Question

In PCB, what are the electrical and thermal conductivity properties of ordinary metals?

Answer 1

In PCB, the electrical conductivity and thermal conductivity of ordinary metals are as follows:

1. Electrical conductivity: Ordinary metals (such as copper, aluminum, iron, etc.) have excellent electrical conductivity because they have a large number of free electrons and can easily pass electric current. In PCB, metal wires are mainly used to transmit and distribute current to ensure the normal operation of electronic equipment.

2. Thermal conductivity: Ordinary metals also have good thermal conductivity. When the electronic components in the PCB generate heat, the metal material can effectively dissipate this heat by transferring heat, thereby maintaining the stable operation of the electronic device. The thermal conductivity of metal is usually measured by thermal conductivity. The higher the thermal conductivity, the better the thermal conductivity.

Summary: Ordinary metals have excellent electrical and thermal conductivity properties in PCBs, which makes them one of the important materials for making PCB boards.

Answer 2

The conductive properties of a PCB mainly depend on its material and design.
First of all, the conductive properties of the materials used to make PCB have a direct impact on its conductive properties. Common PCB production materials include copper, aluminum, nickel, gold and other metals. Among them, copper has the best conductivity and is a commonly used conductive material in PCB.
Secondly, the design of the PCB will also affect its conductive properties. For example, the width of the wires on the PCB, the spacing between the lines, the shape and layout of the lines, etc. will all affect the signal transmission speed and signal quality. In addition, the number of layers and materials of PCB will also affect its conductive properties. Generally speaking, multi-layer PCBs have better electrical conductivity than single-layer PCBs, and PCBs made of materials with high electrical conductivity also have better electrical conductivity.
In short, the conductive performance of PCB is determined by its production materials and design, and needs to be selected and optimized according to specific application scenarios.