Breaking Through the Bottlenecks: Polyimide Materials – A Strategic Pillar for China’s High-End Manufacturing

Thread Content

Breaking through the bottlenecks: Polyimide materials – a strategic cornerstone for China’s high-end manufacturing. Immersive reading in e-readers. Against the backdrop of profound changes in the global technological competition landscape, the semiconductor industry has become a strategic focus in the struggles between major powers. As the international environment becomes increasingly complex, China’s semiconductor materials industry is facing unprecedented development opportunities and challenges. Driven by policy support, the semiconductor materials industry is entering a golden period of development. Looking at the development trajectory of China’s semiconductor materials industry, from the emphasis on developing electronic materials during the Eighth Five-Year Plan period, to the explicit call in the 14th Five-Year Plan to concentrate resources on advancing key components and basic materials, policy support has continued to increase. This policy approach, which moves from the surface to the deeper levels, clearly demonstrates the **degree of emphasis placed on the development of the semiconductor materials industry. According to SEMI statistics, the market size for semiconductor materials in China showed a trend of fluctuating growth between 2012 and 2022. In 2022, the Chinese mainland became the world’s second-largest market for semiconductor materials, a figure that clearly demonstrates the market potential and growth rate of our country in this field. Driven by the international environment, domestic substitution has become imperative. In recent years, economies led by the United States have continuously tightened restrictions on China’s access to advanced chip technologies. In the field of high-end chip manufacturing, key materials such as specialty adhesives have long been monopolized by Japanese and European/American companies, posing a significant risk of supply disruption. The global semiconductor photoresist market is highly monopolized by ***** company, and this bottleneck situation makes the substitution of domestic materials an inevitable choice. It is worth noting that, against the backdrop of the restructuring of the global industrial chain, China is seizing a historic opportunity to take on the transfer of the industrial chain for semiconductor-specific adhesives. This trend provides domestic enterprises with a rare opportunity for development. Polyimide: A strategic material for high-end manufacturing. Among various semiconductor materials, polyimide, as a high-performance functional material, is demonstrating great practical value and potential for development. This material boasts excellent high-temperature resistance, chemical stability, and electrical insulation properties. It also features a low friction coefficient, low friction rate, and low surface free energy, which make it an irreplaceable key material in high-end manufacturing fields such as aerospace and semiconductors. In the aerospace industry, polyimide films are widely used in components such as thermally insulated sapphire windows and thermal insulation panels, thereby enhancing the high-temperature resistance and safety performance of spacecraft. At the same time, polyimide plays a crucial role in various fields such as spacecraft solar cells, thermal insulation components, remote sensing imaging devices, and flexible printed circuit boards. Military applications highlight the strategic value of polyimide materials; their use in the military sector is particularly noteworthy. It is understood that the U.S. Navy has used polyimide-modified plastics as thermal and sound-insulating materials for all surface ships and submarines. The SOLIMIDE modified plastics produced by INSPEC have been used in more than 15 thermal and acoustic insulation systems designated for naval vessels, and this technology is now moving from its introductory phase into a stage of growth. In terms of fiber materials, high-temperature resistant polyimide fibers are among the organic synthetic fibers with the highest operating temperatures; they can be used in environments ranging from 250 to 350°C. They are also among the organic synthetic fibers with the best mechanical properties. The most advanced fourth-generation polyimide resin-based composites can even be used for extended periods at 450°C. However, at present in our country, only first-generation polyimide composite materials are used in small quantities in the outer ducts of aircraft engines; a complete system of materials and manufacturing technologies has not yet been developed, which constitutes one of the bottlenecks restricting the development of high-end equipment in our country. The industrial development faces multiple challenges. At present, the development of the polyimide industry in our country still encounters numerous challenges. Firstly, key raw materials must be imported at high costs, so there is an urgent need to advance technology related to these key raw materials ； Secondly, domestic materials have poor consistency in performance, requiring comprehensive improvements in aspects such as raw materials, formulations, manufacturing processes, and equipment ； Furthermore, the temperature performance of existing domestic materials still needs to be improved, and process and technology upgrades are urgent ； Furthermore, most materials require refrigerated transportation, and latent catalysis technology is not widely adopted, making it difficult to meet military-grade requirements. Especially in the field of photosensitive polyimides, China’s industry still focuses on low-end products such as films; the production volume of photosensitive polyimides is low, and market demand relies heavily on imports, which constitutes another major constraint. Technological innovation opens up new paths for development. In the face of these challenges, the industry is actively exploring new technological approaches. Precision organic synthesis techniques enable superior material consistency by precisely controlling the purity of the synthesized products ； Polymerization control technology aims to achieve controlled grafting and develop functional polymer materials. In application fields, BCB resin shows great potential for use in Low-k interlayer dielectric films, BGA/CSP interlayer dielectric insulating films, and interlayer dielectric films for MCM-D multilayer substrates. Multifunctional modified PI resins offer new solutions for aerospace and military applications by enhancing adhesion and improving EMC packaging performance. Accelerating industrialization: From a market perspective, the industrialization of polyimide materials is accelerating. According to the relevant plans, over the next five years, multiple product lines, including cutting adhesives, underfill materials, conductive silver pastes, environmentally friendly circuit sealants, and PI adhesives, will be put into large-scale production. By the fifth year, it is expected that sales of related products will reach 166.5 million yuan, with cumulative tax contributions exceeding 25 million yuan; the total profit is projected to amount to 76.59 million yuan. This rapid development not only reflects the swift growth in market demand but also demonstrates the significant improvement in China’s industrialization capabilities in the field of high-end materials. Seize the opportunities and create a shared future. Looking ahead, with ongoing policy support, continuous advancements in technology, and growing market demand, China’s polyimide materials industry is set to enter a golden period of development. To achieve breakthrough development, it is necessary for enterprises along the industrial chain to collaborate in innovation, working together on key aspects such as raw materials, production processes, and application development. For industry enterprises, it is necessary to seize the current historical opportunity for domestic substitution, while also thinking in the long term by continuously increasing investment in research and development, breaking through key core technologies, and improving the industrial ecosystem. Only in this way can true autonomy and control over polyimide materials be achieved, providing solid support for the development of China’s semiconductor industry and high-end manufacturing sector. In today’s increasingly competitive globalized environment, breaking through technological bottlenecks that hinder progress is not only crucial for industrial development but also relates to **economic security**. The development path of polyimide materials is a reflection of China’s manufacturing sector’s progress toward higher-end levels, and its success will undoubtedly provide valuable experience for the development of other key materials.