4 ms·
I’m curious. Which of the parts back in the day would have failed first and why? And which of the parts would have continued functioning despite radiation?
by malandrew 6y ago
I’m curious. Which of the parts back in the day would have failed first and why? And which of the parts would have continued functioning despite radiation?
- lnsru 6y agoComputers fail first because the memory content gets corrupted. I can imagine, that power electronics will continue functioning despite radiation.
- magicalhippo 6y agoApparently regular MOSFETs are affected[1] by the total dose of ionizing radition (TDI) causing important parameters to change, such as threshold voltage (Vgt) and internal resistance (Rds). So it seems even power electronics are not safe[2], nor microcontrollers/microprocessors and other types of ICs. [1]: https://nepp.nasa.gov/files/28954/2017-Lauenstein-NSREC-Poster-Pres-MOSFETs-TN44381.pdf https://nepp.nasa.gov/files/28954/2017-Lauenstein-NSREC-Post... (esp. figure 11) [2]: https://www.renesas.com/eu/en/products/space-harsh-environment/rad-hard-power.html https://www.renesas.com/eu/en/products/space-harsh-environme...
- lnsru 6y agoThank you, signed for Renesas newsletter. Very interesting topics.