Sometimes, the complex chip factories give an impression that it is not possible to make semiconductor circuits in a traditional way. However, 22-year old Sam Zeloof from the US made them. Proven . This result is far from the product that rolls off the assembly lines at the big chip companies’ billion-dollar factories. The processor that the young man built near the Bell Lab where the first transistor was created is made up of 1,200 transistors. This is more than half the cost of the first Intel chip commercially manufactured. The 1971 Intel 4004 was 2250. Zeloof uses the same process as the semiconductor industry, although manual labor is the norm. First, a silicon layer is coated. Then it is exposed to UV light. Finally, a negative in Photoshop is created. When the hobbyist transfers an image to the chip using a reversed light pathway through a microscope, the miniaturization is successful. The unit is then “developed”, which means it’s put into an acid bath before being baked.
Next destination is clear
Although he jokes, the developer proudly states that his path to development is more steep than the one Intel took in 1970. He made his first chip in 2018 with only a handful of transistors. Intel could not expand its transistor number at that time. According to Zeloof, he had already begun working on a design in December that he hopes will lead him to the Intel 4004. Zeloof was able to make practical use of the first chip. He could use it as a controller for an effects pedal for a guitar. A processor with an Intel 4004 development status can be used to build simple computers. Also see: The legendary Apple garage has now listed Processors, Chips and Clouds, SoCs, Hardware, Gpu and Processors, Ki.