WO2016150033A1 - 电子器件的封装方法和封装系统 - Google Patents
电子器件的封装方法和封装系统 Download PDFInfo
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- WO2016150033A1 WO2016150033A1 PCT/CN2015/084212 CN2015084212W WO2016150033A1 WO 2016150033 A1 WO2016150033 A1 WO 2016150033A1 CN 2015084212 W CN2015084212 W CN 2015084212W WO 2016150033 A1 WO2016150033 A1 WO 2016150033A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass frit
- glue
- substrate
- packaging
- pattern
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 44
- 239000011521 glass Substances 0.000 claims abstract description 133
- 239000000758 substrate Substances 0.000 claims abstract description 87
- 239000007787 solid Substances 0.000 claims abstract description 39
- 238000005498 polishing Methods 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims description 63
- 239000000843 powder Substances 0.000 claims description 56
- 229920002120 photoresistant polymer Polymers 0.000 claims description 28
- 239000002242 colloidal glass Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000005245 sintering Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 238000005538 encapsulation Methods 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 8
- 238000004513 sizing Methods 0.000 claims description 8
- 238000000059 patterning Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000004925 denaturation Methods 0.000 claims description 2
- 230000036425 denaturation Effects 0.000 claims description 2
- 235000015110 jellies Nutrition 0.000 claims description 2
- 239000008274 jelly Substances 0.000 claims description 2
- 239000000565 sealant Substances 0.000 abstract description 10
- 238000005336 cracking Methods 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/40—Thermal treatment, e.g. annealing in the presence of a solvent vapour
- H10K71/421—Thermal treatment, e.g. annealing in the presence of a solvent vapour using coherent electromagnetic radiation, e.g. laser annealing
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/562—Protection against mechanical damage
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/821—Patterning of a layer by embossing, e.g. stamping to form trenches in an insulating layer
Definitions
- the present invention relates to the field of manufacturing electronic devices, and in particular to a method of packaging an electronic device and a packaging system for performing the same.
- OLEDs Organic light-emitting diodes
- OLEDs Organic light-emitting diodes
- materials commonly used as sealants mainly include UV-curable glue and glass frit.
- the glass powder glue is usually deposited on the package glass by screen printing, and then the package glass is aligned with the substrate on which the OLED device is formed, and then the glass powder is cured.
- the OLED device obtained by this method is liable to cause cracks at the position where the sealant (glass frit) is located, thereby causing the organic light emitting diode device to fail.
- the electronic device obtained by the packaging method is less prone to cracking at the package position.
- a packaging method of an electronic device includes forming a package substrate, and the step of forming the package substrate includes:
- the defining pattern including a groove for defining a position of the glass powder
- the defining pattern is removed to form a solid glass frit paste on the base substrate, thereby obtaining the package substrate.
- the step of forming a defining pattern on the base substrate comprises:
- the photoresist is subjected to exposure development to obtain the defined pattern.
- the material used to form the defined pattern maintains a solid state without denaturation during pre-sintering of the colloidal glass frit, and maintains a solid state upon polishing.
- the pre-sintering temperature is from 100 ° C to 120 ° C.
- the step of removing the defined pattern to form a solid glass frit glue on the package substrate comprises:
- the pre-cured glass frit glue is subjected to secondary sintering to obtain a solid glass frit glue.
- the temperature of the secondary sintering is from 400 ° C to 550 ° C.
- the step of disposing the glass frit in the groove comprises:
- the packaging method further includes:
- the solid glass frit glue is irradiated by laser light to melt the solid glass frit.
- the packaging method further comprises: preparing a gelatinous glass powder glue, specifically comprising:
- An organic solvent and a macromolecular organic substance are added to the glass frit to obtain a glass powder having a higher viscosity.
- the packaging method further comprises:
- the surface of the base substrate is subjected to a cleaning process.
- a package system for packaging an electronic device comprising:
- a patterning device for forming a defined pattern on the base substrate, the defined pattern comprising a groove for defining a position of the glass frit;
- a sizing device for providing a glass frit glue in the groove
- a polishing apparatus for polishing the defined pattern and an upper surface of the preliminary cured glass frit glue
- a graphics removal device is defined that is used to remove the defined graphics.
- the glass frit glue is a gel obtained by mixing glass frit with an organic solvent.
- the heating device is specifically configured to:
- the colloidal glass frit glue is heated to obtain a preliminary cured glass frit glue, the pre-cured glass frit glue is heated to obtain a solid glass frit glue, and the solid glass frit glue is heated to make the solid state
- the glass powder glue melts.
- the defining pattern is made of photoresist
- the patterning device comprises a photoresist coating device and an exposure developing device
- the defining pattern removing device is a photoresist stripping device.
