The cost is heinous! The post-00s guys built lithography machines and computer chips in the underground garage

Recently, a 22-year-old electrical engineering student at Carnegie Mellon University completed his own semiconductor manufacturing grand plan in the underground garage of his home - successfully designed and manufactured a silicon chip equivalent to the level of the 1960s and 1970s.

However, this chip only attaches a chip of 1200 transistors, which is at least 50 years behind the current high-end process. But Ziluff joked: "Compared with the Z1 made in 2018, the number of transistors in this Z2 has definitely increased faster than Moore's Law." ”

It is very certain that a young boy completely reproduces the entire production and manufacturing process of semiconductors, although it sounds very remarkable, but there will be gimmicks in it - after all, it cannot be mass-produced, and the performance is backward;

But at the same time, many details show that this is not without commercial reference value, not to mention the success of Qiluf, in education and scientific research, there is also a very clear reference significance.

But what you would never expect is that according to the netizens' public video of Qiluf (interested in watching Youtube, he filmed the whole process) and the value of the instrument in the data, the total cost should not exceed $20,000.

The basic principle of "lithography" is relatively simple: first apply a photosensitive material to the silicon wafer; then use a projector-like device to project the design template on it, and then dissolve the excess through a series of steps. Therefore, his solution to lithography can be called "knowledge transfer ghost"——

He bought a conference room projector on Amazon's website, modified it and mounted it on a microscope to form a simple "lithography machine."

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