FPC series article directory
4. The difference between rolled copper and electrolytic copper for FPC substrates
5. Auxiliary materials for FPC
7. Introduction to the production process of FPC
8. Introduction to the production process of R-FPC
9. Development and application of FPC
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9，FPC的发展及应用
The basic knowledge of FPC has been briefly introduced before. Today we will talk about the development and application of FPC in China:
In 1963, DuPont of the United States obtained the invention of polyimide (PI) film , actually produced PI film products in 1965, and was the first to realize commercialization in the early 1970s.
This kind of PI film product that can be used as an FPC insulating base film is named "Kapton". DuPont's first all-benzene type PI film substrate in the world has been monopolizing for a long period of time (the mid-to-late 1980s) Market for Flexible Printed Circuit Substrates.
In the early 1970s, the PCB industry in the United States first commercialized the FPC industry, which was mainly used in military electronic products at first, and the United States became the birthplace of the world's industrialized FPC.
In the 1980s, some rigid PCB companies and some research institutes in China started the research and development and production of FPC, which were mainly used in military products, computers, cameras and other products. The production of FPC in mainland China seemed sporadic, scattered, mysterious, and not yet Mass production has been formed, and papers on flexible boards are occasionally published, including the technology of rigid-flexible multilayer printed boards.
Before 1997, there was no statistics on FPC production in mainland China, and many manufacturers had not really involved in the field of FPC production. It was not until the end of the 1990s that well-known companies such as Foxconn, Qisheng, Yaxin, and Anjieli invested and built factories in mainland China. , Chinese talents began to get in touch with the FPC business, but in the FPC industry, both technical and management talents are very few. Private enterprises only began to rise in May 2000. The real large-scale ones emerged in 2003-2004. A large number of private enterprises are engaged in FPC manufacturing.
At the beginning of the 21st century, with the continuous development of China's manufacturing industry, the market demand for FPC continued to increase. Especially in the field of handheld mobile devices, such as smart phones and tablet computers, the advantages of FPC as a connecting cable have gradually attracted people's attention. After 2013, China's FPC industry has ushered in a stage of rapid growth , and the number of domestic FPC manufacturers has surged. Compared with traditional rigid boards (PCBs), FPCs are more flexible, thinner, and have higher adaptability. They are used in many high-end electronic products. are widely used. According to market research data, China's FPC market has become the largest market in the world, with a market share of more than 60%.
In the past few years, FPC has gradually broadened its application scope, from the mobile device market to automobiles, industrial automation, medical technology and other fields, which has also brought huge development opportunities for China's FPC industry. The detailed application fields are shown in the figure below :
The innovative functions of smartphones will push the use of FPC to a new level : the arrival of the full-screen era is expected to promote the re-layout of FPC in the entire industry chain of mobile phone modules, and the wide application of flexible OLED screens will greatly stimulate the demand for FPC with flexible features. Fingerprint recognition will fully penetrate Drive the demand for FPC boards to increase, and the demand for wireless charging for FPC coils will also increase significantly;
The trend of automotive automation, networking, and electrification has bred new opportunities in the FPC market : the cost of automotive electronics continues to increase, bringing new growth momentum to FPC boards, and promoting a substantial increase in FPC output value; the rapid expansion of wearable devices has led to the birth of thin and light FPCs Demand: FPC has a high degree of fit with wearable devices. The rise of the wearable market, especially VR/AR technology, will make FPC one of the biggest beneficiaries.
While FPC application scenarios are becoming more and more extensive, higher process requirements are also put forward for FPC. At present, the minimum line width and line spacing of quick distribution is 2mil, and the minimum aperture of 0.075mm has been mass-produced . With the increasing market requirements for FPC The higher the number of FPC layers, the smaller the line width and line spacing and aperture, and the better the flexibility of the material. Therefore , it is foreseeable that the FPC industry will continue to show continuous growth in the next few years. The market has good potential and prospects in many aspects such as technological improvement, supply and demand balance, and external environment.