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by phcordner 1981 days ago
> And in that planning the fact that TSMC’s foundries — and Samsung’s — are within easy reach of Chinese missiles is a major issue.

Are processor fabs analagous to auto factories and shipyards in World War II? Is the United States military's plan for a nuclear exchange with China dependent on a steady supply of cutting edge semiconductors? Even if it is, is that strategy really going to help?

This article is mostly concerened with Intel's stock price. Why bring this into it? Let's say Intel gets its mojo back and is producing cutting edge silicon at a level to compete with TSMC and supplying the Pentagon with all sorts of goodies... and then China nukes Taiwan? And now we cash in our Intel options just in time to see the flash and be projected as ash particles on a brick wall?

"The U.S. needs cutting edge fabs on U.S. soil" is true only if you believe the falied assumptions of the blue team during the Millenium Challenge, that electronic superiority is directly related to battlefield superiority. If semiconductors are the key to winning a war, why hasn't the U.S. won one lately?

And what does any of this have to do with Intel? Why are we dreaming up Dr. Strangelove scenarios? Is it just that some people are only comfortable with Keynesian stimulus if it's in the context of war procurement?

2 comments

I don't feel that there is a meaningful TSMC alternative today. Samsung, Intel and GlobalFoundries are not suitable replacements for TSMC with regards to throughput or technology.

The world does need some meaningful fabs outside of Taiwan/South Korea. All of the <10nm semiconductor and most of the >10nm semiconductor fabrication takes place within a 750km/460mile radius circle today. That is risky.

Israel, Mexico, Germany, Canada, Japan (not that it would grow the circle much...) are all viable places to run a foundry. The fact that Intel is one of the few outside that circle doesn't inspire confidence in the security of the global supply chain.

One of the key misconceptions that I see repeated in the comments for this article is that lithography with sub-10nm feature size is somehow universally appropriate and preferable. This may be true for high-performance computing or other applications that are sensitive to the ratio of compute to price (or mobile consumer devices with a small thermal envelope), but it's not necessarily true for power electronics, automotive ICs, or missile control systems. Some of those chips aren't even made of silicon, instead being made of more expensive gallium nitride or gallium arsenide because of their thermal, high-frequency, radiation, and voltage properties.
I mostly agree that there isn't a great alternative to TSMC, but I would point out that the 2021 Qualcomm Snapdragon 888 processors are being made by Samsung with their 5nm process (in addition to their new Exynos 2100). Intel and GlobalFoundries aren't really replacements, but Samsung has been winning business for latest-generation flagship processors. Maybe it isn't as advanced as TSMC and maybe Samsung will have problems, but a lot of the 2021 flagship phones will be shipping with Samsung-manufactured 5nm processors.

Samsung seems to be keeping it close.

It's still within that circle. Samsung is a great fab, probably the only real contender to TSMC. Samsung is 17% global semiconductor demand vs TSMC at 50%+. Included in that 17% is all of Samsung's demand (Exynos, SSD/storage, memory, etc).

Further agitating the issue, South-Korean SK-Hynix is buying Intel's nand business this year and will likely shift production out of intel's US fabs when it comes time.

> If semiconductors are the key to winning a war, why hasn't the U.S. won one lately?

Semiconductors aren’t going to help change people’s cultures or religion or tribal affiliations without decades of heavy investment in education and infrastructure, or other large scale wealth transfers.

But if “winning a war” means killing the opposing members while minimizing your own losses, surely electronic superiority will help.