Abstract: The present invention provides a multilayer circuit board and a method for manufacturing the same for improving a bowing problem that occurs when manufacturing the multilayer circuit board. A multilayer circuit board according to the present invention is a board having a patterned layer that functions as a circuit a base layer, and includes: a second pattern layer formed on one side of the base layer; a first pattern layer formed on the second pattern layer; and an interlayer insulating layer formed between the first pattern layer and the second pattern layer, the interlayer insulating layer being partially formed on the second pattern layer so as to correspond to a region where the first pattern layer is formed.

Abstract: A substrate package in which chip-on-films (COFs) are attached to both surfaces of a display panel and a display device including the substrate package are provided. The display device includes: a display panel displaying data on a screen; and a plurality of first packages and a plurality of second packages where chips for driving the display panel are installed, the first packages and the second packages being attached to an end portion of the display panel, wherein the first packages and the second packages are attached through different surfaces of the display panel.

Abstract: A circuit board including a contact terminal on a side thereof, a method of fabricating the circuit board, and an electronic device including the circuit board are provided. The circuit board includes: a base layer; a wiring layer formed on the base layer; and a terminal section formed at a level corresponding to the wiring layer, on a first surface and a side surface of one end portion of the base layer.

Abstract: Provided is a coil substrate having an asymmetric structure, in which the area of a coil pattern included in a first region is expanded relative to the area of a coil pattern included in a second region with respect to a virtual axis, and an electronic apparatus having the same. The coil substrate comprises a base layer; and a coil pattern spirally wound on the base layer, wherein an upper portion of the base layer is divided into a first region and a second region based on a void region formed inside the coil pattern, wherein an area of the coil pattern formed in the second region is larger than an area of the coil pattern formed in the first region.

Abstract: A flexible circuit board is provided. The flexible circuit board includes a base film with an outer lead region defined on either one surface or the other surface and an outer lead provided in the outer lead region and connected to an electronic device, in which the outer lead includes a plurality of first outer leads and a plurality of second outer leads formed to be spaced apart from each other so as to face each other in the outer lead region, and in which the number of the plurality of first outer leads is greater than the number of the plurality of second outer leads.

Abstract: Provided is a coil apparatus having a plurality of coil patterns formed on one surface. The coil apparatus comprises at least one coil substrate, wherein the coil substrate comprises a base layer, and a coil pattern formed on the base layer and including a pattern portion, a via portion part or an external electrode portion, and a coil substrate, wherein the coil substrate is wound in a multi-helical structure in response to a plurality of coil patterns being provided.

Abstract: The present invention comprises: a base film on which a first element mounting part and a second element mounting part are defined; wiring patterns formed by extending from each of the first element mounting part and the second element mounting part on the base film, wherein the wiring patterns include a first terminal part in the first element mounting part and a second terminal part in the second element mounting part; and a first plating layer formed on the second terminal part, wherein the first plating layer includes a pure metal plating layer, and the first plating layer is not formed on the first terminal part.

Abstract: Provided are a flexible circuit board for forming a protective layer on an inner lead region, a manufacturing method therefor, and a package having the flexible printed circuit board. The flexible circuit board comprises: a base layer; a wiring layer which includes a plurality of electrode lines each having an inner lead and an outer lead respectively provided on both sides thereof and which is formed on at least one surface of the base layer; a first protective layer formed on the wiring layer so as to expose the inner lead and the outer lead of the electrode line; and a second protective layer formed in an inner lead region that is formed by being encompassed by the first protective layer.

Abstract: Provided are a multilayer board and a method for manufacturing same, in which a different kind of metal layer is formed between an upper metal layer and an interlayer insulating layer, the different kind of metal layer being formed only in a wiring area without being formed in a via area. The multilayer board comprises: a substrate layer; a plurality of first metal layers sequentially stacked on the substrate layer; an interlayer insulating layer formed between two different first metal layers, having a first via hole, and electrically connecting the two different first metal layers through a third metal layer formed in the first via hole; and a second metal layer formed between the upper layer of the two different first metal layers and the interlayer insulating layer.

Abstract: Disclosed herein are a circuit board and a method of fabricating the same. The circuit board includes: a base substrate having a device mount area defined thereon; a first wiring pattern formed on a first surface of the base substrate; a dummy pattern formed on the base substrate, wherein at least a part of the device mount area is filled with the dummy pattern; a first protective layer covering the first wiring pattern and the dummy pattern; and a lead pattern formed on the first protective layer, wherein the lead pattern is extended to the device mount area.

Abstract: A coil device capable of minimizing defects and increasing a thickness of a conductor pattern is provided. The coil device includes: a base substrate; a seed pattern formed on the base substrate and including a seed region and a lead-in wiring region; a first conductive pattern formed on the seed region; a second conductive pattern formed on at least a portion of the first conductive pattern; and a protective layer formed to contact at least one or more of the base substrate, the seed pattern, the first conductive pattern, and the second conductive pattern, in which the seed pattern of the lead-in wiring region extends to a cut line.

Abstract: The present invention provides a multilayer circuit board and a method for manufacturing the same for improving a bowing problem that occurs when manufacturing the multilayer circuit board. A multilayer circuit board according to the present invention is a board having a patterned layer that functions as a circuit a base layer, and includes: a second pattern layer formed on one side of the base layer; a first pattern layer formed on the second pattern layer; and an interlayer insulating layer formed between the first pattern layer and the second pattern layer, the interlayer insulating layer being partially formed on the second pattern layer so as to correspond to a region where the first pattern layer is formed.

Abstract: A flexible circuit board is provided. The flexible circuit board includes a base film with an outer lead region defined on either one surface or the other surface and an outer lead provided in the outer lead region and connected to an electronic device, in which the outer lead includes a plurality of first outer leads and a plurality of second outer leads formed to be spaced apart from each other so as to face each other in the outer lead region, and in which the number of the plurality of first outer leads is greater than the number of the plurality of second outer leads.

Abstract: Disclosed herein are a circuit board and a method of fabricating the same. The circuit board includes: a base substrate having a device mount area defined thereon; a first wiring pattern formed on a first surface of the base substrate; a dummy pattern formed on the base substrate, wherein at least a part of the device mount area is filled with the dummy pattern; a first protective layer covering the first wiring pattern and the dummy pattern; and a lead pattern formed on the first protective layer, wherein the lead pattern is extended to the device mount area.

Abstract: The present invention comprises: a base film on which a first element mounting part and a second element mounting part are defined; wiring patterns formed by extending from each of the first element mounting part and the second element mounting part on the base film, wherein the wiring patterns include a first terminal part in the first element mounting part and a second terminal part in the second element mounting part; and a first plating layer formed on the second terminal part, wherein the first plating layer includes a pure metal plating layer, and the first plating layer is not formed on the first terminal part.