Phenyl silicone oil is used as a key functional material in the electronics industry because of the introduction of phenyl in its molecular chain, which has excellent high temperature resistance (>250℃), low volatilization, high refractive index, UV resistance and electrical insulation properties.First of all, in the field of semiconductor packaging, phenyl silicone oil, as the substrate of potting glue, can not only maintain dimensional stability at high reflow soldering temperatures, but its high volume resistivity (≥1010 Ω·cm) and breakdown strength (>45 kV/2.5mm) can effectively isolate moisture and electromagnetic interference and extend the life of the chip; at the same time, its adjustable refractive index (1.47-1.55) can be matched with the chip and lens to reduce optical loss. It has been widely used in LED COB and CSP packaging, making the life of L70 exceed 100,000 hours.
Secondly, in high thermal density scenarios such as 5G base stations and new energy battery packs, phenyl silicone oil is made into a thermally conductive interface material (TIM).Its high viscosity and temperature coefficient can keep it soft and oil-free from -50℃ to 200℃, fill the microscopic gap between the heating element and the heat sink, and the thermal conductivity reaches 3-5 W/(m·K), which helps the power device dissipate heat quickly and prevents hot spot failure.In addition, phenyl silicone oil with low vapor pressure is also used as a high⁻vacuum diffusion pump oil to meet the needs of semiconductor evaporation, ion implantation and other processes for 10-2 Pa-level clean vacuum.
In the field of photoelectric display, Shenzhen enterprises have developed a “phenyl silicone oil + quantum dot” composite packaging adhesive, which uses its high refractive index and anti-ultraviolet yellowing characteristics to achieve a wide color gamut display NTSC color gamut value of 115%, breaking the monopoly of foreign technology.With the rise of emerging applications such as MicroLED and automotive laser lighting, it is expected that China's LED packaging adhesive market will account for 40% of the world in 2025, and the demand for high refractive index phenyl silicone oil will increase by 300% annually.It can be seen that phenyl silicone oil is becoming one of the core materials to promote the upgrading of high-end electronic manufacturing with its multiple functional properties.
For more information, please click：Phenyl Methyl Silicone Oil IOTA 255 - IOTA CORPORATION LTD.
