PCB is the carrier of electronic components, is an important part of circuit connection and power transmission. pcb stackup calculator Different uses of electronic equipment have different requirements for PCB materials. Common PCB materials are FR-4, metal substrate, ceramic substrate and polymer materials.
What materials are commonly used in pcb? 1 oz vs 2 oz What are the materials of pcb board?
1. FR-4
Fr-4 is a glass fiber reinforced plastic that is the most commonly used substrate in the PCB manufacturing process. It has excellent electrical properties, mechanical properties, thermal properties and weather resistance, and can meet the requirements of most electronic components. FR-4 is relatively cheap and widely used in home appliances, office electronics, automotive electronics, industrial controllers and other fields.
2. Metal substrate
What materials are commonly used in pcb? What are the materials of pcb board?
A metal substrate is a PCB board on which a metal film is coated. Commonly used metals are aluminum, copper, iron, nickel, stainless steel and so on. It has excellent heat dissipation and seismic performance, suitable for high-power electronic equipment, LED lighting, automotive electronics and other fields. But metal substrates have higher prices and higher manufacturing costs.
3. Ceramic substrate
Ceramic substrate is a very hard, high temperature, corrosion resistant material, suitable for high-frequency, high-power, high-precision electronic components. Ceramic substrate is usually made of high-purity alumina or silicon nitride, the cost is higher, mainly used in military, aerospace, medical and other high-end fields.
What materials are commonly used in pcb? What are the materials of pcb board?
4. Polymer materials
Polyimide, acrylic acid, polyamide, epoxy and other polymer materials have good mechanical properties, dimensional stability and thermal stability, suitable for high density, high speed, high precision circuit boards. The price of polymer materials is relatively high, mainly used in semiconductor production equipment, optical instruments, aerospace, military and other fields.
In summary, the selection of PCB board materials needs to be considered according to the use of the board, performance requirements and cost. At present, the main material used in the market is FR-4, and other materials are selected according to demand. In the design and manufacture of PCB, the selection of the right material plays an important role in the performance stability and reliability of PCB.
