Anti-static blister tray
By designing a conductive leather base and insulated support structure on the blister pack, combined with pressing bumps and sliding pillars, the problem of static electricity accumulation was solved, achieving an anti-static effect and improving the product quality of wafer transportation.
Patent Information
- Application Number
- CN202521442844.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-07-10
AI Technical Summary
Conventional blister trays lack anti-static properties during wafer transport, leading to static electricity buildup, contamination, and electrostatic discharge incidents that damage the wafers and reduce yield.
The base is made of conductive leather and the legs are made of insulating material. Combined with the push-button and sliding column structure, it realizes the functions of static discharge and support. When the legs are pressed, they contact the table to release the charge. When the legs are lifted, they are supported by the contact plate.
This technology enables the use of blister packs without leaving any residual charge, preventing static electricity buildup, protecting wafers from contamination and discharge damage, and improving wafer manufacturing yield.
Smart Images
Figure CN224929437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blister tray technology, specifically an anti-static blister tray. Background Technology
[0002] Existing blister trays are plastic trays widely used for packaging, transporting, and storing precision products such as electronic components and semiconductor chips (especially wafers). They are typically made from thermoplastic sheets such as polypropylene (PP), polystyrene (PS), or polyethylene terephthalate (PET), which are softened by heating and then formed using a vacuum adsorption (blister forming) process. Their design features an array of grooves that precisely match the shape of the items they hold (such as wafers), securely fixing and separating individual items, providing physical protection (such as protection against scratches and impacts), and facilitating automated handling. Due to their low cost, light weight, high production efficiency, and good transparency (facilitating visual inspection), blister trays have become an indispensable packaging medium in the electronics manufacturing industry.
[0003] However, conventional blister pack materials typically lack anti-static properties. During wafer transfer, the lack of pre-discharge mechanisms means that the blister packs retain and accumulate significant amounts of charge, causing problems. First, electrostatic attraction draws in dust, particles, and other contaminants from the environment, causing contamination defects on the delicate wafer circuitry surface. Second, high static voltage can lead to electrostatic discharge (ESD) events. Although the energy of this discharge is small, it is sufficient to break down the extremely fragile, nanoscale transistor gate oxide layers or metal interconnects on the wafer, causing minute but fatal damage. This results in chip malfunction or a significant decrease in reliability, ultimately significantly reducing the yield rate of the wafer manufacturing process. Therefore, the electrostatic problems of ordinary blister packs pose a significant risk to wafer protection and product quality. Utility Model Content
[0004] The purpose of this utility model is to provide an anti-static blister tray to solve the problems mentioned in the background art and overcome its technical defects.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an anti-static blister tray, including a tray body, a base fixedly installed on one side of the tray body, the base being made of conductive leather, and support feet provided at the corners of the tray body, the support feet being movably connected to the tray body, the support feet being made of insulating material.
[0006] As a further embodiment of this utility model: an anti-static blister tray, wherein the tray body has an internal cavity, a baffle is fixedly installed inside the cavity, the support foot includes a sliding column and a support, a contact piece is fixedly connected to the outer periphery of the sliding column, and the contact piece is adapted to the baffle.
[0007] As a further embodiment of this utility model: an antistatic blister tray, which further includes material cavities, a plurality of which are evenly laid out inside the tray body.
[0008] As a further embodiment of this utility model: an anti-static blister tray, wherein a pressing protrusion is fixedly installed on one side of the baffle, one end of the sliding column is fixedly connected to the support, and the end of the sliding column away from the support is movably connected to the pressing protrusion.
[0009] As a further embodiment of this utility model: an anti-static blister tray, wherein a flat head is fixedly installed on one side of the support, and the end of the flat head away from the support is ground flat.
[0010] As a further improvement of this utility model: an anti-static blister tray, wherein when the support leg is pressed down, its lowest point extends 3-5 cm beyond the lowest surface of the base.
[0011] As a further embodiment of this utility model: an anti-static blister tray, wherein the conductive skin has a sliding hole inside, and the support legs extend through the sliding hole to the outside of the conductive skin.
