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Just Four Companies Will Produce the Microchips on Which the Global Economy Depends

President Barack Obama speaks during construction expansion at Intel, maker of microchips.

President Barack Obama speaks during construction expansion at Intel, maker of microchips. // Ross D. Franklin/AP

Making advanced microchips has always been hard. But it’s now so difficult that the number of companies with the knowledge and cash to do it is about to shrink to precisely four.

The factories in which microchips are made, called fabs, can cost billions of dollars. They’re like rocket launch sites or nuclear power plants: Everyone knows where they are and how many are in the works. And they make the microchips on which all nearly all advanced smartphones, PCs, servers, and other critical pieces of IT infrastructure depend.

The smallest elements on the most advanced microchips, currently in testing, are down to 14 nanometers, on the scale of atoms and molecules. Fifty water molecules in a row would just reach 14 nanometers.

Read more at Quartz.

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