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What is FR4?
FR4 is the name of a type of epoxy glazing material. fr stands for flame retardant. 4 refers to the factors that differentiate it from other materials. FR4 means two things.
The material.
As a construction material, it refers to epoxy laminates reinforced with glass fibers. Used to make FR4 printed circuit boards.
Evaluation.
China fr4 pcb assembly is also a unit of evaluation. Epoxy laminates are classified. This classification shows the basic quality of the epoxy resin board.
This classification helps to determine the quality of different types of materials and designs of slabs.
What is FR4 PCB Assembly?
A circuit board with FR4 is called an FR4 PCB (fr4 printed circuit board). China fr4 pcb board is a type of printed circuit board that mainly uses FR4 boards. Originally, FR4 was used as an insulating layer for the PCB. Next FR4 manufacturer adds a layer of copper to both sides of the FR4 board. This makes it a CCL (copper clad laminate). Thanks to FR4, CCL acts as an insulating material. FR4 gives PCBs their strength. In addition, they perfectly absorb moisture and resist fire. This is why these boards are very popular in the market. There is a high demand for FR4 for PCB assembly. FR4 printed circuit boards are compact and easy to design. FR4 boards are popular because they are cheap and can be used in many electrical devices, GreensTone is an professional China fr4 pcb board manufacturer which you can trust.
China FR4 PCB Assembly is widely used in many complex devices due to its cost-effectiveness and ease of availability. FR4 circuit board manufacturing is a specialized process that requires expertise and precision. As a trusted FR4 manufacturer and contract electronics manufacturing factory, we use cutting-edge technology to produce high-quality FR4 PCBs that meet the needs of various industries. Our China FR4 PCBs are well-suited for applications that require endurance and durability.
For instance:
Screw terminal strips
Transformers
Relays of electric systems
Electric switches
Washers
Standoffs
Arc shields
Thickness | The thickness of an FR4 sheet varies depending on your device design. normally, you will require an FR4 PCB with a thickness of 0.5mm to 6.4mm. 0.8mm,1.2mm,1.6mm,2.0mm is common to use. |
Impedance Matching | The impedance matching is important in high-frequency PCB. It helps to maintain the function of the board of directors. It also determines the capacitance of the layers in multi-layered boards. |
Space & Flexibility | When you design your board with FR4 material, you will find most of the engineers prefer thinner sheets as they take less space and are more flexible. |
Weight of the FR4 | The thickness of the board determines its weight. For products with lighter weight request, it’s better to choose FR4 boards with thinner thickness. |
Thermal Conductivity | The value of the thermal coefficient of the dielectric constant is determine the temperature management of the FR4. However, FR4 is heat resistant so that it can be widely used. |
