Comment by Danox

It’s a barrier, but not an insurmountable barrier. Most of the companies are somewhat lazy and somewhat cheap, but if circumstances change in the market, that make it untenable, they will take on making their own memory or making arrangements with someone else.

It’s been done with processors, modems, SSDs and many other specialized chips. The design and engineering part can already be done at several companies, they just elect not to do anything on the fab side. But they will, if they have to in the long run.

It takes two to four years and Five to twenty billion dollars. Some of the bigger companies, if pushed, particularly, if the alternative is getting chips from China, will do something on the fab side if they absolutely have to. They probably won’t live with the current conditions forever.

There was a company that had three companies say no over about 10 years, eventually, they made a decision to build their own processor known as the M-series…