Dispensing method and device and storage medium
By retracting the dispensing gun in an oblique path, the problem of high viscosity colloidal rubber wire scattering is solved, and the precise drop of the rubber wire is achieved, which improves production efficiency and process consistency and reduces equipment maintenance costs.
Patent Information
- Application Number
- CN202510573838.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2025-07-08
AI Technical Summary
During the dispensing process, the glue wires of high viscosity colloids are easily scattered, resulting in a decrease in product yield, poor process consistency and reduced equipment reliability. The prior art solves this problem by extending the residence time but affects efficiency.
采用斜向路径收回点胶枪,通过点胶装置的升降组件和水平移动组件协同运动,使胶丝沿斜向路径自然落回划线路径,避免胶丝在空气中飞散。
Effectively avoid rubber wire contaminating non-target areas and adjacent components of the substrate, reducing equipment cleaning needs, shortening dispensing cycles, improving process consistency and production efficiency, and reducing maintenance costs.
Smart Images
Figure CN120268622A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of semiconductor packaging, and particularly to a dispensing method, device, and storage medium. Background Art
[0002] In the fields of electronic manufacturing, semiconductor packaging, etc., curing adhesives are widely used due to their characteristics such as rapid curing and high bonding strength. However, curing adhesives, especially UV curing adhesives, usually have a relatively high viscosity, and it is easy to produce a trailing phenomenon during the dispensing process due to the viscous effect between the colloid and the dispensing gun. In the prior art, after the dispensing gun completes the scribing operation on the substrate, it usually retracts from the substrate surface in a vertical retraction manner. Due to the poor fluidity of the high-viscosity colloid, when the dispensing gun quickly detaches in the vertical direction, the colloid is difficult to break instantaneously, resulting in the stretching of the glue filaments and flying into the air along the movement direction of the dispensing gun. This glue filament flying phenomenon will cause the following problems: the flying glue filaments may adhere to non-target areas of the substrate or adjacent components, resulting in a decrease in product yield; the random distribution of the glue filaments may interfere with subsequent curing or assembly processes, affecting the overall process consistency; additional cleaning steps are required to remove the flying glue filaments, increasing production time and cost; the accumulation of glue filaments may clog equipment components, such as camera lenses, motion guides, etc., reducing equipment reliability. In the prior art, to solve the glue filament problem, the retraction speed is usually reduced, specifically, staying for about two seconds after the scribing dispensing is completed, which will obviously extend the production cycle. Therefore, how to solve the problem of flying glue filaments of high-viscosity colloids without sacrificing efficiency has become a technical difficulty that needs to be broken through in this field. Summary of the Invention
[0003] To solve the above technical problems, this application provides a dispensing method, including the following steps: Control the dispensing gun to perform scribing dispensing on the substrate along a preset path, and the preset path includes a downward path and a scribing path; After the scribing dispensing is completed, control the dispensing gun to retract along an oblique path, and the included angle between the oblique path and the scribing path is an acute angle, and the downward path, the scribing path, and the oblique path are coplanar, so that the glue filaments generated during the retraction of the dispensing gun fall on the position of the scribing path, avoiding the random flying of the glue filaments in the air.
[0004] Preferably, the retraction of the dispensing gun along the oblique path is achieved by the coordinated movement of the lifting component and the horizontal movement component of the dispensing device.
[0005] Preferably, the coordinated movement of the lifting component and the horizontal movement component of the dispensing device to achieve includes: The lifting component controls the dispensing gun to gradually rise in the vertical direction; The horizontal movement component controls the dispensing gun to move in the horizontal direction; The lifting component and the horizontal moving component move synchronously, causing the dispensing gun to retract along an oblique path.
[0006] Preferably, the retraction angle of the oblique path is 30° to 60°, and the size of the retraction angle of the oblique path is controlled by adjusting the ratio of the rising speed of the lifting component to the moving speed of the horizontal moving component.
[0007] Preferably, the retraction angle of the oblique path is 45°.
[0008] Preferably, during the retraction of the dispensing gun, the movement trajectory of the dispensing gun is monitored in real time through the camera component to ensure the accuracy of the oblique path.
[0009] This application also provides a dispensing device, including: A motion execution mechanism configured with a lifting component and a horizontal moving component; A dispensing component fixed to the end of the motion execution mechanism, including a dispensing gun and a vision positioning module, and a fixed spatial relationship is maintained between the glue outlet of the dispensing gun and the observation focus of the vision positioning module; A control module including a memory and a processor. A computer program is stored in the memory, and when the processor calls the computer program in the memory, the steps of the above-mentioned dispensing method are implemented.
