Effect of Reactive-Ion Etching on Thermal Oxide Properties on 4H-SiC

Author(s):  
Kevin Matocha ◽  
Chris S. Cowen ◽  
Richard Beaupre ◽  
Jesse B. Tucker
2006 ◽  
Vol 527-529 ◽  
pp. 983-986
Author(s):  
Kevin Matocha ◽  
Chris S. Cowen ◽  
Richard Beaupre ◽  
Jesse B. Tucker

4H-SiC MOS capacitors were used to characterize the effect of reactive-ion etching of the SiC surface on the electrical properties of N2O-grown thermal oxides. The oxide breakdown field reduces from 9.5 MV/cm with wet etching to saturate at 9.0 MV/cm with 30% reactive-ion over-etching. Additionally, the conduction-band offset barrier height, φB, progressively decreases from 2.51 eV with wet etching to 2.46 eV with 45% reactive-ion over-etching.


1984 ◽  
Vol 38 ◽  
Author(s):  
Stephen Dunfield ◽  
Tom Deacon ◽  
Tam Pandhumsoporn

AbstractThe application of reactive ion etching to oxide films on 150mm sub-strates was studied. Etch rates of greater than 450 Å/min for thermal oxide with overall uniformities of less than ±5% have been observed. Selectivity of thermal oxide to polysilicon (20ω per square) has been observed to be in the range of 14:1 to 17:1.


1996 ◽  
Author(s):  
George F. McLane ◽  
Paul Cooke ◽  
Robert P. Moerkirk

2020 ◽  
Vol 54 (6) ◽  
pp. 672-676
Author(s):  
L. K. Markov ◽  
I. P. Smirnova ◽  
M. V. Kukushkin ◽  
A. S. Pavluchenko

1988 ◽  
Vol 24 (13) ◽  
pp. 798 ◽  
Author(s):  
T. Matsui ◽  
H. Sugimoto ◽  
T. Ohishi ◽  
H. Ogata

1989 ◽  
Vol 25 (15) ◽  
pp. 954 ◽  
Author(s):  
T. Matsui ◽  
H. Sugimoto ◽  
K. Ohtsuka ◽  
Y. Abe ◽  
H. Ogata

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1955
Author(s):  
Marco Cen-Puc ◽  
Andreas Schander ◽  
Minerva G. Vargas Gleason ◽  
Walter Lang

Polyimide films are currently of great interest for the development of flexible electronics and sensors. In order to ensure a proper integration with other materials and PI itself, some sort of surface modification is required. In this work, microwave oxygen plasma, reactive ion etching oxygen plasma, combination of KOH and HCl solutions, and polyethylenimine solution were used as surface treatments of PI films. Treatments were compared to find the best method to promote the adhesion between two polyimide films. The first selection of the treatment conditions for each method was based on changes in the contact angle with deionized water. Afterward, further qualitative (scratch test) and a quantitative adhesion assessment (peel test) were performed. Both scratch test and peel strength indicated that oxygen plasma treatment using reactive ion etching equipment is the most promising approach for promoting the adhesion between polyimide films.


Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1595
Author(s):  
Nomin Lim ◽  
Yeon Sik Choi ◽  
Alexander Efremov ◽  
Kwang-Ho Kwon

This research work deals with the comparative study of C6F12O + Ar and CF4 + Ar gas chemistries in respect to Si and SiO2 reactive-ion etching processes in a low power regime. Despite uncertain applicability of C6F12O as the fluorine-containing etchant gas, it is interesting because of the liquid (at room temperature) nature and weaker environmental impact (lower global warming potential). The combination of several experimental techniques (double Langmuir probe, optical emission spectroscopy, X-ray photoelectron spectroscopy) allowed one (a) to compare performances of given gas systems in respect to the reactive-ion etching of Si and SiO2; and (b) to associate the features of corresponding etching kinetics with those for gas-phase plasma parameters. It was found that both gas systems exhibit (a) similar changes in ion energy flux and F atom flux with variations on input RF power and gas pressure; (b) quite close polymerization abilities; and (c) identical behaviors of Si and SiO2 etching rates, as determined by the neutral-flux-limited regime of ion-assisted chemical reaction. Principal features of C6F12O + Ar plasma are only lower absolute etching rates (mainly due to the lower density and flux of F atoms) as well as some limitations in SiO2/Si etching selectivity.


Sign in / Sign up

Export Citation Format

Share Document