1. In 2001, the chip manufacturing process at that time was 130 nm, and the Pentium 3 processor we used at that time was 130 nm.
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2.2004 is the first year of 90 nm, that year Pentium 4 adopts 90 nm process, and the performance is further improved. At that time, there were many manufacturers that could achieve the 90-nanometer manufacturing process, such as Intel, Infineon, Texas Instruments,IBM, as well as UMC and TSMC.
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3. In 2012, the process technology was developed to 22 nm. At this time, Intel, UMC, Mediatek, GE Chip, TSMC, Samsung, etc., there are still many manufacturers in the world that can achieve 22 nm semiconductor process technology. The year 2015 marked a watershed in the development of chip fabrication, when the process entered 14 nanometers.