- the photoresist coating device is configured to coat a base substrate with a layer of photoresist for exposing and developing the photoresist to obtain the defined pattern.
- the heating device comprises a aligning device capable of aligning the package substrate with a substrate on which an electronic device is formed, and a laser device capable of emitting a glass powder for the glass powder The heated laser light is applied.
- the sizing device comprises a glue spraying device and a squeegee for applying a layer of glass powder glue on the base substrate on which the defined pattern is formed, the squeegee being used for scraping Except for the excess glass powder glue on the defined pattern.
- the serration of the surface of the pre-cured glass powder glue can be removed by polishing, and a smooth surface can be obtained on the surface of the pre-cured glass powder glue, and the glass powder glue can be completely cured after being completely cured.
- the surface therefore, after the package substrate and the substrate on which the electronic device is formed are paired with the package substrate, potential stress points are not formed on the substrate on which the electronic device is formed, thereby obtaining a better packaging effect.
- FIG. 1 is a schematic view showing a surface of a glass powder after curing by using a packaging method of the prior art
- FIG. 2 is a schematic view showing the surface of the glass frit cured and polished after using the encapsulation method provided by the present invention
- 3(a) to 3(g) are schematic flow charts of a packaging method provided by the present invention.
- the inventors of the present invention have repeatedly found that the package described in the background art is utilized.
- the electronic device obtained by the method is prone to cracking because the glass powder is cured, and a sharp edge is formed on the upper surface (as shown in FIG. 1), and the sharp edge is generated after contact with the substrate on which the electronic device is formed.
- the potential stress point, and this local stress point in the glass becomes the initiation point of the crack.
- the encapsulation method includes the steps of: forming a package substrate, and the step of forming the package substrate specifically includes:
- the defining pattern 220 including a groove 210 for defining a position of the glass powder (as shown in FIG. 3(c));
- a colloidal glass powder glue 310 is disposed in the groove 210 (as shown in FIG. 3(d));
- Pre-sintering the colloidal glass frit 310 to obtain a pre-cured glass frit 320 (as shown in FIG. 3(e));
- the defining pattern 220 is removed (as shown in FIG. 3(f)), and the glass powder 320 is completely cured to form a solid glass frit 330 on the base substrate 100 (as shown in FIG. 3(g)), thereby The package substrate is obtained.
- the colloidal glass frit 310 here is a jelly obtained by mixing glass frit with an organic solvent.
- the pre-sintering can cause the organic solvent in the colloidal glass powder to evaporate, thereby obtaining the pre-cured glass frit 320.
- the surface of the pre-cured glass powder 320 can be removed by polishing to obtain a smooth surface on the surface of the initially cured glass powder 320 (as shown in FIG. 2), and the glass powder can be completely cured to maintain a smooth surface. . Therefore, after the package substrate is paired with the substrate on which the electronic device is formed, potential stress points are not formed on the substrate on which the electronic device is formed, thereby obtaining a better packaging effect, and the resulting electronic device is not It is prone to cracks.
- the base substrate 100 may be a transparent substrate, for example, the base substrate 100 may be a transparent glass plate.
- the specific material and the specific forming method for defining the pattern 220 are not particularly limited as long as the solid state is not denatured when the gel-like glass powder is pre-sintered, and the solid state can be maintained during polishing. .
- the defining pattern may be made of a photoresist 200. Accordingly, the step of forming a defining pattern on the substrate substrate 100 may include:
- the photoresist 200 is subjected to exposure development to obtain a definition pattern 220 (as shown in FIG. 3(c)).
- Forming the defining pattern 220 by the photoresist 200 can precisely control the position of the trench 210, so that the position of the solid glass frit 330 on the base substrate 100 can be accurately controlled, so that the accuracy of the cartridge can be ensured.
- the pre-sintering temperature is from 100 ° C to 120 ° C, thereby ensuring that the organic solvent in the glass powder is completely volatilized and the limitation is prevented. Graphic distortion.
- the step of removing the defined pattern and completely curing the pre-cured glass frit glue to form a solid glass frit paste on the package substrate may include:
- the pre-cured glass frit glue is subjected to secondary sintering to obtain a solid glass frit 330.
- the temperature of the secondary sintering is from 400 ° C to 550 ° C.
- the step of disposing the glass powder in the groove 210 specifically includes:
- the excess glass frit glue on the defined pattern 220 is scraped off.
- the colloidal glass powder 310 After coating a layer of glass powder on the base substrate on which the defining pattern 220 is formed, the colloidal glass powder 310 naturally flows into the groove, and the scraping plate scrapes off the defined pattern 220. After the colloidal glass powder glue 310, it can be made in the groove The colloidal glass powder 310 has a relatively flat initial surface, which can reduce the difficulty of the subsequent polishing process. Moreover, the use of the above method to set the glass powder glue does not require complicated equipment, and the cost is low.
