resin; and dyke parts 5 are made of the silicones that can reject epoxy resin; thereby in the manufacturing process that forms guard block 4; pour into also highlyer than dyke parts 5 even will constitute the liquid epoxy resin 21 of guard block 4, liquid epoxy resin 21 also can be rejected by dyke parts 5.So,, can prevent that also epoxy resin 21 (guard block 4) from flowing out even dyke parts 5 are also lower than the height of desirable guard block 4.Thus, because the guard block 4 also higher than dyke parts 5 can easily form,, also just can easily make semiconductor device 1 so just can simplify the manufacturing process of dyke parts 5.
And, by vacate from the peripheral part of display part 2 fixed interval form dyke parts 5, thereby can be smooth so that be positioned at the guard block 4 of upper area of display part 2.Therefore, owing to can be suppressed near the distortion in images that forms the peripheral part of display part 2, so high-quality image can be provided.
More than, though utilize above-mentioned execution mode that the present invention is had been described in detail, for the ordinary skill in the art, the invention is not restricted to execution mode illustrated in this specification.Under the aim of the present invention that the present invention can be determined in the record that does not break away from the technical scheme scope and the prerequisite of scope, can be implemented in the mode of revising and change.Therefore, the record of this specification is to be illustrated as purpose with example, for the meaning of the present invention without any restriction.Below, be illustrated at the alter mode of above-mentioned execution mode being carried out part change.
For example, shown in Figure 8, also can the outer circumferential side of dyke parts 5 vacate fixed interval form auxiliary dyke parts 5a.Auxiliary dyke parts 5a is by formed with the same silicones of the dyke parts 5 that can reject the epoxy resin that constitutes guard block 4.Like this, assist dyke parts 5a, thereby in the operation that forms guard block 4, flow out from dyke parts 5, also can stop by auxiliary dyke parts 5a even form the liquid epoxy resin of guard block 4 usefulness by being provided with.Therefore, can further suppress the outflow of liquid epoxy resin.Also have, though require preferably to vacate the interval of about 0.5mm between dyke parts 5 and the auxiliary dyke parts 5a, interval in addition, for example, the interval of about 0.1mm～about 5.0mm is also passable.
Also have, as shown in Figure 9, also can metal tabular strengthening parts 31 such as aluminium be set in display part 2 The corresponding area of the back side of tellite 3 side.Like this; by strengthening part 31 being set in the back side of tellite 3 side; thereby by heating when solidifying the epoxy resin that constitutes guard block 4, just can suppress the warpage of the tellite 3 that causes because of guard block 4 is different with the coefficient of thermal expansion of tellite 3.
Also have,, can make strengthening part 31 improve the thermal diffusivity of display part 2 owing to used the high material of thermal diffusivities such as aluminium.And, be preferably between tellite 3 and the strengthening part 31 coating and have insulating properties and the high lubricating oil of heat conductivity.
Also have, as shown in figure 10, also can add tellite 3a again, on tellite 3a, form above-mentioned X wiring 6 in the back side of strengthening part 31 side.
Also have, constitute the material of guard block 4 and dyke parts 5, just an example is not limited to above-mentioned material, as long as constitute dyke parts 5 by the material that can reject the material that constitutes guard block 4, and does not have other special qualification.
Also have, the manufacture method of dyke parts 5 is not limited to silk screen printing, also can by other printing process, duplicate and distributor (dispenser) waits and makes.
Also have, as shown in figure 11, also can seal with the opening of semiconductor light-emitting elements 13 1 sides of 35 pairs of through holes 12 of sealing part.Sealing part 35 is by constituting with the same metal material (for example copper) of metal film 14,15.And, implement Ni/Au at the upper surface of sealing part 35 and electroplate.Like this, the opening of through hole 12 is sealed, thereby the whole bottom surface of semiconductor light-emitting elements 13 is electrically connected with sealing part 35, thereby can reduce the resistance value between semiconductor light-emitting elements 13 and the X side metal film 14 by utilizing sealing part 35.Therefore, even the configuration of semiconductor light-emitting elements 13 dislocation, the part of semiconductor light-emitting elements 13 bottom surfaces is exposed from sealing part 35 dislocation, also can flow through enough electric currents.Like this, owing to can reduce the diameter of the upper surface of sealing part 35 and X side metal film 14,, can improve the area density of pixel 11 so can dwindle the distance between the adjacent semiconductor light-emitting elements 13.
1. semiconductor display device, it comprises:
Substrate, it forms display part on the part on surface, and this display part has a plurality of through holes that formed conductive component and is arranged on semiconductor light-emitting elements on each described through hole;
Cover the resinous guard block on described display part surface; With
Resinous dyke parts, mode with the peripheral part that is enclosed in described display part forms for the outflow that prevents described guard block for it,
The resin that forms described dyke parts rejects the resin that constitutes described guard block.
2. semiconductor display device according to claim 1 is characterized in that,
Described guard block forms also highlyer than described dyke parts.
3. according to each described semiconductor display device in claim 1 or 2, it is characterized in that,
The interval of between described dyke parts and described display part, having regulation in vain.
4. according to each described semiconductor display device in the claim 1～3, it is characterized in that,
With the interval of vacating regulation and the mode of surrounding the peripheral part of described dyke parts, be formed with auxiliary dyke parts.
5. according to described semiconductor display device in the claim 1～4, it is characterized in that,
At the back side of described substrate, be provided with metal tabular strengthening part in the display part The corresponding area at least.
6. according to each described semiconductor display device in the claim 1～5, it is characterized in that,
Be formed with the sealing part of conductivity, so that the opening of described semiconductor light-emitting elements one side of being provided with of described through hole is stopped up.
7. the manufacture method of a semiconductor display device, it comprises:
The 1st operation forms display part on substrate, wherein this display part has a plurality of through holes that formed conductive component and is arranged on semiconductor light-emitting elements on each described through hole;
The 2nd operation forms resinous dyke parts in the mode of the peripheral part that surrounds described display part;
The 3rd operation; in the inboard of dyke parts, and in the mode on the surface that covers described display part, can be configured the aqueous resin dosing equipment that the resin of described dyke parts rejects must be also higher than described dyke parts; make described aqueous resin solidification then, thereby form guard block.
CNA2006800510455A 2006-01-19 2006-12-22 Semiconductor display device and process for manufacturing the same CN101361200A (en)
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CNA2006800510455A CN101361200A (en) 2006-01-19 2006-12-22 Semiconductor display device and process for manufacturing the same
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Open date: 20090204