Abstract:
Disclosed herein is an apparatus for testing switching of a power semiconductor module, including: a power semiconductor module including a plurality of power semiconductor devices corresponding to a plurality of phases to test a switching operation of a corresponding power semiconductor device; a power supply unit supplying power to the power semiconductor module; a relay switching unit including a plurality of relay switch devices that connects or disconnects between the power semiconductor module and the power supply unit according to a relay control signal; and a control unit controlling the relay switching unit to test on/off characteristics of at least one of the plurality of power semiconductor devices individually or simultaneously, By this configuration, the on/off operations of the plurality of power semiconductor devices are tested individually or simultaneously by the control of the plurality of relay switch devices, thereby improving the user convenience and reducing the test time.
Abstract:
Disclosed herein is a method of manufacturing a printed circuit board, including; forming an electronic component including an electrode that is formed on at least one side of a body; forming terminals on an upper portion of the electrode and an upper portion of the body; providing a substrate in which a cavity is formed; mounting the electronic component formed with the terminals in the cavity of the substrate; and forming a buildup layer on an upper portion of the substrate and an upper portion of the electronic component.
Abstract:
There are provided an apparatus for testing a semiconductor device and a method for testing a semiconductor device. The apparatus for testing a semiconductor device includes: a temperature detection unit detecting a temperature of a semiconductor device to generate a detected temperature; a controller comparing the detected temperature with a preset control temperature to generate a comparison result, and determining whether to cool the semiconductor device according to the comparison result; and a cooling unit cooling the semiconductor device according to a control of the controller, wherein the controller resets the control temperature, when the detected temperature is outside of a range of an operational temperature of the semiconductor device.
Abstract:
Disclosed herein is an electronic component package including: a connection member provided on at least one surface of a substrate; an active element coupled to the substrate by the connection member; a molding part covering an exposed surface of the active element; and an additional layer formed on an exposed surface of the molding part to decrease a warpage phenomenon. In the electronic component package, the warpage phenomenon may be decreased as compared with the related art.
Abstract:
Disclosed herein are a printed circuit board and a method of manufacturing the same. In detail, according to a preferred embodiment of the present invention, the printed circuit board includes: an insulating layer; and a metal layer formed on the insulating layer, wherein in the metal layer, a ratio occupied by crystal orientations of (110) and (112) is 20 to 80%. By doing so, the preferred embodiment of the present invention provides a printed circuit board including the metal layer having different crystal orientations to minimize factors of hindering electrical characteristics such as electric conductivity and improve isotropy of mechanical properties and a method of manufacturing the printed circuit board.
Abstract:
Disclosed herein is a touch sensor, including: a window; a transparent substrate having a first electrode part formed on one surface thereof; and a first adhesive layer allowing the window and one surface of the transparent substrate to adhere to each other, wherein a first protrusion part is formed on an edge of one surface of the transparent substrate.
Abstract:
Disclosed herein is an apparatus for testing switching of a power semiconductor module, including: a power semiconductor module including a plurality of power semiconductor devices corresponding to a plurality of phases to test a switching operation of a corresponding power semiconductor device; a power supply unit supplying power to the power semiconductor module; a relay switching unit including a plurality of relay switch devices that connects or disconnects between the power semiconductor module and the power supply unit according to a relay control signal; and a control unit controlling the relay switching unit to test on/off characteristics of at least one of the plurality of power semiconductor devices individually or simultaneously, By this configuration, the on/off operations of the plurality of power semiconductor devices are tested individually or simultaneously by the control of the plurality of relay switch devices, thereby improving the user convenience and reducing the test time.
Abstract:
An insulating composition including a graphene oxide and an insulating material including the same; and a polar solvent having a solvent polarity index (P) of greater than 5.5, a substrate including an insulating layer using the same, and a method for manufacturing the substrate. It is possible to provide an insulating composition including a specific solvent that can secure dispersibility of the graphene oxide while including the graphene oxide having excellent insulating and mechanical properties as an insulating material. Further, it is possible to provide a substrate including a fine insulating layer pattern as well as a bulk insulating layer pattern by using the insulating composition to overcome an aggregation problem in a conventional inkjet printing method.
Abstract:
A measurement device of a degree of cure, and more particularly, a measurement device of a degree of cure capable of using while being portable in a production line. The measurement device of the degree of cure includes: a light source; a light transmission and reflection mirror passing through a light irradiated from the light source and reflecting scattered light reflected and returned from a sample; a light splitting mirror transmitting and reflecting the scattered light so as to detect intensity of the scattered light reflected by the light transmission and reflection mirror; a detector detecting the intensity of the scattered light transmitted and reflected by the light splitting mirror; and a data obtaining unit collecting data of the intensity of the scattered light detected by the detector.
Abstract:
Disclosed herein is a printed circuit board, including: a base substrate on which a connection pad is formed; a dam spaced apart from one side of the connection pad; and a protective layer formed to surround the dam.