Patent ID: 9091921
Filing Date: 2015-07-28
Classification: G03F,H05K

Abstract:
1. A photosensitive dry film, comprising: a photosensitive resin layer which is to be adhered to a member for adhesion and capable of forming a pattern, the photosensitive resin layer including an inorganic filler, wherein the photosensitive resin layer comprises a plurality of layers having different contents of the inorganic filler, said photosensitive resin layer on a side to be adhered to the member for adhesion includes the inorganic filler at a lower content than the photosensitive resin layer on a surface side away from said member for adhesion, the content of the inorganic filler in the photosensitive resin layer on the side to be adhered to the member for adhesion is less than 38% by volume of a total amount of nonvolatile content, the content of the inorganic filler in the photosensitive resin layer on the side away from the member for adhesion is in a range of from 38% to 60% by volume of the total amount of nonvolatile content, and the inorganic filler in the photosensitive resin layer on the side away from the member for adhesion comprises at least one of Mg and Al.