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人工晶体学报 ›› 2026, Vol. 55 ›› Issue (9): 1389-1409.DOI: 10.16553/j.cnki.issn1000-985x.2026.0026

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超宽禁带半导体氧化镓单晶工艺概述

李龙(), 宫学源, 李培刚   

  1. 北京镓创科技有限公司,北京 101108
  • 收稿日期:2026-02-13 出版日期:2026-09-20 发布日期:2026-09-29
  • 作者简介:李龙(1977—),男,内蒙古自治区人,博士,正高级工程师。E-mail:lichen040928@163.com
  • 基金资助:
    北京市通州区科技创新人才资助项目(CXTD2025003)

Overview of the Process for Ultra-Wide Bandgap Semiconductor Gallium Oxide Single Crystals

LI Long(), GONG Xueyuan, LI Peigang   

  1. Beijing Gallium Chance Technology Co. ,Ltd,Beijing 101108,China
  • Received:2026-02-13 Online:2026-09-20 Published:2026-09-29

摘要: 本文梳理了氧化镓(β-Ga2O3)单晶生长的多种方法,包括助熔法、焰熔法、气相法、提拉法、浮区法、导模法、下降法、铸造法、冷埚法和液滴法等,并总结了掺杂、长晶工艺及热处理工艺等关键参数对晶体质量的影响。通过详细阐述各工艺环节的核心技术参数,明确不同长晶方法的工艺窗口;从可实现晶体尺寸上限、晶体质量、掺杂适配性、坩埚依赖性、气氛控制难度及产业化兼容性等维度对比了各类工艺的特点,指出了当前氧化镓单晶技术面临的主要挑战,并提出了其工艺发展的主要方向。同时,结合国内外产业现状,给出了优化氧化镓长晶工艺流程、提升半导体材料性能的具体建议,旨在推动氧化镓半导体材料的规模化生产与应用,助力高功率电力电子器件、深紫外探测器件等核心产品实现性能突破。

关键词: 超宽禁带半导体; 氧化镓; 单晶生长; 工艺参数; 发展趋势

Abstract: This paper reviews various methods for growing single crystals of gallium oxide (β-Ga2O3), including flux method, verneuil technique, vapor phase method, Czochralski method, floating zone growth, edge-defined film-fed growth, vertical Bridgman method, casting method, oxide crystal growth from cold crucible, and drop-fed growth. It also summarizes the impact of key parameters such as doping, crystal growth processes, and heat treatment on crystal quality. By detailing the core technical parameters of each process step, the study delineates the optimal operating parameters for different crystal growth techniques. The paper compares the characteristics of various methods across multiple dimensions including achievable maximum dimensions, crystal quality, doping compatibility, crucible dependence, atmosphere control complexity and industrial scalability, and identifies the primary challenges currently facing gallium oxide single crystal technology while proposing key directions for its advancement. Furthermore, based on global industry insights, practical recommendations are provided to optimize gallium oxide crystal growth processes and enhance semiconductor material performance, aiming to facilitate large-scale production and application of gallium oxide semiconductors and drive breakthroughs in critical products such as high-power power electronic devices and deep-ultraviolet detection devices.

Key words: ultra-wide bandgap semiconductor; gallium oxide; single crystal growth; process parameter; development trend

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