Organofluoro silicate glass:: A dense low-k dielectric with superior materials properties

被引:6
作者
Cheng, Y. L. [2 ,3 ]
Wang, Y. L. [1 ,3 ]
Juang, Yungder [1 ]
O'Neill, M. L. [4 ]
Lukas, A. S. [4 ]
Karwacki, E. J. [4 ]
NlcGuian, S. A. [5 ]
Tang, Allen [5 ]
Wu, C. L. [5 ]
机构
[1] Natl Univ Tainan, Dept Mat Sci, Tainan, Taiwan
[2] Natl Chi Nan Univ, Dept Elect Engn, Nantou, Taiwan
[3] Natl Chiayi Univ, Dept Appl Phys, Chiayi, Taiwan
[4] Air Prod & Chem Inc, Electr Technol, Allentown, PA USA
[5] Air Prod Asia Inc, Taipei, Taiwan
关键词
D O I
10.1016/j.jpcs.2007.11.019
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Organofluorosilicate glass (OFSG) films with the composition Si:O:C:H:F were deposited using plasma-enhanced chemical vapor deposition (PECVD) using the mixtures of trimethylsilane (3MS), silicon tetrafluoride (SiF4) and oxygen(O-2). OFSG films have better mechanical strength, thermo-oxidative stability and adhesion ability as compared with those of organosilicate glass (OSG) films deposited from 3MS and O-2. We found that the increased density of OFSG films, which helped improving mechanical strength, was balanced by the presence of non-polarizableSi-F functionality, which leads to a lower dielectric constant and appeared to be a promising low-k material for interlayer dielectrics application. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:518 / 522
页数:5
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