Changes in the thermal oxidation of gallium arsenide induced by ion implantation

1979 ◽  
Vol 15 (2) ◽  
pp. 51 ◽  
Author(s):  
D.N. Butcher ◽  
B.J. Sealy
2004 ◽  
Vol 457-460 ◽  
pp. 1357-1360 ◽  
Author(s):  
Antonella Poggi ◽  
Roberta Nipoti ◽  
Sandro Solmi ◽  
M. Bersani ◽  
L. Vanzetti

2019 ◽  
Vol 174 (7-8) ◽  
pp. 636-646
Author(s):  
Ajay Yadav ◽  
S. K. Dubey ◽  
V. Bambole ◽  
R. L. Dubey ◽  
I. Sulania ◽  
...  

1976 ◽  
Vol 29 (11) ◽  
pp. 698-699 ◽  
Author(s):  
C. O. Bozler ◽  
J. P. Donnelly ◽  
W. T. Lindley ◽  
R. A. Reynolds

2014 ◽  
Vol 778-780 ◽  
pp. 575-578 ◽  
Author(s):  
Tomasz Sledziewski ◽  
Aleksey Mikhaylov ◽  
Sergey A. Reshanov ◽  
Adolf Schöner ◽  
Heiko B. Weber ◽  
...  

The effect of phosphorus (P) on the electrical properties of the 4H-SiC / SiO2interface was investigated. Phosphorus was introduced by surface-near ion implantation with varying ion energy and dose prior to thermal oxidation. Secondary ion mass spectrometry revealed that only part of the implanted P followed the oxidation front to the interface. A negative flatband shift due to residual P in the oxide was found fromC-Vmeasurements. Conductance method measurements revealed a significant reduction of density of interface trapsDitwith energyEC- Eit> 0.3 V for P+-implanted samples with [P]interface= 1.5 1018cm-3in the SiC layer at the interface.


2006 ◽  
Vol 287 (1) ◽  
pp. 2-6 ◽  
Author(s):  
H. Amekura ◽  
N. Umeda ◽  
M. Yoshitake ◽  
K. Kono ◽  
N. Kishimoto ◽  
...  

1991 ◽  
Vol 240 ◽  
Author(s):  
J. P. de Souza ◽  
D. K. Sadana

ABSTRACTThis review emphasizes controlled shallow doping of GaAs by ion implantation for state-of-art GaAs IC technology. Electrical activation behavior of Si+ and SiF+ implanted GaAs after RTA under capless and PECVD Si3N4-capped conditions will be compared. It will be demonstrated that a remarkable improvement (> 20 %) both in carrier activation and as well mobility can be achieved by co-implanting low doses (< 1013 cm−2 of Al+ into n-dopant (including Si, Se and Te) implanted GaAs and subsequently annealing the material under capless RTA conditions. The maximum improvement in the electrical results with Al+ co-implants occurs for doses (e.g. < 1013 cm−2 for 30 keV Si+) which are used for fabricating shallow channels for submicron GaAs MESFETs. Complex dopant-annealing environment interactions during a buried p layer formation (using either Mg+ or Be+) will be discussed.


1993 ◽  
Vol 316 ◽  
Author(s):  
Craig Jasper ◽  
Scott Klingbeil ◽  
K.S. Jones ◽  
H.G. Robinson

ABSTRACTControl of threshold voltage during gallium arsenide (GaAs) Metal Semiconductor Field Effect Transistor (MESFET) processing is critical. Channel formation typically is done using ion implantation of 29Si+ from a SiF4 source. The use of Si+ presents a variety of potential cross-contamination problems. 28Si+ and 30Si+ beams can become contaminated with 28N2+, 28CO+, and 30NO+. While 29Si+ is relatively pure, the abundance of 29Si+ in the mass spectrum is 4.67%, thus reducing the potential beam current. This study investigates the effects of varying the mass resolving power of an Eaton 6200AV implanter on the electrical parameters and defect formation. The mass resolving power was adjusted by changing the mean path size through the slit of the aperture opening and magnetic separator current. Electrical device characterization measured a small shift in saturated source-drain current (Idss) and break down voltage, while threshold voltage shifts of approximately 80 mV were observed, with the various mass resolution powers. Transmission Electron Microscopy (TEM) showed that there is minimal change in the extended defect density with changes in isotope and aperture opening. Secondary Ion Mass Spectrometry (SIMS) measured the amount of cross contamination and these results correlated well with the observed changes in device electrical properties.


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