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Engineered in Surat, Gujarat by MARS IMPEX. Next-generation Microwave Plasma Chemical Vapor Deposition systems delivering high diamond growth yield, Type IIa purity, and exceptional repeatability for fine gems, semiconductor heat sinks, and optical elements.
Microwave Plasma Chemical Vapor Deposition (MPCVD) is the worldwide gold standard for synthesizing gemological-quality Type IIa diamonds and ultra-high thermal conductivity semiconductor diamond wafers. Unlike HPHT which uses massive hydraulic presses and metallic catalyst solvents, MPCVD operates cleanly in a high-purity vacuum atmosphere.
Inside the resonant microwave chamber, methane (CH4) and hydrogen (H2) gases are ionized by 2.45 GHz or 915 MHz electromagnetic waves. Hydrogen radicals selectively etch any non-diamond graphitic carbon, while reactive carbon radicals deposit epitaxially onto high-purity diamond seed plates at rates of 10 to 35 μm per hour.
Produces ultra-clear, nitrogen-free diamonds (D-F color grade) ideal for jewelry markets.
Unmatched thermal conductivity for 5G GaN power amplifiers and quantum sensing.
Detailed engineering data for Mars Impex standard and high-capacity microwave plasma reactors.
| Generator Power | 6.0 kW – 10.0 kW (Magnetron / Solid-State) |
| Substrate Stage Diameter | Ø 50 mm (2") – Ø 100 mm (4") |
| Seed Capacity Per Run | 15 – 45+ Diamond Seeds |
| Growth Rate | 10 – 35 μm / hour (Single-Crystal) |
| Operating Pressure | 80 – 250 Torr |
| Substrate Temperature | 850 – 1200 °C (Optical Closed-Loop) |
| Gas Delivery Channels | 4-Channel Digital MFCs (CH4, H2, O2, N2) |
| Chamber Construction | Double-Walled Water-Cooled SS316L |
| Generator Power | 30 kW – 60 kW Industrial Microwave |
| Substrate Stage Diameter | Ø 150 mm (6") – Ø 200 mm (8") Wafers |
| Seed Capacity Per Run | 100+ Diamond Seeds / Large Wafers |
| Growth Rate | Up to 40+ μm / hour |
| Vacuum Integrity | < 1 × 10-6 Torr Base Vacuum |
| Cooling System | High-Flow Closed-Loop DI Chiller |
| Automation Architecture | Industrial PLC + SCADA Remote Telemetry |
| Target Application | Semiconductor Wafers & Mega-Yield Gemstones |
Explore how our reactors power applications from Surat's gemstone market to global semiconductor cooling.
Gemstones
Cultivating high-clarity, Type IIa single-crystal diamonds with high growth rate, minimal internal strain, and ethical sustainability.
Semiconductors
With diamond's thermal conductivity of 2200 W/mK, our wafers prevent thermal throttling in 5G GaN RF amplifiers and EV power modules.
Laser Optics
Ultra-low absorption CVD diamond optical exit windows and infrared domes designed for multi-kilowatt CO2 and fiber lasers.
Speak directly with our engineering team in Surat to customize substrate size, microwave generator, and gas delivery.