We are seeing shortages of chips initially taped out around 2007/2008 - think the STM32 family or the ATmega32U4. They are using technology from the early 2000s

We are seeing shortages of chips initially taped out around 2007/2008 - think the STM32 family or the ATmega32U4. They are using technology from the early 2000s, think 65-90nm. For comparison the RP2040, released in 2020, uses the 40nm node. That's technology which is literally a decade old and it is considered a modern chip! Meanwhile, TSMC has publicly stated that they are not going to build more 40nm fabs and is actively trying to move customers to 28nm or newer[0]. There isn't any profit in building 40nm fabs anymore, let alone even more legacy ones. [0]: https://www.extremetech.com/computing/337567-tsmc-tells-its-customers-to-get-off-older-nodes-move-to-28nm https://www.extremetech.com/computing/337567-tsmc-tells-its-...