GLASS CLOTH FOR PRINTED CIRCUIT PLATE, AND MULTILAYER PLATE

摘要

In a glass cloth structured of warps and woofs, an average value (A)(mum) of and a standard deviation (sigma)(mum) of fiber bundle cross-sectional widths respectively of the warps and the woofs satisfy expression (1) below, and an average value (A)(mum) of fiber bundle cross-sectional widths and an average value (B)(mum) of fiber bundle cross-sectional thicknesses satisfy expression (2) below. 2sigma <= A x 0.100 ... (1) arctan(B/A) <= 7.0º ... (2)