Novel-structure suction nozzle piece for preventing foreign matter from puncturing glass

Abstract

The invention relates to the related technical field of silicon-based OLED (Organic Light Emitting Diode) surface mounting process, in particular to a novel-structure suction nozzle piece for preventing foreign matters from puncturing glass, which comprises a mounting plate, a shell is arranged on the upper surface of a base, a UV (Ultraviolet) pre-fixed lamp is fixedly connected to the upper surface of the shell, a boss is arranged on the inner side of the UV pre-fixed lamp, a light-transmitting plate is arranged on the inner side of the boss, and a light-emitting diode (LED) lamp is arranged on the light-transmitting plate. Vacuum adsorption glass is arranged on the inner side of the light-transmitting plate, a pre-curing hole is formed in the outer side of the vacuum adsorption glass, and quartz glass is arranged on the surface of the pre-curing hole. Through the arrangement of the structure, the boss area in the middle of the suction nozzle piece is hollowed out and is not in contact with glass, and the quartz glass is additionally arranged above the pre-hollowed-out part, so that the risk that the glass is punctured due to the fact that foreign matter exists in the boss area is fundamentally eliminated, it is ensured that CG can be kept intact in the chip mounting process, and the chip mounting quality is improved. And the appearance quality and the internal structure integrity of the product are obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to silicon-based OLED patch process, and in particular to a new structure suction nozzle piece that prevents foreign objects from stabbing glass. Background Art

[0002] In the manufacturing process of silicon-based OLED, the patch process is a key link. This process aims to firmly bond CG (Cover Glass) and Wafer together through OCR glue to form the final product structure. In this process, the nozzle of the Bonding Head plays a vital role. It achieves accurate bonding between the two by making hard contact with the CG and applying appropriate pressure. Therefore, a new structure nozzle is particularly needed to prevent foreign objects from piercing the glass.

[0003] However, in the chip-mounting process of silicon-based OLED, the CG (Cover Glass) and the wafer are bonded together with OCR glue. The nozzle piece of the Bonding Head needs to be in hard contact with the CG for pressing. During this process, if there is foreign matter between the CG and the nozzle piece, it will cause damage to the CG and the nozzle piece, thus causing product defects.

[0004] Invention content

[0005] The purpose of the present invention is to provide a new structure suction nozzle piece to prevent foreign objects from piercing the glass in order to solve the above-mentioned problems and overcome the defects of the prior art, as described in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a new structure suction nozzle piece for preventing foreign objects from piercing glass, comprising a mounting plate, a shell installed on the upper surface of the base, a UV pre-curing lamp fixedly connected to the upper surface of the shell, a boss arranged on the inner side of the UV pre-curing lamp, a light-transmitting plate arranged on the inner side of the boss, vacuum adsorption glass arranged on the inner side of the light-transmitting plate, a pre-curing hole opened on the outer side of the vacuum adsorption glass, and quartz glass arranged on the surface of the pre-curing hole.

[0008] Preferably, the area of ​​the boss is hollowed out.

[0009] Preferably, the quartz glass is used for light transmission of the UV pre-curing lamp.

[0010] Preferably, the nozzle piece is designed with different sizes according to different product sizes.

[0011] Preferably, the nozzle piece only contacts the non-AA area of ​​the product.

[0012] Preferably, the nozzle piece is compatible with the existing Bonding head of the placement machine, and the method of switching the nozzle piece is consistent with the method of replacing the nozzle piece of the original old structure.

[0013] A new structure suction nozzle piece for preventing foreign objects from stabbing glass also includes the following steps:

[0014] Step 1: Turn off the power of the placement machine and ensure that the placement machine is in a safe shutdown state;

[0015] Step 2: Open the protective cover of the nozzle piece installation part of the bonding head and take out the original nozzle piece;

[0016] Step 3: Align the nozzle piece of the present invention designed according to the product size with the mounting interface of the bonding head, and slowly insert it to ensure that the nozzle piece is completely fitted with the mounting interface and is firmly connected;

[0017] Step 4: Close the protective cover of the nozzle installation area;

[0018] Step 5: Turn on the power of the placement machine and start the placement process;

[0019] Step 6: Place the CG (Cover Glass) and Wafer on the corresponding workbench and ensure their accurate positions;

[0020] Step 7: The Bonding Head moves to the top of the CG under program control, and the nozzle piece firmly holds the CG through vacuum adsorption force;

[0021] Step 8: The Bonding Head continues to move, accurately aligns the CG and Wafer, and bonds them with OCR glue

[0022] Step 9: During the bonding process, since the boss area in the middle of the nozzle piece is hollowed out and quartz glass is used for UV pre-curing lamp to transmit light, the glass will not be pierced by foreign objects in the boss area. At the same time, the nozzle piece only contacts the non-AA area of ​​the product, avoiding damage to the AA area.

