Seal dust removal jig applied to optical filter
By designing a printing and dust removal fixture, the dust removal adhesive is transferred to the black masking area of the filter, solving the problem of foreign matter adhesion on the filter surface and improving the production line yield of camera assembly process.
Patent Information
- Application Number
- CN202422848956.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Existing technologies struggle to effectively remove movable foreign objects from the surface of filters, resulting in a high defect rate of filters during camera assembly and impacting production line yield.
Design a printing dust removal fixture that uses a printing head to connect dust removal adhesive and transfer it to a black masking area outside the photosensitive area of the filter. This maximizes the adhesive effect of the adhesive, allowing it to adhere directly to the filter surface, closest to the photosensitive area, and directly stick to movable foreign objects.
This technology enables efficient dust removal from the filter surface, reduces the filter defect rate, and improves the production line yield of camera assembly processes.
Smart Images
Figure CN223556729U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of optical filter, concretely to a printing dust removal jig applied to optical filter. BACKGROUND
[0002] With the development of the times, more and more mobile phones begin to pay attention to the upgrade of photographing hardware, and the performance requirements of the camera in all aspects are also continuously improved, and the camera assembly process is also continuously updated to meet the market demand. Among them, the flip chip welding technology is a more advanced process compared with other technologies, and has great advantages in camera size, performance, reliability, appearance and the like. This camera process mainly includes a substrate, a chip, an optical filter, a VCM lens, a skin wire soft plate and the like. The mobile phone camera CMOS can perceive infrared light that the human eye cannot perceive, resulting in the inability to correctly calculate the true color of the photographed object, so an infrared cut-off filter needs to be installed between the lens and the chip to filter out infrared light, so that the object color of the photo is consistent with what the human eye sees. Therefore, the cleanliness of the optical filter is very important in the camera module, and once foreign matter appears on the optical filter, it will be as Low contrast Blemish (LCB), resulting in product scrap, so how to ensure that the surface of the optical filter is not affected by foreign matter in the camera assembly process is the most important, which directly affects the yield of the production line.
[0003] At present, the method for reducing foreign matter on the surface of the optical filter is to apply a layer of adhesive glue on the edge of the substrate beside the optical filter after the optical filter attachment substrate process is completed, so that the movable foreign matter in the production process is adhered to the glue and will not fall on the surface of the optical filter to cause defects. This method can greatly remove foreign matter brought by the environment, equipment or substrate itself, but since there is a certain distance from the photosensitive area of the optical filter, and there is a risk of movable foreign matter during subsequent assembly, although the effect of adhering foreign matter can be achieved, but when movable foreign matter falls on the optical filter, it cannot be effectively removed and adhered. Utility model content
[0004] To solve the defects in the prior art, the utility model provides a printing dust removal jig applied to an optical filter.
[0005] To solve the above technical problems, the utility model provides the following technical scheme:
[0006] The utility model relates to a printing dust removal jig applied to the filter screen, including seal jig and product, and set up between seal jig and product's printing plate, the seal jig includes the printing head main part, and the bottom of printing head main part is equipped with the printing head, the product includes the base plate, and the top middle part of base plate is equipped with the filter screen, the printing plate is equipped with the printing groove corresponding with the filter screen, and the seal jig is equipped in the upper portion of printing plate, and the product is equipped in the lower portion of printing plate, the bottom of printing head is adhered with dust removal glue, and dust removal glue corresponds with the printing groove.
[0007] As a preferred technical scheme of the utility model, the top of the printing head main body is provided with a printing head connecting part, which is connected with an external device.
[0008] As a preferred technical scheme of the utility model, one side of the base plate away from the filter screen is provided with a chip.
[0009] As a preferred technical scheme of the utility model, the groove depth of the printing groove is 0.03 mm.
[0010] As a preferred technical scheme of the utility model, the width of the printing head of the seal jig is greater than the width of the printing groove on the printing plate.
