Abstract: A method of manufacturing a printed circuit board includes: forming first and second resist films, respectively having first and second openings exposing a first metal layer disposed on one surface of an insulating layer; forming a second metal layer on the first metal layer, exposed through the first and second openings, to fill at least a portion of each of the first and second openings; and removing the first and second resist films. The first and second openings have different widths in a cross-section.

Abstract: A method of manufacturing a printed circuit board includes: forming a resist layer; exposing first areas of the resist layer spaced apart from each other; after exposing the first areas, exposing second areas of the resist layer, the second areas being spaces between the first areas; forming first and second openings spaced apart from each other in the first and second areas by developing the resist layer; and forming a plurality of conductor patterns by filling the first and second openings with conductors.

Abstract: A printed circuit board includes a first insulating layer, a metal layer disposed on one surface of the first insulating layer, a first circuit layer disposed inside the first insulating layer and having one surface exposed to the one surface of the first insulating layer so as to be in contact with one surface of the metal layer, a second circuit layer in contact with the other surface of the metal layer, and a second insulating layer disposed on the one surface of the first insulating layer to cover the metal layer and the second circuit layer. The first and second circuit layers respectively include a metal different from the metal layer.

Abstract: The present invention relates to a transparent member for an automotive interior part. In one embodiment, the transparent member for the automotive interior part includes: a light source; an optical pattern layer formed over the light source; and a first light-transmitting skin layer formed on the optical pattern layer and including about 1 part by weight to about 25 parts of a first inorganic filler dispersed in 100 parts by weight of a first transparent resin matrix, wherein the first inorganic filler includes spherical calcium carbonate (CaCO3).

Abstract: The present invention relates to a transparent member for an automotive interior part. In one embodiment, the transparent member for the automotive interior part includes: a light source; an optical pattern layer formed over the light source; and a first light-transmitting skin layer formed on the optical pattern layer and including about 1 part by weight to about 25 parts of a first inorganic filler dispersed in 100 parts by weight of a first transparent resin matrix, wherein the first inorganic filler includes spherical calcium carbonate (CaCO3).