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人工晶体学报 ›› 2026, Vol. 55 ›› Issue (8): 1261-1265.DOI: 10.16553/j.cnki.issn1000-985x.2026.0063

• 研究论文 • 上一篇    下一篇

直径360 mm多晶碳化硅的生长及其性能研究

王帆1,2(), 王安琦1,2, 黄渊超1,2, 杨正宏3, 韩学峰1,2, 杨德仁1,2, 皮孝东1,2(), 董建勋3,4()   

  1. 1.浙江大学材料科学与工程学院,硅及先进半导体材料全国重点实验室,杭州 310027
    2.浙江大学杭州国际科创中心先进半导体研究院,杭州 311200
    3.河南中宜创芯发展有限公司,平顶山 467000
    4.河南省碳化硅功能材料产业研究院,平顶山 467000
  • 收稿日期:2026-04-16 出版日期:2026-08-20 发布日期:2026-08-26
  • 通信作者: 董建勋,博士,正高级工程师。E-mail:djxun518@126.com
    皮孝东,博士,教授。E-mail:xdpi@zju.edu.cn
  • 作者简介:王帆(2000—),男,江苏省人,硕士研究生。E-mail:17762468996@163.com
  • 基金资助:
    国家自然科学基金(52202189)

Growth and Properties of 360 mm Diameter Polycrystalline Silicon Carbide

WANG Fan1,2(), WANG Anqi1,2, HUANG Yuanchao1,2, YANG Zhenghong3, HAN Xuefeng1,2, YANG Deren1,2, PI Xiaodong1,2(), DONG Jianxun3,4()   

  1. 1.State Key Laboratory of Silicon and Advanced Semiconductor Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China
    2.Institute of Advanced Semiconductors,Hangzhou Global Scientific and Technological Innovation Center,Zhejiang University,Hangzhou 311200,China
    3.Henan Zhongyi Chuangxin Development Co. ,Ltd. ,Pingdingshan 467000,China
    4.Henan Institute of Silicon Carbide Functional Materials Industry,Pingdingshan 467000,China
  • Received:2026-04-16 Online:2026-08-20 Published:2026-08-26

摘要: 大尺寸多晶碳化硅在半导体部件等领域具有重要的应用前景,但其高质量、大直径的生长仍面临挑战。本研究采用物理气相传输(PVT)法制备了直径约360 mm(约14英寸,1英寸=25.4 mm)的多晶碳化硅,并利用系列测试手段,对其晶粒、晶型、热导率、电阻率、载流子浓度及弹性模量等进行了表征。结果表明,所制备的多晶碳化硅表面无宏观裂纹,晶粒大小比较均匀,晶型为4H-SiC,热导率平均值约为323.8 W/(m·K),载流子浓度量级约为1017 cm-3,弹性模量在287~311 GPa。本研究表明,大尺寸多晶碳化硅拥有均匀的导热性能及结构的完整性,有望满足半导体部件等应用所需的高性价比。

关键词: 多晶碳化硅; 物理气相传输法; 热导率; 载流子浓度; 弹性模量

Abstract: Large-size polycrystalline silicon carbide (SiC) holds significant application prospects in the fields of semiconductor components, but its growth with high quality and large diameter remains challenges. This study employed the physical vapor transport (PVT) method to fabricate polycrystalline silicon carbide with a diameter of about 360 mm (approximately 14 inches, 1 inch=25.4 mm). A series of characterization techniques were utilized to evaluate grain structure, crystal type, thermal conductivity, electrical resistivity, carrier concentration, and elastic modulus of polycrystalline silicon carbide. The results show that the as-fabricated polycrystalline silicon carbide exhibits a macroscopically crack-free surface and relatively uniform grain size distribution. The material crystal type is identified as 4H-SiC. The average thermal conductivity is approximately 323.8 W/(m·K), the carrier concentration is on the order of 1017 cm-3, and the elastic modulus ranges from 287 GPa to 311 GPa. This study demonstrates that large-size polycrystalline silicon carbide possesses uniform thermal conductivity and structural integrity, which is expected to meet the demand for cost-effective materials required for semiconductor components and other applications.

Key words: polycrystalline silicon carbide; physical vapor transport method; thermal conductivity; carrier concentration; elastic modulus

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