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Vacuum Chambers For Engineered Diamonds

Producers of synthetic diamonds are poised for growth as natural diamond output declines. Many of these gem-quality diamonds will be produced by the chemical vapor deposition (CVD) process, using vacuum chambers from Meyer Tool & Mfg.

How the Vacuum Chamber Works

CVD was patented as a method of lab-grown diamond engineering in 1954, but gained prominence only recently. Today, many gem quality-engineered diamonds are produced by this low-pressure deposition process.
 
Methane and hydrogen are introduced to a vacuum chamber typically held at less than 200 torr. Microwave energy is beamed through a quartz window to initiate a chemical reaction. This frees carbon atoms that bond with a sliver of diamond “seed.”

Vacuum Chamber Requirements for Lab-Grown Diamond Engineering

The process is slow, making yield maximization a key measure. Contamination could stunt diamond growth, lead to imperfections, or prevent growth from starting. Providing the required cleanliness in a vacuum chamber is extremely challenging.
 
The chamber must be opened after every cycle for emptying and re-seeding, and for a tight seal achieved on every closing. Vacuum and gas lines need leak-tight flange connections. Additionally, the quartz window must ensure consistent microwave transmission while being mounted in a way that prevents leaks.

Meyer Tool Has the Fabrication Expertise Needed

A CVD vacuum chamber for engineered diamonds is not something to buy “off the shelf.” Every application has unique demands that need a custom solution. Building such highly specialized equipment necessitates a thorough understanding of materials and surface treatments along with extremely high proficiency in machining and welding. “Building the impossible since 1969,” Meyer Tool has these skills and capabilities

One-Offs? No Problem

At Meyer Tool, our expertise is in building prototypes, one-offs and small-volume production runs. Those leave no room for trial and error or extended development runs. We have to get it right the first time, and that's why we're meticulous in our attention to detail. Our design processes are configured to minimize the risk in your project. Quality is paramount from requirements definition to delivery and beyond. Whether you need a single vacuum chamber for your lab-grown diamond engineering business or several dozen, Meyer Tool is committed to giving you the best equipment for the job.

When You Need Equipment, Talk to the Specialists

The outlook is positive for those engaged in manufacturing engineered diamonds. Mine output is falling while demand keeps rising. However, producing the highest-quality gems takes the highest-quality process equipment. That's why you should talk to Meyer Tool. We understand the highly specialized demands of the CVD process and have the skills and experience to design and build exactly the equipment needed. Contact us today for further information.