[OM] Re: CF longevity, was: Re: Film vs. Analog - interesting read

[keith_w]

Tim Hughes wrote:
> I seem to remember reading the normal memory chips suffer from ionizing 
> radiation hits, (because
> the number of electrons stored has got to be so small), but they now 
> encapsulate/cover the chip
> surface to minimise the effect. 
> 
> tim Hughes

What are they going to cover the chip with that will stop cosmic or gamma rays 
from zinging right on thru?

keith whaley

>> that too.  But I do not know if those bits will eventually fade off into 
>> the void sitting in the closet or if they're subject to flipping from 
>> cosmic rays.
>>
>> I do know that cosmic rays were a worry to at least one of IBM's memory 
>> engineers when chip density hit 64K bits about 30 years ago.  But that 
>> problem was obviouly solved or else maybe didn't exist in the first place.
>>
>> Chuck Norcutt

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