Uses the glass fiber woven cloth and the said glass fiber woven cloth the printed circuit board

摘要

PURPOSE:To provide a glass fiber woven fabric having small warpage, twist and a printed circuit board. CONSTITUTION:This invention relates to a woven fabric having a configuration in which a ratio of A to B becomes A:B=1.1+ or -0.3:1, where A=(density of wefts)X(actual number of twists of wefts), which is discovered by an applicant and B=(density of warps)X(actual number of twists of warps), and a printed circuit board formed of the fabric.