A new type of low-κ dielectric films based on polysilsesquioxanes

R. Q. Su, T. E. Müller, J. Procházka, J. A. Lercher

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

A new type of organic-inorganic hybrid copolymer with low dielectric constant κ was synthesized by i) platinum catalyzed hydrosilylation of H8Si8O12, T8H and (HSiMe2O)8Si8O12, Q8M8H with hexadiene or ii) hydrolytic condensation of [(EtO)3Si(CH2)2]8- Si8O12, T8R and [(EtO)3Si(CH2)2SiMe2O]8- Si8O12, Q8M8R with water. Copolymer films were fabricated by spin-coating techniques. Dielectric constant measurements showed that the new copolymers have a relatively low κ (2.1-2.7) compared to the reference data. Properties such as film adhesion and hardness were found to be closely correlated with the length of cross linker. Scanning electron microscopy (SEM) revealed that all copolymer films are planar and flat.

Original languageEnglish
Pages (from-to)1369-1373
Number of pages5
JournalAdvanced Materials
Volume14
Issue number19
DOIs
StatePublished - 2 Oct 2002

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