Trujillo will be a world center for the production of synthetic diamonds. A factory will be created there with a budget of 2.77 billion dollars (almost 2.4 billion euros) in which the Spanish Society for Technological Transformation will participate (SETT), with 753 million, and the American company Diamond Foundry (DF). And those diamonds will not be used for jewelry, but for especially powerful chips.
The silicon problem. Current silicon chips have hit a “thermal wall.” By making them faster and more powerful, they get so hot that they lose efficiency or burn out. This slows down the progress of these chips and their application in fields such as artificial intelligence or automotive. Alternatives have been sought for a long timeand the diamond is precisely one of the most striking.
The evolution of Trujillo. The Diamond Foundry factory will not make jewelry, but the synthetic diamond wafers it first produced two years ago. The diamond has a thermal conductivity much higher than that of silicon, with values ranging between 1,000 to 2,200 W/mK compared to 153 W/mK for silicon. Or what is the same: it allows us to guarantee that, as they highlighted on IEE Spectrumthe chips of the future will remain “fresh.”
The impact. By using diamond as the base or substrate for these chips, it is possible to run them at extreme speeds without overheating. This will position Spain as the world center of this critical technology. The North American company It already had two plants in Trujillo in which monocrystalline diamond (SCD) ingots were produced. The factories are also powered by solar energy, which is abundant in the Extremadura region.
Zaragoza as a great ally. Those responsible for Diamond Foundry they explain in the official statement that the new factory is already underway with two construction shifts to accelerate the works. The ingots (the “raw” form of the material) will then go through a singling or cutting process that “slices” them into very thin sheets. These sheets, which are initially rough, are polished at a microscopic level and packaged in a sterile environment. Precisely this “post-processing” phase of production will be carried out in Zaragoza.
The investment. The total budget they talk about in DF is 2,770 million dollars, about 2,392 million euros at the exchange rate. Of that amount, the SETT—which groups together previous investments such as PERTE Chip—, will contribute 753 million euros according to DF. It is expected that in the first ten years of the project the contribution to the Spanish GDP will be around 2,150 million euros, and it is expected to generate around 500 direct jobs and more than 1,600 indirect jobs.
How to produce synthetic diamonds. While natural diamonds they take time to produce between 1,000 and 3,300 million years old, in Trujillo they are manufactured in approximately one month. To achieve this, DF uses 20 plasma reactors that exceed 1,000 degrees in temperature and generate conditions similar to those found in nature. The process starts with a 20.0 x 20.0 x 0.2 mm diamond “seed” that, when subjected to a combination of gases and a microwave process, grows until it reaches the optimal dimensions for use.
Di Caprio, among investors. A curiosity: the San Francisco-based company was founded in 2012 by Martin Roscheisen and Jeremy Scholz, but what is surprising is its list of investors. Among them are iPod co-creator Tony Fadeel, Twitter founder Evan Williams and actor Leonardo di Caprio.
The water problem. Diamond Foundry’s plants in Trujillo have faced significant problems related to their water supply. It is estimated that the plants need at least 730,000 cubic meters of water per year, which exceeds the annual drinking water consumption of the entire population of Trujillo. Various platforms such as Save El Berrocal and Ecologistas en Acción have warned of that danger, although Diamond Foundry has defended that its plan is based on the reuse of water from the Trujillo Wastewater Treatment Plant (WWTP). The Extremadura Government gave the green light to some modifications to the original DF project and considered that the factories would not produce significant adverse effects on the environment.
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