Free technical materials available! Introducing the benefits of ACF implementation, including the three functions of adhesion, conduction, and insulation!
Anisotropic conductive film (ACF) is a film material used to mount electronic components such as ICs onto substrates and to form circuits. It was commercialized in 1977 by Sony Chemical, the predecessor of Dexerials, and is now used as a material for circuit bonding in almost all digital devices that utilize flat panel displays, such as smartphones, tablet PCs, and high-definition televisions. To display images on a display screen, it is necessary to electrically connect the IC chip to the glass substrate of the display and form numerous electronic circuits. ACF is used for that connection. Currently, ACF is commonly used in the mounting method called "COG mounting," which connects IC chips to glass substrates, and in "FOG mounting," which connects flexible printed circuits to glass substrates. Additionally, ACF is utilized in camera modules such as CCD (Charge-Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor), as well as in the circuit connection parts of contactless IC cards. *For more detailed information, please refer to the related links. For further inquiries, feel free to contact us.*
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The mechanism by which ACF can bond, conduct, and insulate circuits on its own. The feature of ACF is that it performs three functions: "bonding," "conducting," and "insulating" independently. It can connect a large number of electrodes at once, enabling finer connections (fine pitch) compared to "soldering methods," and it can be implemented at low temperatures of around 110°C to 180°C, which are significant advantages. ACF has a structure in which conductive particles are dispersed within a thermosetting resin adhesive. There are many types of conductive particles included in ACF, tailored to specific purposes, but a typical one consists of a resin core covered with nickel or gold, which are good conductors, and further coated with an insulator on the surface. Particles that are not sandwiched between terminals can move within the base resin of the film between the terminals, preventing shorts as the insulating coating is maintained. It conducts electricity in the "vertical" direction between the electrodes while not conducting electricity in the "horizontal" direction between the electrodes, meaning it has different electrical characteristics depending on the direction, which is the origin of the name "anisotropic conductive film." *For more detailed information, please refer to the related links. For further inquiries, feel free to contact us.*
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Dexerials Corporation has business offices and sales bases not only in Japan but also in Asia, including China, as well as in Europe and the United States. We continue to provide products with new value that meet customer needs tailored to each market. By adding new technologies to our existing products, we aim to maintain and strengthen our business. Moving forward, we will boldly challenge the automotive and life sciences sectors, steadily nurturing and expanding new businesses, while advancing the development of technologies that will pave the way for the future. As a company that creates new value that is not found anywhere else, we strive to maximize customer value and continue to challenge ourselves to become a trusted partner for our customers and society.