LAMINATED UNCURED SHEET

• Main Authors: TAMI YASUHIDE, NAGASAWA TADASHI, CHIKARA CHIE, KAJITA SATOSHI, ASHIURA TOMOJI
• Format: Patent
• Language: English; Japanese
• Published: 09.01.2020
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PERFORMING OPERATIONS; PRINTED CIRCUITS; TRANSPORTING

To provide a laminated uncured sheet with which a wiring board excellent in electrical reliability can be obtained.SOLUTION: A laminated uncured sheet 1 has a structure in which resin sheet layers 2 and resin layers 3 are alternately laminated and is formed with through-holes 4 penetrating in a lamination direction. The resin sheet layers are formed of a thermosetting resin composition containing a thermosetting resin as a main component. The resin layers are formed of a thermoplastic resin composition containing a thermoplastic resin. The thermoplastic resin composition 31 is attached to an inner wall surface 5 of the resin sheet layer portion in the through-hole.SELECTED DRAWING: Figure 1 【課題】電気的信頼性に優れた配線基板が得られる積層未硬化シートを提供する。【解決手段】積層未硬化シート１は、樹脂シート層２と樹脂層３とが交互に積層され、積層方向に貫通する貫通孔４が形成された構造を有する。樹脂シート層は、熱硬化性樹脂を主成分とする熱硬化性樹脂組成物で形成される。樹脂層は、熱可塑性樹脂を含む熱可塑性樹脂組成物で形成される。貫通孔における樹脂シート層部分の内壁面５に熱可塑性樹脂組成物３１が付着している。【選択図】図１