Low dielectric-constant insulators for electronics applications

C. C. Cho, D. M. Smith, J. Anderson

Research output: Contribution to journalReview articlepeer-review

28 Scopus citations


The decreasing device geometry and the increasing use of portable electronics have escalated the need to reduce the capacitance of electronic devices so that higher speed, less crosstalk and lower power consumption can be achieved. High porosity SiO2 (silica xerogel) and Teflon® AF are two examples that show the challenges in introducing new intermetal dielectrics into VLSI interconnect structures. Teflon® AF and crack-free silica xerogel films have been grown by spin-coating and show dielectric constants of 1.9 and 1.14-1.56 (at optical frequency), respectively. The growth processes and the film characteristics are discussed.

Original languageEnglish (US)
Pages (from-to)91-95
Number of pages5
JournalMaterials Chemistry and Physics
Issue number2
StatePublished - Nov 15 1995

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics


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