In the race towards industrialising high-end diamond materials, the performance of MPCVD (Microwave Plasma Chemical Vapour Deposition) equipment serves as the pivotal factor determining product dimensions, quality, and production efficiency. The HMPS-9750S MPCVD system represents Wattsine's industry-specific development of premium equipment. Through multi-dimensional technological breakthroughs, it has emerged as a formidable contender in the realm of large-scale, high-performance diamond material fabrication.

01 Foundational Independent Technology, Breakthrough Structural Design


The autonomy of core technologies constitutes the bedrock of equipment competitiveness. The HMPS-9750S MPCVD system is entirely self-developed by Wattsine, possessing comprehensive proprietary intellectual property rights. Mastery of core technologies from foundational design to functional implementation eliminates risks associated with external dependency.

Structurally, it employs a ‘next-generation large-volume bottom-fed circular working chamber’. Through precise simulation and engineering design, it achieves stable handling of ultra-high-capacity microwave power. This design not only expands process adjustability but also enables high-power, large-area deposition processes, laying the hardware foundation for large-size diamond production.



02 Maximising Process Performance: Unlocking High-Quality Large-Scale Diamond Production


For diamond synthesis, ‘power, uniformity, and adaptability’ constitute the core performance metrics. The Wattsine HMPS-9750S MPCVD system achieves breakthroughs across multiple dimensions:

- Microwave System Core Output: Equipped with a 75kW high-power microwave source supporting 10-100% continuous adjustment with power stability ≤1%; 915MHz microwave frequency stability controlled within ±50ppm. Combined with a manual three-pin tuner and short-circuit piston, precise power regulation becomes standard.

- Industry-leading deposition capability: Utilising Tm02 dual-mode discharge technology, it achieves a discharge diameter ≥300mm and uniform deposition zone diameter ≥200mm. This enables stable production of nanocrystalline/ultrafine nanocrystalline diamond on substrates exceeding 6 inches, while also meeting the fabrication demands for high-end products such as optical-grade CVD diamond windows and CVD single-crystal diamond heat sinks. It accommodates diverse high-end application scenarios.

03 Enhanced by a Stable Environment, Ensuring Process Consistency

The high-quality preparation of diamond hinges upon an exceptionally stable process environment. The configuration of the Wattsine HMPS-9750S MPCVD equipment in this regard is nothing short of exacting:

- Ultra-clean vacuum system: The HMPS-9750S MPCVD system employs a combination of two-stage rotary vane vacuum pumps, molecular pumps, and Roots pumps, achieving an ultimate vacuum of ≤6×10⁻⁶ Torr, a vacuum leak rate of ≤5×10⁻¹⁰ Pa·m³/s (He), and a pressure rise rate of ≤1 Pa/h (12-hour average); Operating pressure spans 8–220 Torr with precision control within ±0.1 Torr—this pristine, stable vacuum environment fundamentally prevents impurities from compromising diamond quality.

- Precisely matched auxiliary systems: The HMPS-9750S MPCVD equipment employs a large-area oxygen-free copper water-cooled sample platform (Φ≥600mm) combined with a molybdenum base (Φ≥200mm), balancing heat dissipation efficiency and load-bearing capacity. The temperature measurement system covers 300℃-1475℃ (monochromatic/bichromatic options available), accommodating wide-temperature-range process requirements. The gas delivery system supports H₂/CH₄/N₂/O₂/Ar gases (optional) with expandability, paired with imported high-precision MFCs to achieve highly reliable gas ratio control.



04 Dual Excellence in Operational Safety and Maintenance, Reducing Overall Production Costs


The ‘usability’ of high-end equipment directly impacts production efficiency and long-term costs. The HMPS-9750S MPCVD system from Wattsine exemplifies user-centric design in this regard:

- Substantially reduced operational and maintenance costs: Plasma-shielded quartz window design + air-cooled quartz window dissipation minimises window wear and maintenance frequency; - Effluent deposits within the reaction chamber are easily cleaned, eliminating complex chamber purging procedures and substantially reducing equipment downtime for maintenance.

- Enhanced operational safety: Utilising a PLC control system coupled with intelligent software, it supports both manual and automatic dual-mode operation to adapt to diverse production scenarios. Additionally, it incorporates multiple safety interlocks and tiered access control, providing comprehensive protection from operational procedures to personnel permissions, thereby mitigating risks from operational errors.

From proprietary technology to process performance, and from stable operating environments to maintenance assurance, the Wattsine HMPS-9750S MPCVD system delivers comprehensive advantages. It not only fulfils the requirements for producing large-sized, high-quality diamonds but also lowers industrialisation barriers through its cost-reducing and efficiency-enhancing design. This equipment stands as a pivotal tool in advancing the transition of high-end diamond material production from laboratory research to industrial-scale manufacturing.