[0010] This application also provides a storage medium in which computer-executable instructions are stored. When the computer-executable instructions are loaded and executed by a processor, the steps of the above-mentioned dispensing method are implemented.
[0011] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. By controlling the retraction of the dispensing gun along an oblique path, the glue filaments naturally fall back to the target position of the scribing path during retraction, avoiding the problem of glue filaments adhering to non-target areas of the substrate or adjacent components, significantly reducing the yield loss caused by glue filament contamination, and at the same time reducing the risk of glue filament accumulation on key components such as the vision positioning module and the motion execution mechanism, extending the equipment cleaning cycle, and reducing maintenance costs and downtime; 2. Compared with the prior art solution of reducing glue filament scattering by extending the residence time, the oblique path retraction of this application does not require additional residence. While ensuring the accurate fall-back of the glue filaments, it shortens the single dispensing cycle, optimizes production efficiency, and reduces time costs; 3. The design of the oblique path being coplanar with the scribing path and forming an acute angle, combined with the coordinated motion control of the lifting component and the horizontal moving component, ensures the regularity and controllability of the glue filament tail, reduces the interference of random glue filament distribution on subsequent curing and assembly processes, and improves process consistency; 4. Strong compatibility and easy to implement. This solution realizes the oblique retraction based on the lifting and horizontal movement mechanisms of the existing dispensing device, without the need for complex modification, reducing the cost of technology upgrade. At the same time, it is applicable to the high-viscosity curing glue dispensing process in various scenarios such as semiconductor packaging and electronic manufacturing.
[0012] This application also provides a dispensing device and a storage medium, which also have the above beneficial effects and will not be elaborated here. Description of the Drawings
[0013] To more clearly illustrate the embodiments of this application, the following will briefly introduce the drawings required for the embodiments. Obviously, the drawings described below are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0014] Figure 1 is the dispensing path diagram of the dispensing method provided by the embodiment of this application; Figure 2 is the dispensing path diagram of the existing dispensing method; Figure 3 is the schematic diagram of the dispensing device provided by the embodiment of this application.
[0015] In the figure: 1. Motion execution mechanism; 11. Lifting component; 12. Horizontal movement component; 2. Dispensing component; 100. Downward path; 200. Scratching path; 300. Oblique path. Detailed Embodiments
[0016] The following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the drawings of this application. Obviously, the embodiments described in this application are only some embodiments of this application, rather than all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.
[0017] The dispensing method includes the following steps: Please refer to Figure 1 , Figure 1 is the dispensing path diagram of the dispensing method of this application. Control the dispensing gun to perform scribing dispensing on the substrate along the preset path. The preset path includes a downward path 100 and a scribing path 200; After the scribing dispensing is completed, control the dispensing gun to retract along the oblique path 300. The angle between the oblique path 300 and the scribing path 200 is an acute angle, and the downward path 100, the scribing path 200, and the oblique path 300 are coplanar, so that the glue filaments generated during the retraction of the dispensing gun fall on the position of the scribing path 200, avoiding the glue filaments flying randomly in the air.
[0018] Among them, the retraction of the oblique path 300 of the dispensing gun is realized by the coordinated movement of the lifting assembly 11 and the horizontal movement assembly 12 of the dispensing device. The coordinated movement of the lifting assembly 11 and the horizontal movement assembly 12 of the dispensing device includes: the lifting assembly 11 controls the dispensing gun to gradually rise in the vertical direction; the horizontal movement assembly 12 controls the dispensing gun to move in the horizontal direction; the lifting assembly 11 and the horizontal movement assembly 12 move synchronously, so that the dispensing gun retracts along the oblique path 300.
[0019] Specifically, the retraction angle of the oblique path 300 is the angle between the oblique path 300 and the scribing path 200. The retraction angle of the oblique path 300 is preferably 30° to 60°, and the size of the retraction angle of the oblique path 300 is controlled by adjusting the ratio of the rising speed of the lifting assembly 11 to the moving speed of the horizontal movement assembly 12. In this embodiment, the retraction angle of the oblique path 300 is 45°.
[0020] Specifically, during the retraction of the dispensing gun, the movement trajectory of the dispensing gun is monitored in real time through the camera assembly to ensure the accuracy of the oblique path 300.
