Microelectronics cutting edge has been moving to smaller processes for the past 70 years. This is nothing new. If anything, the progress has slowed down.
Some fabs get closed down/rebuilt for a different process, some stay and produce parts that don't benefit from higher densities. Last I checked some ICs still get produced in 0.35 um processes. You don't need billions of transistors for an opamp.
Some fabs get closed down/rebuilt for a different process, some stay and produce parts that don't benefit from higher densities. Last I checked some ICs still get produced in 0.35 um processes. You don't need billions of transistors for an opamp.