scholarly journals Comparison Between Different Ways in Making Silicon Dioxide Layer on Silicon Wafers

2016 ◽  
Vol 88 ◽  
pp. 01009
Author(s):  
Chenguang Sun ◽  
Yanjun Wang ◽  
Qiang Xu ◽  
Xuenan Zhang ◽  
Zhenfu Liu
Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 136
Author(s):  
Yiingqi Shang ◽  
Hongquan Zhang ◽  
Yan Zhang

Aimed at the problem of the small wet etching depth in sapphire microstructure processing technology, a multilayer composite mask layer is proposed. The thickness of the mask layer is studied, combined with the corrosion rate of different materials on sapphire in the sapphire etching solution, different mask layers are selected for the corrosion test on the sapphire sheet, and then the corrosion experiment is carried out. The results show that at 250 °C, the choice is relatively high when PECVD (Plasma Enhanced Chemical Vapor Deposition) is used to make a double-layer composite film of silicon dioxide and silicon nitride. When the temperature rises to 300 °C, the selection ratio of the silicon dioxide layer grown by PECVD is much greater than that of the silicon nitride layer. Therefore, under high temperature conditions, a certain thickness of silicon dioxide can be used as a mask layer for deep cavity corrosion.


2010 ◽  
Vol 1260 ◽  
Author(s):  
Zhen Lin ◽  
Pavel Brunkov ◽  
Xueying Ma ◽  
Franck Bassani ◽  
Georges Bremond

AbstractIn this paper, individual Ge nano island on top of a silicon dioxide layer of thermally grown on a n+ type doped silicon (001) substrate have been studied. The charging ability of an individual Ge island was evaluated by EFM two-pass lift mode measurement. Such Ge nano island becomes an iso-potential and behaves as a conductive material after being charged. These charges were directly injected and were trapped homogenous in the isolated Ge island. It is also shown that the dominant charge decay mechanism during discharging of nc-Ge is related to the leakage of these trapped charges. Further more, the retention time of these trapped charges was evaluated and the electrostatic force was also studied by using different tip bias during scan. Such a study should be very useful to the Ge-nc in memory applications.


2018 ◽  
Vol 63 (11) ◽  
pp. 1629-1635 ◽  
Author(s):  
V. M. Mordvintsev ◽  
S. E. Kudryavtsev ◽  
V. L. Levin

2017 ◽  
Vol 51 (1) ◽  
pp. 49-53 ◽  
Author(s):  
V. V. Bolotov ◽  
E. V. Knyazev ◽  
I. V. Ponomareva ◽  
V. E. Kan ◽  
N. A. Davletkildeev ◽  
...  

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