- the packaging method further includes:
- the solid glass frit 330 is melted to bond the package substrate and the electronic device-forming substrate together.
- the solid glass frit paste 330 may be irradiated with laser light to melt the solid glass frit paste 330 to bond the package substrate and the electronic device-forming substrate together. It is easy to understand that the viscosity of the glass powder after melting is quite large, and the bonding strength after re-solidification is also higher than that of a general binder, so that the method provided by the present invention can be improved. The bonding strength between the package cover and the cover plate on which the electronic device is formed.
- the specific type of the electronic device is not particularly limited, and for example, the electronic device may be an organic light emitting diode.
- the encapsulation method further includes the step of providing the substrate substrate 100 and performing a cleaning process on the surface of the substrate substrate 100, as shown in FIG. 3(a).
- a package system for packaging an electronic device comprising:
- a patterning device for forming a defining pattern 220 on a substrate, the defining pattern 220 comprising a groove 210 defining a position of the glass frit;
- a sizing device configured to provide a colloidal glass powder glue 310 in the groove 210;
- a heating device for heating the glass frit is used to heat the colloidal glass frit 310 to obtain a preliminary cured glass frit 320, and the pre-cured glass frit 320 is heated to obtain a solid glass frit 330, and Heating the solid glass frit 330 to melt the solid glass frit 330;
- a graphics removal device is defined that is used to remove the defined graphics 220.
- the patterning apparatus may perform the step of forming the defining pattern 220 as shown in FIGS. 3(b) to 3(c), and the sizing apparatus may perform the setting of the gel as shown in FIG. 3(d)
- the glass powder glue 310 step which can be used to perform the steps of heating the colloidal glass powder glue 310 and the solid glass powder glue 330 as shown in FIGS. 3(e) and 3(g).
- Each of the above devices is easy to implement. Therefore, the above-described package system provided by the present invention can perform the method provided by the present invention well and has a low cost.
- the specific structure of the polishing apparatus is not particularly limited as long as the surface of the defining pattern 220 and the preliminary cured glass powder 320 can be polished.
- the polishing apparatus can be a polishing machine.
- the sizing device may include a glue spraying device and a squeegee, and the glue-like glass powder 310 is glued on the upper surface of the defining pattern 220, and then the excess gel is scraped off by the squeegee. Glass powder glue 310.
- the patterning device includes a photoresist coating device and an exposure developing device.
- the defined pattern removing device is a photoresist stripping device.
- the photoresist coating device is used for coating a layer of photoresist 200 on the base substrate 100
- the exposure developing device is used for exposing and developing the photoresist 200 to obtain a defining pattern 220. It will be readily understood by those skilled in the art that a mask is required in the above exposure development.
- the heating device comprises a aligning device capable of aligning the package substrate with a substrate on which an electronic device is formed, and a laser device capable of emitting a colloidal glass powder
- the glue 310 becomes a preliminary cured glass frit 320
- the initially cured glass frit 320 becomes a solid glass frit 330
- the solid glass frit 330 melts the laser.
- the packaging device provided by the invention has simple structure and low cost, and can better implement the above-mentioned packaging method provided by the invention.
