Study of Atmospheric Pressure Plasma Temperature Based on Silicon Carbide Etching

In order to further understand the excitation process of inductively coupled plasma (ICP) and improve the etching efficiency of silicon carbide (SiC), the effect of temperature and atmospheric pressure on plasma etching of silicon carbide was investigated. Based on the infrared temperature measureme...

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Main Authors: Shaozhen Xu, Julong Yuan, Jianxing Zhou, Kun Cheng, Hezhong Gan
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/14/5/992
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author Shaozhen Xu
Julong Yuan
Jianxing Zhou
Kun Cheng
Hezhong Gan
author_facet Shaozhen Xu
Julong Yuan
Jianxing Zhou
Kun Cheng
Hezhong Gan
author_sort Shaozhen Xu
collection DOAJ
description In order to further understand the excitation process of inductively coupled plasma (ICP) and improve the etching efficiency of silicon carbide (SiC), the effect of temperature and atmospheric pressure on plasma etching of silicon carbide was investigated. Based on the infrared temperature measurement method, the temperature of the plasma reaction region was measured. The single factor method was used to study the effect of the working gas flow rate and the RF power on the plasma region temperature. Fixed-point processing of SiC wafers analyzes the effect of plasma region temperature on the etching rate. The experimental results showed that the plasma temperature increased with increasing Ar gas until it reached the maximum value at 15 slm and decreased with increasing flow rate; the plasma temperature increased with a CF<sub>4</sub> flow rate from 0 to 45 sccm until the temperature stabilized when the flow rate reached 45 sccm. The higher the RF power, the higher the plasma region’s temperature. The higher the plasma region temperature, the faster the etching rate and the more pronounced the effect on the non-linear effect of the removal function. Therefore, it can be determined that for ICP processing-based chemical reactions, the increase in plasma reaction region temperature leads to a faster SiC etching rate. By processing the dwell time in sections, the nonlinear effect caused by the heat accumulation on the component surface is effectively improved.
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spelling doaj.art-d185e0418471477dbc4720ab0b8708dd2023-11-18T02:30:10ZengMDPI AGMicromachines2072-666X2023-05-0114599210.3390/mi14050992Study of Atmospheric Pressure Plasma Temperature Based on Silicon Carbide EtchingShaozhen Xu0Julong Yuan1Jianxing Zhou2Kun Cheng3Hezhong Gan4College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, ChinaCollege of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, ChinaCollege of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, ChinaCollege of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, ChinaCollege of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, ChinaIn order to further understand the excitation process of inductively coupled plasma (ICP) and improve the etching efficiency of silicon carbide (SiC), the effect of temperature and atmospheric pressure on plasma etching of silicon carbide was investigated. Based on the infrared temperature measurement method, the temperature of the plasma reaction region was measured. The single factor method was used to study the effect of the working gas flow rate and the RF power on the plasma region temperature. Fixed-point processing of SiC wafers analyzes the effect of plasma region temperature on the etching rate. The experimental results showed that the plasma temperature increased with increasing Ar gas until it reached the maximum value at 15 slm and decreased with increasing flow rate; the plasma temperature increased with a CF<sub>4</sub> flow rate from 0 to 45 sccm until the temperature stabilized when the flow rate reached 45 sccm. The higher the RF power, the higher the plasma region’s temperature. The higher the plasma region temperature, the faster the etching rate and the more pronounced the effect on the non-linear effect of the removal function. Therefore, it can be determined that for ICP processing-based chemical reactions, the increase in plasma reaction region temperature leads to a faster SiC etching rate. By processing the dwell time in sections, the nonlinear effect caused by the heat accumulation on the component surface is effectively improved.https://www.mdpi.com/2072-666X/14/5/992plasma temperaturesilicon carbideplasma etchingremoval function
spellingShingle Shaozhen Xu
Julong Yuan
Jianxing Zhou
Kun Cheng
Hezhong Gan
Study of Atmospheric Pressure Plasma Temperature Based on Silicon Carbide Etching
Micromachines
plasma temperature
silicon carbide
plasma etching
removal function
title Study of Atmospheric Pressure Plasma Temperature Based on Silicon Carbide Etching
title_full Study of Atmospheric Pressure Plasma Temperature Based on Silicon Carbide Etching
title_fullStr Study of Atmospheric Pressure Plasma Temperature Based on Silicon Carbide Etching
title_full_unstemmed Study of Atmospheric Pressure Plasma Temperature Based on Silicon Carbide Etching
title_short Study of Atmospheric Pressure Plasma Temperature Based on Silicon Carbide Etching
title_sort study of atmospheric pressure plasma temperature based on silicon carbide etching
topic plasma temperature
silicon carbide
plasma etching
removal function
url https://www.mdpi.com/2072-666X/14/5/992
work_keys_str_mv AT shaozhenxu studyofatmosphericpressureplasmatemperaturebasedonsiliconcarbideetching
AT julongyuan studyofatmosphericpressureplasmatemperaturebasedonsiliconcarbideetching
AT jianxingzhou studyofatmosphericpressureplasmatemperaturebasedonsiliconcarbideetching
AT kuncheng studyofatmosphericpressureplasmatemperaturebasedonsiliconcarbideetching
AT hezhonggan studyofatmosphericpressureplasmatemperaturebasedonsiliconcarbideetching