Silicon and Silicon dioxide thin films deposited by ICPCVD at low temperature and high rate for MEMS applications

Author(s):  
Praveen K. Revuri ◽  
D.K. Tripathi ◽  
M. Martyniuk ◽  
K. K. M. B. D. Silva ◽  
G. Putrino ◽  
...  
2014 ◽  
Vol 32 (4) ◽  
pp. 041515 ◽  
Author(s):  
Grzegorz Greczynski ◽  
Jun Lu ◽  
Stephan Bolz ◽  
Werner Kölker ◽  
Christoph Schiffers ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Akarapu Ashok ◽  
Prem Pal

Silicon dioxide (SiO2) thin films are most commonly used insulating films in the fabrication of silicon-based integrated circuits (ICs) and microelectromechanical systems (MEMS). Several techniques with different processing environments have been investigated to deposit silicon dioxide films at temperatures down to room temperature. Anodic oxidation of silicon is one of the low temperature processes to grow oxide films even below room temperature. In the present work, uniform silicon dioxide thin films are grown at room temperature by using anodic oxidation technique. Oxide films are synthesized in potentiostatic and potentiodynamic regimes at large applied voltages in order to investigate the effect of voltage, mechanical stirring of electrolyte, current density and the water percentage on growth rate, and the different properties of as-grown oxide films. Ellipsometry, FTIR, and SEM are employed to investigate various properties of the oxide films. A 5.25 Å/V growth rate is achieved in potentiostatic mode. In the case of potentiodynamic mode, 160 nm thickness is attained at 300 V. The oxide films developed in both modes are slightly silicon rich, uniform, and less porous. The present study is intended to inspect various properties which are considered for applications in MEMS and Microelectronics.


1993 ◽  
Vol 32 (Part 1, No. 6B) ◽  
pp. 3109-3112 ◽  
Author(s):  
Seiichirou Tomoura ◽  
Kouji Takashima ◽  
Kazuyuki Minami ◽  
Masaki Esashi ◽  
Jun-ichi Nishizawa

2001 ◽  
Vol 695 ◽  
Author(s):  
Xin Lin ◽  
Stephen J. Fonash

ABSTRACTLow temperature silicon dioxide thin films have been prepared by plasma-enhanced chemical vapor deposition (PECVD) using tetramethylsilane (TMS) as the silicon precursor at 100- 200°C in the pressure range of 2- 8 Torr. PECVD TMS oxide thin films deposited at these temperatures and pressures exhibit adjustable stress. The type of stress, including tensile stress, zero stress, and compressive stress, as well as the stress level can be tailored as desired by changing the deposition conditions and film thickness. In addition, the conformality of PECVD TMS oxide thin films varies significantly with the deposition conditions. It improves when the deposition pressure is raised and the substrate temperature is reduced. The mechanisms for the variations of stress and conformality with respect to deposition conditions are discussed in this study. The adjustable stress and conformality of the PECVD TMS oxide make it a promising material for many low temperature applications, such as inter-level dielectric, micro-electro-mechanical systems (MEMs), microfabrication, and large area electronics.


2018 ◽  
Vol 20 (7) ◽  
pp. 4818-4830 ◽  
Author(s):  
Long Wen ◽  
Bibhuti Bhusan Sahu ◽  
Jeon Geon Han

This study reports the high rate and low-temperature deposition of high-quality ITO films using a new 3-D confined magnetron sputtering method.


Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3596
Author(s):  
Deewakar Poudel ◽  
Benjamin Belfore ◽  
Tasnuva Ashrafee ◽  
Shankar Karki ◽  
Grace Rajan ◽  
...  

Cu(In,Ga)Se2 (CIGS) thin films were deposited at low temperature (350 °C) and high rate (10 µm/h) by a single stage process. The effect of post-deposition treatments at 400 °C and 500 °C by indium bromide vapor were studied and compared to the effect of a simple annealing under selenium. Structural, electrical, and chemical analyses demonstrate that there is a drastic difference between the different types of annealing, with the ones under indium bromide leading to much larger grains and higher conductivity. These properties are associated with a modification of the elemental profiles, specifically for gallium and sodium.


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