New favorite conductive filler: Innovative application of ultrafine silver micro powder to help cost control

Conductive filler is a widely used material in the manufacturing process of electronic components, and silver powder is an important type of conductive filler. In the selection of silver powder, it is necessary to consider the requirements of the adhesive, the processability of the target conductor material, the physical and chemical properties of the film layer, and reliability. Advanced Institute of Technology This article will exploreUltra fine silver powderApplication in conductive fillers and analysis of their performance and advantages.

1、 Spherical silver powder

Different specifications of spherical silver powder (20nm, 50nm, 80nm, 100nm, 200nm, 500nm, 800nm) have a wide range of applications in conductive fillers. These spherical silver powders have high size consistency and conductivity, which can provide good conductivity.

2、 Near spherical silver powder

Near spherical silver powder (1-3um, 3-5um) has high electrical conductivity, as well as good mechanical strength and hydrophobicity. They are suitable for various conductive filler requirements, especially for scenarios that require high strength and water resistance.

3、 Flake silver powder

　　silver flake(<1um, 1-3um, 3-5um, 5-8um, 8-12um, 15um,...) can provide a larger surface area, which is beneficial for enhancing conductivity. At the same time, flake silver powder can also provide good contact performance, suitable for conductive filler applications that require high contact.

4、 Silver bag copper powder

Silver coated copper powder (1-3um, 3-5um, 5-8um, 8-10um, 15um,...) combines the advantages of silver and copper, and has high electrical and thermal conductivity. This silver coated copper powder can meet the requirements of conductive fillers while reducing the amount of silver used and lowering costs.

In summary, silver powder serves asConductive fillerThe selection should comprehensively consider different performance requirements and choose the appropriate model and specifications according to the application scenario. Spherical silver powder, near spherical silver powder, flake silver powder, and silver coated copper powder each have their own advantages. While meeting the requirements of conductivity and thermal conductivity, they can minimize the use of silver powder as much as possible, thereby improving cost-effectiveness.