Anisotropic conductive film (ACF) structure and hot-pressing method and hot-pressing assembly thereof

An anisotropic conductive film (ACF) structure consisting of of an ACF, conductive particles in the ACF, and a copper/gold foil surface layer as a substrate, wherein the ACF is coated on the copper/gold foil surface layer;

• the ACF structure is hot-pressed by a hot-pressing method, the hot-pressing method comprises the following steps:
• S1:
• vibrating the ACF in a molten state to accelerate a flow of the conductive particles inside the ACF;
• S2:
• exposing the copper/gold foil surface layer and a bonded part a magnetic field to enhance an attraction of the copper/gold foil surface layer and the bonded part to the conductive particles inside the ACF;
• and
• S3:
• applying, when the ACF is in a curing stage, a closed circuit to ends of the copper/gold foil surface layer and the bonded part to perform real-time detection on the ACF so as to ensure effectiveness of the hot pressing method;
• the hot-pressing method of the ACF structure is implemented by using a hot-pressing assembly;
• the hot-pressing assembly comprises a pressure piece and a pressure-bearing plate;
• and the pressure-bearing plate is located under the pressure piece;
• a lower part of the pressure piece is provided with an electric heating tube, and an upper part of the pressure piece is provided with an evaporation tank and a condenser tube;
• two ends of the condenser tube are connected to the evaporation tank;
• a one-way valve is provided in the condenser tube;
• and a fan for cooling is provided outside the condenser tube;
• the pressure-bearing plate is provided with a conductive assembly;
• the conductive assembly comprises a power supply, a resistor, a first negative wire, a second negative wire, a first positive wire and a second positive wire;
• a first end of each of the first negative wire and the second negative wire is connected to a negative electrode of the power supply, and a second end of each of the first negative wire and the second negative wire is provided with an adhesive plate;
• a first end of each of the first positive wire and the second positive wire is connected to a positive electrode of the power supply, and a second end of each of the first positive wire and the second positive wire is provided with an adhesive plate;
• individual switches are respectively provided on the first negative wire, the second negative wire, the first positive wire and the second positive wire;
• and a bulb and a main switch are arranged on a main circuit of the power supply.