Maintaining reproducible plasma reactor wall conditions: SF6 plasma cleaning of films deposited on chamber walls during Cl2/O2 plasma etching of Si

2002 ◽  
Vol 20 (4) ◽  
pp. 1195-1201 ◽  
Author(s):  
Saurabh J. Ullal ◽  
Harmeet Singh ◽  
John Daugherty ◽  
Vahid Vahedi ◽  
Eray S. Aydil
2019 ◽  
Vol 475 ◽  
pp. 143-150
Author(s):  
Zhiyan Zhang ◽  
Zongbiao Ye ◽  
Zhijun Wang ◽  
Fujun Gou ◽  
Bizhou Shen ◽  
...  

Author(s):  
I.A. Buyanova ◽  
A. Henry ◽  
B. Monemar ◽  
J.L. Lindström ◽  
G.S. Oehrlein
Keyword(s):  

2013 ◽  
Vol 38 (3) ◽  
pp. 447-450 ◽  
Author(s):  
Toru Harigai ◽  
Koyo Iwasa ◽  
Hirofumi Koji ◽  
Noriko Nitta ◽  
Hiroshi Furuta ◽  
...  

Author(s):  
J. H. Choo ◽  
H. A. Spikes ◽  
M. Ratoi ◽  
R. P. Glovnea ◽  
A. Forrest

This research aims to exploit the physical phenomenon of simple liquids slipping against very smooth solid surfaces, to create a new type of bearing where the lubricant slips against one surface but not the other. To demonstrate the feasibility of this idea, a special test rig capable of measuring milli-Newton forces has been employed to measure friction in high-speed, sliding contacts between a steel roller and sapphire window, lubricated by hexadecane. Sapphire was made either lyophobic by coating with a self-assembled silane monolayer, or lyophilic by O2-plasma cleaning. The roller was made lyophilic. A significant reduction in friction was achieved with lyophobic sapphire but not with lyophilic sapphire. This reduced friction is believed to result from lubricant slip against the lyophobic surface. One possible application of such a bearing will be in microsystems and devices.


2015 ◽  
Vol 1803 ◽  
Author(s):  
M. Rizquez ◽  
A. Roussy ◽  
B. Bortoloti ◽  
J. Pinaton ◽  
Y. Goasduff

ABSTRACTThe purpose of the present paper is to investigate the composition of the coating formed on the plasma reactor walls after an industrial process which is divided into two steps, where the chemistries used are CF4/CH2F2 followed by HBr/O2. Since Fluorine traces have been detected through the plasma and over the wafer even during the second chemistry, investigations of the Br-F chemistry duality for a new silicon etching process have been performed in order to see the reactions which are taking place inside of the reactor. The understanding of these formations is really important to avoid process instabilities and get better performance of the transistors. The coating on the walls after the process and after the cleaning between wafers has been characterized in order to figure out the level of F traces after each step and to understand the reminiscence of this element over time. This study is the starting point to propose a modification on the Waferless AutoClean (WAC) used nowadays in an industrial process.


2012 ◽  
Vol 209 (9) ◽  
pp. 1715-1720 ◽  
Author(s):  
M. Naamoun ◽  
A. Tallaire ◽  
F. Silva ◽  
J. Achard ◽  
P. Doppelt ◽  
...  

2011 ◽  
Vol 128 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Tao Li ◽  
Chunlan Zhou ◽  
Lei Zhao ◽  
Wenjing Wang ◽  
Hailing Li ◽  
...  

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