On 03/01/15 15:03, William Sommerwerck wrote:
"polygonum" wrote in message ...

The Haswell-E die is composed of 2.6 billion transistors. You have
to achieve phenomenal component reliability for any of them to
work as they leave the factory, let alone years later!

One might argue that all the transistors are created simultaneously in a
single processing sequence, and that the chip is, technically, a single
component.
In general its also a tested component.

so it works to spec or it doesn't.

*Failure* of a system that worked to start with implies change over
time: The relevant point is what changes happen to circuits over time
and what law if any, they follow.



--
Everything you read in newspapers is absolutely true, except for the
rare story of which you happen to have first-hand knowledge. €“ Erwin Knoll