Role of sidewall scattering in feature profile evolution during Cl[sub 2] and HBr plasma etching of silicon

Author(s):  
M. A. Vyvoda ◽  
M. Li ◽  
D. B. Graves ◽  
H. Lee ◽  
M. V. Malyshev ◽  
...  
Keyword(s):  
1980 ◽  
Vol 19 (7) ◽  
pp. 1371-1376 ◽  
Author(s):  
Teruhiko Yamazaki ◽  
Yoshiki Suzuki ◽  
Jun Uno ◽  
Hidefumi Nakata

1983 ◽  
Vol 38 (4) ◽  
pp. 387-393
Author(s):  
A. A. Goncharenko ◽  
D. I. Slovetskii ◽  
E. F. Shelykhmanov
Keyword(s):  

1993 ◽  
Vol 62 (9) ◽  
pp. 958-960 ◽  
Author(s):  
O. O. Awadelkarim ◽  
T. Gu ◽  
P. I. Mikulan ◽  
R. A. Ditizio ◽  
S. J. Fonash ◽  
...  

1992 ◽  
Vol 279 ◽  
Author(s):  
M. Rahman ◽  
M. A. Foad ◽  
S. Hicks ◽  
M. C. Holland ◽  
C. D. W. Wilkinson

ABSTRACTDry etching can introduce defects into the material being etched. Simple expressions for both sidewall and top surface defect distributions may be obtained by assuming that the defects are introduced according to a phenomenological source function. Calculations of conductance based on these expressions are found to describe very well measurements on dry-etched wires and epilayers. Mechanisms by which defects can penetrate into the sample are discussed. The role of sample heating and defect diffusion is examined. In-situ measurements of sample temperature during a dry-etch run indicate that simple diffusion is insufficient to account entirely for the observed damage. Instead, dry-etch damage may arise from other mechanisms such as by knock-on replacement collisions, or via a channeling effect. A more complex form of diffusion may also affect the final damage distribution.


1991 ◽  
Vol 223 ◽  
Author(s):  
E. Ikawa ◽  
K. Tokashiki ◽  
T. Kikkawa ◽  
Y. Teraoka ◽  
I. Nishiyama

ABSTRACTThe influence of HBr discharge ambience on SiO2 etching is investigated. A batch type parallel-plate reactive ion etching (RIE) dry etcher was used. The discharge ambience was changed by changing the numbers of poly-Si and SiO2 wafers in the same chamber. It is found that as the number of poly-Si wafers increased, the poly-Si etch rate slightly decreased due to a loading effect and SiO2 etching rate drastically increased. The selectivity of poly-Si / SiO2 decreased with increasing the ratio of the loaded poly-Si number in the same chamber. When A12O3 wafers instead of poly-Si wafers were loaded with SiO2 substrates, SiO2 etching rate enhancement did not occur. Therefore, increase of SiO2 etch rate could not be explained using a loading effect. From the results of mass analysis during etching in Si contained HBr plasma, etching products SiBrx (x=1,2,3) peaks were observed. Namely, when the Si etching products were supplied to SiO2 surface, SiO2 etch rate increased. In order to suppress the enhancement of SiO2 etch rate, the etch temperature must be reduced.


1978 ◽  
Vol 49 (10) ◽  
pp. 5165-5170 ◽  
Author(s):  
Harold F. Winters
Keyword(s):  

1987 ◽  
Vol 62 (4) ◽  
pp. 1459-1468 ◽  
Author(s):  
Ken Ninomiya ◽  
Keizo Suzuki ◽  
Shigeru Nishimatsu ◽  
Osami Okada

1982 ◽  
Vol 129 (7) ◽  
pp. 1599-1604 ◽  
Author(s):  
Randolph H. Burton ◽  
Gerald Smolinsky
Keyword(s):  

2020 ◽  
Vol MA2020-01 (37) ◽  
pp. 1586-1586
Author(s):  
Peter Kúš ◽  
Tomáš Hrbek ◽  
Yurii Yakovlev ◽  
Jaroslava Novakova ◽  
Vladimír Matolin ◽  
...  

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