Diffusion Tubes

Semicorex Silicon Carbide Diffusion Tubes are specially engineered hollow components designed to serve as the core reaction chamber within semiconductor diffusion systems. Featuring a unique elongated and tapered geometry, these tubes are inserted directly into furnace heating elements to create a stable, high-purity environment for thermal processing. Their advanced design ensures precise control of temperature, gas flow, and process conditions, which are essential for achieving uniform and repeatable results in semiconductor manufacturing.

Function in Diffusion Systems

In diffusion and thermal processing equipment, the diffusion tube plays a central role in defining the reaction environment. Positioned within the heating zone, the tube acts as a controlled chamber where wafers are exposed to high temperatures and reactive gases.

The Silicon Carbide Diffusion Tube ensures:

A stable and uniform thermal field within the reaction zone

Controlled gas distribution for consistent diffusion or deposition processes

Isolation of the process environment from external contamination

Reliable performance during repeated high-temperature cycles

Its structural integrity and material purity are critical to maintaining process consistency and achieving high device yields.

Optional CVD (Chemical Vapor Deposition) coatings can be applied to further enhance surface purity, wear resistance, and chemical durability, making the tube suitable for the most stringent process requirements.

Advanced Manufacturing with 3D Printing

Semicorex utilizes advanced 3D printing technology to produce diffusion tubes with high precision and complex geometries. This manufacturing approach enables:

Accurate control of tube dimensions and wall thickness

Custom internal and external shapes tailored to specific systems

Consistent quality and repeatability across production batches

Efficient production of both standard and customized designs

The ability to achieve tight tolerances ensures optimal compatibility with furnace systems and precise process control.

Application-Based Selection Guide

Choose Quartz Diffusion Tubes if:

Operating temperatures are moderate (<1200°C)

Cost sensitivity is a primary concern

Processes are well-established and less demanding

Choose SiC Diffusion Tubes if:

High-temperature processes are required (>1200°C)

Thermal uniformity and yield are critical

Long service life and reduced maintenance are priorities

Used in advanced semiconductor, SiC wafer, or CVD systems

Semicorex Silicon Carbide Diffusion Tubes provide a high-performance solution for semiconductor thermal processing systems. With their specialized hollow design, ultra-high purity SiC material, optional CVD coatings, and advanced 3D manufacturing capabilities, they deliver precise control, reliability, and durability. These tubes are a critical component for maintaining stable reaction environments and ensuring high-quality semiconductor production.