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Dresden Memory Startup To Debut At Semicon Europa

9/15/2015 02:00 PM EDT
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resistion
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Fatigue
resistion   5/2/2016 5:32:15 AM
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Fatigue (endurance) seems to be the key issue.

resistion
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Re: x-point
resistion   9/20/2015 7:44:59 AM
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It's related to polarization, not resistance. XPoint passes a lot of current.

markhahn0
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x-point
markhahn0   9/19/2015 12:46:43 AM
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Is this in any way related to the Intel/Micron x-point stuff?

StefanMueller
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Re: materials?
StefanMueller   9/17/2015 11:24:13 AM
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Thanks for the question. The material is doped, e.g. with silicon, such that it transitions from monoclinic to tetragonal / cubic crystal structure (depending on the dopant element). It is right at and only at this phase boundary where the ferroelectric properties emerge. Classically, TiN electrodes are used. In order to rule out that the effect might solely be caused by the electrode to HfO2 interface, the ferroelectric properties of HfO2 were also validated for MFM capacitors with Ir, Ru or Pt electrodes (even though Pt seems to affect the FE properties due to its texture (see M.H. Park et al., APL vol. 104, 072901)).

resistion
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materials?
resistion   9/15/2015 7:53:54 PM
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The use of HfO2 is always convenient as a widely recognized material, although I assume it is doped appropriatedly. But how about the electrodes? Any specific requirements there?

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