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Most microcontrollers today are using 40-90 nm processes. That's not the micron level at all. Chips that need current-handling capabilities or have weird need
by pclmulqdq 2y ago
Most microcontrollers today are using 40-90 nm processes. That's not the micron level at all. Chips that need current-handling capabilities or have weird needs will use bigger process nodes. This is a big part of why automotive electronics use old nodes.
- amelius 2y agoYou're thinking of power mosfets, but automobiles have entertainment systems too.
- pclmulqdq 2y agoThe power electronics are more complicated than MOSFETs, and the entertainment systems use chips on modern process nodes. The main use I can see for MCUs/MPUs on old process nodes is replacement parts for 10+ year old equipment.