High-k dielectrics for hybrid floating gate memory applications

2012 ◽  
Vol 1430 ◽  
Author(s):  
J.G. Lisoni ◽  
L. Breuil ◽  
P. Blomme ◽  
J. Van Houdt

ABSTRACTWe report on the materials issues involved in the hybrid floating gate (HFG) device fabrication, where the interpoly dielectric is replaced by an intermetal dielectric (IMD). Indeed, in HFG the dielectric is inserted in between two metal layers in a metal\dielectric\metal stack. The materials of choice were TiN as the metal layer and Al2O3 and HfO2 (and their combination) as IMD. The program/erase performance is discussed based on the dielectric constant and crystallinity of the IMD and the metal-IMD interface characteristics.

2020 ◽  
Vol 31 (21) ◽  
pp. 215203
Author(s):  
Furkan Kuruoğlu ◽  
Murat Çalışkan ◽  
Merih Serin ◽  
Ayşe Erol

2006 ◽  
Vol 45 (4B) ◽  
pp. 3170-3175
Author(s):  
Bogdan Govoreanu ◽  
Robin Degraeve ◽  
Thomas Kauerauf ◽  
Wim Magnus ◽  
Dirk Wellekens ◽  
...  

2010 ◽  
Vol 1250 ◽  
Author(s):  
Guillaume Gay ◽  
Djamel Belhachemi ◽  
Jean-Philippe Colonna ◽  
Stéphane Minoret ◽  
Arnaud Beaurain ◽  
...  

AbstractIn this paper, we present CVD (Chemical Vapor Deposition) growth and passivation of tungsten (W) and titanium nitride (TiN) nanocrystals (NCs) on silicon dioxide and silicon nitride for use as charge trapping layer in floating gate memory devices. NCs are deposited in an 8 inches industrial CVD Centura tool. W and TiN are chosen for being compatible with MOSFET memory fabrication process. For protecting NCs from oxidation, a silicon shell is selectively deposited on them. Moreover, for a better passivation, TiN NCs are encapsulated in silicon nitride (Si3N4) in order to get rid of oxidation issues. After high temperature annealing (1050°C under N2 during 1 minute) XPS measurements point out that NCs are still metallic, which makes them good candidates for being used as charge trapping layer in floating gate memories.


2016 ◽  
Vol 72 (2) ◽  
pp. 51-55
Author(s):  
D. Jiang ◽  
L. Jin ◽  
Z. Xia ◽  
G. Chen ◽  
X. Zou ◽  
...  

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