scholarly journals High-etch rate processes for performing deep, highly anisotropic etches in silicon carbide using inductively coupled plasma etching

2017 ◽  
Vol 35 (4) ◽  
pp. 042003
Author(s):  
Mehmet Ozgur ◽  
Michael Huff
Keyword(s):  
Silicon Carbide ◽  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Etch Rate ◽  
Inductively Coupled Plasma Etching ◽  
Inductively Coupled ◽  
Rate Processes ◽  
High Etch Rate

Inductively Coupled Plasma Etching of Pt/Ti Electrodes in Cl-Based Plasma

2013 ◽  
Vol 721 ◽  
pp. 346-349
Author(s):  
Zhi Qin Zhong ◽  
Cheng Tao Yang ◽  
Guo Jun Zhang ◽  
Shu Ya Wang ◽  
Li Ping Dai
Keyword(s):  
Process Parameters ◽  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Etch Rate ◽  
Dry Etching ◽  
Rf Power ◽  
Inductively Coupled Plasma Etching ◽  
Inductively Coupled ◽  
High Etch Rate ◽  
Ar Gas

Dry etching of Pt/Ti film was carried out using Cl2/Ar plasmas in an inductively coupled plasma (ICP) reactor. The influence of the various process parameters, such as RIE power, ICP power and Cl2/Ar gas mixing ratio, on the etch rate and selectivity of photoresist to Pt/Ti film were investigated systematically and optimized. It was revealed that the etch rate and the selectivity strongly depended on the key process parameters. The etch rate was found to increase dramatically with increasing of RIE power and ICP power. But by changing the ratio of Cl2 to the total gas, the maximum etch rate could be obtained at the proper ratio of 20%. The results also indicated too low or too high RIE power and the Cl2 ratio was detrimental to the selectivity. The optimized parameters of Pt/Ti dry etching for high etch rate and low selectivity of photoresist to Pt/Ti were obtained to be pressure: 10mT, RF power: 250W, ICP power: 0W, Cl2: 8sccm (standard cubic centimeters per minute), Ar: 32sccm.

ICP Etching of 4H-SiC Substrates

2013 ◽  
Vol 740-742 ◽  
pp. 825-828 ◽  
Author(s):  
Jerome Biscarrat ◽  
Jean François Michaud ◽  
Emmanuel Collard ◽  
Daniel Alquier
Keyword(s):  
Process Parameters ◽  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Etch Rate ◽  
Effective Technique ◽  
Working Pressure ◽  
Inductively Coupled ◽  
Icp Etching ◽  
High Etch Rate ◽  
The Impact

Due to its inert chemical nature, plasma etching is the most effective technique to pattern SiC. In this paper, dry etching of 4H-SiC substrate in Inductively Coupled Plasma (ICP) has been studied in order to evaluate the impact of process parameters on the characteristics of etching such as etch rate and trenching effect. Key process parameters such as platen power and ICP coil power prove to be essential to control the SiC etch rate. On the other hand, the ICP coil power and the working pressure mainly master the trenching effect. Our results enlighten that high etch rate with minimal trenching effect can be obtained using high ICP coil power and low working pressure.

The effect of BCl3 pretreatment on the etching of AlN in Cl2-based plasma

2008 ◽  
Vol 1108 ◽  
Author(s):  
Xiaoyan Xu ◽  
Vladimir Kuryatkov ◽  
Boris Borisov ◽  
Mahesh Pandikunta ◽  
Sergey A Nikishin ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Etch Rate ◽  
Reactive Ion Etching ◽  
Native Oxide ◽  
Short Exposure ◽  
Ion Etching ◽  
Inductively Coupled ◽  
High Etch Rate

AbstractThe effect of BCl3 and BCl3/Ar pretreatment on Cl2/Ar and Cl2/Ar/BCl3 dry etching of AlN is investigated using inductively coupled plasma reactive ion etching. The native AlN oxide can be effectively removed by a short exposure to BCl3 or BCl3/Ar plasma. Compared to the chlorine based plasma etching, BCl3/Ar is found to have the highest etch rate for both AlN and its native oxide. Following removal of the native oxide, Cl2/Ar/BCl3 plasma etching with 15% BCl3 fraction results in a high etch rate ˜ 87 nm/min and modest increases in the surface roughness.

GaN etch rate and surface roughness evolution in Cl2/Ar based inductively coupled plasma etching

2012 ◽  
Vol 520 (24) ◽  
pp. 7212-7218 ◽  
Author(s):  
D.S. Rawal ◽  
Henika Arora ◽  
V.R. Agarwal ◽  
Seema Vinayak ◽  
Ashok Kapoor ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Etch Rate ◽  
Inductively Coupled Plasma Etching ◽  
Inductively Coupled ◽  
Surface Roughness Evolution

Comparative Study on Dry Etching of α- and β-SiC Nano-Pillars

2013 ◽  
Vol 740-742 ◽  
pp. 817-820
Author(s):  
J.H. Choi ◽  
Laurence Latu-Romain ◽  
Edwige Bano ◽  
Anne Henry ◽  
Won Jae Lee ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Comparative Study ◽  
Cross Section ◽  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Dry Etching ◽  
Inductively Coupled Plasma Etching ◽  
Inductively Coupled ◽  
Crystal Orientations ◽  
Comprehensive Study

A comprehensive study on different polytypes (α-SiC and β-SiC) and crystal orientations ((0001) and (11-20) of 6H-SiC) has been investigated in order to elaborate Silicon carbide (SiC) nanopillar using inductively coupled plasma etching method. The SiC nanopillars with the cross section of rhombus, pentagon, and hexagonal have been obtained on β-SiC (001), misoriented α-SiC (11-20), and α-SiC (0001) on-axis substrates, respectively. It was found that crystal orientations and polytypes play key roles for the morphology of SiC nanopillars, which reflects the so-called Wulff's rule.

Inductively coupled plasma etching for delineation of InAs/GaSb pixels

2012 ◽  
Author(s):  
Jean Nguyen ◽  
John Gill ◽  
Sir B. Rafol ◽  
Alexander Soibel ◽  
Arezou Khoshakhlagh ◽  
...  
Keyword(s):  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled Plasma Etching ◽  
Inductively Coupled

Inductively coupled plasma etching of HgCdTe using a CH4-based mixture

2005 ◽  
Vol 34 (6) ◽  
pp. 740-745 ◽  
Author(s):  
E. Laffosse ◽  
J. Baylet ◽  
J. P. Chamonal ◽  
G. Destefanis ◽  
G. Cartry ◽  
...  
Keyword(s):  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled Plasma Etching ◽  
Inductively Coupled

Fabrication of GaN nanorods by inductively coupled plasma etching via SiO2 nanosphere lithography

2009 ◽  
Vol 517 (14) ◽  
pp. 3859-3861 ◽  
Author(s):  
Byung-Jae Kim ◽  
Hyunjung Jung ◽  
Hong-Yeol Kim ◽  
Joona Bang ◽  
Jihyun Kim
Keyword(s):  
Plasma Etching ◽  
Inductively Coupled Plasma ◽  
Nanosphere Lithography ◽  
Inductively Coupled Plasma Etching ◽  
Inductively Coupled
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