http://www.theregister.co.uk/content/3/15121.html
Sieht so aus, als ob AMD seit einiger Zeit im Geheimen an etwas neuem,
ganz heißem (kaltem??) dran ist.
Zitat:
California-based Isonics produces an isotopically pure silicon which
has much better thermal conductivity than natural silicon, meaning that
heat can be removed more effectively. Isonics won't confirm it's
working with AMD, stating only that "a major microprocessor
manufacturer has modeled isotopically pure silicon wafers and has told
us that the peak temperature of their advanced 1GHz microprocessor was
reduced by 35 degrees celsius."
Isonics believes it can profitably provide isotopically pure silicon
bulk wafers for less than $10 per microprocessor, possibly much less.
This compares with $10-30 for a fan and heat sink and looks a far
better bet than a closed-loop cooling system costing several hundred
dollars.
Isotopically pure silicon is chemically the same as regular silicon and
can be used in existing manufacturing processes without any changes.
Silicon exists in nature as three stable, non-radioactive, isotopes:
Si-28 (92 per cent), Si-29 (five per cent) and Si-30 (three per cent).
By purification at the sub-atomic level, it is possible to remove
essentially all of the Si-29 and Si-30 leaving isotopically pure Si-28,
which has a more perfect crystal structure.
This more perfect crystal structure exhibits reduced phonon-phonon and
phonon-electron interactions which increases certain transport
properties, such as thermal conductivity. It has been demonstrated in
the laboratory that isotopically pure Si-28 has 60 per cent better room
temperature thermal conductivity than natural silicon with its three
isotopes.
Sieht so aus, als ob AMD seit einiger Zeit im Geheimen an etwas neuem,
ganz heißem (kaltem??) dran ist.
Zitat:
California-based Isonics produces an isotopically pure silicon which
has much better thermal conductivity than natural silicon, meaning that
heat can be removed more effectively. Isonics won't confirm it's
working with AMD, stating only that "a major microprocessor
manufacturer has modeled isotopically pure silicon wafers and has told
us that the peak temperature of their advanced 1GHz microprocessor was
reduced by 35 degrees celsius."
Isonics believes it can profitably provide isotopically pure silicon
bulk wafers for less than $10 per microprocessor, possibly much less.
This compares with $10-30 for a fan and heat sink and looks a far
better bet than a closed-loop cooling system costing several hundred
dollars.
Isotopically pure silicon is chemically the same as regular silicon and
can be used in existing manufacturing processes without any changes.
Silicon exists in nature as three stable, non-radioactive, isotopes:
Si-28 (92 per cent), Si-29 (five per cent) and Si-30 (three per cent).
By purification at the sub-atomic level, it is possible to remove
essentially all of the Si-29 and Si-30 leaving isotopically pure Si-28,
which has a more perfect crystal structure.
This more perfect crystal structure exhibits reduced phonon-phonon and
phonon-electron interactions which increases certain transport
properties, such as thermal conductivity. It has been demonstrated in
the laboratory that isotopically pure Si-28 has 60 per cent better room
temperature thermal conductivity than natural silicon with its three
isotopes.