Enhanced etching of InP by cycling with sputter etching and reactive ion etching

1991 ◽  
Author(s):  
Alexandros T. Demos ◽  
H. S. Fogler ◽  
Stella W. Pang ◽  
Michael E. Elta
1984 ◽  
Vol 38 ◽  
Author(s):  
Ch. Steinbruchel ◽  
H. W. Lehmann ◽  
K. Frick

AbstractReactive sputter etching of SiO2 with CHF3-O2 plasmas has been investigated in a parallel plate reactor by combining etch rate measurements with concurrent determination of ion densities (using a Langmuir probe) and the composition of neutral plasma species (using a mass spectrometer). Etch rates are found to follow the ion density and to be fairly independent of the plasma chemistry under most experimental conditions. Moreover, a comparison of reactive sputter etching and reactive ion beam etching of SiO2 with CHF3 and CF4 shows that etch yields per incoming ion are essentially independent of the flux of neutral radicals to the substrate. This strongly suggests as the dominant etch mechanism for SiO2 direct reactive ion etching, where ions themselves are the main reactants in the etch reaction. Measured values of etch yields are consistent with this picture.


1986 ◽  
Vol 76 ◽  
Author(s):  
C H. Steinbrüchel ◽  
B. J. Curtis

ABSTRACTReactive sputter etching of SiO2 in a low-pressure CF4 -O2 plasma has been investigated using a Langmuir probe to determine ion fluxes to the substrate and optical actinometry to monitor the concentration of F atoms, [F]. Etch yields Y, i.e. the number of substrate atoms removed per impinging ion, are obtained vs O2 composition and vs pressure. At constant pressure Y decreases slightly, but [F] increases considerably, with increasing O2 content. On the other hand, at constant O2 composition both Y and [F] increase strongly with increasing pressure. These results suggest that at low [F], relative to the ion flux to the substrate, the dominant etch mechanism is direct reactive ion etching, with the ions themselves as the main reactants, whereas at high [F] the overall etching is ion-enhanced, with F atoms as the main neutral reactants.


1991 ◽  
Vol 138 (4) ◽  
pp. 1143-1146 ◽  
Author(s):  
Alexandros T. Demos ◽  
H. Scott Fogler ◽  
Hossein Etemad‐Moghadam ◽  
Michael E. Elta

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.


Sign in / Sign up

Export Citation Format

Share Document