| abstract |
【Task】 Provided is a photosensitive insulating paste capable of forming an insulating layer having a low dielectric constant, a high insulating property, and a fine through hole. [Solution] A paste comprising at least silica powder, glass powder and a photosensitive organic component, wherein the glass powder contains a low melting glass having a softening point of 350 to 550 ° C and a high melting glass having a softening point of 600 to 900 ° C. A photosensitive insulating paste characterized by a dielectric constant of melting point glass of 8 or less [selection figure] None |