Vertical elevated pore phase change memory
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United States of America Patent
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Apr 29, 2008
Grant Date -
Mar 16, 2006
app pub date -
Nov 10, 2005
filing date -
Dec 13, 2002
priority date (Note) -
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Abstract
A vertical elevated pore structure for a phase change memory may include a pore with a lower electrode beneath the pore contacting the phase change material in the pore. The lower electrode may be made up of a higher resistivity lower electrode and a lower resistivity lower electrode underneath the higher resistivity lower electrode. As a result, more uniform heating of the phase change material may be achieved in some embodiments and better contact may be made in some cases.
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