We are close to having microelectronics that can function at Venus surface temperature and pressure. Examples tested include smallish circuits like a 555 timer

We are close to having microelectronics that can function at Venus surface temperature and pressure. Examples tested include smallish circuits like a 555 timer [1] or a 256 pixel sensor array [2]. The Silicon Carbide technology seems very capable. [1] https://ieeexplore.ieee.org/abstract/document/8782125/ https://ieeexplore.ieee.org/abstract/document/8782125/ [2] https://ieeexplore.ieee.org/abstract/document/8959229/ https://ieeexplore.ieee.org/abstract/document/8959229/