[0023] The beneficial effects are:

[0024] Through the above structure setting, Figure 1 (Structure of the nozzle piece before transformation) and Figure 3 (Structure of the nozzle piece after modification) By comparison, it can be seen that the present invention fundamentally eliminates the risk of glass punctures caused by foreign objects in the boss area by hollowing out the boss area in the middle of the nozzle piece so that it does not contact the glass, and installing quartz glass above the pre-solidified cavity. This ensures that the CG (Cover Glass) can remain intact during the patch process, significantly improving the product's appearance quality and internal structural integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the front view of the nozzle piece before transformation;

[0027] Figure 2 This is a schematic diagram of the front structure of the nozzle piece after the transformation;

[0028] Figure 3 This is a schematic diagram of the top view of the nozzle piece before transformation;

[0029] Figure 4 This is a schematic diagram of the top view of the nozzle piece after modification.

[0030] In the figure: 1. base; 2. shell; 3. UV pre-curing lamp; 4. boss; 5. light-transmitting plate; 6. vacuum adsorption glass; 7. pre-curing hole; 8. quartz glass. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1-4, a new structure suction nozzle piece to prevent foreign objects from stabbing glass, includes a mounting plate 1, a shell 2 is installed on the upper surface of the base 1, a UV pre-curing lamp 3 is fixedly connected to the upper surface of the shell 2, a boss 4 is arranged on the inner side of the UV pre-curing lamp 3, a light-transmitting plate 5 is arranged on the inner side of the boss 4, a vacuum adsorption glass 6 is arranged on the inner side of the light-transmitting plate 5, a pre-curing hole 7 is opened on the outer side of the vacuum adsorption glass 6, and a quartz glass 8 is arranged on the surface of the pre-curing hole 7. Through the above structure, when in use, the mounting plate 1 serves as the basic supporting component of the entire structure, providing a stable installation position for the base 1, the shell 2 installed above the base 1 plays a role in protecting the internal components and providing an installation position for the UV pre-curing lamp 3, the vacuum adsorption glass 6 is used to adsorb CG, in the patch process, by forming a vacuum environment thereunder, the CG is firmly adsorbed on the surface of the vacuum adsorption glass 6 by using the air pressure difference, and the pre-curing hole 7 is to allow UV light to pass through and reach the glue bonding area in the subsequent UV pre-curing process. When the UV pre-curing lamp 3 emits UV light, the light passes through The light is irradiated to the glue area through the pre-curing hole 7 to promote the curing of the glue. The light-transmitting plate 5 is located on the inner side of the boss 4, which plays a role in further guiding the light. When the light emitted by the UV pre-curing lamp 3 passes through the boss 4, the light-transmitting plate 5 can make the light more evenly distributed on the inner side of the vacuum adsorption glass 6, ensuring that the glue can be evenly irradiated with UV light, thereby achieving a better curing effect. Although the boss 4 may be a factor causing glass puncture in the traditional suction nozzle plate structure, in the structure here, after being improved, components such as the light-transmitting plate 5 are arranged inside. The boss 4 itself plays a certain supporting and positioning role in the structure to ensure the relative position of the internal components is stable. At the same time, its existence also provides a certain space and path guidance for the propagation and distribution of light. The UV pre-curing lamp 3 is the light source of the entire curing process. It emits UV light of a specific wavelength. After passing through the boss 4, the light-transmitting plate 5 and the pre-curing hole 7 and other components, the light is irradiated to the glue area, triggering a chemical reaction of the glue, causing it to cure quickly, thereby achieving a firm bond between the CG and the Wafer.

[0034] Furthermore, the area of ​​the boss 4 is hollowed out. Through the setting of the boss 4, when in use, although the boss 4 may be a factor causing glass punctures in the traditional suction nozzle plate structure, in the structure here, it is improved and components such as the light-transmitting plate 5 are set inside. The boss 4 itself plays a certain supporting and positioning role in the structure, ensuring the relative position stability of the internal components. At the same time, its existence also provides a certain space and path guidance for the propagation and distribution of light.

