Organic insulator, metal-clad laminate, and wiring board

• Main Authors: TAMI YASUHIDE, KAJITA SATOSHI
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

A flame retardant (7) is contained in a resin phase (5). As regards the flame retardant (7), the frequency for which the particle size distribution was evaluated with the particle size divided in increments of 1 [mu]m was greatest in the range of 1 [mu]m or less. The resin phase (5) contains inorganic particles (9). As regards the inorganic particles (9), the frequency for which the particle size distribution was evaluated with the particle size divided in increments of 0.5 [mu]m was least in a range of 0.5 [mu]m or less. The flame retardant (7) has an average particle diameter greater than the average particle diameter of the inorganic particles (9). The number frequency for each of the flame retardant (7) and the inorganic particles (9) decreases as particle diameter increases. 树脂相(5)中包含阻燃剂(7)，对于阻燃剂(7)而言，将粒径以1μm为单位划分来评价粒度分布而得到的个数频率在1μm以下的范围内最大。树脂相(5)包含无机粒子(9)，无机粒子(9)的将粒径以0.5μm为单位划分来评价粒度分布而得到的个数频率在0.5μm以下的范围内最大。阻燃剂(7)的平均粒径大于无机粒子(9)的平均粒径。阻燃剂(7)和无机粒子(9)各自的个数频率随着粒径的增加而减少。