Products
プロダクトSeki Diamond Systems, a member of Cornes Technologies Limited Japan, offers a range of diamond synthesis platforms for customers engaged in the research and development of advanced carbon-based materials and lab-grown diamond gem production. As Seki Diamond Systems’ distribution arm in North America, Europe and Israel, Cornes Technologies USA offers Microwave Plasma Chemical Vapor Deposition (MP-CVD) platforms to technology partners worldwide who are pushing the boundaries of Materials Research, Gem Production, Quantum Computing, High Power Semiconductors and Diamond Windows & Sensors.
In addition to Seki Diamond Systems’ MP-CVD equipment, the company also distributes and supports hot filament diamond synthesis systems from Blue Wave Semiconductor and offers a broad array of single-crystal diamond seeds and substrates from Excellent Diamond Products (EDP) and laser cutting tools from STPL for core, slicing and final planning and cutting of diamond material.
Our team of Diamond technology experts offer decades of experience growing the most demanding polycrystalline and single crystal diamond material and are available to talk with you about your application.
Seki Diamond Systems
The world’s premier provider of CVD diamond reactors
The broadest, most advanced selection
Seki Diamond Systems is the leading provider of Microwave Plasma Chemical Vapor Deposition (MP-CVD) diamond reactors in the world. Hundreds of these systems have been delivered worldwide. Seki Diamond serves a large global network of leading diamond technology scientists and engineers who employ the systems for advanced research and commercial production in many fields, from semiconductor manufacturing to communications, from defense electronics to test and measurement and more.
Creating artisan lab-grown gem diamonds for the jewelry industry is another significant application for Seki Diamond Systems. Notably, CVD diamonds produced by our systems can match or exceed the quality and characteristics of natural diamonds — at much lower cost.
image2
image3Sales, service, support and more…
As well as supplying leading-edge CVD diamond reactors, Seki Diamond also provides comprehensive customer support, systems integration and after-sale service. The company offers many technical strengths, including:
- R & D and demo facilities
- QC and acceptance testing
- Installation, maintenance and repair
- Process and applications support
- Technical consultation
To learn more — visit the Seki Diamond Systems website.
Diamond Seeds and Substrates
Mosaics and Single Crystal Diamond Plates
Cornes Technologies USA supplies single crystal diamond seeds and substrates fabricated by Excellent Diamond Products (EDP), the world’s leading manufacturer of single crystal diamond for gem and materials research applications. The CVD-grown single crystals are lifted off from seed crystals using a unique ion implantation process. Large mosaic crystals, consisting of multiple mono crystals, can be used for large tool blanks or substrates.
Superior hardness gives these crystals better wear resistance than HPHT. EDP crystals can be applied in optical parts for UV to far IR. They can be exposed to high energy density beams, and the ultra-thin, highly transparent plates serve as excellent X-ray windows. Exceptional hardness, size, purity and numerous other special features make EDP diamond the optimum choice for a broad spectrum of applications.
EDP seeds are far superior for gem applications than HPHT and other seeds cut from larger single crystals for several reasons, including:
- Uniformity: Unlike HPHP seeds, EDP seeds exhibit consistent 100 orientation with far more uniform seed-to-seed growth and stress pattern characteristics. This is essential to establishing uniform processes and recipes for MP-CVD gem applications.
- Low Stress Surfaces: EDP seeds offer unpolished “as grown” surfaces without the subsequent stresses and defects introduced by a polishing process. The unpolished top side exhibits step-flow terrasses of about 100µm long and Ra of approximately 2 µm, which makes them ideal for initiating high-quality gemstone production.
- Large Gem Applications: EDP seeds are available in sizes up to 15mm x 15mm x 0.3mm to address your most aggressive large carat gemstone production needs
- Most Economical: Minimizing cutting and polishing in EDP’s production processes results in both a higher quality and lower cost substrate which result in the highest production yields
Other Advantages of EDP single crystal diamond
- Greater hardness and toughness than natural or HPHT diamond
- Planar substrates with high purity, inclusion free and sector free
- Single-crystal diamonds up to 15mm square
- Mosaic-process diamonds up to 28mm square
- Thickness from 0.01 to 2.5mm, ultra-thin available to less than 50µm
- (110) and (111) plates for tools and electronics
- Laser-cut custom shapes: circles, squares, rectangles, triangles, etc.
