Room temperature curing, heating curing, UV curing, infrared curing, microwave curing, conductive silver adhesive

The tunnel effect can also causeConductive adhesiveA certain current path is generated between conductive particles. When conductive particles are not in contact with each other, there is an isolation layer between the particles, which hinders the directional motion of free electrons in the conductive particles. According to the concept of quantum mechanics, for a microscopic particle, even if its energy is less than the energy of the potential barrier, there is not only a possibility of reflection, but also a possibility of penetration, also known as tunneling effect. Electrons are microscopic particles, therefore they have the ability to pass throughconducting particlesThe possibility of isolation layer obstruction.

Based on the above analysis, the conductivity of conductive adhesive can be divided into three types:

1. A portion of conductive particles come into complete continuous contact with each other to form a current path;

2. A portion of conductive particles are in incomplete continuous contact, where current paths are formed between conductive particles that are not in contact with each other due to tunneling effects;

3. Part of the conductive particles are completely continuous, and the isolation layer of the conductive particles is completely continuous, which is electrical insulation.

5. Application of conductive adhesive:

⑴Conductive adhesiveUsed for microelectronic assembly, including thin wires and printed circuits, electroplated substrates, metal layers of ceramic adhesives, metal chassis connections, bonding wires and sockets, bonding components and flat holes passing through printed circuits, bonding waveguide tuning, and hole repair

⑵ Conductive adhesive is used to replace spot welding where the welding temperature exceeds the tolerance of the oxide film formed during welding Conductive adhesive, as a substitute for tin lead solder, is mainly used in telephone and mobile communication systems; Broadcasting, television, computer and other industries; Automotive industry; Medical equipment; Resolve electromagnetic compatibility (EMC) and other related issues

Another application of conductive adhesive is to bond electrode plates and magnetic crystals in ferroelectric devices Conductive adhesive can replace welding flux and crystals that tend to deposit due to welding temperature The bonding of battery terminals is another use of conductive adhesive when the welding temperature is unfavorable

Conductive adhesive can form joints with sufficient strength, therefore, it can be used asstructural adhesive.