Abstract Ten years ago, Silicon Valley had the hope of becoming the world's solar panel manufacturing center, but with the increasingly fierce price competition from overseas, especially the rise of China, the hope of Silicon Valley was quickly shattered. So, the founder of Nanosolar, a large emerging Silicon Valley company...
Ten years ago, Silicon Valley had the hope of becoming the world's solar panel manufacturing center, but with the increasingly fierce price competition from overseas, especially the rise of China, the hope of Silicon Valley was quickly shattered. Therefore, the founders of Nanosolar, a large Silicon Valley startup, began to apply their expertise to new technologies and hope to explore new paths. 
Jeremy Shores (left) and R. Martin Rosenson, two founders of Diamond Foundry, San Carlos, California.
Diamond Foundry's furnace for processing diamond materials.
In a high-intensity plasma flow field, a continuous carbon atom is placed on a thin piece of natural diamond, and the diamond can "grow".
On Wednesday, a team of engineers and scientists led by R. Martin Roscheisen, one of the founders of Nanosolar, announced that they have developed a more advanced technology for the production of diamonds, partly derived from the technology used to make electronic wafers and solar chips. . In a high-intensity plasma flow field, a continuous carbon atom is placed on a thin piece of natural diamond, and the diamond can "grow".
The earliest synthetic diamonds appeared in the early 1950s, and the commercialization of synthetic diamonds to date has produced at least ten companies in the manufacture of diamonds for commercial or industrial use.
But Diamond Foundry claims that through major patented technology breakthroughs, they can synthesize high-quality diamonds faster and at lower cost.
The company's founders say the new technology can "cultivate" diamonds that are of a quality comparable to the top natural stones.
Diamond Foundry is headquartered in San Carlos, California. It is not the first company to try to make diamonds by chemical vapor deposition, by depositing carbon atoms in a strong plasma field.
According to Mr. Roscheisen, the new technology can produce a large number of diamonds of class IIa, which is only 1% to 2% of pure white diamonds in natural diamonds. Other manufacturers are currently able to manufacture Class IIa gems, but the Diamond Foundry team says their technology is more efficient in "cultivating" diamond atomic materials layer by layer.
Diamonds are one of many forms of carbon. According to Mr. Roscheisen, researchers at Diamond Foundry have spent years researching this new technology, based on a new shape of plasma source, which produces ten times more power than other technologies. By transforming into this "pancake" shaped plasma, they increase the formation efficiency of the diamond structure and greatly increase the speed of synthetic diamonds. Diamond Foundry can synthesize pure diamonds 150 times faster than existing technology.
Mr. Roscheisen said, “This means we can make 100% white pure diamonds at the same speed as diamond miningâ€.
The specific production process is based on a very thin piece of natural diamond, adding carbon atoms layer by layer and slowly expanding the diamond layer. According to Mr. Roscheisen, laboratory experts can tell that the diamond is artificial because it is a rare diamond in its natural state. As long as you see a large number of such diamonds appear, it must be artificial. But looking at one is hard to tell.
“Jewelry experts and gemologists can't tell,†Mr. Roscheisen added. “They can't see the difference with natural diamonds.â€
There are many ways for synthetic diamonds, including high-pressure, high-temperature, explosive explosions to make diamond nanocrystals, and ultrasonics to make micron-sized diamond crystals, but there is no such chemical vapor deposition method that is widely used to make semiconductors and solar cells.
Mr. Roscheisen said the company will purchase carbon credits to achieve zero carbon emissions, and this shows that the company can provide a sustainable alternative to traditional diamond mining.
Leonardo DiCaprio is one of the investors in this company. He invested in Diamond Foundry because he has always been concerned about some of the ethical issues in the traditional diamond mining industry.
In order to break the traditional diamond dealer's control of the market, Diamond Foundry also established an online mall to cooperate with famous jewelry designers to launch diamond jewelry. This is primarily linked by Ethical Metalsmiths, an organization that encourages jewelry makers to make more ethical and environmental challenges.
Diamond Foundry also sells diamonds to industrial markets, scientists and diamond wholesalers. Mr. Roscheisen said that they hope that PhD students around the world will be able to get diamonds more easily.
The new company has a shiny list of investors, including Zynga's founder Mark Pincus, Twitter founder Evan Williams, Sun's founder, Google's early investment Andreas Bechtolsheim, movie star Leonardo DiCaprio, and Facebook founder Andrew McCollum. (Translation: Molly Wu, graduated from the School of Journalism and Communication, Nanjing University, now working in Shanghai)
Diamond Electroplated Grinding Wheel
DIY,special
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