摘要:
The printed circuit board is manufactured using a simple process of forming a bump on a first metal layer using fireable paste containing carbon nanotubes, firing the first metal layer including the bump, forming an insulating layer and a second metal layer on the first metal layer, and patterning the first and second metal layers, thus specific resistance of the resulting printed circuit board is decreased, and electrical conductivity and cooling performance are improved.
摘要:
A method of manufacturing a cooling fin and package substrate that includes preparing a mold, which has a support base and a resin layer formed on the support base and including on a side thereof a groove, which is configured to form a cooling fin; printing fireable paste containing a carbon component on a side of the mold that has the groove configured to form a cooling fin; removing the support base to leave a cooling object; and firing the cooling object.
摘要:
A printed circuit board and a method of manufacturing the printed circuit board, in which the printed circuit board includes an insulating layer, a circuit layer embedded in the insulating layer and having a connection pad that is embedded in the insulating layer such that one side of the connection pad is flush with a surface of the insulating layer, and insulating materials configured to protect the circuit layer from an external environment and having an opening through which the connection pad is exposed. The printed circuit board is made slim, and reliability and the degree of design freedom are increased.
摘要:
A method of manufacturing a multilayered circuit board, including: providing a double-sided copper clad laminate including via holes formed therethrough and openings for forming circuit patterns, formed by patterning copper foil formed on one side thereof; filling the via holes and the openings with conductive paste; removing the copper foil from the double-sided copper clad laminate to form a first circuit layer including circuit patterns on one side thereof and to form a second circuit layer including connecting pads for attaching solder balls thereto on the other side thereof; forming a build-up layer on the first circuit layer, the build-up layer including a plurality of insulating layers and a plurality of circuit layers; and forming a solder resist layer on an outermost layer of the build-up layer.
摘要:
Disclosed herein is a multilayered printed circuit board, including: a build-up layer including a plurality of insulating layers and a plurality of circuit layers; an insulating resin layer, including bumps, formed on the outermost circuit layer of one side of the build-up layer; and a solder resist layer formed on the outermost layer of the other side of the build-up layer. The multilayered printed circuit board is manufactured by sequentially placing a build-up layer and a solder resist layer on one side of an insulating resin layer, the other side of which is provided with bumps. The present invention is advantageous in that the thickness of the multilayered printed circuit board is decreased, the production processes thereof is simplified, and the production efficiency is increased.
摘要:
Disclosed herein is a circuit layer including CNTs including an electroless copper plating layer formed on an insulating layer, and a CNT layer deposited on the electroless copper plating layer, thus the circuit layer has excellent electrical properties.
摘要:
Disclosed herein is a multilayered circuit board, including: a multilayered printed circuit board manufactured using the method includes an insulating resin layer having via holes, on one side of which a first circuit layer including circuit patterns is formed, and on the other side of which a second circuit layer, including connecting pads, is formed, the pads protruding over the via holes; a build-up layer formed on the first circuit layer, the build-up layer including a plurality of insulating layers and a plurality of circuit layers; and a solder resist layer formed on an outermost layer of the build-up layer.
摘要:
A method of manufacturing a printed circuit board, including: applying a conductive paste including carbon nanotubes and a photosensitive binder on a bump-forming area of a circuit substrate having a circuit layer for transferring electrical signals; and patterning the conductive paste, thus forming bumps.
摘要:
A method of manufacturing a printed circuit board, including: applying a conductive paste including carbon nanotubes and a photosensitive binder on a bump-forming area of a circuit substrate having a circuit layer for transferring electrical signals; and patterning the conductive paste, thus forming bumps.
摘要:
A printed circuit board and a method of manufacturing the printed circuit board, in which the printed circuit board includes an insulating layer, a circuit layer embedded in the insulating layer and having a connection pad that is embedded in the insulating layer such that one side of the connection pad is flush with a surface of the insulating layer, and insulating materials configured to protect the circuit layer from an external environment and having an opening through which the connection pad is exposed. The manufacturing process includes a step of pressing the circuit layer and the insulating material into the insulating layer to form a level surface while leaving the connection pads flush at the surface. The method makes the printed circuit board slim, and increases reliability and the degree of design freedom.