Every wafer fabrication plant in the world uses equipment from one of those three companies. Applied Materials and LAM Research (along with Tokyo Electron) have their fingers in almost all areas of chipmaking equipment (PVD, CVD, Etch, etc.), while KLA (formerly KLA-Tencor) dominates the wafer inspection equipment segment. Add ASML in the Netherlands, and those five absolutely dominate the semiconductor equipment market. …

This is where things get tricky. SMIC claims they can do 7nm, but everyone outside China doubts they can do it reliably, repeatably and profitably. SMIC announced they’re about to start manufacturing 14nm, and that they can probably do. Practically, they’re the only semiconductor manufacturer in China that can do sub-14nm, as just about everyone at the top of the next biggest semiconductor manufacturer, Tsinghua Unigroup, just got arrested in July.

There’s even talk that they’re going to ban sales of older chipmaking equipment as well, and that they’re actually zeroing in on FinFET technology specifically.

Without a continued stream of machines, spare parts and technical know-how from those five semiconductor giants, China’s semiconductor industry is doomed. China’s domestic semiconductor equipment industry is essentially garbage, and they’re so far behind in so many areas that they can’t even steal their way to parity. The knowledge gulf is just too vast.