Title:
FILM FOR LASER VIA PROCESSING
Document Type and Number:
Japanese Patent JP2005126559
Kind Code:
A
Abstract:
To obtain a film good in the capability of laser via processing with good productivity.
This film is a polyester film the substrate layer of which is subjected to biaxial orientation. The substrate layer has a glass transition temperature of 100-160°C, a heat conductivity of ≥0.10 W/(m×K), a light transmittance of ≤30% at the wavelength of 355 nm, and a Young's modulus of 5-20 GPa.
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Inventors:
YOSHIDA TETSUO
NAKAGAWA MASARU
NAKAGAWA MASARU
Application Number:
JP2003363175A
Publication Date:
May 19, 2005
Filing Date:
October 23, 2003
Export Citation:
Assignee:
TEIJIN DUPONT FILMS JAPAN LTD
International Classes:
B23K26/382; B32B15/08; B32B15/09; C08J5/18; H05K1/03; (IPC1-7): C08J5/18; B32B15/08; H05K1/03
Attorney, Agent or Firm:
Hideko Mihara