Abstract:
A method of manufacturing a multi-layer PCB having external contact pads formed on one side can include: forming an outermost insulation layer, in which openings are formed corresponding with the external contact pads; forming a mask, in which openings are formed corresponding with the external contact pad and with a circuit pattern, on the outermost insulation layer; forming the external contact pads and the circuit pattern in the openings of the outermost insulation layer and the openings of the mask; removing the mask; forming a build-up layer by stacking layers over the outermost insulation layer such that the external contact pads and the circuit pattern are covered; forming a first solder resist layer on the build-up layer; and forming a second solder resist layer on an opposite side of the outermost insulation layer; and forming openings in the second solder resist layer such that the external contact pads are exposed.
Abstract:
A method of manufacturing a multi-layer board is disclosed. The method may include forming a detachable separation layer over a support; forming a first solder resist layer over the separation layer; stacking a metal foil over the first solder resist layer; forming a circuit pattern over the metal foil; forming an insulation part over the first solder resist layer such that the circuit pattern is covered; forming a second solder resist layer over the insulation part; and separating a circuit stack unit, which includes the first solder resist layer, the metal foil, the circuit pattern, the insulation part, and the second solder resist layer, from the support by disconnecting the separation layer and the support. This method uses a simple process to reduce manufacture costs and shorten manufacture times.
Abstract:
A method for manufacturing a printed circuit board having an embedded component is disclosed. The method includes: forming at least one contact bump and at least one electrode bump on one side of a base substrate; mounting the component such that the electrode bump is in correspondence with a contact terminal of the component; stacking an insulation layer, in which an opening is formed in correspondence to the component, on the one side of the base substrate, such that the contact bump penetrates the insulation layer; filling a filler in the opening; and stacking a metal layer on the insulation layer. Using the method, the reliability of circuit connections between the component and the circuit patterns can be improved, and the manufacturing process can be reduced in embedding the component in the printed circuit board.
Abstract:
A switching mechanism of an air circuit breaker that allows the overall size of the air circuit breaker to be minimal by making the width of the switching mechanism relatively small. The switching mechanism of the air circuit breaker includes both side plates, a main shaft, a main shaft lever, a first link, a closing spring unit, a charging cam, a rotational shaft of the charging cam, a third link, a driving lever, a spring support pin and an end portion supported by the spring support pin, and a third link elastic bias spring having an end portion supported by the spring support pin and an operation portion for providing elastic force onto one surface of the third link to bias the third link to be rotated in one direction. A third link elastic bias spring directly provides the elastic force onto the third link in order to minimize the distance between a pair of driving levers and thus minimize the width of the switching mechanism.
Abstract:
A location awareness system using RFID and a wireless communication apparatus for the location awareness are provided. The location awareness system includes a RFID tag, a wireless communication apparatus for location awareness, more than three anchors, a coordinator, and a server. The wireless communication apparatus identifies the target object with the RFID attached through communicating with the RFID tag. The anchors receive information about the identified target object and measuring a distance by communication with the wireless communication apparatus using a predetermined wireless communication scheme. The coordinator collects the measure distance and the information from each of the anchors. The server calculates a location of the target object by receiving information about the measured distances and the target objects from the coordinator and calculating the location of the wireless communication apparatus using the received information.
Abstract:
A manufacturing method for a printed circuit board having a fine pattern is disclosed, comprising: providing a carrier plate; coating the carrier plate with a photosensitive material; forming a first circuit pattern on the photosensitive material; forming a first circuit layer by drying a conductive paste printed into a space between the photosensitive materials where the first circuit pattern is formed; depositing an insulation layer on the first circuit layer; processing via holes penetrating the insulation layer; coating the insulation layer with the photosensitive material and then forming a second circuit pattern in the photosensitive material; forming a second circuit layer and filling the via holes by drying the conductive paste printed into a space between the photosensitive materials, where the second circuit pattern is formed, and the via holes; and removing the carrier plate.
Abstract:
An exemplary embodiment of the present invention relates to a conductive structure body that comprises a darkening pattern layer having AlOxNy, and a method for manufacturing the same. The conductive structure body according to the exemplary embodiment of the present invention may prevent reflection by a conductive pattern layer without affecting conductivity of the conductive pattern layer, and improve a concealing property of the conductive pattern layer by improving absorbance. Accordingly, a display panel having improved visibility may be developed by using the conductive structure body according to the exemplary embodiment of the present invention.
Abstract translation:本发明的示例性实施例涉及一种导电结构体,其包括具有AlO x N y的变暗图案层及其制造方法。 根据本发明的示例性实施例的导电结构体可以防止导电图案层的反射而不影响导电图案层的导电性,并且通过改善吸光度来改善导电图案层的隐蔽性。 因此,可以通过使用根据本发明的示例性实施例的导电结构体来开发具有改善的可视性的显示面板。
Abstract:
A method for transmitting a transport block includes segmenting the transport block into code blocks corresponding in number to a multiple of the number of layers to be used for the transmission of the transport block, attaching a Cyclic Redundancy Check (CRC) to the segmented code blocks, sequentially mapping the code blocks to which the CRC has been attached to at least one layer according to a predetermined mapping rule, and transmitting the code blocks.
Abstract:
Provided are a non-volatile memory device and a cross-point memory array including the same which have a diode characteristic enabling the non-volatile memory device and the cross-point memory array including the same to operate in a simple structure, without requiring a switching device separately formed so as to embody a high density non-volatile memory device. The non-volatile memory device includes a first electrode; a diode-storage node formed on the first electrode; and a second electrode formed on the diode-storage node.