摘要:
An apparatus for manufacturing a printed circuit board that uses conductive bumps to interconnect layers includes: a conveyor unit, which is configured to transport a board that has the conductive bumps formed on one side; an upper roller and a lower roller, which press the board and an insulator together; an elastic coating layer, formed on a surface of the upper roller; and a cleaning device, which removes impurities from a surface of the elastic coating layer. The apparatus does not require a separate device for performing a cushioning function and a detaching function between the bumps and the rollers, and the rollers can be kept clean using a cleaning device.
摘要:
An apparatus and a method for manufacturing a printed circuit board are disclosed. The apparatus for manufacturing a printed circuit board that uses conductive bumps to interconnect layers includes: a conveyor unit, which is configured to transport a board that has the conductive bumps formed on one side; an upper roller and a lower roller, which press the board and an insulator together; an elastic coating layer, formed on a surface of the upper roller; and a cleaning device, which removes impurities from a surface of the elastic coating layer. The apparatus does not require a separate device for performing a cushioning function and a detaching function between the bumps and the rollers, and the rollers can be kept clean using a cleaning device.
摘要:
The invention provides a conductive paste including a carbon nanotube and a printed circuit board using the same. The invention provides the conductive paste which exhibits an excellent electrical conductivity and allows the implementation of the X-Y interconnection and simultaneously the Z-interconnection without loosing the carbon nanotube's own original characteristics.
摘要:
A heat-releasing PCB and a method of manufacturing the PCB are disclosed. The method of manufacturing the heat-releasing printed circuit board includes: preparing a copper clad laminate, which has at least one copper layer stacked on at least one insulation layer; forming a coating layer, made from a paste having carbon nanotubes as a major constituent, on a surface of the copper layer; and forming a circuit pattern by removing portions of the coating layer and portions of the copper layer.
摘要:
A method of interconnecting layers of a printed circuit board is disclosed. The method includes: forming at least one bump on a first metal layer using a conductive paste containing carbon nanotubes, stacking an insulation layer on the first metal layer such that the bumps penetrate the insulation layer, and stacking a second metal layer on the insulation layer such that the second metal layer is electrically connected with the first metal layer by the bump.
摘要:
A printed circuit board having an embedded cavity capacitor is disclosed. According to an embodiment of the present invention, the printed circuit board having the embedded cavity capacitor, the printed circuit board can include two conductive layers to be used as a power layer and a ground layer, respectively; and a first dielectric layer, placed between the two conductive layers, wherein at least one cavity capacitor is arranged in a noise-transferable path between a noise source and a noise prevented destination which are placed on the printed circuit board, the cavity capacitor being formed to allow a second dielectric layer to have a lower stepped region than the first dielectric layer, the second dielectric layer using the two conductive layers as a first electrode and a second electrode, respectively, and placed between the first electrode and the second electrode.
摘要:
An EMI noise reduction board using an electromagnetic bandgap structure is disclosed. In the EMI noise reduction board according to an embodiment of the present invention, an electromagnetic bandgap structure having band stop frequency properties can be inserted into an inner portion of the board so as to shield an EMI noise, in which the portion corresponds to an edge of the board and in which the EMI noise is conducted from the inside to the edge of the board and radiates to the outside of the board.
摘要:
An optical wiring board and a method of manufacturing the optical wiring board are disclosed. The method of manufacturing an optical wiring board may include forming a lower cladding over an insulating layer; forming a side cladding, which has an indentation corresponding with the core, over the lower cladding; filling a core material in the indentation; and forming an upper cladding such that the core material is covered. Embodiments of the invention can be utilized to readily control the thickness of the core.
摘要:
A method of fabricating a cavity capacitor embedded in a printed circuit board including two conductive layers to be used as a power layer and a ground layer, respectively, and a first dielectric layer, placed between the two conductive layers, the method including: removing an upper conductive layer and the first dielectric layer excluding a lower conductive layer of the two conductive layers to allow a cavity to be formed between the two conductive layers, the lower conductive layer being supposed to be used as any one of electrodes of the cavity capacitor; stacking a dielectric material on the cavity to allow a second dielectric layer having a lower stepped portion than the first dielectric layer to be formed in the cavity; and stacking a conductive material on an upper part of the second dielectric layer and side parts of the cavity to allow the upper conductive layer to be used as the other electrode of the cavity capacitor.
摘要:
An optical wiring board having a core, the optical wiring board including: a lower cladding; a side cladding formed over the lower cladding and having an indentation formed therein, the indentation being in correspondence with the core; a core embedded in the indentation; and an upper cladding covering the core, wherein a height of the core is different from a depth of the indentation