Japan's chip industry has developed for several reasons.
Japan's semiconductor was indeed very strong in the 1990s, surpassing the United States to become the world's first, but it was later suppressed by the United States, so Japan also fell.
However, in some semiconductor equipment, Japanese companies are also in a monopoly position, such as Tokyo Electronics alone in the share of coating development equipment accounted for nearly 90%. In the cleaning equipment to remove wafer waste and dirt, the share of Japanese companies is more than 60%. In terms of scribing machines for post-process equipment, it has a 70% share. Tokyo Electronics is also the world's only mass-producing company in the field of coating development equipment for EUV (extreme ultraviolet) related processes. Japan's SCREEN Holdings has a 45.8% global share in the cleaning equipment sector. At the same time, Japan, the Netherlands and China are also capable of manufacturing duv lithography machines.
Silicon wafers are the most mainstream wafer material for chips, and Japan's purification technology can be said to be marvelous, which can increase its purity to 99.9999999%. But the technology is still evolving and evolving. That's why Japan can produce so many chips.
Because in the past, Japan has a strong chip manufacturing foundation and the ability to produce lithography machines, although it is suppressed by the United States, it can still produce many chips.