My question is this....
~ Will Silicon valley be able to catch up with the technological advances that was made by China over all these years?
~ Can they manufacture these chips at the same cost that China are doing, because China are almost 100% mechanized?
~ What hardware patents are there on the existing technology, that are owned by China ...and will they allow the US to infringe on that.
For a start - we are talking about Taiwan - NOT China. Despite what China's Leaders say/think about the matter for the foreseeable future Taiwan is NOT part of China and will remain so. Someday that may change but won't be anytime soon.
China has ZERO advanced node chip making capabilities, their 'bleeding edge' is the 7nm node and even there it is problematic for them because China has never had access to the still by any standard fairly advanced lithography equipment needed to improve their yields. Smaller than 7nm is out of the question for them and with the chip technology embargo in-place even the 7nm node may no longer be possible for the (yes, 'the' as in their only one that was capable of 7nm) Chinese Foundry to use
~~ Silicon Valley does not have to 'catch up'. Why? Simple: Foundries like TSMC et al are not the ones who are designing the chips and the basic processes used to make them. Companies like Micron, Cisco, Broadcom, AMD, nVidia, etc design them. Recently even Intel has shifted production of some chips to TSMC.
Foundries are given the chip designs by their customers who work with the foundries to implement their designs into chips using whatever process node they want to use that the foundry can provide. Guess where most of the actual design work for leading/bleeding-edge chips is done - the US, Europe and Japan. Not Taiwan (and certainly not China).
~~ Manufacturing cost is a different story. All aspects of chip making is heavily automated as there is no other way to do it so that bit is out of the picture. Oh, and just *where* is the equipment made? All advanced process equipment is designed & made in, you guessed it - the US, Europe, and Japan. Now, yes Taiwan does have lower labor costs but that is their only advantage.
~~ Hardware Patents - again, most are held by US, European and Japanese owned companies with #1 on that list being the EUV lithography systems. Now
Process Patents - that's a different story. Process Patents are a Foundry's highly optimized Secret Sauce but if need be there are always ways around that with the most obvious being Licensing. Barring that, just do things in a significantly different way. Ya know, like Intel, GF & Samsung have done with their Foundries. The whole point of TSMC opening a Foundry in the US is simply to have a long-term safe place to operate that is (mostly) free of major political unrest with zero chance of China causing problems.