Integrated circuit post-screening surface dotting device and its use method

Abstract

The present invention relates to the technical field of integrated circuit production, and specifically discloses a device for dotting the surface of integrated circuits after screening, comprising a motor, the motor being arranged at the upper end of a slide rail slider fixed vertical plate, the lower end of the slide rail slider fixed vertical plate being provided with a lower synchronous wheel adjustment block, the lower synchronous wheel adjustment block being provided with a lower synchronous wheel, the motor being connected to an upper synchronous wheel, a synchronous belt being installed between the upper synchronous wheel and the lower synchronous wheel, a slide rail slider being installed on the slide rail slider fixed vertical plate, a component fixing plate being slidably installed on the slide rail slider, the component fixing plate being fixed to one side of the synchronous belt by a synchronous belt buckle, a dotting pen mechanism being installed on the outer side of the component fixing plate, the dotting pen mechanism including a dotting pen, and the synchronous belt being able to drive the component fixing plate to move along the slide rail slider when the synchronous belt moves, thereby driving the dotting pen to move to dot the surface of the integrated circuit. The present invention also discloses a method for using the device for dotting the surface of integrated circuits after screening. The present invention can significantly improve dotting efficiency and quality.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuit production, and more particularly to a surface dotting device for integrated circuits after screening and a method for using the surface dotting device for integrated circuits after screening. Background Art

[0002] With the improvement of the quality of military and high-end civilian ICs, IC devices that fail screening are marked. Traditional IC component marking is done manually. Manual operation has the following three disadvantages, especially for small-package IC devices: 1. The dot position is not uniform; 2. The dot roundness is not enough; 3. The dot efficiency is low. The above three points not only make the marking unsightly, but also affect the screening quality.

[0003] In particular, the rapid development of automotive electronics in recent years has continuously placed new and stringent demands on ICs. Since these products are often used in large quantities, IC marking operations require both quality and efficiency. Automated marking not only delivers high quality but also five times the efficiency of manual operations. Therefore, promoting automated marking not only improves marking quality but also significantly reduces labor requirements, significantly improving both efficiency and quality while avoiding wasted labor. Summary of the Invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a surface dotting device for integrated circuits after screening and a method for using the same, which can significantly improve dotting efficiency and quality while reducing the labor requirements of enterprises.

[0005] As a first aspect of the present invention, a surface dotting device for integrated circuits after screening is provided, comprising a motor, wherein the motor is arranged at the upper end of a slide rail slider fixing vertical plate, a lower synchronous wheel adjustment block is provided at the lower end of the slide rail slider fixing vertical plate, a lower synchronous wheel is provided on the lower synchronous wheel adjustment block, an upper synchronous wheel is connected to the motor shaft of the motor, a synchronous belt is installed between the upper synchronous wheel and the lower synchronous wheel, a slide rail slider is installed on the slide rail slider fixing vertical plate, a component fixing plate is slidably installed on the slide rail slider, the component fixing plate is fixed to one side of the synchronous belt by a synchronous belt buckle, a dotting pen mechanism is installed on the outer side of the component fixing plate, the dotting pen mechanism includes a dotting pen, and when the synchronous belt moves, it can drive the component fixing plate to move along the slide rail slider, thereby driving the dotting pen to move to dot the surface of the integrated circuit.

[0006] Furthermore, the dotting pen mechanism also includes a compression spring slide slider, a compression spring holder, a compression spring, a compression spring fixed lower seat, a dotting pen fixing part, a pressure block slide slider fixing part, a pressure block slide slider and a pressure block. The compression spring slide slider and the compression spring holder are respectively arranged at the lower part of the component fixing plate, the compression spring fixed lower seat is slidably installed on the compression spring slide slider, a compression spring is arranged between the compression spring holder and the compression spring fixed lower seat, the pressure block slide slider fixing part is arranged on the outside of the compression spring fixed lower seat, the pressure block slide slider is arranged on the pressure block slide slider fixing part, the pressure block is arranged on the pressure block slide slider, the dotting pen fixing part is installed on the compression spring fixed lower seat, and the dotting pen is installed inside the dotting pen fixing part.

