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Influence of substrate metals on the crystal growth of AIN films
  • ISSN号:1000-2375
  • 期刊名称:《湖北大学学报:自然科学版》
  • 时间:0
  • 分类:O781[理学—晶体学] TB43[一般工业技术]
  • 作者机构:[1]School of Physics and Electronic Technology, Hubei University, Wuhan 430062, China
  • 相关基金:This work was financially supported by the National Natural Science Foundation of China (No. 50872031) and the Natural Science Foundation of Hubei Province, China (No.2 OOSCDA018).
中文摘要:

AlN 电影被在各种各样的底部电极上劈啪作响的反应收音机频率 RF 扔,例如艾尔, Ti,瞬间, Au/Ti,和 Pt/Ti。AlN 薄电影的取向上的底层金属的效果被调查。X 光检查衍射,原子力量显微镜学,和地排放扫描电子显微镜学的结果证明 AlN 电影的取向显然取决于底层金属的类型。在各种各样的金属电极上扔的 AlN 电影的差别在在 AlN 材料和底层金属之间的格子失配和热扩大系数被归因于差别。在 Pt/Ti 电极上扔的 AlN 电影高度与井粗糙的圆柱的结构揭示 c 轴取向。在完成高质量的 AlN 电影和高效的电影体积的 Pt/Ti 电极的积极角色声学的共鸣器 FBAR 可以被归因于更小的格子失配以及在扔的 AlN 材料和 Pt/Ti 电极底层之间的热扩大系数的类似。

英文摘要:

AlN films were deposited by reactive radio frequency (RF) sputtering on various bottom electrodes, such as Al, Ti, Mo, Au/Ti, and Pt/Ti. The effects of substrate metals on the orientation of AlN thin films were investigated. The results of X-ray diffraction, atomic force microscopy, and field emission scanning electron microscopy show that the orientation of AlN films depends on the kinds of substrate metals evidently. The differences of AlN films deposited on various metal electrodes are attributed to the differences in lattice mismatch and thermal expansion coefficient between the AlN material and substrate metals. The AlN film deposited on the Pt/Ti electrode reveals highly the c-axis orientation with well-textured columnar structure. The positive role of the Pt/Ti electrode in achieving the high-quality AlN films and high-performance film bulk acoustic resonator (FBAR) may be attributed to the smaller lattice mismatch as well as the similarity of thermal expansion coefficient between the deposited AlN material and the Pt/Ti electrode substrate.

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期刊信息
  • 《湖北大学学报:自然科学版》
  • 北大核心期刊(2008版)
  • 主管单位:湖北省教育厅
  • 主办单位:湖北大学
  • 主编:王世敏
  • 地址:武汉市武昌区友谊大道368号
  • 邮编:430062
  • 邮箱:hdxbzkb@163.com
  • 电话:027-88663900
  • 国际标准刊号:ISSN:1000-2375
  • 国内统一刊号:ISSN:42-1212/N
  • 邮发代号:38-45
  • 获奖情况:
  • 本刊现为"中国科技核心期刊"、"湖北省优秀期刊"、"...
  • 国内外数据库收录:
  • 美国化学文摘(网络版),德国数学文摘,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版)
  • 被引量:4765