GLASS CLOTH, PREPREG, LAMINATED SHEET, AND PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To provide a glass cloth capable of forming laminated sheets and printed wiring boards each having high reliability of electrical properties. SOLUTION: This glass cloth is characterized by satisfying a condition that the value of formula (1) is >=88%, wherein the width of the warp is A (mm), the width of the weft is B (mm), the number of the warp is (a) per 25.4 mm, the number of the weft is b per 25.4 mm. The glass share in 1 inch×1 inch can be increased.