[0007] Furthermore, an upper tension spring hook is installed on the upper part of the vertical plate fixing the slide rail slider, a lower tension spring hook is provided on the component fixing plate, and a tension spring is provided between the upper tension spring hook and the lower tension spring hook.

[0008] Furthermore, an origin sensor for detecting the initial position of the motor is installed on the upper part of the fixed vertical plate of the slide rail slider, and the origin sensor is located below the upper tension spring hook.

[0009] Furthermore, the lower end of the pressing block is U-shaped, and the dotting pen is used to dot a designated position on the surface of the integrated circuit through the U-shaped opening.

[0010] As a second aspect of the present invention, a method for using the surface dotting device after integrated circuit screening is provided, which is applied to the aforementioned surface dotting device after integrated circuit screening. The method for using the surface dotting device after integrated circuit screening comprises:

[0011] The rotation of the motor drives the synchronous belt to move, and when the synchronous belt moves, it can drive the component fixing plate to move along the slide rail, and then drive the dotting pen to move to dot the surface of the integrated circuit.

[0012] Furthermore, it also includes: achieving constant force contact and tapping on the surface of the integrated circuit through the compression rebound force of the compression spring itself.

[0013] Furthermore, the method further includes: ensuring that the pressing block is always in the lower position when the dotting device is working by the self-weight of the pressing block, thereby achieving downward pressing and fixing of the surface of the integrated circuit.

[0014] The integrated circuit post-screening surface dotting device and its use method provided by the present invention have the following advantages: the motor drives the pulley to move, driving the dotting pen to dot the surface of the integrated circuit, and the automatic dotting mechanism can be used efficiently; it also has the advantages of ingenious structure, stability, durability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation of the present invention.

[0016] Figure 1 This is a schematic diagram of the exploded structure of the integrated circuit post-screening surface dotting device of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the integrated circuit post-screening surface dotting device of the present invention.

[0018] In the figure: 1-motor; 2-slide rail slider fixing vertical plate; 3-lower synchronous wheel adjustment block; 4-lower synchronous wheel; 5-upper synchronous wheel; 6-synchronous belt; 7-synchronous belt buckle; 8-origin sensor; 9-slide rail slider; 10-assembly fixing plate; 11-upper tension spring hook; 12-tension spring; 13-lower tension spring hook; 14-compression spring slide rail slider; 15-compression spring holder; 16-compression spring; 17-compression spring fixed lower seat; 18-dotting pen; 19-dotting pen fixing part; 20-pressure block slide rail slider fixing part; 21-pressure block slide rail slider; 22-pressure block. DETAILED DESCRIPTION

[0019] To further illustrate the technical means and effectiveness of the present invention in achieving its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, describes in detail the specific implementation, structure, features, and effectiveness of the integrated circuit post-screening surface dotting device and its method of use according to the present invention. It should be understood that the described embodiments are only a subset of the embodiments of the present invention, and are not exhaustive. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0020] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0021] In the context of this invention, it should be noted that the terms "installed," "connected," and "connected" should be interpreted broadly, unless otherwise specified. For example, a connection can be a fixed connection, a connection via a specific interface, or an indirect connection via an intermediary. Those skilled in the art will understand the specific meanings of these terms in this invention on a case-by-case basis.

