Patent ID: 8362363

Claim:
A prepreg with a carrier, comprising: a prepreg comprising: a sheet-like base member; a first insulating resin layer provided to cover a surface of said sheet-like base member; and a second insulating resin layer provided to cover a back surface of said sheet-like base member; a first carrier provided to cover said first insulating resin layer; and a second carrier provided to cover said second insulating resin layer, wherein said first and said second insulating resin layers have different resin compositions or said first and said second insulating resin layers have different thicknesses, said first and said second insulating resin layers have different colors in an entirety of each of said first and said second insulating resin layers, or said first and said second carriers have different colors, and a front surface and a back surface of said prepreg with the carrier is visually identifiable.