[0012] As a further embodiment of this utility model: an antistatic blister tray, wherein the conductive skin is made of carbon black-filled conductive polystyrene, and the support legs are made of polyethylene material.
[0013] Compared with the prior art, the beneficial effects of this utility model include: Because a base is fixedly installed on one side of the tray, the base is made of conductive material, and support feet are provided at the corners of the tray. The support feet are movably connected to the tray and are made of insulating material, specifically carbon black-filled conductive polystyrene for the conductive material and polyethylene for the support feet. Therefore, before using the blister tray, the base can be placed flat on the table to release the charge remaining inside the tray. Then, press the protruding point to press down the support feet. Since the lowest point of the support feet exceeds the lowest surface of the base by 3-5cm after being pressed down, the support feet will contact the table and lift the tray, allowing the tray to be used in a working state without residual charge, thus achieving the anti-static effect of the tray.
[0014] Because the disc body has a cavity inside, and a baffle is fixedly installed inside the cavity, the support leg includes a sliding column and a support base. A contact piece is fixedly connected to the outer periphery of the sliding column. The contact piece is adapted to the baffle, so the support leg can maintain its supporting capacity under the action of the contact piece and the baffle when it is raised. Attached Figure Description
[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 The schematic diagram shows one of the overall structural schematic diagrams according to one embodiment of the present invention; Figure 2 The schematic diagram shows a second overall structural diagram according to one embodiment of the present invention; Figure 3 The schematic diagram shows a split structure according to one embodiment of the present invention; Figure 4 The schematic diagram shows a structural schematic of a support leg according to one embodiment of the present invention; Figure 5 The diagram schematically shows an enlarged view of point A according to one embodiment of the present invention; The following are the labels in the diagram: 1. Disc body; 11. Cavity; 12. Baffle; 2. Material cavity; 3. Support leg; 31. Sliding column; 32. Support; 33. Contact piece; 34. Flat head; 4. Edge shield; 5. Pressing protrusion; 6. Base; 7. Conductive skin; 8. Sliding hole. Detailed Implementation
[0016] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0017] According to one embodiment of the present invention, an antistatic blister tray is shown in conjunction with the accompanying drawings. The tray includes a tray body 1, a base 6 fixedly installed on one side of the tray body 1, the base 6 being made of conductive leather 7, and support legs 3 provided at the corners of the tray body 1. The support legs 3 are movably connected to the tray body 1 and are made of insulating material.
[0018] Since a base 6 is fixedly installed on one side of the tray 1, the base 6 is made of conductive skin 7, and a support leg 3 is provided at the corner of the tray 1, the support leg 3 is movably connected to the tray 1, and the support leg 3 is made of insulating material, specifically, the conductive skin 7 is made of carbon black filled conductive polystyrene, and the support leg 3 is made of polyethylene material, the base 6 can be placed flat on the table before using the blister tray to release the charge remaining inside the tray 1. Then, press the pressing protrusion 5 to press down the support leg 3. Since the lowest point of the support leg 3 exceeds the lowest surface of the base 6 by 3-5cm after being pressed down, the support leg 3 will contact the table and lift the tray 1, so that the tray 1 can be used in a working state without residual charge, thus achieving the anti-static effect of the tray 1.
[0019] As a further embodiment of this utility model: an anti-static blister tray, wherein the tray body 1 has a cavity 11 inside, a baffle 12 is fixedly installed inside the cavity 11, the support leg 3 includes a sliding column 31 and a support 32, a contact piece 33 is fixedly connected to the outer periphery of the sliding column 31, and the contact piece 33 is adapted to the baffle 12.
[0020] Since the interior of the disc body 1 has a cavity 11, and a baffle 12 is fixedly installed inside the cavity 11, the support leg 3 includes a sliding column 31 and a support 32. A contact piece 33 is fixedly connected to the outer periphery of the sliding column 31. The contact piece 33 is adapted to the baffle 12. Therefore, when the support leg 3 is raised, it can maintain its supporting capacity under the action of the contact piece 33 and the baffle 12.
[0021] As a further embodiment of this utility model: an antistatic blister tray, which further includes a material cavity 2, and a plurality of the material cavities 2 are evenly laid inside the tray body 1.
