What is a thick copper pcb?
Thick copper circuit board is a kind of circuit board which is made of copper foil as the base material by pressing, laminating, plating, etching and other processes. Due to its high current carrying capacity, reliability and stability, it is widely used in various electronic devices, such as communications, automotive, industrial control and other fields.Manufacturing Process of Thick Copper Circuit Boards
The manufacturing process of thick copper circuit boards includes the following steps:
1. Preparation of copper foil: Copper foil is the basic material for making circuit boards, and is usually prepared by calendering or electrolysis. The thickness and material of the copper foil can be customized according to the needs.
2. Making the circuit diagram: using a photolithography machine and a mask plate, the circuit diagram is printed on the surface of the copper foil.
3. Etching: The printed copper foil is placed in an etching solution to etch away the unprotected portion of the copper foil to form the desired circuit pattern.
4. Laminating and pressing: Laminating and pressing several sheets of copper foils according to the design requirements to form a multilayer circuit board.
5. Plating: Plating is applied to the connecting parts of the circuit boards to provide them with high current carrying capacity.
6. Testing and Depaneling: Electrical performance tests are performed on the circuit boards to ensure their reliability; finally, the circuit boards are cut and depaneled according to the requirements.
Advantages of Thick Copper Circuit Boards
Compared with conventional thin-film integrated circuits, thick copper circuit boards have the following advantages:
1. High reliability: Since the base material of thick copper circuit boards is copper foil, it has high thermal and electrical conductivity, so its reliability is high.
2. High stability: The manufacturing process of thick copper circuit boards undergoes strict quality control, which gives them a long service life and stable electrical performance.
Thick copper circuit board suppliers need to pay attention to the following points:
1. Production capacity: The production of thick copper circuit boards requires specialized equipment and skilled workers, so the production capacity of the supplier is a key factor. Suppliers need to have advanced equipment and mature technology to be able to produce high quality thick copper circuit boards.
2. Material selection: The quality and performance of thick copper circuit boards are affected by the materials used. Suppliers need to select high-quality raw materials and electronic components to ensure that the thick copper circuit boards produced have high reliability and long life.
3. Reliability testing: Thick copper circuit boards need to undergo a number of reliability tests during the production process, such as voltage test, impedance test, warpage test, etc. Suppliers need to have a complete set of reliability testing equipment. Suppliers need to have complete reliability testing equipment and capabilities to ensure that each batch of thick copper circuit boards can meet customer requirements.
4. Quality control: Quality control is the key to producing high quality thick copper circuit boards. Suppliers need to establish a comprehensive quality control system, from raw materials into the warehouse to the factory, each link in the strict quality control to ensure that each piece of thick copper circuit boards can meet customer expectations.
5. Technical support: In the production process, the supplier not only needs to provide high-quality raw materials and advanced production processes, but also needs to provide a full range of technical support. This includes technical advice, technical support, troubleshooting, etc., to ensure that customers can get timely help and solutions in the process of use.
In summary, choosing a professional thick copper circuit board supplier needs to consider its production capacity, material selection, reliability testing, quality control and technical support and other factors. only in this way can we ensure that the thick copper circuit boards produced meet customers' expectations and save more time and cost for customers.