Roll type long stripe glass cloth, pre-preg, and printed wiring board wherein the roll type long stripe glass cloth has a small variation in dimensional change when it is manufactured as a printed wiring board

• Main Authors: MATSUDA, ITTETSU, SEKOMUNE, IZUMI, ENDO, MASAAKI, SATO, SHIGERU
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2020
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

The present invention provides a roll tyep long stripe glass cloth having a small variation in dimensional change when it is manufactured as a printed wiring board, and a pre-preg and a printed wiring board using the glass cloth. The roll tyep long stripe glass cloth of the present invention is formed by winding a glass cloth woven from a glass yarn including a plurality of glass filaments as warps and wefts around a winding core tube, wherein the thickness of the glass cloth is from 8 to 100 [mu]m, the roll density (g/cm3) of the roll type long stripe glass cloth is 1.02 to 1.25 times of the sheet density (g/cm3) of the glass cloth, and the elasticity coefficient of the glass yarn is from 50 to 70 GPa.