On March 9, 2026, Shanghai, China - With the rapid development of 5G communication, artificial intelligence, and semiconductor technology, the demand for high-end electronic packaging materials has surged. Recently, Zhejiang Hesheng Silicon Industry, a leading domestic organic silicon material enterprise, announced that its independently developed high-purity electronic grade ethyl silicone oil has successfully passed the certification of the Semiconductor Equipment and Materials Institute (SEMI), marking China's achievement of independent control of key materials in the high-end electronic packaging field.


Technological breakthrough: solving the bottleneck problem
This product adopts potassium based alkaline catalytic process and precise molecular weight control technology to reduce the metal ion content of ethyl silicone oil to below 0.5 ppm, and control the molecular weight distribution (Đ) between 1.8-2.0, reaching the international leading level. Its core advantages lie in:


Ultra low volatile matter: The volatile matter is less than 0.3% after 3 hours at 150 ℃, meeting the long-term thermal stability requirements of chip packaging;
Excellent dielectric properties: Volume resistivity greater than 1 × 10 ¹⁵Ω· cm, suitable for high-frequency and high-speed signal transmission scenarios;
Wide temperature range adaptability: Maintain fluidity within the range of -70 ℃ to 300 ℃, suitable for equipment operation in extreme environments.
Application scenarios: From 5G base stations to semiconductor manufacturing
At present, this product has been widely used in 5G base station thermal interface materials and advanced semiconductor packaging processes by companies such as Huawei and SMIC. According to industry data, the market size of electronic grade ethyl silicone oil in China will reach 3450 tons by 2025, with high-end models accounting for over 60% and a compound annual growth rate of 18.7%. The Technical Director of Hesheng Silicon Industry said, "Our products have achieved import substitution, reducing the packaging cost of a single 5G base station by about 15%, while significantly improving signal transmission efficiency. ”


Industry Impact: Promoting Green Transformation of the Industrial Chain
It is worth mentioning that the product has passed the full lifecycle carbon management certification, and the carbon footprint per unit product has been reduced by 22% compared to traditional processes. With the implementation of policies such as the "Guidelines for the Development of New Materials Industry", domestic enterprises are accelerating the layout of bio based ethyl silicone oil research and development. It is expected to achieve commercial production by 2027, further consolidating China's position in the global silicone value chain.