What is the relationship and difference between copper clad laminate and PCB?

In the above article, we explained the principle and function of PCB copper cladding, and a small partner asked what is the copper clad laminate? Are copper clad laminate and PCB silly to understand? Next, we will explain to you in the form of question and answer!

Q: What is copper clad laminate?

A: Copper Clad Laminate (CCL) is a composite material composed of a substrate (such as FR4) and one or more layers of copper foil and adhesive. The substrate is an insulating layer composed of polymer synthetic resin and reinforcing material. The surface of the base layer is covered with a layer of copper foil with high conductivity and good weldability. The copper foil is often covered on one or both sides of the substrate for Conductive connection becomes a single-sided copper clad laminate or a double-sided copper clad laminate. Common copper clad laminate thickness is 1mm, 1.5mm, 2mm.

Q: What are the relationships and differences between copper clad laminate and PCB?

A: The difference

(1) Function: The copper clad laminate mainly plays a conductive role, enabling electronic devices to be connected together and conduct circuit conduction. The PCB board not only has a conductive function, but also provides functions such as circuit component layout, organizing circuit structure, supporting and protecting components.

(2) Manufacturing process: The copper clad laminate is relatively simple, and the manufacturing process mainly includes copper foil bonding and cutting. The manufacturing process of PCB board is more complicated, including a series of steps such as image drawing, exposure, etching, perforation, electroplating, and pad laying.

(3) Application: Copper Clad Laminate is mainly used for circuit connection, conductive gasket, ground shielding and other applications, common in electronic prototypes, modular circuits and some consumer electronics products. The PCB board is widely used in electronic equipment, communication equipment, automotive electronics, household appliances and other fields, is an important component of electronic products.

Relationship

Copper clad laminate is an important upstream material for PCB manufacturing and has a strong interdependence with PCB. Often referred to as the substrate, it bears the four major functions of PCB conduction, insulation, support and signal transmission.

The knowledge points of copper clad laminate and PCB are relatively simple ~ this knowledge question and answer will be discussed here first. there are also small partners who do not understand can leave a message in the comment area. citic China will answer for you in time!

Citic Hua brand was established in 2004 and is now affiliated to Jialichuang Group. At present, it has two major production bases in Jiangsu and Jiangxi, providing customers with PCB/SMT one-stop service with "excellent price, high quality and fast delivery". The products are widely used in artificial intelligence, instrumentation, communication equipment, photovoltaic energy storage, automotive electronics and other fields. The plate has obtained UL, ISO, CQC, VDE and other international certifications to ensure the reliability and stability of product quality.