Abstract: A printed circuit board includes a first insulating layer having a first modulus; a second insulating layer disposed on the first insulating layer and having a second modulus; and a cavity penetrating the second insulating layer, wherein the second modulus is greater than the first modulus, and wherein an edge portion of a bottom surface of the cavity is formed of an insulating material.

Abstract: A printed circuit board includes a first substrate portion including a first insulating layer and a first wiring layer; and a second substrate portion disposed on the first substrate portion and including a second insulating layer, a pad disposed on the second insulating layer, and a first via penetrating through the second insulating layer and connecting the first wiring layer and the pad to each other. The first via has a boundary with each of the first wiring layer and the pad, and includes a first metal layer and a second metal layer disposed on different levels.

Abstract: A printed circuit board includes a first insulating layer having a first modulus; a second insulating layer disposed on the first insulating layer and having a second modulus; and a cavity penetrating the second insulating layer, wherein the second modulus is greater than the first modulus, and wherein an edge portion of a bottom surface of the cavity is formed of an insulating material.

Abstract: A printed circuit board includes a first substrate portion including a first insulating layer and a first wiring layer; and a second substrate portion disposed on the first substrate portion and including a second insulating layer, a pad disposed on the second insulating layer, and a first via penetrating through the second insulating layer and connecting the first wiring layer and the pad to each other. The first via has a boundary with each of the first wiring layer and the pad, and includes a first metal layer and a second metal layer disposed on different levels.

Abstract: A printed circuit board includes a first insulating layer having a first modulus; a second insulating layer disposed on the first insulating layer and having a second modulus; and a cavity penetrating the second insulating layer, wherein the second modulus is greater than the first modulus, and wherein an edge portion of a bottom surface of the cavity is formed of an insulating material.

Abstract: Disclosed herein is a printed circuit board including: a base substrate in which a connection pad is formed; a solder resist layer formed on the base substrate and comprising a trench exposing a surface of the base substrate; and a dam formed on the solder resist layer and burying the inside of the trench.

Abstract: Disclosed herein is a printed circuit board, including: a first insulating layer; a second insulating layer formed on the first insulating layer; a first circuit patterns embedded in the first insulating layer; a first via formed on a top of the first circuit pattern and embedded in the first insulating layer; a second circuit pattern formed on the first via and the first insulating layer and embedded in the second insulating layer; a second via formed on the top of the second circuit pattern and embedded in the second insulating layer; and a third circuit pattern formed on the second insulating layer.

Abstract: A printed circuit board and a method for manufacturing the printed circuit board are disclosed. The method for manufacturing a printed circuit board can include forming a circuit pattern over a seed layer that is formed over an insulation layer, pressing the circuit pattern such that the circuit pattern and the seed layer corresponding with the circuit pattern are buried in the insulation layer, and removing the exposed seed layer. This method can prevent undercuts caused by etching in the seeds positioned between the circuit pattern and the insulation layer, and can thereby prevent the circuit pattern from becoming detached. Also, the adhesion between the circuit pattern and the insulation layer can be increased, making it possible to implement a finer circuit pattern over the insulation layer.

Abstract: A printed circuit board and a method for manufacturing the printed circuit board are disclosed. The method for manufacturing a printed circuit board can include forming a circuit pattern over a seed layer that is formed over an insulation layer, pressing the circuit pattern such that the circuit pattern and the seed layer corresponding with the circuit pattern are buried in the insulation layer, and removing the exposed seed layer. This method can prevent undercuts caused by etching in the seeds positioned between the circuit pattern and the insulation layer, and can thereby prevent the circuit pattern from becoming detached. Also, the adhesion between the circuit pattern and the insulation layer can be increased, making it possible to implement a finer circuit pattern over the insulation layer.

Abstract: Disclosed herein is a method of manufacturing a package substrate with a fine circuit pattern using anodic oxidation. By anodizing a metal core which is opened through a masking process, oxidation layers are formed in open areas of the metal core to insulate portions of circuit pattern from each other. Further, by electroplating portions provided between the oxidation layers with copper or filling conductive paste between the oxidation layers using a screen, a package substrate having a fine circuit pattern is achieved.

Abstract: Disclosed is a method of fabricating a multilayer PCB (MLB). More particularly, the present invention relates to a method of fabricating a multilayer PCB, in which plural circuit layers having insulating layers attached thereto and another circuit layer having no insulating layer are formed in a parallel manner according to separate processes, and laminated at one time, unlike fabrication of the multilayer PCB adopting a conventional build-up manner.