Ceramic Dome

1. Product Overview

The Ceramic Dome is a high-performance, precision-engineered component designed for semiconductor deposition and etching equipment. It serves as a critical chamber component that creates a controlled, clean environment for wafer processing.

2. Core Function & Application

The primary role of the Ceramic Dome is to form a clean, inert, and protected chamber environment inside deposition equipment. During the manufacturing process, chemical reactions within this chamber deposit ultra-thin layers of metal, dielectric, or semiconductor materials onto wafers.

• It acts as a containment barrier for the plasma and reactive gases used in processes like PVD, CVD, and etching.
• It maintains the purity and stability of the process environment to ensure uniform deposition and prevent contamination of the wafer.

3. Key Performance Requirements & Advantages

Since the dome is directly exposed to high-energy plasma during deposition and etching processes, it must meet stringent material performance criteria:

• High Plasma Durability: Resists erosion, degradation, and sputtering caused by prolonged exposure to high-energy plasma, minimizing particle generation and extending service life.
• High Purity: Manufactured from ultra-high-purity ceramic materials to eliminate the risk of contamination that could compromise wafer yield and device performance.
• High Dielectric Strength: Possesses excellent electrical insulation properties, allowing it to withstand the high electric fields used to generate and sustain plasma, ensuring process stability and preventing electrical breakdown.

4. Product Variants

The product line includes multiple configurations to suit different equipment and process requirements, including:

• Solid domes for general deposition processes.
• Domes with precision-engineered ports for gas or RF feed-through, tailored for specific tool models.