Title :
New halogen-free high elastic modulus build-up material
Author :
Ogawa, Nobuyuki ; Horiuchi, Takeshi ; Takahashi, Atsushi ; Tanabe, Takahiro ; Kumakura, Toshihisa ; Suzuki, Takayuki
Author_Institution :
PWB Mater. Lab., Hitachi Chem. Co. Ltd., Ibaraki, Japan
Abstract :
The authors have developed a new build-up material MCF-6000G, which has high elastic modulus and has the incombustibility of UL94 level V-0 without halogenated flame retardant. Applying high Tg epoxy resin and a special fibrous filler gave high elastic modulus. The halogen free incombustible system was achieved by combining the following techniques: adoption of aromatic-ring rich resin and carbonizing catalyst; addition of suitable metal hydroxides and fibrous filler; high density filling and filler/resin interface control. MCF-6000G contains no halogen and has a high elastic modulus, high Tg, low coefficient of thermal expansion (CTE), and sufficient processability. It will be a promising environmentally-friendly material for PWBs
Keywords :
elastic moduli; environmental factors; filled polymers; printed circuit manufacture; thermal expansion; MCF6000G; PWBs; aromatic-ring rich resin; build-up material; carbonizing catalyst; coefficient of thermal expansion; elastic modulus; environmentally-friendly material; epoxy resin; fibrous filler; filler/resin interface control; halogen-free material; incombustibility; Chemicals; Control systems; Epoxy resins; Filling; Flame retardants; Laminates; Research and development; Resistance heating; Temperature; Thermal expansion;
Conference_Titel :
Environmentally Conscious Design and Inverse Manufacturing, 2001. Proceedings EcoDesign 2001: Second International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
0-7695-1266-6
DOI :
10.1109/.2001.992517