[0011] As a preferred technical scheme of the utility model, the material of the printing head is silica gel.
[0012] As a preferred technical scheme of the utility model, the filter screen includes a filter screen light-sensitive area and a filter screen black shielding area arranged at the periphery of the filter screen light-sensitive area.
[0013] As a preferred technical scheme of the utility model, the filter screen light-sensitive area corresponds to the pixel area of the chip.
[0014] As a preferred technical scheme of the utility model, a gap of 0.02 mm is left between the printing plate and the filter screen of the product.
[0015] As a preferred technical scheme of the utility model, the length and width dimensions of the bottom of the printing head 102 are all 0.05 mm greater than the length and width dimensions of the printing groove 301.
[0016] The utility model has the advantages of:
[0017] The printing dust removal jig applied to the filter screen, by designing the seal jig, the printing head of the jig first takes dust removal glue, then the seal jig and the printing plate are used to transfer the dust removal glue to the black shielding area outside the filter screen light-sensitive area, which maximizes the effect of the dust removal glue, directly adheres to the surface of the filter screen, and is closest to the light-sensitive area, when there are movable foreign matters on the surface of the filter screen, can directly stick to achieve the best dust removal effect. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not limit the present application. In the drawings:
[0019] Figure 1 is a structural schematic view of a printing and dust removing jig applied to a filter;
[0020] Figure 2 is an exploded structural schematic view of a printing and dust removing jig applied to a filter;
[0021] Figure 3 is a printing jig structural schematic view of a printing and dust removing jig applied to a filter;
[0022] Figure 4 is a product structural schematic view of a printing and dust removing jig applied to a filter;
[0023] Figure 5 is a dust removing glue and filter connecting structural schematic view of a printing and dust removing jig applied to a filter.
[0024] In the drawings: 1, printing jig; 101, printing head main body; 102, printing head; 103, printing head connecting part; 2, product; 201, base plate; 202, filter; 2021, filter photosensitive area; 2022, filter black shielding area; 203, chip; 3, printing plate; 301, printing groove; 4, dust removing glue. DETAILED DESCRIPTION
[0025] The preferred embodiments of the present application are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the present application, and do not limit the present application.
[0026] Embodiment: as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the utility model relates to a printing and dust removing jig applied to the filter, which comprises a printing jig 1, a product 2 and a printing plate 3 arranged between the printing jig 1 and the product 2, wherein the printing jig 1 comprises a printing head main body 101, and the bottom end of the printing head main body 101 is provided with a printing head 102; the product 2 comprises a substrate 201, and the top end of the substrate 201 is provided with a filter 202; the printing plate 3 is provided with a printing groove 301 corresponding to the filter 202, and the filter black shielding area 203 is used for absorbing the filter 202; the printing jig 1 is arranged on the upper part of the printing plate 3, and the product 2 is arranged on the lower part of the printing plate 3; the bottom end of the printing head 102 is adhered with dust removing glue 4, the dust removing glue 4 is a kind of glue specially used for sticking dust, has certain fluidity and viscosity, and the dust removing glue 4 corresponds to the printing groove 301; by designing the printing jig 1, the printing head 102 of the jig first takes the dust removing glue 4, then the printing jig 1 and the printing plate 3 are used to transfer the dust removing glue 4 to the black shielding area outside the photosensitive area of the filter 202; this method maximizes the effect of the dust removing glue 4, directly adheres to the surface of the filter 202, is closest to the photosensitive area, and can directly stick when there are movable foreign matters on the surface of the filter 202, so that the best dust removing effect is achieved.
[0027] Among them, the top end of the printing head main body 101 is provided with a printing head connecting part 103, the printing head connecting part 103 is connected with an external device, and the printing head 102 is driven to take glue and transfer printing.
[0028] Among them, one side of the substrate 201 away from the filter 202 is provided with a chip 203.
[0029] Among them, the groove depth of the printing groove 301 is 0.03mm, and the glue taking stability is better.
