Venus Hardened Electronics
Due to the extreme temperatures on Venus, the current best technology available
is Silicon Carbide. An example from NASA is seen below.
Silicon Carbide Electronics [1]
This technology has been demonstrated as early as 2007 and shown good performance
at 500C for over 5000 hours. There will reasearch and development costs
to convert some of the electronics to Silicon Carbide, but some of the materials
such as the Seismometer in [2] have already been temperature hardened.
[1] G. W. Hunter, "Long-Lived Venus Lander Technologies: A Brief Discussion Of
Technologies Relevant to Long-lived Landers For Venus Exploration," presented at
the Seventh Meeting of the Venus Exploration and Analysis Group (VEXAG), NASA Glenn Research Center, Cleveland, OH, 2009.
[2] G. W. Hunter, et al., "Discussion of Venus Seismometry," presented at
the Eigth Meeting of the Venus Exploration and Analysis Group (VEXAG), NASA Glenn Research Center, Cleveland, OH, 2010.