[0022] In this embodiment, a device for marking the surface of an integrated circuit after screening is provided. Figure 1-2 As shown, the surface dotting device after integrated circuit screening includes a motor 1, which is arranged at the upper end of the slide rail slider fixing vertical plate 2, and the lower end of the slide rail slider fixing vertical plate 2 is provided with a lower synchronous wheel adjustment block 3, and the lower synchronous wheel adjustment block 3 is provided with a lower synchronous wheel 4, the motor shaft of the motor 1 is connected with an upper synchronous wheel 5, and a synchronous belt 6 is installed between the upper synchronous wheel 5 and the lower synchronous wheel 4, and the synchronous belt 6 is straightened by adjusting the lower synchronous wheel adjustment block 3, and the slide rail slider 9 is installed on the slide rail slider 9. A component fixing plate 10 is slidably installed on the slide rail slider 9, and the component fixing plate 10 is fixed to one side of the synchronous belt 6 through a synchronous belt buckle 7. A dotting pen mechanism is installed on the outer side of the component fixing plate 10, and the dotting pen mechanism includes a dotting pen 18. When the synchronous belt 6 moves, it can drive the component fixing plate 10 to move along the slide rail slider 9, and then drive the dotting pen 18 to move to dot the surface of the integrated circuit.

[0023] Preferably, the dotting pen mechanism also includes a compression spring slide slider 14, a compression spring holder 15, a compression spring 16, a compression spring fixed lower seat 17, a dotting pen fixing part 19, a pressure block slide slider fixing part 20, a pressure block slide slider 21 and a pressure block 22. The compression spring slide slider 14 and the compression spring holder 15 are respectively arranged at the lower part of the component fixing plate 10, and the compression spring fixed lower seat 17 is slidably installed on the compression spring slide slider 14. A compression spring 16 is arranged between the compression spring holder 15 and the compression spring fixed lower seat 17. The pressure block slide slider fixing part 20 is arranged on the outside of the compression spring fixed lower seat 17, the pressure block slide slider 21 is arranged on the pressure block slide slider fixing part 20, and the pressure block 22 is arranged on the pressure block slide slider 21. The dotting pen fixing part 19 is installed on the compression spring fixed lower seat 17, and the dotting pen 18 is installed inside the dotting pen fixing part 19.

[0024] Preferably, an upper tension spring hook 11 is installed on the upper part of the vertical plate 2 of the slide rail slider, and a lower tension spring hook 13 is provided on the component fixing plate 10, and a tension spring 12 is provided between the upper tension spring hook 11 and the lower tension spring hook 13 to ensure that the dotting pen mechanism fixed on the component fixing plate 10 can always remain in the upper position when the motor 1 is powered off, that is, the dotting pen 18 and the pressure block 22 will not remain in the lower position under gravity, preventing mechanical damage to the dotting pen 18, the pressure block 22 and related mechanisms and damage to the integrated circuit, thereby avoiding unnecessary quality accidents.

[0025] Preferably, an origin sensor 8 for detecting the initial position of the motor 1 is installed on the upper portion of the slide rail slider fixing vertical plate 2 , and the origin sensor 8 is located below the upper tension spring hook 11 .

[0026] Preferably, the lower end of the pressing block 22 is U-shaped, and the dotting pen 18 is used to dot a designated position on the surface of the integrated circuit through the U-shaped opening.

[0027] Specifically, the dotting pen fixing member 19 is locked by screws to fix the dotting pen 18.

[0028] Specifically, the dotting pen 18 is a paint pen, a quick-drying paint pen, and the refill portion needs to have a retractable function. Its characteristic is that it can quickly leave an indelible mark on the surface of the device after dotting.

[0029] It should be noted that the dotting pen 18 requires two parts to complete its dotting function: one part is the motor movement, and the other part is the dotting pressure block. The forward and reverse rotation of the motor 1 drives the component fixing plate 10 up and down, thereby driving the dotting pen 18 up and down. When dotting the surface of an integrated circuit, the integrated circuit needs to be positioned and fixed. The pressure block 22, under the action of its own gravity, fixes the position of the dotted device, that is, the device will not move during and after the dotting process. In addition, the integrated circuit will not move after the dotting pen is done because the dotting pen is a paint pen and sticks.

