China Advances in Domestic Production of Ceramic Heaters for Semiconductor Industry

Ceramic Heaters for Semiconductor Industry

As China pushes for self-sufficiency in semiconductor technology, domestic manufacturers are striving to produce advanced ceramic heaters. Ceramic heaters are critical components in chip-making equipment. They ensure precise temperature control during key semiconductor manufacturing processes, making them indispensable in modern fabs.

Why Ceramic Heaters Matter in Semiconductor Manufacturing?
In semiconductor production, wafers undergo processes such as thin-film deposition (CVD, PECVD, ALD) and etching, which require extremely precise and uniform heating. Traditional metal heaters face limitations at high temperatures (above 500 °C) due to thermal expansion and risks of particle contamination.

Advantages of Ceramic Heaters:
Ceramic heaters made from aluminum nitride (AlN), silicon nitride (Si₃N₄), or alumina (Al₂O₃) offer superior performance:
-High thermal conductivity, ensuring uniform heat distribution across wafers.
-Excellent plasma resistance, allowing them to withstand harsh semiconductor processing environments.
-Low thermal expansion, preventing warping and ensuring stability for nanometer-scale chip fabrication.