General-purpose mounting and feeding carrier

Abstract

The utility model relates to general type mounting material loading carrier, include: the body, shape and size are same with wafer disc film expansion before, boss, set up in the front of body, the height of boss is consistent with wafer disc film expansion after height, tray disc, joint in the front of boss, release film, paste in the back of body, wherein, conveying mechanism conveys body to the position of mounting, lift mechanism drive thimble seat to go up, and thimble seat upper end stops and vacuum adsorption release film. Through design shape and size are same with wafer disc film expansion before body to simulate wafer disc, through boss simulation wafer disc film expansion after height, paste release film in the back of body, can use the material loading carrier of this embodiment on the mounting machine of only supporting wafer disc with material loading on a machine, and test through the vacuum adsorption of thimble seat. Tray disc is jointed in the front of boss again, can simultaneously material loading chip and special-shaped component, has reduced additional mounting process and transfer process, has improved 30% mounting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power module packaging equipment technology, and in particular to a general-purpose mounting and feeding carrier. Background Technology

[0002] Currently, when producing products that simultaneously mount wafer chips and irregularly shaped components, the placement equipment's trays can only support wafer or tray loading, so two different types of equipment are needed, such as sorting equipment and SMT placement equipment.

[0003] When using sorting equipment and SMT placement equipment for chip mounting, the chips in the wafer trays must first be sorted into trays by the sorting equipment. The trays can simultaneously hold chips and irregularly shaped components. Then, the sorted chips and irregularly shaped components are placed onto the SMT placement equipment for mounting. This method uses more equipment and involves more mounting steps, increasing production costs and reducing production efficiency. Furthermore, the process from sorting to mounting requires conveying or manual handling, which can easily lead to anomalies such as chip flipping or reverse mounting.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a universal mounting and feeding carrier to solve the problem of high production costs and low production efficiency caused by the need for multiple devices and multiple processes when producing products that simultaneously mount wafer chips and irregularly shaped components.

[0006] The technical solution adopted in this utility model is as follows: A universal placement carrier is used in a pick-and-place machine. The pick-and-place machine includes a conveying mechanism, a lifting mechanism, and an ejector pin holder. The lifting mechanism is located below the middle of the conveying mechanism, and the ejector pin holder is connected to the output end of the lifting mechanism. The lifting mechanism can drive the ejector pin holder to move up and down. The universal placement carrier includes: a body, with the same shape and size as the wafer tray before film expansion; a boss located on the front of the body, the height of which is the same as the height of the wafer tray after film expansion; a tray that is snapped onto the front of the boss; and a release film adhered to the back of the body. The conveying mechanism transports the body to the placement position. During placement, the lifting mechanism drives the ejector pin holder to rise, and the upper end of the ejector pin holder abuts against and vacuum-adsorbs the release film.

[0007] A further technical solution is that the tray is square, and the front of the boss is provided with a number of positioning posts on three sides of the tray, which form a groove to accommodate the tray. An elastic element is provided on the front of the boss on the remaining side of the tray, and the elastic element elastically abuts against the side of the tray to fix the tray in the groove.

[0008] A further technical solution is that the elastic element includes two fixing posts and a spring sheet; the fixing posts are disposed on the front of the boss and located at both ends of the spring sheet; the spring sheet is disposed perpendicular to the surface of the boss, with the middle part protruding towards the tray side, and hooks at both ends to hook the fixing posts.

[0009] A further technical solution is that a notch is opened at one corner of the tray, and a directional post is provided on the front of the boss. When the tray is snapped into the front of the body, the directional post is snapped into the notch.

[0010] A further technical solution is that the release film is a UV film or a blue film.

[0011] A further technical solution is that the placement machine includes a machine base, and the conveying mechanism includes two guide rails and two slide rails arranged along the length of the machine base, mounted on the upper part of the machine base. Two shafts are rotatably arranged between the two guide rails. Pulleys are fixedly sleeved on the shafts. A conveyor belt is sleeved on the outside of the two pulleys. The gripper is engaged with the guide rail and can slide along the guide rail. At the same time, the conveyor belt is fixedly connected to the gripper. A motor is arranged on the side of the guide rail. The output end of the motor is connected to the shaft. The material tray is engaged between the two slide rails. The gripper holds the material tray.

[0012] The beneficial effects of this utility model embodiment are as follows: (I) The universal mounting carrier of this utility model simulates a wafer tray by designing a body with the same shape and size as the wafer tray before film expansion, and uses bosses to simulate the height of the wafer tray after film expansion. The release film is then adhered to the back of the body, allowing for loading on a pick-and-place machine that only supports wafer trays. The loading carrier of this embodiment passes the vacuum adsorption test of the ejector pin seat. The tray is then snapped onto the front of the bosses, enabling simultaneous loading of chips and irregularly shaped components, reducing additional mounting and transfer processes, and improving mounting efficiency by 30%.