[0021] Please refer to Figure 2 , Figure 2 is the dispensing path diagram of the existing dispensing method. Different from the present application, the path of the dispensing gun in the existing dispensing method usually directly moves upward to complete the retraction of the dispensing gun after scribing and dispensing on the substrate along the preset downward path 100 and scribing path 200, which will cause the glue filaments to fly randomly; to solve this problem, currently, most methods use the method of making the dispensing gun stay for a certain time to reduce the situation of glue filaments flying randomly. The staying time is generally about two seconds, but this will obviously extend the single dispensing cycle and ultimately affect the processing efficiency. Please refer to Figure 1 , in the present application, after the scribing dispensing is completed, control the dispensing gun to retract along the oblique path 300. Since the angle between the oblique path 300 and the scribing path 200 is an acute angle, and the downward path 100, the scribing path 200, and the oblique path 300 are coplanar, the glue filaments generated during the retraction of the dispensing gun can fall on the position of the scribing path 200, thereby controlling the landing point of the glue filaments and further avoiding the glue filaments flying randomly in the air and causing pollution.
[0022] Please refer toFigure 3 , this application also provides a dispensing device, including: A motion execution mechanism 1, configured with a lifting component 11 and a horizontal movement component 12; A dispensing component 2, fixed to the end of the motion execution mechanism 1, including a dispensing gun and a vision positioning module, and a fixed spatial relationship is maintained between the glue outlet of the dispensing gun and the observation focus of the vision positioning module; A control module, including a memory and a processor. A computer program is stored in the memory, and when the processor calls the computer program in the memory, the steps of the above-mentioned dispensing method are implemented.
[0023] This application also provides a storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are loaded and executed by a processor, the steps of the above-mentioned dispensing method are implemented. The storage medium may include: various media that can store program codes such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs.
[0024] In summary, the dispensing method, device, and storage medium provided by this application can significantly improve the dispensing efficiency and process consistency while avoiding the scattering of glue filaments through the design of retracting along an oblique path. Specifically, it is manifested as follows: the glue filaments precisely fall back to the scribing path 200, reducing the substrate contamination and the need for equipment maintenance; the coordinated movement of the lifting component 11 and the horizontal movement component 12 does not require additional residence time, shortening the single dispensing cycle; the coplanar acute angle design of the oblique path 300 combined with real-time trajectory monitoring ensures that the ending of the glue filaments is regularly controllable, and the solution is compatible with most existing dispensing devices and can meet the industrial application requirements of curing glue without complex modification.
[0025] It should also be noted that in this specification, the terms "including", "comprising", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article, or device. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device including the said element.
Claims
1. A dispensing method, characterized in that, It includes the following steps: Control the dispensing gun to perform scribing and dispensing on the substrate along a preset path, and the preset path includes a downward path and a scribing path; After the scribing and dispensing are completed, control the dispensing gun to retract along an oblique path, and the angle between the oblique path and the scribing path is an acute angle, and the downward path, the scribing path and the oblique path are coplanar, so that the glue filaments generated during the retraction of the dispensing gun fall on the position of the scribing path, avoiding the glue filaments flying randomly in the air.
2. The dispensing method according to claim 1, characterized in that, The retraction of the oblique path of the dispensing gun is realized by the coordinated movement of the lifting component and the horizontal movement component of the dispensing device.
3. The dispensing method according to claim 2, characterized in that, The coordinated movement of the lifting component and the horizontal movement component of the dispensing device to realize includes: The lifting component controls the dispensing gun to gradually rise in the vertical direction; The horizontal movement component controls the dispensing gun to move in the horizontal direction; The lifting component and the horizontal movement component move synchronously to make the dispensing gun retract along the oblique path.
4. The dispensing method according to claim 2 or 3, characterized in that, The retraction angle of the oblique path is 30° to 60°, and the size of the retraction angle of the oblique path is controlled by adjusting the ratio of the rising speed of the lifting component to the moving speed of the horizontal movement component.
5. The dispensing method according to claim 4, wherein, The retraction angle of the oblique path is 45°.
6. The dispensing method according to claim 1, wherein During the retraction of the dispensing gun, the movement trajectory of the dispensing gun is monitored in real time through the camera component to ensure the accuracy of the oblique path.
7. Dispensing device, characterized in that, It includes: A motion execution mechanism configured with a lifting component and a horizontal movement component; A dispensing component fixed to the end of the motion execution mechanism, including a dispensing gun and a vision positioning module, and a fixed spatial relationship is maintained between the glue outlet of the dispensing gun and the observation focus of the vision positioning module; A control module including a memory and a processor, and a computer program is stored in the memory. When the processor calls the computer program in the memory, the steps of the dispensing method according to any one of claims 1 to 6 are realized.
8. A storage medium, characterized in that, Computer-executable instructions are stored in the storage medium, and when the computer-executable instructions are loaded and executed by the processor, the steps of the dispensing method according to any one of claims 1 to 6 are realized.