摘要:
A printed circuit board having embedded components and a method for the manufacturing of the printed circuit board are disclosed. The printed circuit board includes: an intermediary insulation layer; a first core board, in which a first component having at least one electrode formed on one side is embedded, stacked on one side of the intermediary insulation layer; a first insulation layer stacked on the first core board such that the first component is covered; a second core board, in which a second component having at least one electrode formed on one side is embedded, stacked on the other side of the intermediary insulation layer; a second insulation layer stacked on the second core board such that the second component is covered; and a first via, which penetrates the first core board and the second core board. The use of this printed circuit board allows highly integrated designs.
摘要:
A component-embedded PCB and a method of manufacturing the PCB are disclosed. Using a method that includes perforating a cavity in a core substrate; inserting a component in the cavity; stacking a film layer over the core substrate; forming at least one post by selectively leaving behind the film layer in correspondence to a position of at least one electrode of the component; covering an insulation layer over the core substrate such that the post penetrates the insulation layer to be exposed at a surface of the insulation layer; and forming at least one via hole by removing the post, can provide increased precision and finer pitch. Also, since laser is not used when processing the vias, damage to the component that may occur due to the laser is prevented. Furthermore, tolerance defects may be decreased, as well as defects caused by residue left after processing.
摘要:
A component-embedded PCB and a method of manufacturing the PCB are disclosed. Using a method that includes perforating a cavity in a core substrate; inserting a component in the cavity; stacking a film layer over the core substrate; forming at least one post by selectively leaving behind the film layer in correspondence to a position of at least one electrode of the component; covering an insulation layer over the core substrate such that the post penetrates the insulation layer to be exposed at a surface of the insulation layer; and forming at least one via hole by removing the post, can provide increased precision and finer pitch. Also, since laser is not used when processing the vias, damage to the component that may occur due to the laser is prevented. Furthermore, tolerance defects may be decreased, as well as defects caused by residue left after processing.
摘要:
An insulator and a manufacturing method of an electronic component embedded printed circuit board using the insulator are disclosed. The method includes providing a core board having a circuit pattern formed on a surface thereof, in which the core board is penetrated by a cavity, adhering an adhesive layer covering the cavity to a lower surface of the core board, disposing an electronic component on an upper surface of the adhesive layer, in which the upper surface corresponds to the cavity, and stacking an insulator on an upper surface of the core board so as to fill the cavity, in which the insulator has an upper resin layer and a lower resin layer formed on an upper surface and a lower surface of a reinforcing material, respectively. The insulator has an asymmetric structure in which the lower resin layer is thicker than the upper resin layer.
摘要:
An electro device embedded printed circuit board and a manufacturing method thereof are disclosed. In accordance with an embodiment of the present invention, a printed circuit board embedded with an electro device, in which a pair of electrodes are formed on either end, includes: a core substrate in which a first cavity is formed; a first passive device embedded in the first cavity and being thinner than the core substrate; and a second passive device stacked on an upper side of the first passive device such that the second passive device is embedded in the first cavity. The first passive device and the second passive device are stacked to cross each other.
摘要:
An electro device embedded printed circuit board and a manufacturing method thereof are disclosed. In accordance with an embodiment of the present invention, a printed circuit board embedded with an electro device, in which a pair of electrodes are formed on either end, includes: a core substrate in which a first cavity is formed; a first passive device embedded in the first cavity and being thinner than the core substrate; and a second passive device stacked on an upper side of the first passive device such that the second passive device is embedded in the first cavity. The first passive device and the second passive device are stacked to cross each other.
摘要:
Disclosed is a method of fabricating an automotive seat cover leather. The method includes a preparing process, a tanning process, a neutralizing process, a retanning process, an elastic material adding process, a dyeing/fatliquoring process, and a surface fixing process. After the leather has gone through the tanning process and neutralizing process, the retanning process adds a tanning agent to the leather. The elastic material adding process adds a silicon-based elastic material to induce elasticity in the retanned leather. The dyeing/fatliquoring process adds a dye to the leather in which the elastic material has been added and adds an anion fatliquoring agent to the leather to provide flexibility. The surface fixing process fixes the elastic material, dye, and fatliquoring agent on and in the leather.
摘要:
The present disclosure relates to an apparatus for controlling a virtual machine in a device. The apparatus comprises a virtualization requesting part and a controlling part. The virtualization requesting part is configured to transmit a first instruction word for controlling the virtual machine to an independent virtualization apparatus. The controlling part is configured to execute an operation corresponding to a second instruction word received from the virtualization apparatus.
摘要:
Provided are an air circuit breaker capable of allowing a closing spring to be automatically discharged at a pulled-out position in a pull-out type air circuit breaker and an automatic discharging apparatus for the closing spring in the air circuit breaker, the automatic discharging apparatus for the closing spring comprising a cam shaft rotation preventing unit installed on a cam shaft allowing the closing spring to be charged or discharged and configured to restrict the rotation of the cam shaft by an elastic restoring force of the closing spring, and a unit for releasing the cam shaft rotation preventing unit connected to the cam shaft rotation preventing unit and configured to allow the cam shaft to be rotated by the elastic restoring force of the closing spring according to positions where a main body of the air circuit breaker is pulled out of a cradle.
摘要:
In a method of manufacturing a semiconductor device, a pad including at least one insulating interlayer and at least one conductive wiring may be formed in a pad area of a substrate. At least one wiring may be formed adjacent to the conductive wiring. At least one insulation layer may be formed adjacent to the insulating interlayer. At least one crack preventing structure may be formed in the insulation layer. The crack preventing structure may continuously extend in the insulation layer and portions of the insulation layer may also be continuous. When a semiconductor device includes at least one crack preventing structure disposed adjacent to a pad, a degradation of the semiconductor chip caused by an external impact and/or a stress may be efficiently prevented by the crack preventing structure.