[0013] Meanwhile, the mounting process that previously required two machines can now be completed with just one machine, which reduces equipment costs and increases equipment utilization.

[0014] (ii) Furthermore, a notch is made at one corner of the back of the tray, and a directional post is set on the front of the boss. When the tray is attached to the front of the boss, the directional post is engaged with the notch to prevent incorrect placement of irregularly shaped components and to ensure accurate placement. Attached Figure Description

[0015] Figure 1 This is an isometric view of the universal mounting and feeding carrier of this utility model.

[0016] Figure 2 This is a front view structural diagram of the universal mounting and feeding carrier of this utility model.

[0017] Figure 3 This is a rear view structural diagram of the universal mounting and feeding carrier of this utility model.

[0018] Figure 4 for Figure 2 Enlarged view at point A.

[0019] In the picture: 1. Body; 2. Boss; 21. Positioning post; 22. Direction post; 3. Tray; 4. Elastic element; 41. Spring; 411. Hook; 42. Fixing post; 5. Release film. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Example:

[0022] This embodiment discloses a universal mounting and feeding carrier.

[0023] The general-purpose placement loading carrier is used in pick and place machines. The pick and place machine is equipped with a conveying mechanism, a lifting mechanism and an ejector pin seat. The lifting mechanism is located below the middle of the conveying mechanism. The ejector pin seat is connected to the output end of the lifting mechanism. The lifting mechanism can drive the ejector pin seat to move up and down.

[0024] For example, the pick-and-place machine is Yamaha's YRH10, which only supports wafer tray and tape loading. Because this pick-and-place machine has a pin system and the wafer tray cannot accommodate irregularly shaped components, without the loading carrier of this application, after placing components on the wafer tray using the pick-and-place machine of this application, it is necessary to use an SMT pick-and-place machine to mount the irregularly shaped components in the tray 3. This involves multiple mounting steps, and after the pick-and-place machine finishes mounting, the components need to be transferred or manually moved to another pick-and-place machine. During this process, there is also the risk of irregularly shaped components or chips falling off due to contact.

[0025] Specifically, the pick-and-place machine includes a machine base, and a conveying mechanism comprising two guide rails and two slide rails mounted along the length of the machine base, mounted on the upper part of the machine base. Two shafts are rotatably mounted between the two guide rails, with pulleys fixedly sleeved on the shafts. A conveyor belt is simultaneously sleeved on the outside of the two pulleys. Grippers are engaged with the guide rails and can slide along them. The conveyor belt is fixedly connected to the grippers. A motor is mounted on the side of the guide rails, with its output end connected to the shafts. A tray is held between the two slide rails, and the grippers hold the tray. When the motor is started, its output end drives the shafts to rotate, which in turn drives the pulleys to rotate. The pulleys then drive the conveyor belt, causing the grippers to slide along the guide rails. The grippers then move the tray to achieve conveying. The lifting mechanism can be a lifting cylinder. The ejector pin seat is fixed to the piston rod of the lifting cylinder. The lifting cylinder drives the piston rod to extend and retract, thereby raising and lowering the ejector pin seat.

[0026] like Figure 1 As shown, the general-purpose mounting and loading carrier includes a body 1, a boss 2, a tray 3, and a release film 5.

[0027] The shape and size of the main body 1 are the same as those of the wafer before film expansion. The boss 2 is provided on the front of the main body 1, and the height of the boss 2 is the same as the height of the wafer after film expansion.

[0028] Tray 3 is snapped onto the front of boss 2. For example... Figure 2 As shown, for example, the tray 3 is square. The front of the boss 2 is provided with several positioning posts 21 on three sides of the tray 3. The positioning posts 21 form a groove to accommodate the tray 3. An elastic member 4 is provided on the remaining side of the tray 3. The elastic member 4 elastically abuts against the side of the tray 3 and provides elastic support force to press and fix the tray 3 in the groove, preventing it from shaking and falling, and improving the stability and reliability of the loading carrier.

[0029] like Figure 3 As shown, the release film 5 is adhered to the back of the main body 1. The conveying mechanism transports the main body 1 to the placement position. During placement, the lifting mechanism drives the ejector pin seat to rise, and the upper end of the ejector pin seat abuts against and vacuum-adheres the release film 5. For example, the release film 5 is a UV film or blue film, which has a certain degree of adhesion and is easy to peel off, resulting in low cost. An ejector pin cap, made of ceramic material, is provided at the upper end of the ejector pin seat. The release film 5 is held in place by several evenly arranged pores on the ejector pin cap, ensuring accurate placement of chips and irregularly shaped components. Simultaneously, the vacuum detection of the placement machine ensures the normal operation of the placement process.

[0030] like Figure 4As shown, preferably, the elastic element 4 includes two fixing posts 42 and spring pieces 41. The fixing posts 42 are disposed on the front of the boss 2 and located at both ends of the spring pieces 41. The spring pieces 41 are disposed perpendicular to the surface of the boss 2, with the middle part protruding towards the tray 3, and hooks 411 at both ends to hook the fixing posts 42, making installation and disassembly convenient.

