A Study on the Optimization of the Conductive Ball Manufacturing Process, Used for Anisotropic Conductive Films
Currently, as the next-generation of display progresses—with high performance and high integration—the surface mounting technology of components is very important. In particular, in the case of flexible displays, such as rollable and bendable displays, ACF that connects wires to any curvature is ess...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Electronic Materials |
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| Online Access: | https://www.mdpi.com/2673-3978/3/3/21 |
| _version_ | 1797489123349495808 |
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| author | Jong-Keun Choi Young-Gyun Kim Kwan-Young Han |
| author_facet | Jong-Keun Choi Young-Gyun Kim Kwan-Young Han |
| author_sort | Jong-Keun Choi |
| collection | DOAJ |
| description | Currently, as the next-generation of display progresses—with high performance and high integration—the surface mounting technology of components is very important. In particular, in the case of flexible displays, such as rollable and bendable displays, ACF that connects wires to any curvature is essential. However, the conductive ball used inside the ACF has had problems with particle size and non-uniform metal coating. It was confirmed that the presence of solvent and oxygen, which are used in polymer synthesis, affects the sphere formation of polymer beads. By optimizing the factors affecting the polymer beads, a perfect spherical polymer bead was manufactured. In addition, the conductive ball manufacturing process was optimized by confirming the factors affecting the metal coating. The metal coating on the surface of the polymer bead was applied with a uniform thickness by considering the specific surface area and concentration of the conductive balls, and, through this optimized process, conductive balls for anisotropic conductive films with uniform size and metal thickness were obtained. |
| first_indexed | 2024-03-10T00:13:00Z |
| format | Article |
| id | doaj.art-5245bcaf75404db786cf7c826b99aff7 |
| institution | Directory Open Access Journal |
| issn | 2673-3978 |
| language | English |
| last_indexed | 2024-03-10T00:13:00Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronic Materials |
| spelling | doaj.art-5245bcaf75404db786cf7c826b99aff72023-11-23T15:56:51ZengMDPI AGElectronic Materials2673-39782022-08-013325226210.3390/electronicmat3030021A Study on the Optimization of the Conductive Ball Manufacturing Process, Used for Anisotropic Conductive FilmsJong-Keun Choi0Young-Gyun Kim1Kwan-Young Han2Department of Electronic and Electrical Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si 16890, KoreaDepartment of Electronic and Electrical Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si 16890, KoreaDepartment of Electronic and Electrical Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si 16890, KoreaCurrently, as the next-generation of display progresses—with high performance and high integration—the surface mounting technology of components is very important. In particular, in the case of flexible displays, such as rollable and bendable displays, ACF that connects wires to any curvature is essential. However, the conductive ball used inside the ACF has had problems with particle size and non-uniform metal coating. It was confirmed that the presence of solvent and oxygen, which are used in polymer synthesis, affects the sphere formation of polymer beads. By optimizing the factors affecting the polymer beads, a perfect spherical polymer bead was manufactured. In addition, the conductive ball manufacturing process was optimized by confirming the factors affecting the metal coating. The metal coating on the surface of the polymer bead was applied with a uniform thickness by considering the specific surface area and concentration of the conductive balls, and, through this optimized process, conductive balls for anisotropic conductive films with uniform size and metal thickness were obtained.https://www.mdpi.com/2673-3978/3/3/21anisotropic conductive film (ACF)polymer beadconductive ballmetal coating |
| spellingShingle | Jong-Keun Choi Young-Gyun Kim Kwan-Young Han A Study on the Optimization of the Conductive Ball Manufacturing Process, Used for Anisotropic Conductive Films Electronic Materials anisotropic conductive film (ACF) polymer bead conductive ball metal coating |
| title | A Study on the Optimization of the Conductive Ball Manufacturing Process, Used for Anisotropic Conductive Films |
| title_full | A Study on the Optimization of the Conductive Ball Manufacturing Process, Used for Anisotropic Conductive Films |
| title_fullStr | A Study on the Optimization of the Conductive Ball Manufacturing Process, Used for Anisotropic Conductive Films |
| title_full_unstemmed | A Study on the Optimization of the Conductive Ball Manufacturing Process, Used for Anisotropic Conductive Films |
| title_short | A Study on the Optimization of the Conductive Ball Manufacturing Process, Used for Anisotropic Conductive Films |
| title_sort | study on the optimization of the conductive ball manufacturing process used for anisotropic conductive films |
| topic | anisotropic conductive film (ACF) polymer bead conductive ball metal coating |
| url | https://www.mdpi.com/2673-3978/3/3/21 |
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