Classifications of Dislocations in 4H-SiC Wafer by Confocal Laser Scanning Microscopy

被引:0
作者
Chole, Nilesh [1 ,2 ]
Patel, Ankit [1 ]
Mittal, Mani [1 ]
Saho, Praveen [1 ]
Asthania, Meenakshi [1 ]
Marandi, Vivek [1 ]
Kumar, Alok [1 ]
Das, Biswanath [1 ]
Rawal, D. S. [1 ]
Bokolia, Renuka [2 ]
Thakur, O. P. [1 ]
机构
[1] Solid State Phys Lab, New Delhi, India
[2] Delhi Technol Univ, Dept Appl Phys, New Delhi, India
关键词
Silicon carbide; KOH etching; surface dislocations; semi insulating; confocal microscopy; SILICON;
D O I
10.1080/10584587.2025.2482435
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
4H polytype Silicon carbide sample was etched using molten KOH. Etch pits were carefully observed using Confocal Laser scanning microscope, which is one of the promising techniques for the identification of dislocations. Depth profiling and inclination angle of etch pits provide a new way to identify and classify various defects in the SiC sample.
引用
收藏
页数:8
相关论文
共 12 条
[1]  
Gao Y, 2004, MATER RES SOC SYMP P, V815, P139
[2]   Mechanism of molten KOH etching of SiC single crystals: Comparative study with thermal oxidation [J].
Katsuno, M ;
Ohtani, N ;
Takahashi, J ;
Yashiro, H ;
Kanaya, M .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1999, 38 (08) :4661-4665
[3]  
Lendenmann H, 2002, MATER SCI FORUM, V433-4, P901, DOI 10.4028/www.scientific.net/MSF.433-436.901
[4]   Investigation of micropipe and defects in molten KOH etching of 6H n-silicon carbide (SiC) single crystal [J].
Mahajan, Sandeep ;
Rokade, M. V. ;
Ali, S. T. ;
Rao, K. Srinivasa ;
Munirathnam, N. R. ;
Prakash, T. L. ;
Amalnerkar, D. P. .
MATERIALS LETTERS, 2013, 101 :72-75
[5]  
Nakashima S, 1997, PHYS STATUS SOLIDI A, V162, P39, DOI 10.1002/1521-396X(199707)162:1<39::AID-PSSA39>3.0.CO
[6]  
2-L
[7]   High Resolution X-ray Diffraction (HRXRD) Studies of the Initial Stages of PVT-Growth of 4H-SiC Crystals [J].
Ohtani, N. ;
Katsuno, M. ;
Fujimoto, T. ;
Sato, S. ;
Tsuge, H. ;
Ohashi, W. ;
Matsuhata, H. ;
Kitabatake, M. .
SILICON CARBIDE AND RELATED MATERIALS 2011, PTS 1 AND 2, 2012, 717-720 :489-492
[8]  
Olezarsen, About us
[9]   Optimization of KOH etching parameters for quantitative defect recognition in n- and p-type doped SiC [J].
Sakwe, SA ;
Müller, R ;
Wellmann, PJ .
JOURNAL OF CRYSTAL GROWTH, 2006, 289 (02) :520-526
[10]   Basal plane dislocation conversion near the epilayer/substrate interface in epitaxial growth of 4° off-axis 4H-SiC [J].
Song, Haizheng ;
Sudarshan, Tangali S. .
JOURNAL OF CRYSTAL GROWTH, 2013, 371 :94-101