欢迎登录材料期刊网

材料期刊网

高级检索

采用扫描电镜(SEM)和电子背散射衍射(EBSD)技术,观察和分析了GaAs和GaN晶片热压键合的界面热应力和晶片键合质量.利用EBSD测量了GaAs-GaN键合界面的菊池花样质量、晶格转动、晶格错配和位错密度等应力敏感参数.结果表明,晶片键合质量良好,键合界面中心区域的热应力小于边缘区域的热应力.GaN层和GaAs层中的应力影响范围,在中心区域分别约为100 nm和300 nm,在边缘区域分别约为100 nm和500nm.EBSD显示的应力分布图与模拟应力场相似.模拟和计算表明,最大剥离应力和剪切应力分布在键合界面的边缘.剥离应力是导致晶片解键合的主要原因.

参考文献

[1] 陈斌,王兴妍,黄辉,黄永清,任晓敏.Ⅲ-Ⅴ族半导体晶片键合热应力分析[J].半导体光电,2005(05):421-424,427.
[2] Floyd P.D.;Treat D.W. .Heterogeneous integration of visible AlGaInP and infrared AlInGaAs lasers with GaN-based light sources[J].Electronics Letters,1999(24):2120-2121.
[3] 王慧,郭霞,梁庭,刘诗文,高国,沈光地.基于亲水表面处理的GaAs/GaN晶片直接键合[J].半导体学报,2006(06):1042-1045.
[4] Suhir E. .Analysis of interfacial thermal stresses in a trimaterial assembly[J].Journal of Applied Physics,2001(7):3685-3694.
[5] Suhir E. .Predicted thermal stresses in a bimaterial assembly adhesively bonded at the ends[J].Journal of Applied Physics,2001(1):120-129.
[6] 何国荣,杨国华,郑婉华,吴旭明,王小东,曹玉莲,王青,陈良惠.用有限元方法分析Si/GaAs的键合热应力[J].半导体学报,2006(11):1906-1910.
[7] Analysis of thermal stress in wafer bonding of dissimilar materials for the introduction of an InP-based light emitter into a GaAs-based three-dimensional photonic crystal[J].Applied physics letters,2003(20):3406-3408.
[8] Stanford N;Dunne D .Deformation and Annealing of (011)[01-1] Oriented A1 Single Crystals[J].Acta Materials,2003,51:665-676.
[9] Wilkinson A J;Hirsh P B .Electron Diffraction Based Techniques in Scanning Electron Microscopy of Bulk Materials[J].MICRON,1997,28(04):279-308.
[10] Wilkinson A J .Measurement of Elastic Strains and Small Lattice Rotations Using Electron Back Scatter Diffraction[J].Ultramicroscopy,1996,62:237-247.
[11] J.F. Luo;Y. Ji;T.X. Zhong;Y.Q. Zhang;J.Z. Wang;J.P. Liu;N.H. Niu;J. Han;X. Guo;G.D. Shen .EBSD measurements of elastic strain fields in a GaN/sapphire structure[J].Microelectronics and reliability,2006(1):178-182.
[12] 王慧 .应用GaAs/GaN晶片直接键合技术制备新型单芯片白光发光二极管[D].北京:北京工业大学,2007.
[13] 徐岳生,杨新荣,王海云,唐蕾,刘彩池,魏欣,覃道志.半绝缘砷化镓单晶中碳微区分布的研究[J].物理学报,2005(04):1904-1908.
[14] 何国荣,杨国华,郑婉华,吴旭明,王小东,曹玉莲,王青,陈良惠.用有限元方法分析Si/GaAs的键合热应力[J].半导体学报,2006(11):1906-1910.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%