- Ideal thermal diffusion coefficient to protect devices from generated heat
- Single- or double-sided polishing available:
Diamond plates and tool blank
image3
tbMany Applications
- Low Resistive Boron Doped Research
- Gem Diamond Production
- Mechanical
- Water jet nozzle orifices
- Wire drawing machine dies
- Surgical diamond blades
- Single Point Diamond Turning (SPDT) blanks
- Milling tool blanks
- Optical
- UV, IR, MW, X-ray windows
- Laser optics components
- Semiconductor
- Heat spreaders
- Sub-mounts for high-power IC & laser diodes
- Electronics
- HEP radiation detectors
- Beam condition monitors
- RF diodes, BJT, FET, MEMS
- Radiotherapy dosimeter
STPL Laser Cutting Systems
Economical laser cutting and planning tools
STPL’s laser cutting products are highly complementary to CTU’s line of Microwave Plasma Chemical Vapor Deposition (MP-CVD) systems used in the production of diamond gems.
STPL’s economical laser cutting and planning tools are often used by CTU’s diamond gem customers in the preparation of materials used for diamond growth as well as in the preparation of roughs grown in CTU’s Seki Diamond Systems MP-CVDs.
Ensuring maximum carat yield requires careful preparation of seeds used in the diamond growth process and the optimization of yields through efficient planning, core and slicing of diamond roughs.
STPL’s laser cutting systems are ideal for lab grown diamond applications.
Applications
- Seed Preparation and Optimization
- Core and Slicing
- Mapping, Planning, Scanning
- Final 3D Diamond Gem Cutting and Faceting
- Marking for Security and Registration
STPL Product Information
- PRIMA GRN-ng laser cutting systems
Untitled
image2 Blue Wave Hot Filament Diamond CVD System
Popular hot filament reactor for many R&D applications
- Customizable 12” diameter, spherical stainless steel water-cooled chamber
- BWS filament assembly for small and large area deposition
- Reaches temperatures of 2500°C and above
- 10-inch quick access door for sample and filament holder loading and unloading
- Multi-flanged chamber for optical windows and accessories mounting
- Base pressure compatibility >5 x 10-2 Torr, can reach ultra high vacuum (UHV) levels
- Maximum baking temperature of 300°C when fitted with copper gaskets
Applications
- Nano and Micro Polycrystalline Diamond Coatings
- Carbon Nanotubes
- Multilayer Graphene Synthesis
The Blue Wave Hot Filament CVD System is fully-customizable and designed for the synthesis of nano- and micro-polycrystalline diamond, graphene, carbon nanotubes, and a variety of other thin film coatings. Intended for affordable and simplified deposition, this hot filament diamond CVD system is used in universities and research labs across the U.S. and around the world. It offers several built-in and custom features that enable users to begin deposition of high quality films within hours of installation.
For detailed product information and suggested configurations/options for specific diamond synthesis applications please contact us.
image1
image3NIRIM Microwave CVD Diamond System
Low-cost Microwave Plasma CVD Reactor
- Control and Monitor Software (Gas Flow, Pressure, Microwave Power, Vacuum, Safety Protection)
- Replaceable Quartz Tube for Mitigating the Risks of Cross Contamination
- Up to 1x1cm2 inch diameter substrate
- Water Cooled Moly sample stage: 800°C to 1100C°
- Mechanical dry pump with base pressure better than 5×10-2
- 1kW, 2.45GHz MW Generator (3 phase 208V)
- Two-Color IR Pyrometer
Applications
- Quantum
- Thermal Management
- Nano Electronics
- Detectors
- MEMS
- Sensors
Blue Wave Semiconductors offers a versatile, low cost NIRIM style microwave plasma chemical vapor deposition system (MPCVD) for synthesis of CVD diamond for research and development. The tool can be used for CVD diamond layer fabrication with a variety of diamond film qualities including epitaxially grown single crystals, polycrystalline, microcrystalline and nanocrystalline coating layers (doped and undoped). Typical growth rates in the range of 0.1 micron/hr to a maximum of 1 micron/hr. Blue Wave MPCVD system provides easily replaceable quartz tube chamber to avoid cross-contamination, such as with boron doping.
