Silk polymer coating with low dielectric constant and high thermal stability for ULSI interlayer dielectric

被引:57
作者
Townsend, PH [1 ]
Martin, SJ [1 ]
Godschalx, J [1 ]
Romer, DR [1 ]
Smith, DW [1 ]
Castillo, D [1 ]
DeVries, R [1 ]
Buske, G [1 ]
Rondan, N [1 ]
Froelicher, S [1 ]
Marshall, J [1 ]
Shaffer, EO [1 ]
Im, JH [1 ]
机构
[1] Dow Chem Co, ME Pruitt Res Ctr, Midland, MI 48674 USA
来源
LOW-DIELECTRIC CONSTANT MATERIALS III | 1997年 / 476卷
关键词
D O I
10.1557/PROC-476-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A novel polymer has been developed for use as a thin film dielectric in the interconnect structure of high density integrated circuits. The coating is applied to the substrate as an oligomeric solution, SILK*, using conventional spin coating equipment and produces highly uniform films after curing at 400 degrees C to 450 degrees C. The oligomeric solution, with a viscosity of ca. 30 cPs, is readily handled on standard thin film coating equipment. Polymerization does not require a catalyst. There is no water evolved during the polymerization. The resulting polymer network is an aromatic hydrocarbon with an isotropic structure and contains no fluorine.
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页码:9 / 17
页数:9
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