| abstract |
Insulating material containing a cyclic olefin polymer, specifically, a high density mount containing a cyclic olefin polymer containing 50 mol% or more of repeating units derived from a cyclic olefin monomer, and having an interlayer via hole of 200 µm or less in diameter. The interlayer insulating material for a substrate, a dry film formed of a curable resin composition containing a cyclic olefin polymer having a number average molecular weight in the range of 1,000 to 1,000,000 and a curing agent, and a cyclic olefin polymer on one side of the metal foil. Metal foil with resin formed by forming a film. Laminates, multilayered laminates, sequential multilayered laminates using these insulating materials, and their production methods. |