In-Plane Birefringence of Polyimide Films Prepared on Substrates Having Thermal Expansion Anisotropy.

DOI Web Site Web Site 2 Citations 7 References
  • Ando Shinji
    NTT Interdisciplinary Research Laboratories, Nippon Telegraph and Telephone Corporation, 3–9–11 Midori–cho, Musashino–shi, Tokyo 180, Japan
  • Sawada Takashi
    NTT Interdisciplinary Research Laboratories, Nippon Telegraph and Telephone Corporation, 3–9–11 Midori–cho, Musashino–shi, Tokyo 180, Japan
  • Sasaki Shigekuni
    NTT Interdisciplinary Research Laboratories, Nippon Telegraph and Telephone Corporation, 3–9–11 Midori–cho, Musashino–shi, Tokyo 180, Japan

Search this article

Abstract

Polyimide films whose refractive indices in the film plane show anisotropy (in-plane birefringence, Δn) were prepared by a novel method based on the anisotropy of thermal expansion coefficients (Δα ) of single crystal substrates. Polyimide molecular chains were oriented along the crystal axis having a larger thermal expansion coefficient. The Δn of polyimide films increases as the Δα and the larger thermal expansion coefficient of the substrates increase.

Journal

Citations (2)*help

See more

References(7)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top