[0030] The working principle of the integrated circuit screening rear surface dotting device provided by the present invention is as follows: when the motor 1 is reversed, the synchronous belt 6 carries the component fixing plate 10 to move downward along the slide block 9. When the component fixing plate 10 moves downward, the compression spring slide block 14 and the compression spring holder 15 fixed on the component fixing plate 10 also move downward together. The compression spring fixed lower seat 17 moves downward along the compression spring slide block 14 under the action of gravity. The compression spring 16 is stretched, and the pressure block slide block fixing part 20 and the dotting pen fixing part 19 fixed on the compression spring fixed lower seat 17 also move downward together. During the downward movement of the pressure block slide block fixing part 20, the pressure is driven by the pressure block slide block 21. The blocks 22 move downward together, and at the same time, the pressure block 22 plays a role in fixing the dotting position of the integrated circuit under the action of its own gravity. The dotting pen 18 is fixed inside the dotting pen fixing part 19. During the downward movement of the dotting pen fixing part 19, the dotting pen 18 automatically dots the surface of the integrated circuit through the U-shaped opening at the lower end of the pressure block 22. After this dotting, the motor 1 stops rotating, and the compression spring 16 drives the dotting pen 18 to move slightly upward under the action of its own compression rebound force, and this dotting is completed; when the motor 1 rotates forward, the synchronous belt 6 carries the component fixing plate 10 to move upward along the slide rail slider 9, thereby driving the dotting pen mechanism to move upward, and the dotting device returns to its original position.

[0031] In an embodiment of the present invention, the integrated circuit post-screening surface dotting device is connected to a transplanting arm, which drives the integrated circuit post-screening surface dotting device to guide the dotting pen to dot a designated position on the surface of the integrated circuit.

[0032] It should be understood that the various components in the integrated circuit post-screening surface dotting device cooperate with each other to achieve dotting at specified positions on the integrated circuit and ensure the consistency of dotting on the surfaces of multiple integrated circuits, including: dot roundness, dot position, dot size, etc.

[0033] Specifically, the motor 1 cooperates with the synchronous wheel and the synchronous belt to drive the dotting pen and the dotting pressure block to work in coordination with each other, thereby performing dotting operations on designated positions on the surface of the integrated circuit.

[0034] As another embodiment of the present invention, a method for using a device for dotting the surface of an integrated circuit after screening is provided, which is applicable to any of the device for dotting the surface of an integrated circuit after screening described above. The method for using the device for dotting the surface of an integrated circuit after screening includes: driving the synchronous belt 6 to move by the rotation of the motor 1, and when the synchronous belt 6 moves, it can drive the component fixing plate 10 to move along the slide rail slider 9, and then drive the dotting pen 18 to move to dot the surface of the integrated circuit.

[0035] It should be noted that before starting dotting, it is first necessary to ensure that the various components of the dotting device can work independently and smoothly after installation, that is, the synchronous belt 6 drives the mutual components to move up and down smoothly without any jamming, and the dotting pen 18 and the dotting pen fixing part 19 can be fixedly matched.

[0036] Preferably, the method further includes: achieving constant force contact tapping on the surface of the integrated circuit by utilizing the compression rebound force of the compression spring 16 itself, while playing a tapping buffering role.

[0037] Preferably, it also includes: through the self-gravity of the pressing block 22, always ensuring that the pressing block 22 is in the lower position when the dotting device is working, that is, the dotting pen always keeps pressing down and fixing the surface of the integrated circuit during the entire process of dotting the surface of the integrated circuit.

[0038] The present invention is suitable for marking and dotting designated locations on the surface of integrated circuits, specifically for distinguishing between PASS and FAIL after screening. It ensures consistent dot roundness, location, and size, resolving issues such as manual reliance, low throughput, prone to errors, and difficult quality control. It improves dotting efficiency and quality, meeting the growing demand for mid- to high-end IC screening. The device is time-saving and labor-saving, boasts a sophisticated structural design, and is stable, durable, and reliable.