[0035] Furthermore, the quartz glass 8 is used for UV pre-curing lamp light transmission. Through the arrangement of the quartz glass 8, when in use, the quartz glass 8 is arranged on the surface of the pre-curing hole 7, and it has good UV light transmittance. Its function is to ensure that UV light can be effectively transmitted while preventing foreign matter from entering the internal structure from the pre-curing hole 7, avoiding damage to internal components and products, especially preventing foreign matter from contacting the vacuum adsorption glass 6 and causing glass punctures.

[0036] Furthermore, the nozzle pieces are designed with different sizes according to the different sizes of products. Through the above structure, when in use, the nozzle pieces of different sizes are designed to better match the AA area (lit display area) of different products. Since the sizes and shapes of products may vary, the nozzle pieces need to be designed according to the specific sizes of the products to ensure that the nozzle pieces only contact the non-AA area of ​​the product during the patch process, thereby avoiding damage to the AA area.

[0037] Furthermore, the nozzle piece only contacts the non-AA area of ​​the product. Through the above structure, when in use, the nozzle piece is designed to only contact the non-AA area of ​​the product. This is to fundamentally avoid any damage to the AA area (lit display area). The AA area is the key display area of ​​the product. Any slight damage may cause product performance degradation or failure. By precisely designing the shape and size of the nozzle piece, its edge is adapted to the edge of the non-AA area of ​​the product, ensuring that the nozzle piece will not contact the AA area during the patch process.

[0038] Furthermore, the nozzle piece is compatible with the current Bonding head of the placement machine, and the method of switching the nozzle piece is consistent with the original method of replacing the nozzle piece with the old structure. Through the above structure, when in use, the method of switching the nozzle piece is consistent with the original method of replacing the nozzle piece with the old structure, which allows operators to master the replacement operation of the new nozzle piece without additional training. Whether it is removing the original nozzle piece or installing a new nozzle piece, the operating steps, tools used and precautions are the same as before.

[0039] Example 2

[0040] A new structure suction nozzle piece for preventing foreign objects from stabbing glass also includes the following steps:

[0041] Step 1: Turn off the power of the placement machine and ensure that the placement machine is in a safe shutdown state;

[0042] Step 2: Open the protective cover of the nozzle piece installation part of the bonding head and take out the original nozzle piece;

[0043] Step 3: Align the nozzle piece of the present invention designed according to the product size with the mounting interface of the bonding head, and slowly insert it to ensure that the nozzle piece is completely fitted with the mounting interface and is firmly connected;

[0044] Step 4: Close the protective cover of the nozzle installation area;

[0045] Step 5: Turn on the power of the placement machine and start the placement process;

[0046] Step 6: Place the CG Cover Glass and Wafer on the corresponding workbench and ensure their accurate positions;

[0047] Step 7: The Bonding Head moves to the top of the CG under program control, and the nozzle piece firmly holds the CG through vacuum adsorption force;

[0048] Step 8: The Bonding Head continues to move, accurately aligns the CG and Wafer, and bonds them with OCR glue

[0049] Step 9: During the bonding process, since the boss area in the middle of the nozzle piece is hollowed out and quartz glass is used for UV pre-curing lamp to transmit light, the glass will not be pierced by foreign objects in the boss area. At the same time, the nozzle piece only contacts the non-AA area of ​​the product, avoiding damage to the AA area.

[0050] Embodiment 3:

[0051] A new structure of suction nozzle to prevent foreign objects from piercing the glass, according to the size requirements of different products, accurately measures and analyzes the relevant dimensional parameters of the product, including the length, width, thickness of the product, and the boundary dimensions of the AA area and non-AA area, etc. Based on these measurement data, the optimal size range of the suction nozzle contacting the non-AA area of ​​the product is calculated.

[0052] Carry out detailed mechanical design of the connection part between the nozzle piece and the bonding head of the placement machine, and design a locking mechanism for the connection interface to ensure that the nozzle piece can be firmly fixed on the bonding head after installation and will not loosen due to vibration or movement of the machine. For example, a connection structure with threads and slots is adopted, and the nozzle piece is screwed into the interface of the bonding head through the threads and further locked through the slots.

[0053] Actual tests were conducted on the production line, and the loss rate of patch punctures was recorded to be 12.3% before improvement, and 0% after improvement, and the yield rate was increased by 4.8%. At the same time, the downtime of the patch machine was recorded to be 35h / month before improvement, and 0h / month after improvement.

