GLASS CLOTH FOR LOW-DIELECTRIC MATERIAL, AND PREPREG AND PRINTED WIRING SUBSTRATE USING THE SAME

• Main Authors: HIRANO FUMIYA, ABE SHINJI
• Format: Patent
• Language: English; Japanese
• Published: 03.12.2020
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; MINERAL OR SLAG WOOL; PRINTED CIRCUITS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

To provide a glass cloth having improved dielectric properties by reducing a silanol group existing on a surface of the glass cloth while the surface of the glass cloth is treated with polysilazane.SOLUTION: A glass cloth for a low-dielectric material is surface-treated with a composition containing polysilazane in which 0 to 90 mol% of substituents bonded to silicon atoms in one molecule is a group selected from an aliphatic hydrocarbon group with 1 to 12 carbon atoms, an aromatic hydrocarbon group with 6 to 12 carbon atoms, an alkoxy group with 1 to 6 carbon atoms, and a monovalent organic group having one carbon-carbon unsaturated bond with 2 to 12 carbon atoms in one molecule and is used for 5G/IoT and a printed wiring substrate for high frequency.SELECTED DRAWING: None 【課題】ガラスクロスの表面がポリシラザンで処理され、ガラスクロス表面に存在するシラノール基を低減させて誘電特性を向上させたガラスクロスを提供する。【解決手段】低誘電材料用ガラスクロスが、１分子中のケイ素原子に結合する置換基の０〜９０モル％が炭素数１〜１２の脂肪族炭化水素基、炭素数６〜１２の芳香族炭化水素基、炭素数１〜６のアルコキシ基、及び１分子中に１個の炭素−炭素不飽和結合を有する炭素数２〜１２の１価の有機基から選ばれる基であるポリシラザンを含有する組成物で表面処理され、５Ｇ／ＩｏＴ向けおよび高周波用プリント配線基板に用いられる。【選択図】なし