PCB Tech - The materials of PCB should be understood

The materials of PCB should be understood

PCB board, namely printed circuit board, as the most important carrier of electronic components, is the core of all electronic products and the basis of most electronic products. With the expansion of electronic products in various industries, PCB is also developing and making progress. So, do you know what kinds of materials PCB boards have? .

PCB board materials can generally be divided into rigid substrate materials and flexible substrate materials. The rigid substrate material is usually made of copper clad laminate, reinforced material, impregnated with resin adhesive, dried, cut and stacked to form blank, and then covered with copper foil. The steel plate is used as a mold and processed by high temperature and high pressure forming in a hot press. The semi-finished products in the manufacturing process of copper clad laminates (mostly glass cloth impregnated with resin and processed by drying) are usually semi cured sheets for Multilayer PCB boards.

Copper clad laminates can be divided into five categories according to different reinforcement materials:

1. Paper base

2. Glass fiber cloth base

3. Composite matrix (CEM Series)

4. Laminated multilayer board foundation

5. Special material base (ceramic, metal core base, etc.).

Copper clad laminates can be divided into:

1. Common paper-based CCI include phenolic resin (XPC, xxxpc, FR-1, FR-2, etc.)

2. Epoxy resin (Fe-3)

3. Polyester resin

4. Other special resins (glass fiber cloth, polyamide fiber, non-woven fabric, etc. are added):

(1) Bismaleimide modified triazine resin (BT)

(2) Polyimide resin (PI)

(3) Diphenylene ether resin (PPO)

(4) Maleic anhydride imine styrene resin (MS)

(5) Polycyanate resin

(6) Polyolefin resin

At present, the most widely used type of glass fiber cloth base is the common paper-based CCI, including phenolic resin.

The above is an introduction to the classification of PCB board materials. Through this article, I believe you have a certain understanding of "what kinds of materials are there for PCB board".