High TG PCB sheet is a PCB sheet with a high glass transition temperature (Tg) and is usually used to manufacture electronic equipment that needs to withstand high temperature environments.
High TG PCB sheets have excellent heat resistance and mechanical properties and can withstand high temperatures and harsh environments, so they are widely used in automotive electronics, aerospace, industrial control and other fields.
During the manufacturing process, high TG PCB sheets undergo precision processing and strict quality control, ensuring their excellent performance and stability.
introduction
With the rapid development of electronic technology, printed circuit boards (PCBs), as the core component of electronic equipment, have increasingly higher performance requirements. As a new material with excellent performance, high TG PCB board has been widely used in high-end electronic equipment. This article will explain high TG PCB sheets in detail from the perspective of PCB manufacturers, hoping to help readers better understand and apply this new material.
Overview of High TG PCB Boards
- Definition
High TG PCB board refers to a polymer substrate with a high glass transition temperature (Tg), usually with a Tg value above 150°C. Compared with ordinary FR-4 sheets, high TG sheets have higher heat resistance, moisture resistance, chemical corrosion resistance and better dimensional stability.
- Classification
According to different Tg values, high TG PCB boards can be divided into three categories: medium Tg (150℃~170℃), high Tg (170℃~200℃) and ultra-high Tg (above 200℃). Plates with different Tg values have different performance characteristics and are suitable for different application scenarios.
High TG PCB board performance characteristics
- Heat resistance
High TG PCB boards have high heat resistance and can maintain stable performance in high temperature environments. This makes it advantageous in scenarios where high-end electronic equipment such as servers and communication equipment require long-term high-temperature operation.
- Moisture resistance
High TG PCB boards have lower moisture absorption and can maintain better performance in humid environments. This is very important for electronic equipment used in humid environments, and can effectively prevent performance degradation and failure caused by moisture absorption.
- Chemical resistance
High TG PCB sheets have good corrosion resistance to common chemicals such as acids, alkalis, salts, etc. This makes it have broad application prospects in some special environments such as chemical industry, petroleum and other industries.
- Dimensional stability
High TG PCB sheets have good dimensional stability and are not easily deformed after being heated. This is of great significance to ensure the stability and reliability of electronic equipment.
Application fields of high TG PCB sheets
- High-end electronic equipment
High-end electronic equipment such as servers, communication equipment, aerospace equipment, etc. have higher performance requirements for PCBs and require the use of high TG PCB sheets to ensure the stability and reliability of the equipment.
- Special environment electronic equipment
Electronic equipment used in special environments such as moisture and corrosion needs to use high TG PCB sheets with high moisture resistance and corrosion resistance to ensure long-term stable operation of the equipment.
- Automotive electronics
With the continuous improvement of automotive electronics, automotive PCBs have increasingly higher requirements for heat resistance, moisture resistance and other properties. High TG PCB sheets can meet these requirements and therefore have broad application prospects in the field of automotive electronics.
High TG PCB board production technology and processing methods
- Production process
The production process of high TG PCB boards mainly includes raw material preparation, mixing, pressing, curing and other steps. Among them, selecting appropriate raw materials and optimizing production process parameters are the keys to improving plate performance.
- Processing methods
The processing method of high TG PCB sheets is similar to that of ordinary FR-4 sheets, mainly including cutting, drilling, electroplating, lamination and other processes. During the processing, attention needs to be paid to controlling process parameters and operating details to ensure processing quality and finished product performance.
Market prospects and development trends
- Market prospects
With the continuous development of high-end electronic equipment and special environment electronic equipment, the market demand for high TG PCB sheets will continue to grow. At the same time, with the improvement of environmental awareness and the development of green manufacturing technology, environmentally friendly high TG PCB sheets will become an important development direction of the future market.
- Development trends
In the future, the development of high TG PCB boards will show the following trends: First, develop towards higher Tg values to meet the needs of higher-end electronic equipment; second, develop high TG PCB boards with multiple functions, such as thermal conductivity, electrical conductivity etc.; The third is to promote the development of green manufacturing technology and reduce energy consumption and emissions in the production process.
Summary and suggestions
This article explains in detail high TG PCB boards from the perspective of PCB manufacturers, including its definition, classification, performance characteristics, application fields, production technology and processing methods. Through the introduction of this article, I believe readers will have a deeper understanding and understanding of high TG PCB boards. When selecting and using high TG PCB boards, readers are advised to pay attention to the following points: first, choose the appropriate Tg value according to actual needs; second, pay attention to the environmental performance of the material; third, choose a PCB manufacturer with mature production technology and rich experience. cooperate.