Mcvd Discs

SIKAIDA Mcvd Discs are core consumables for MCVD reactors, capable of withstanding high-temperature corrosive environments and maintaining dimensional stability and uniform heat distribution during long-term deposition. With a purity ≥99.99%, they offer excellent thermal stability and high precision. Special surface treatments reduce contamination and film adhesion, are compatible with most reactors, are easy to install, and have a long service life.

Materials and Processing: SIKAIDA Mcvd Discs use isostatically pressed high-purity graphite with a purity ≥99.99%, precision-machined using CNC machining centers and other equipment. The surface undergoes a high-purity coating or anti-oxidation treatment, making them widely used in optical fiber manufacturing and semiconductor thin film deposition industries.

Core Advantages

1. High Purity and Low Contamination: McVd Discs utilize 99.99% or higher purity graphite, purified at high temperatures, significantly reducing the risk of metal ion contamination and ensuring stable and qualified processes and products.

2. Excellent Thermal Stability: Low coefficient of thermal expansion and strong thermal shock resistance ensure no cracking or deformation under high-temperature cycling, maintaining stable dimensional accuracy and meeting the high-temperature requirements of MCVD.

3. Uniform Heat Distribution: High thermal conductivity enables rapid temperature response and uniform distribution, supporting the formation of a uniform and dense deposition film, improving deposition quality.

4. Ultra-High Precision: Precision CNC machining strictly controls flatness, parallelism, and hole position tolerances, achieving perfect matching with the reactor and ensuring long-term stable operation of the equipment.

5. Long Service Life: Special anti-oxidation and anti-corrosion surface treatment extends service life under corrosive atmospheres, reducing overall operating costs for customers.

Specifications and Customization Services

1. Graphite Grades

Covering multiple graphite grades: isostatic high-purity graphite (ISO-88, ISO-63, HPG series), molded high-purity graphite (EDM, MG series), and special coated graphite (SiC, PyC, Al₂O₃ coating), suitable for various applications.

2. Surface Treatment Processes

Offering multiple surface treatments: high-temperature halogen purification, CVD protective coating, precision polishing, and resin/asphalt impregnation densification, selectable to enhance product performance as needed.

3. Key Dimensions

Dimensional tolerance: Standard ±0.05mm (customizable ±0.02mm); Surface roughness Ra: Standard 0.8μm (≤0.4μm ultra-smooth surface available).

Ordering & Service

Mcvd Discs support customization of various drawings and samples, including STP and DXF; standard products take 2-3 weeks to deliver, customized samples take 4-6 weeks; ISO9001:2015 certified, third-party testing reports are available, and payment methods include T/T and L/C.

Product Applications

Mcvd Discs have wide applications, including deposition processes in optical fiber preform manufacturing, semiconductor thin film deposition, MOCVD epitaxy, special glass and crystal growth, scientific research, and photovoltaic new energy.

Frequently Asked Questions

Q1: What are the main performance indicators of graphite Mcvd Discs?

A1: Core indicators include: graphite purity (typically ≥99.99%), ash content, bulk density, compressive strength, coefficient of thermal expansion, thermal conductivity, and dimensional accuracy and surface roughness after processing. These indicators collectively determine its stability, service life, and impact on the quality of the deposited film in high-temperature corrosive environments.

Q2: What is the service life of the deposition disc? How can its service life be extended?

A2: Service life depends on specific process conditions (temperature, atmosphere, corrosiveness, etc.), typically ranging from several to dozens of process cycles. To extend service life, we recommend: 1) Selecting a coating type suitable for the process atmosphere (e.g., SiC coating for highly oxidizing environments); 2) Following proper installation, usage, and cooling procedures; 3) Regularly cleaning and maintaining the surface to avoid mechanical damage.

Q3: Do you support complete customization based on our reactor drawings?

A3: Yes, we offer comprehensive customization services. You can provide detailed reactor interface drawings, process temperature profiles, and atmosphere requirements. Based on this, we will select materials, design the structure, and perform precision machining to ensure the deposition plate perfectly matches your equipment and optimizes process performance.