用磁控溅射法制备铜钨合金薄膜, 采用能谱仪、X射线衍射仪、透射和扫描电镜、电阻计和显微硬度仪等对合金薄膜的成分、结构和性能进行了表征, 探讨了钨原子分数的影响。结果表明: 含原子分数31.8%~54.8%钨的铜钨膜呈非晶态, 表面较平整; 含18%和60%钨的膜为晶态, 且出现固溶度扩展, 分别存在fcc Cu(W)亚稳过饱和固溶体和bcc W(Cu)固溶体, 铜钨膜电阻率高于纯铜膜的, 非晶铜钨膜电阻率较晶态膜高1.9倍以上; 铜钨膜硬度与钨含量呈正相关, 非晶及晶态铜钨膜硬度分别低于和略高于Voigt公式的计算值。
所属栏目
云南省自然科学基金重点资助项目(2004E0004Z); 国家自然科学基金资助项目(50871049); 云南省教育厅科学研究基金资助项目(09Y0091)
收稿日期
2010/2/262010/11/18
作者单位
郭中正:昆明理工大学云南省新材料制备与加工重点实验室, 昆明 650093
孙勇:昆明理工大学云南省新材料制备与加工重点实验室, 昆明 650093
周铖:昆明理工大学云南省新材料制备与加工重点实验室, 昆明 650093
段永华:昆明理工大学云南省新材料制备与加工重点实验室, 昆明 650093
彭明军:昆明理工大学云南省新材料制备与加工重点实验室, 昆明 650093
备注
郭中正(1983-), 男, 贵州安顺人, 博士研究生。
引用该论文:
GUO Zhong-zheng,SUN Yong,ZHOU Cheng,DUAN Yong-hua,PENG Ming-jun.Influence of W Content on Structure and Properties of Cu-W Alloy Thin Films Deposited by Magnetron Sputtering[J].Materials for mechancial engineering,2011,35(4):20~24
郭中正,孙勇,周铖,段永华,彭明军.钨含量对磁控溅射铜钨合金薄膜结构和性能的影响[J].机械工程材料,2011,35(4):20~24
参考文献
【1】
汪渊,陈元华,徐可为,等.Cu-W薄膜表面形貌各向异性与相结构[J].金属学报,2005,41(2):123-127.
【2】
WANG C, BRAULT P, ZAEPFFEL C,et al. Deposition and structure of W-Cu multilayer coatings by magnetron sputtering[J].J Phys D, Appl Phys,2003,36:2709-2713.
【3】
CHU J P, LIN C H. Thermal stability of Cu(W) and Cu(Mo) films for advanced barrierless Cu metallization: Effects of annealing time[J].Journal of Electronic Materials,2006,35(11):1933-1936.
【4】
TSEVAS S, VASILOPOULOU M, KOUVATSOS D N,et al. Characteristics of MOS diodes fabricated using sputter-deposited W or Cu/W films[J].Microelectronic Engineering,2006,83:1434-1437.
【5】
CHU J P, LIU C J, LIN C H,et al. Characterizations of super hard Cu films containing insoluble W prepared by sputter deposition[J].Materials Chemistry and Physics,2001,72:286-289.
【6】
WEN S P, ZONG R L, ZENG F,et al. Evaluating modulus and hardness enhancement in evaporated Cu/W multilayers[J].Acta Materialia,2007,55:345-351.
【7】
ZHOU L P, WANG M P, WANG R,et al. Enhanced adhesion of Cu-W thin films by ion beam assisting bombardment implanting[J].Trans Nonferrous Met Soc China,2008,18:372-377.
【8】
RADIC′ N, STUBICˇAR M. Microhardness properties of Cu-W amorphous thin films[J].J Mater Sci,1998,33:3401-3405.
【9】
ZONG R L, WEN S P, ZENG P,et al. Nanoindentation stu-dies of Cu-W alloy films prepared by magnetron sputtering[J].Journal of Alloys and Compounds,2008,464:544-549.
【10】
RIZZO H F, MASSALSKI T B, NASTASI M. Metastable crystalline and amorphous structures formed in the Cu-W system by vapor deposition[J].Metallurgical Transactions A,1993,24(5):1027-1037.
【11】
WANG H, ZALUZEC M J, RIGSBEE J M. Microstructure and mechanical properties of sputter-deposited Cu1-xTax alloys[J].Metallurgical and Materials Transactions,1997,28(3):917-925.
【12】
潘金生,仝健民,田民波.材料科学基础[M].北京:清华大学出版社,1998:91-102.
【13】
SAUNDERS N, MIODONBNIK A P. Phase formation in co-deposited metallic alloy thin films[J].Journal of Materials Science,1987,22:629-637.
【14】
高诚辉.非晶态合金镀及其镀层性能[M].北京:科学出版社,2004:170-171.
【15】
罗志华,赵玉涛,李素敏.磁控溅射制备高聚物基TiO2-CeO2复合薄膜的组织和性能[J].机械工程材料,2007,31(9):37-40.
【16】
CANTOR B, CAHN R W. Metastable alloy phases by co-sputtering[J].Acta Metall,1976,24:845-852.
【17】
MAYADAS A F, SHATZKES M. Electrical-resistivity model for polycrystalline films: the case of arbitrary reflection at external surfaces[J].Phys Rev B1,1970,1(4):1382-1389.
【18】
KIM H S, ESTRIN Y, BUSH M B. Plastic deformation behaviour of fine-grained materials[J].Acta Mater,2000,48:493-504.
【19】
LAM N Q, OKAMOTO P R. A unified approach to solid-state amorphization and melting[J].Material Research Bulletin,1994,19:41-46.