310

The STS 310 is a deposition system designed for thin film growth in semiconductor and microelectromechanical systems fabrication. The tool belongs to a class of plasma-enhanced chemical vapor deposition equipment that operates at reduced temperatures compared to thermal CVD. The STS 310 is used to deposit dielectric films such as silicon dioxide and silicon nitride on silicon wafers.

The STS 310 deposits thin films using a plasma-enhanced chemical vapor deposition process. Precursor gases are introduced into a vacuum chamber and a radio-frequency plasma is ignited above the substrate. The plasma dissociates the precursor molecules into reactive radicals that adsorb onto the wafer surface and react to form a solid film. The substrate is typically heated to a controlled temperature to promote surface reactions and film densification without requiring the high temperatures of thermal CVD.

The STS 310 is positioned in the fabrication sequence after cleaning steps and before photolithography or etching. The deposited films serve as insulating layers, passivation coatings, or hard masks for subsequent processes. The tool is used in both front-end-of-line and back-end-of-line processing where low-temperature deposition of high-quality dielectrics is required.

The STS 310 is used to deposit dielectric thin films for MEMS devices, integrated circuits, and optoelectronic components. Common deposited materials include silicon dioxide, silicon nitride, and silicon oxynitride. The films provide electrical insulation, mechanical protection, and chemical barriers in multilayer device stacks.