[0030] Among them, the width of the printing head 102 of the printing jig 1 is greater than the width of the printing groove 301 on the printing plate 3.
[0031] Among them, the material of the printing head 102 is selected from silica gel material, which mainly takes the dust removing glue and transfers the dust removing glue to the surface of the filter.
[0032] Among them, the filter 202 comprises a filter photosensitive area 2021 and a filter black shielding area 2022 arranged at the periphery of the filter photosensitive area 2021.
[0033] Among them, the filter photosensitive area 2021 corresponds to the pixel area of the chip 203, and plays a role in filtering infrared light.
[0034] Among them, a gap of 0.02mm is left between the printing plate 3 and the filter 202 of the product 2, so as to prevent the printing plate 102 from pressing the filter 202 and causing pollution.
[0035] The length and width dimensions of the bottom of the stamp head 102 are 0.05 mm larger than the length and width dimensions of the stamp groove 301, so as to ensure that the glue can be smoothly transferred to the surface of the optical filter.
[0036] In operation, the stamping dust removal jig applied to the optical filter 202 is used to first take up the dust removal glue 4 by the stamp head 102 of the jig, and then the dust removal glue 4 is transferred and stamped on the black shielding area outside the photosensitive area of the optical filter 202 by using the stamping jig 1 and the stamp plate 3. This method maximizes the effect of the dust removal glue 4, which is directly adhered to the surface of the optical filter 202 and is closest to the photosensitive area. When there is a movable foreign matter on the surface of the optical filter 202, the dust removal glue 4 can directly adhere to the foreign matter, thereby achieving the best dust removal effect.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. Any modification, equivalent replacement or improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A stamp dust removal fixture for optical filters, characterized in that, It includes a stamp fixture (1) and a product (2), and a stamp plate (3) disposed between the stamp fixture (1) and the product (2); The seal fixture (1) includes a seal head body (101), and a seal head (102) is provided at the bottom end of the seal head body (101). The product (2) includes a substrate (201), and a filter (202) is provided at the top center of the substrate (201). The printing plate (3) has an printing groove (301) corresponding to the filter (202), the stamp fixture (1) is located on the upper part of the printing plate (3), and the product (2) is located on the lower part of the printing plate (3). The bottom of the print head (102) is adhered with dust removal adhesive (4), and the dust removal adhesive (4) corresponds to the print groove (301).
2. The stamp dust removal fixture for optical filters according to claim 1, characterized in that, The top of the print head body (101) is provided with a print head connection part (103), which is connected to an external device.
3. The stamp dust removal fixture for optical filters according to claim 1, characterized in that, A chip (203) is provided on the side of the substrate (201) away from the filter (202).
4. A stamp dust removal fixture for optical filters according to claim 1, characterized in that, The groove depth of the printing groove (301) is set to 0.03 mm.
5. A stamp dust removal fixture for optical filters according to claim 1, characterized in that, The width of the stamp head (102) of the stamp fixture (1) is greater than the width of the stamp groove (301) on the stamp plate (3).
6. A stamp dust removal fixture for optical filters according to claim 1, characterized in that, The print head (102) is made of silicone.
7. A stamp dust removal fixture for optical filters according to claim 3, characterized in that, The filter (202) includes a filter photosensitive area (2021) and a filter black blocking area (2022) disposed around the filter photosensitive area (2021).
8. A stamp dust removal fixture for optical filters according to claim 7, characterized in that, The photosensitive area (2021) of the filter corresponds to the pixel area of the chip (203).
9. A stamp dust removal fixture for optical filters according to claim 1, characterized in that, A gap of 0.02 mm is left between the printing plate (3) and the filter (202) of the product (2).
10. A stamp dust removal fixture for optical filters according to claim 1, characterized in that, The bottom dimensions of the print head (102) are both 0.05 mm larger than the dimensions of the print groove (301).