What factors should be considered when selecting high-frequency PCB materials for PCB manufacturing?
Release time:
2025-02-20
The following will introduce the main considerations for selecting suitable board materials: 1. Manufacturability: For example, how are the multiple pressing performance, temperature performance, CAF/heat resistance, mechanical toughness (adhesion) (good reliability), and fire rating.
In actual engineering operations, the selection of high-frequency PCB boards in PCB factories seems simple, but there are still many factors to consider. Today, I will introduce the factors to consider when selecting high-frequency PCB materials during PCB design. Let's take a look!
The following will introduce the main considerations for selecting suitable materials:
1. Manufacturability:
For example, how are the multi-press performance, temperature performance, CAF/thermal resistance, mechanical toughness (adhesion) (good reliability), and fire rating.
2. Various performances compatible with the product (electrical performance, stability, etc.):
Low loss, stable Dk/DF parameters, low dispersion, small variation coefficients with frequency and environmental changes, small tolerances for material thickness and resin content (good impedance control). If the wiring is long, consider low roughness copper foil. On the other hand, simulation is required in the early stages of high-speed circuit design, and the simulation results serve as a reference standard for the design.
3. Timely availability of materials:
Many high-frequency materials have very long procurement cycles, even 2-3 months; except for the conventional high-frequency material RO4350 which is in stock, many high-frequency boards need to be provided by the customer. Therefore, high-frequency materials need to be communicated with the PCB manufacturer in advance to prepare materials as early as possible.
4. Cost factors:
Look at the price sensitivity of the product, whether it is a consumer product or applications in communications, medical, industrial, or military.
5. Applicability of laws and regulations:
It must be integrated with the environmental protection regulations of different countries to meet requirements such as RoHS and halogen-free.
Among the above factors, the operating speed of high-speed digital circuits is the main factor considered by PCB manufacturers when selecting PCBs. The higher the circuit speed, the smaller the selected pcbdf value should be. Medium-low loss circuit boards are suitable for 10Gb/s digital circuits; low loss boards are suitable for 25Gb/s digital circuits; ultra-low loss boards will adapt to faster high-speed digital circuits, with speeds reaching 50GB/s or higher.
Related News
Why are most PCB circuit boards green, while some are black?
The color of the PCB surface is actually the color of the solder mask. The solder mask can prevent the occurrence of component soldering errors....
2025-02-20
Summary of PCB (Printed Circuit Board) Knowledge
PCB circuit board (printed circuit board), also known as printed circuit board, printed wiring board, abbreviated as printed board...
2025-02-20
What factors should be considered when selecting high-frequency PCB materials for PCB manufacturing?
The following will introduce the main considerations for selecting suitable board materials: 1. Manufacturability: For example, how are the multiple pressing performance, temperature performance, CAF/heat resistance, mechanical toughness (adhesion) (good reliability), and fire rating.
2025-02-20
Before the advent of PCBs, circuits were composed of point-to-point wiring. This method had very low reliability...
2025-02-20
Classification and Selection of PCB High-Frequency Board Materials
The PCB high-frequency board refers to a special circuit board with a higher electromagnetic frequency, used for high frequencies (frequency greater than 300MHZ or wavelength less than 1 meter)...
2025-02-20
Shantou Huaxin Electronic Technology Co., Ltd
Shantou Huaxin Electronic Technology Co., Ltd
Shantou Address: Huaxin Science and Technology Building, Pengling Road, Chenghai District, Shantou City
Shantou Office Address: No.61 Pengling Road, Chenghai District, Shantou City (directly opposite China Construction Bank)
Zhejiang Address: Building 8D, U Valley, Liandong, Shenzhou Road, Yiwu City, Zhejiang Province
Messages
* Note: Please be sure to fill in the information accurate phone and E-mail, and keep the communication open, we will get in touch with you as soon as possible