I feel like this is a fairly small investment on the scale of the semiconductor industry, although it would be large for a single company if we were talking about a single year. See, for example, https://wccftech.com/chinese-chip-giant-smic-shaken-by-tarif... US$7.5 billion in capex at SMIC this year. But SMIC is just the largest of dozens of Mainland China semiconductor firms, and a lot of that investment is going into cutting-edge strategic nodes, not 180nm stuff from last millennium.
Don't get me wrong, you need that stuff from last millennium—not just 180nm but also the 6 μm I suspect "foundational" actually refers to. You need power regulation, precision measurement, and RF frontends in analog, and analog can't scale down the way digital can. And TI actually retains a world-leading position in those chips, with better and cheaper ICs than anything out of Mainland China today. But it's potentially a game of chasing China's taillights.
SiGe might be an exception; even at 130nm, IHP's SiGe BiCMOS process can hit 450GHz oscillation frequency and 350GHz ft, so even at fairly coarse process node sizes, SiGe could be a strategic enabling technology for submillimeter communication such as Starlink, which is reportedly critical for weapons such as Ukraine's naval drones.
Don't get me wrong, you need that stuff from last millennium—not just 180nm but also the 6 μm I suspect "foundational" actually refers to. You need power regulation, precision measurement, and RF frontends in analog, and analog can't scale down the way digital can. And TI actually retains a world-leading position in those chips, with better and cheaper ICs than anything out of Mainland China today. But it's potentially a game of chasing China's taillights.
SiGe might be an exception; even at 130nm, IHP's SiGe BiCMOS process can hit 450GHz oscillation frequency and 350GHz ft, so even at fairly coarse process node sizes, SiGe could be a strategic enabling technology for submillimeter communication such as Starlink, which is reportedly critical for weapons such as Ukraine's naval drones.