The low threshold voltage n-type silicon transistors based on a polymer/silica nanocomposite gate dielectric: The effect of annealing temperatures on their operation

2017 ◽  
Vol 416 ◽  
pp. 234-240 ◽  
Author(s):  
Adeleh Hashemi ◽  
Ali Bahari ◽  
Shahram Ghasemi
2014 ◽  
Vol 910 ◽  
pp. 44-47
Author(s):  
Win Der Lee ◽  
Mu Chun Wang

Following the investigation of the relationship among the annealing temperatures for decoupled plasma nitridation (DPN) process to indirectly manipulate the amount of oxygen vacancy in high-k (HK) gate dielectric, the expected threshold voltage (Vt) of n-channel MOSFET (nMOSFET) device is able to be approached. The uniformity of Vt values related to the channel lengths was fine due to 10% deviation specification, but the roll-up phenomenon coming from the strain effect was observed. The lower annealing temperature shows the higher Vt value due to the higher interface state density, reflecting at the subthreshold swing (S.S.) characteristics.


Author(s):  
A. Razavieh ◽  
Y. Chen ◽  
T. Ethirajan ◽  
M. Gu ◽  
S. Cimino ◽  
...  

Author(s):  
Benjamin King ◽  
Andrew J. Daszczynski ◽  
Nicole A. Rice ◽  
Alexander J. Peltekoff ◽  
Nathan J. Yutronkie ◽  
...  

2018 ◽  
Vol 924 ◽  
pp. 482-485
Author(s):  
Min Seok Kang ◽  
Kevin Lawless ◽  
Bong Mook Lee ◽  
Veena Misra

We investigated the impact of an initial lanthanum oxide (La2O3) thickness and forming gas annealing (FGA) conditions on the MOSFET performance. The FGA has been shown to dramatically improve the threshold voltage (VT) stability of 4H-SiC MOSFETs. The FGA process leads to low VTshift and high field effect mobility due to reduction of the interface states density as well as traps by passivating the dangling bonds and active traps in the Lanthanum Silicate dielectrics. By optimizing the La2O3interfacial layer thickness and FGA condition, SiC MOSFETs with high threshold voltage and high mobility while maintaining minimal VTshift are realized.


2018 ◽  
Vol 59 (4) ◽  
pp. 745-751 ◽  
Author(s):  
Yanping Zhang ◽  
Liyan Zhang ◽  
Lisheng Cheng ◽  
Yongxin Qin ◽  
Yi Li ◽  
...  

2001 ◽  
Vol 670 ◽  
Author(s):  
Igor Polishchuk ◽  
Pushkar Ranade ◽  
Tsu-Jae King ◽  
Chenming Hu

ABSTRACTIn this paper we propose a new metal-gate CMOS technology that uses a combination of two metals to achieve a low threshold voltage for both n- and p-MOSFET's. One of the gate electrodes is formed by metal interdiffusion so that no metal has to be etched away from the gate dielectric surface. Consequently, this process does not compromise the integrity and electrical reliability of the gate dielectric. This new technology is demonstrated for the Ti-Ni metal combination that produces gate electrodes with 3.9 eV and 5.3 eV work functions for n-MOS and p-MOS devices respectively.


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