[0022] As a further embodiment of this utility model: an anti-static blister tray, wherein a pressing protrusion 5 is fixedly installed on one side of the baffle 4, one end of the sliding column 31 is fixedly connected to the support 32, and the end of the sliding column 31 away from the support 32 is movably connected to the pressing protrusion 5.
[0023] As a further embodiment of this utility model: an anti-static blister tray, wherein a flat head 34 is fixedly installed on one side of the support 32, and the end of the flat head 34 away from the support 32 is ground flat.
[0024] As a further improvement of this utility model: an anti-static blister tray, wherein when the support leg 3 is pressed down, its lowest point extends 3-5cm beyond the lowest surface of the base 6.
[0025] As a further embodiment of this utility model: an anti-static blister tray, wherein the conductive skin 7 has a sliding hole 8 inside, and the support leg 3 extends through the sliding hole 8 to the outside of the conductive skin 7.
[0026] As a further embodiment of this utility model: an antistatic blister tray, wherein the conductive skin 7 is made of carbon black-filled conductive polystyrene, and the support legs 3 are made of polyethylene material.
[0027] Working principle: A base 6 is fixedly installed on one side of the tray 1. The base 6 is made of conductive skin 7. Support legs 3 are provided at the corners of the tray 1. The support legs 3 are movably connected to the tray 1. The support legs 3 are made of insulating material. Specifically, the conductive skin 7 is made of carbon black-filled conductive polystyrene, and the support legs 3 are made of polyethylene material. Therefore, before using the blister tray, the base 6 can be placed flat on the table to release the charge remaining inside the tray 1. Then, press the protrusion 5 to press down the support legs 3. Since the lowest point of the support legs 3 exceeds the lowest surface of the base 6 by 3-5cm after being pressed down, the support legs 3 will contact the table and lift the tray 1, so that the tray 1 can be used in a working state without residual charge, thus achieving the anti-static effect of the tray 1.
[0028] Since the interior of the disc body 1 has a cavity 11, and a baffle 12 is fixedly installed inside the cavity 11, the support leg 3 includes a sliding column 31 and a support 32. A contact piece 33 is fixedly connected to the outer periphery of the sliding column 31. The contact piece 33 is adapted to the baffle 12. Therefore, when the support leg 3 is raised, it can maintain its supporting capacity under the action of the contact piece 33 and the baffle 12.
[0029] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. An antistatic blister tray, characterized in that, The device includes a disc body (1), a base (6) fixedly installed on one side of the disc body (1), the base (6) being made of conductive skin (7), and a support foot (3) provided at the corner of the disc body (1), the support foot (3) being movably connected to the disc body (1), the support foot (3) being made of insulating material; a cavity (11) is opened inside the disc body (1), a baffle (12) is fixedly installed inside the cavity (11), the support foot (3) includes a sliding column (31) and a support (32), a contact piece (33) is fixedly connected to the outer periphery of the sliding column (31), the contact piece (33) being adapted to the baffle (12); when the support foot (3) is pressed down, its lowest point extends 3-5 cm beyond the lowest surface of the base (6).
2. The antistatic blister tray according to claim 1, characterized in that, It also includes material cavities (2), several of which are evenly spread inside the disc body (1).
3. The antistatic blister tray according to claim 2, characterized in that, It also includes a lintel (4), on one side of which a pressing protrusion (5) is fixedly installed. One end of the sliding column (31) is fixedly connected to the support (32), and the end of the sliding column (31) away from the support (32) is movably connected to the pressing protrusion (5).
4. The antistatic blister tray according to claim 3, characterized in that, A flat head (34) is fixedly installed on one side of the support (32), and the end of the flat head (34) away from the support (32) is ground flat.
5. The antistatic blister tray according to claim 4, characterized in that, The conductive skin (7) has a sliding hole (8) inside, and the support leg (3) extends through the sliding hole (8) to the outside of the conductive skin (7).
6. The antistatic blister tray according to claim 5, characterized in that, The conductive skin (7) is made of carbon black-filled conductive polystyrene, and the support leg (3) is made of polyethylene material.