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
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Abstract
Description
Claims (18)
- 一种电子器件的封装方法,其特征在于,所述封装方法包括步骤:形成封装基板,并且所述形成封装基板的步骤包括:在衬底基板上形成限定图形,所述限定图形包括用于限定玻璃粉胶位置的沟槽;在所述沟槽中设置胶状的玻璃粉胶;对所述胶状的玻璃粉胶进行预烧结,以获得初步固化的玻璃粉胶;对所述限定图形和所述初步固化的玻璃粉胶的上表面进行抛光;以及去除所述限定图形,以在所述衬底基板上形成固态的玻璃粉胶,从而获得所述封装基板。
- 根据权利要求1所述的封装方法,其特征在于,在衬底基板上形成限定图形的步骤包括:在所述衬底基板上涂敷一层光刻胶;以及对所述光刻胶进行曝光显影,以获得所述限定图形。
- 根据权利要求1所述的封装方法,其特征在于,形成所述限定图形的材料在预烧结所述胶状的玻璃粉胶时维持固态不发生变性、并在抛光时维持固态。
- 根据权利要求2所述的封装方法,其特征在于,所述预烧结的温度为100℃-120℃。
- 根据权利要求2所述的封装方法,其特征在于,去除所述限定图形以在所述封装基板上形成固态的玻璃粉胶的步骤包括:剥离所述限定图形;以及对所述初步固化的玻璃粉胶进行二次烧结,以获得固态的玻璃粉胶。
- 根据权利要求5所述的封装方法,其特征在于,所述二次烧结的温度为400℃-550℃。
- 根据权利要求1至6中任意一项所述的封装方法,其特征在于,在所述沟槽中设置玻璃粉胶的步骤包括:在形成有所述限定图形的衬底基板上涂敷一层玻璃粉胶;以及刮除所述限定图形上多余的玻璃粉胶。
- 根据权利要求1至6中任意一项所述的封装方法,其特征在于,所述封装方法还包括:将所述封装基板与形成有电子器件的基板进行对盒;以及使所述固态的玻璃粉胶融化,以将所述封装基板和所述形成有电子器件的基板粘结在一起。
- 根据权利要求8所述的封装方法,其特征在于,通过激光照射固态的玻璃粉胶,使得该固态的玻璃粉胶融化。
- 根据权利要求1所述的封装方法,其特征在于,在所述沟槽中设置胶状的玻璃粉胶之前,所述封装方法还包括:制备胶状的玻璃粉胶,具体包括:向玻璃粉中添加有机溶剂和大分子的有机物,以获得具有较高粘度的玻璃粉胶。
- 根据权利要求1所述的封装方法,其特征在于,在衬底基板上形成限定图形之前,所述封装方法还包括:提供衬底基板;以及对所述衬底基板的表面进行清洁处理。
- 一种用于封装电子器件的封装系统,其特征在于,所述封装系统包括:构图设备,所述构图设备用于在衬底基板上形成限定图形,所述限定图形包括限定玻璃粉胶位置的沟槽;施胶设备,所述施胶设备用于在所述沟槽中设置胶状的玻璃粉胶;加热设备,所述加热设备用于对玻璃粉进行加热;抛光设备,所述抛光设备用于对所述限定图形和所述初步固化的玻璃粉胶的上表面进行抛光;限定图形去除设备,所述限定图形去除设备用于去除所述限定图形。
- 根据权利要求12所述的封装系统,其特征在于,所述玻璃粉胶为玻璃粉与有机溶剂混合而得到的胶状物。
- 根据权利要求12或13所述的封装系统,其特征在于,所述加热设备具体用于:对胶状的玻璃粉胶进行加热以获得初步固化的玻璃粉胶、对所述初步固化的玻璃粉胶进行加热以获得固态的玻璃粉胶以及对固态的玻璃粉胶进行加热以使得所述固态的玻璃粉胶熔化。
- 根据权利要求12至14中任意一项所述的封装系统,其特征在于,所述限定图形由光刻胶制成,所述构图设备包括光刻胶涂布装置和曝光显影装置,所述限定图形去除设备为光刻胶剥离设备。
- 根据权利要求15所述的封装系统,其特征在于,所述光刻胶涂布装置用于在衬底基板上涂覆一层光刻胶,所述曝光显影装置用于对光刻胶进行曝光显影,以获得所述限定图形。
- 根据权利要求12或16中任意一项所述的封装系统,其特征在于,所述加热设备包括对位装置和激光仪,所述对位装置能够将所述封装基板与形成有电子器件的基板进行对盒,所述激光仪能够发射出用于对玻璃粉胶进行加热的激光。
- 根据权利要求12或17中任意一项所述的封装系统,其特征在于,所述施胶设备包括喷胶装置和刮板,所述喷胶装置用于在形成有所述限定图形的衬底基板上涂敷一层玻璃粉胶,所述刮板用于刮除所述限定图形上多余的玻璃粉胶。
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US14/913,090 US9614173B2 (en) | 2015-03-20 | 2015-07-16 | Packaging method for electronic device and packaging system |
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CN201510126298.5A CN104716275A (zh) | 2015-03-20 | 2015-03-20 | 电子器件的封装方法和封装系统 |
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CN106960914A (zh) * | 2017-03-22 | 2017-07-18 | 京东方科技集团股份有限公司 | 封装结构、显示面板、显示装置及其制作方法 |
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CN104716275A (zh) * | 2015-03-20 | 2015-06-17 | 京东方科技集团股份有限公司 | 电子器件的封装方法和封装系统 |
CN105405987A (zh) * | 2015-12-23 | 2016-03-16 | 昆山国显光电有限公司 | 提高oled封装效果的方法 |
CN106274104B (zh) * | 2016-08-12 | 2017-08-25 | 京东方科技集团股份有限公司 | 一种印刷方法 |
CN106646890A (zh) * | 2017-03-10 | 2017-05-10 | 京东方科技集团股份有限公司 | 虚拟现实显示器件及其制造方法 |
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