[0054] Working principle: The present invention hollows out the boss area in the middle of the nozzle piece so that it does not contact the glass, and installs a quartz glass design above the pre-hollowed-out area, which fundamentally eliminates the risk of glass puncture caused by foreign matter in the boss area, thus ensuring CG (Cover Glass) can remain intact during the patch process, which significantly improves the appearance quality and internal structure integrity of the product. Since the glass puncture problem is effectively avoided, the product defect rate is greatly reduced. As shown in the embodiment, the patch puncture loss rate was 12.3% before improvement, and after adopting the suction nozzle piece of the present invention, the patch puncture loss rate is reduced to 0%, and the yield rate is improved by 4.8%, which enables more products to meet the quality standards and reduces the waste of resources and cost increase caused by defective products. Traditional suction nozzle pieces are defective due to foreign body punctures, and often need to be shut down for maintenance and adjustment, which seriously affects the production efficiency. The suction nozzle piece structure of the present invention effectively solves this problem. Before improvement, the downtime of the patch machine was 35h / month, and after using the present invention, the downtime is reduced to 0h / month, which enables the patch machine to operate continuously and stably, improves the utilization rate of production equipment, and thus increases the output of products. The suction nozzle piece of the present invention is bonded to the existing bonding machine of the patch machine. head is compatible, and the method of switching the suction nozzle piece is consistent with the replacement method of the original old structure suction nozzle piece, which means that operators can easily replace the suction nozzle piece without additional training and complicated equipment adjustments, which simplifies the production operation process and further improves production efficiency. With the improvement of product yield and production efficiency, the production cost is significantly reduced. On the one hand, it reduces the waste of raw materials, maintenance costs and labor costs caused by defective products; on the other hand, it improves the production capacity of the equipment and reduces the fixed cost allocation per unit product, thereby achieving effective control of production costs.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new structure suction nozzle piece for preventing foreign objects from stabbing glass, comprising a mounting plate (1), characterized in that: A housing (2) is installed on the upper surface of the base (1); a UV pre-curing lamp (3) is fixedly connected to the upper surface of the housing (2); a boss (4) is arranged on the inner side of the UV pre-curing lamp (3); a light-transmitting plate (5) is arranged on the inner side of the boss (4); a vacuum adsorption glass (6) is arranged on the inner side of the light-transmitting plate (5); a pre-curing hole (7) is opened on the outer side of the vacuum adsorption glass (6); and a quartz glass (8) is arranged on the surface of the pre-curing hole (7).

2. According to claim 1, a new structure nozzle piece for preventing foreign objects from stabbing glass is characterized by: The area of ​​the boss (4) is hollowed out.

3. According to claim 1, a new structure nozzle piece for preventing foreign matter from stabbing glass is characterized in that: The quartz glass (8) is used for light transmission of the UV pre-curing lamp.

4. According to claim 1, a new structure nozzle piece for preventing foreign matter from stabbing glass is characterized by: The suction nozzle piece is designed with different size suction nozzle pieces according to different product sizes.

5. According to claim 1, a new structure nozzle piece for preventing foreign matter from stabbing glass is characterized in that: The nozzle piece only contacts the non-AA area of ​​the product.

6. The new structure nozzle piece for preventing foreign matter from stabbing glass according to claim 1 is characterized in that: The nozzle piece is compatible with the current Bonding head of the placement machine, and the method of switching the nozzle piece is consistent with the method of replacing the nozzle piece of the original old structure.

7. A new structure nozzle piece to prevent foreign matter from stabbing the glass, characterized by: The method of using a nozzle piece with a new structure to prevent foreign objects from stabbing glass as described in any one of claims 1 to 6 further includes the following steps: Step 1: Turn off the power of the placement machine and ensure that the placement machine is in a safe shutdown state; Step 2: Open the protective cover of the nozzle piece installation part of the bonding head and take out the original nozzle piece; Step 3: Align the nozzle piece of the present invention designed according to the product size with the mounting interface of the bonding head, and slowly insert it to ensure that the nozzle piece is completely fitted with the mounting interface and is firmly connected; Step 4: Close the protective cover of the nozzle installation area; Step 5: Turn on the power of the placement machine and start the placement process; Step 6: Place the CG (Cover Glass) and Wafer on the corresponding workbench and ensure their accurate positions; Step 7: The Bonding Head moves to the top of the CG under program control, and the nozzle piece firmly holds the CG through vacuum adsorption force; Step 8: The Bonding Head continues to move, accurately aligns the CG and Wafer, and bonds them with OCR glue Step 9: During the bonding process, since the boss area in the middle of the nozzle piece is hollowed out and quartz glass is used for UV pre-curing lamp to transmit light, the glass will not be pierced by foreign objects in the boss area. At the same time, the nozzle piece only contacts the non-AA area of ​​the product, avoiding damage to the AA area.

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