Abstract:
A carrier member for transmitting circuits, which is a component of a coreless printed circuit board having circuit patterns embedded therein, and which can be used to provide a high-density and highly reliable printed circuit board by forming protrusions only on the lower ends of the circuit patterns, a coreless printed circuit board using the carrier member, and methods of manufacturing the carrier member and the coreless printed circuit board.
Abstract:
A method of manufacturing a heat radiation substrate having a metal core, including injection-molding mixed powder of carbon nanotubes and metal in a die to fabricate a metal core having through holes; molding the entire metal core including the through holes with an insulating resin to fabricate a metal core substrate; processing the insulating resin provided in the through holes to form connection holes; and forming a circuit pattern on the metal core substrate in which the connection holes are formed.
Abstract:
A method of manufacturing a printed circuit board having embedded electronic components. With the printed circuit board having embedded electronic components, including a core sheet, a first electronic component mounted on one side of the core sheet, a second electronic component mounted on the other side of the core sheet and overlapping the first electronic component, a first insulation layer stacked on one side of the core sheet and covering the first electronic component, a second insulation layer stacked on the other side of the core sheet and covering the second electronic component, and a circuit pattern formed on the surface of the first insulation layer or the second insulation layer, the density of the printed circuit board having embedded components is improved, as a plurality of electronic components are embedded simultaneously, and when a thin CCL substrate or a metal substrate is used as the core, a metal substrate in particular, the heat-releasing property and mechanical strength are improved, including increased bending strength in a thermal-stress environment, as electronic components are mounted on both sides of the core sheet.
Abstract:
Disclosed herein is a method of manufacturing a heat radiation substrate, including injection-molding mixed powder of carbon nanotubes and metal in a die to fabricate a metal core having through holes; molding the entire metal core including the through holes with an insulating resin to fabricate a metal core substrate; processing the insulating resin provided in the through holes to form connection holes; and forming a circuit pattern on the metal core substrate in which the connection holes are formed.
Abstract:
Disclosed herein is a printed circuit board with embedded capacitors therein which comprises inner via holes filled with a high dielectric polymer capacitor paste composed of a composite of BaTiO3 and an epoxy resin, and a process for manufacturing the printed circuit board.
Abstract:
Disclosed is a stacking structure of semiconductor chips and semiconductor package using it, capable of achieving an electric insulation even if a conductive wire makes contact with a lower surface of an upper semiconductor chip, while reducing a total thickness thereof and preventing damage. The stacking structure has a substrate formed with a plurality of circuit patterns; a first semiconductor chip bonded to an upper surface of the substrate and having a first plane and a second plane formed with a plurality of input/output pads; a spacer bonded to the second plane of the first semiconductor chip; a second semiconductor chip having first and second planes, the second plane being formed with a plurality of input/output pads, the first plane being provided with an insulating member so as to allow the second semiconductor chip to be bonded to the spacer, a first conductive wire for connecting the input/output pads of the first semiconductor chip to the circuit patterns of the substrate; and a second conductive wire for connecting the input/output pads of the second semiconductor chip to the circuit patterns of the substrate.
Abstract:
Disclosed herein are a printed circuit board with embedded capacitors therein and a process for manufacturing the printed circuit board. The embedded capacitors are formed by applying a photosensitive insulating resin to a printed circuit board inner layer, and applying a high dielectric polymer capacitor paste thereto.
Abstract:
A package for a semiconductor device and a method for packaging a semiconductor device are disclosed. The semiconductor package uses a tape which allows for the production of packaged semiconductor devices having different contact patterns. The contact pattern is configured to the required pin contact pattern by varying the number and placement of balls on the bottom of the tape. In one embodiment, the tape includes bonding pads and an array of contact pads. Each bonding pad is connected to one of the contact pads, and an opening is disposed in the tape below each contact pad. A semiconductor device is connected to the tape and is electrically connected to the bonding pads. The semiconductor device is then sealed on the top and sides by a plastic top which attaches to the tape. Balls are then selectively attached to the tape such that they electrically connect to select contact pads so as to form a desired contact pattern. Packages having different contact patterns are easily formed by altering the number and position of balls deposited on the tape. Thus, a single tape may be used for forming packaged semiconductor devices having different contact patterns. Thus, significant cost savings is realized since different tapes need not be fabricated for each different contact pattern.
Abstract:
A method of manufacturing a printed circuit board having embedded electronic components, the method including: mounting a first electronic component on one side of a core sheet and mounting a second electric component on the other side of the core sheet such that the second electronic component overlaps the first electronic component; stacking a first insulation layer on one side of the core sheet such that the first insulation layer covers the first electronic component and stacking a second insulation layer on the other side of the core sheet such that the second insulation layer covers the second electronic component; and forming a circuit pattern on a surface of the first insulation layer or the second insulation layer.
Abstract:
Disclosed is a PCB including an embedded capacitor and a method of fabricating the same. The long embedded capacitor is formed through an insulating layer, making a high capacitance and various capacitance designs possible.