[0031] like Figure 2 As shown, a notch is made at one corner of the tray 3, and a directional post 22 is set on the front of the boss 2. When the tray 3 is snapped into the front of the boss 2, the directional post 22 is snapped into the notch to prevent the irregularly shaped components from being placed in the wrong direction, so as to make the placement accurate.

[0032] This embodiment also discloses a method for using a universal mounting and feeding carrier, including the following steps: Assembly: Design the body 1 with the same shape and size as the wafer before film expansion. Design the boss 2 on the body 1 with the same height as the wafer after film expansion. Snap the tray 3 onto the front of the boss 2 and stick the release film 5 onto the back of the body 1 to complete the assembly of the loading carrier.

[0033] Specifically, the tray 3 is pushed aside by the elastic element 4 and inserted into the groove formed by the positioning post 21, with the elastic element 4 elastically abutting against the side of the tray 3.

[0034] Feeding: The conveying mechanism delivers the material tray loaded into the feeding carrier or wafer tray to the placement position each time. During placement, the lifting mechanism drives the ejector pin seat to rise, and the upper end of the ejector pin seat abuts against and vacuum-adsorbs the release film 5.

[0035] Specifically, the main body 1 of the feeding carrier or wafer is snapped into the upper end of the material tray, and there is a through hole in the middle of the material tray for the ejector pin seat to pass through.

[0036] Placement: The pick-and-place machine simultaneously places irregularly shaped components in the loading carrier and chips on the wafer tray.

[0037] In this embodiment, a body 1 with the same shape and size as the wafer tray before film expansion is designed to simulate the wafer tray. A boss 2 simulates the height of the wafer tray after film expansion. The release film 5 is adhered to the back of the body 1, allowing for material loading using the loading carrier of this embodiment on a pick-and-place machine that only supports wafer trays. The loading is then tested using vacuum adsorption from the ejector pins. The tray 3 is then snapped onto the front of the boss 2, enabling simultaneous loading of chips and irregularly shaped components onto the copper-clad laminate. This reduces additional placement and transfer processes, improving placement efficiency by 30%.

[0038] Meanwhile, the mounting process that previously required two machines can now be completed with just one machine, which reduces equipment costs and increases equipment utilization.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A universal mounting and feeding carrier, characterized in that, For use in a pick-and-place machine, the pick-and-place machine is provided with a conveying mechanism, a lifting mechanism, and an ejector pin holder. The lifting mechanism is located below the middle of the conveying mechanism, and the ejector pin holder is connected to the output end of the lifting mechanism. The lifting mechanism can drive the ejector pin holder to move up and down. The universal placement loading carrier includes: The body, shape, and size are the same as those of the wafer before expansion; A boss is provided on the front of the body, and the height of the boss is the same as the height of the wafer after the film is expanded. The tray is snapped onto the front of the protrusion; Release film is adhered to the back of the body; The conveying mechanism transports the body to the patching position. During patching, the lifting mechanism drives the ejector pin seat to rise, and the upper end of the ejector pin seat abuts against and vacuum-adsorbs the release film.

2. The universal mounting and feeding carrier according to claim 1, characterized in that: The tray is square. The front of the boss is provided with several positioning posts on three sides of the tray. The positioning posts form a groove to accommodate the tray. An elastic element is provided on the remaining side of the tray. The elastic element elastically abuts against the side of the tray to fix the tray in the groove.

3. The universal mounting and feeding carrier according to claim 2, characterized in that: The elastic element includes two fixing posts and spring pieces; the fixing posts are disposed on the front of the boss and located at both ends of the spring pieces; the spring pieces are disposed perpendicular to the surface of the boss, with the middle part protruding towards the tray side, and hooks at both ends to hook the fixing posts.

4. The universal mounting and feeding carrier according to claim 1, characterized in that: A notch is provided at one corner of the tray, and a directional post is provided on the front of the boss. When the tray is attached to the front of the body, the directional post is engaged with the notch.

5. The universal mounting and feeding carrier according to claim 1, characterized in that: The release film is a UV film or a blue film.

6. The universal mounting and feeding carrier according to claim 1, characterized in that: The pick and place machine includes a machine base. The conveying mechanism includes two guide rails and two slide rails arranged along the length of the machine base, mounted on the upper part of the machine base. Two shafts are rotatably arranged between the two guide rails. Pulleys are fixedly sleeved on the shafts. A conveyor belt is sleeved on the outside of the two pulleys. Grippers are engaged with the guide rails and can slide along the guide rails. The conveyor belt is fixedly connected to the grippers. A motor is arranged on the side of the guide rails. The output end of the motor is connected to the shafts. A tray is engaged between the two slide rails. The grippers hold the tray.

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