[0039] In summary, the present invention proposes a post-screening integrated circuit surface dotting device and its method of use. By using a motor to drive a pulley, which then drives a dotting pen to dot the surface of the integrated circuit, this automatic dotting mechanism can be efficiently applied. This device also offers the advantages of an ingenious structure, stability, durability, and reliability.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present profession can make slight changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for marking the surface of an integrated circuit after screening, characterized in that: The invention comprises a motor (1), wherein the motor (1) is arranged at the upper end of a slide rail slider fixed vertical plate (2), a lower synchronous wheel adjustment block (3) is arranged at the lower end of the slide rail slider fixed vertical plate (2), a lower synchronous wheel (4) is arranged on the lower synchronous wheel adjustment block (3), an upper synchronous wheel (5) is connected to the motor shaft of the motor (1), a synchronous belt (6) is installed between the upper synchronous wheel (5) and the lower synchronous wheel (4), a slide rail slider (9) is installed on the slide rail slider fixed vertical plate (2), a component fixing plate (10) is slidably installed on the slide rail slider (9), the component fixing plate (10) is fixed to one side of the synchronous belt (6) through a synchronous belt buckle (7), a dotting pen mechanism is installed on the outer side of the component fixing plate (10), the dotting pen mechanism comprises a dotting pen (18), and when the synchronous belt (6) moves, it can drive the component fixing plate (10) to move along the slide rail slider (9), thereby driving the dotting pen (18) to move so as to dot the surface of the integrated circuit; The dotting pen mechanism further comprises a compression spring slide rail slider (14), a compression spring holder (15), a compression spring (16), a compression spring fixed lower seat (17), a dotting pen fixing member (19), a pressure block slide rail slider fixing member (20), a pressure block slide rail slider (21) and a pressure block (22), wherein the compression spring slide rail slider (14) and the compression spring holder (15) are respectively arranged at the lower part of the component fixing plate (10), the compression spring fixed lower seat (17) is slidably mounted on the compression spring slide rail slider (14), and the compression spring holder ( 15) and the compression spring fixed lower seat (17) are provided with a compression spring (16), the compression block slide rail slider fixing member (20) is provided on the outside of the compression spring fixed lower seat (17), the compression block slide rail slider (21) is provided on the compression block slide rail slider fixing member (20), the compression block (22) is provided on the compression block slide rail slider (21), the dotting pen fixing member (19) is installed on the compression spring fixed lower seat (17), and the dotting pen (18) is installed inside the dotting pen fixing member (19); An upper tension spring hook (11) is installed on the upper portion of the slide rail slider fixing vertical plate (2), a lower tension spring hook (13) is provided on the component fixing plate (10), and a tension spring (12) is provided between the upper tension spring hook (11) and the lower tension spring hook (13).

2. The integrated circuit post-screening surface dotting device according to claim 1, characterized in that: An origin sensor (8) for detecting the initial position of the motor (1) is installed on the upper portion of the slide rail slider fixed vertical plate (2), and the origin sensor (8) is located below the upper tension spring hook (11).

3. The integrated circuit post-screening surface dotting device according to claim 1, characterized in that: The lower end of the pressing block (22) is U-shaped, and the dotting pen (18) is used to dot a designated position on the surface of the integrated circuit through the U-shaped opening.

4. A method for using a surface dotting device after integrated circuit screening, applied to the surface dotting device after integrated circuit screening according to any one of claims 1 to 3, characterized in that: The method for using the integrated circuit post-screening surface dotting device includes: The rotation of the motor (1) drives the synchronous belt (6) to move, and when the synchronous belt (6) moves, it can drive the component fixing plate (10) to move along the slide rail slider (9), thereby driving the dotting pen (18) to move so as to dot the surface of the integrated circuit.

5. The method for using the integrated circuit post-screening surface dotting device according to claim 4, characterized in that: Also includes: Constant force contact and tapping of the integrated circuit surface is achieved through the compression rebound force of the compression spring (16) itself.

6. The method for using the integrated circuit post-screening surface dotting device according to claim 4, wherein: Also includes: The self-weight of the pressing block (22) ensures that the pressing block (22) is always in the lower position when the dotting device is working, thereby achieving downward pressing and fixing of the surface of the integrated circuit.

Images