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Re: starship-design: Busy busy



Ben Franchuk wrote:
L. Parker wrote:

It is not a function of component density. It is a combination of grounding,
shielding and a different substrate that is not as susceptible to radiation
damage. Standard silicon is not very good for this purpose.

PS: Anyone know what sort of componant density is needed on
an IC to prevent
radiation-damage? (how do you rad-harden a chip?)

I also suspect it has to do with radiation energy levels
and chip speeds and power used. CMOS logic is sensitive
to distructive latchup that radiation could cause, but
I suspect transient errors to be more of a problem in memory.
Most logic nowdays does not have even parity or other forms
of diagnostics trading this all for speed and the ability
to run windows. :(
Get the hardware working and then count on being two computer
generations back for space rated stuff.
Check here for space rated hardware.
http://www.gaisler.com/