With the rapid development of 5G communication, smart interconnection, remote control and other technological electronic industries, the demand for PCB de alta frecuencia industry increase continuously and rapidly. At the same time, people’s requirements for the number of layers, weight, precision, materials, and color and reliability are getting higher and higher.
However, due to the fierce market price competition and the rising trend of material costs, more and more PCB manufacturers are monopolizing the market with low prices in order to enhance their core competitiveness. It’s to reduce material costs and process production costs behind these ultra-low prices, which makes PCBs cracks, scratches, precision and performance non-compliant, also it seriously affect the solderability and reliability of the product.
Two Ways to Distinguish the Quality of High-Frequency PCBs
There are two ways to distinguish the quality of the PCB high-frequency boards: the first method is to distinguish and judge from the appearance, and the other is to judge from the quality specifications of the PCB high-frequency board itself.
1. Distinguish the Quality of High-Frequency PCBs from the Appearance
1.1 Standard rules for size and thickness
The thickness of the circuit board is different from that of the standard PCB high-frequency board. Customers can measure and check the thickness and specifications of their own products.
1.2 Light and color
The external PCB high-frequency board is covered with ink, and the circuit board can play the role of insulation. If the color of the board is not bright and the ink is less, the insulation board itself is not good.
The circuit board has many parts. If the welding is not good, the circuit board whose parts are easy to fall off will seriously affect the welding quality of the circuit board. The appearance is good. It is very important to identify carefully and have a strong interface.
2. High-Quality High-Frequency PCBs Need to Meet the Following Requirements
- There is no additional electromagnetic radiation;
- The copper skin is not easy to fall off under high temperature;
- The mechanical properties of the surface must meet the installation requirements;
- High temperature, high humidity and resistance to special environments should also be considered;
- The phone is required to be easy to use after the components are installed, that is, the electrical connection must meet the requirements;
- The copper surface of the PCB high-frequency board is not easy to oxidize, which affects the installation speed, and it will be broken soon after being oxidized;
- The line width, line thickness, and line distance of the line meet the requirements to prevent the line from heating, breaking, and short-circuiting;
- The shape is not deformed, so as to avoid deformation of the shell and dislocation of screw holes after installation. Now it is all mechanized installation, the hole position of the PCB high-frequency board and the deformation error of the circuit and the design should be within the allowable range.
PHILIFAST has produced high frequency PCB for many years, has rich production experience, and reserves a large number of Rogers series PCB materials, such as Rogers 4350B, Rogers 4003C, Rogers 3003, RT5880, RT5870, ect.
