Patent classifications
H05K1/0216
Ground member and shielded printed wiring board
Provided is a ground member that can prevent damage to interlayer adhesion between a conductive layer and an adhesive layer of the ground member due to heating in producing a shielded printed wiring board or in mounting an electronic component on a shielded printed wiring board. The ground member of the present invention includes: a conductive layer; and an adhesive layer stacked on the conductive layer, the adhesive layer containing a binder component and hard particles, the adhesive layer having a thickness of 5 to 30 μm.
CURRENT SENSOR ASSEMBLY
A current sensor assembly includes a housing; a plurality of shields which are accommodated inside the housing and open toward the top of the housing; a plurality of bus bars to which three-phase current is applied and which are arranged spaced apart from each other so as to go past the plurality of shields, respectively; and a current sensor unit which includes a printed circuit board and a plurality of current sensors disposed on the printed circuit board to measure the current applied to the bus bars. The shields, the bus bars, and the current sensor unit are configured to be accommodated inside the housing, and the current sensors are spaced apart from the bus bars and disposed in the inner spaces of the shields.
Electronic device including heat dissipation structure
An electronic device according to various embodiments may include: a circuit board; an electrical element disposed on an upper surface of the circuit board; a shield can surrounding at least a portion of the electrical element and having a first opening provided through a portion of the shield can facing the electrical element; a shielding sheet including a shielding layer disposed on at least a portion of the shield can and a support layer disposed on an upper surface of the shielding layer and including a second opening corresponding to the first opening; and a first heat transfer member comprising a heat dissipating material having at least a portion disposed inside the second opening and at least one surface in contact with the shielding layer.
Electronic apparatus capable of reducing electromagnetic field noise
An electronic apparatus includes a supporting member, a movable member supported by the supporting member movably with respect to the supporting member, a controller configured to control a movement of the movable member, a first flexible printed circuit board configured to electrically connect the movable member and the controller, and a first radio wave absorber having a sheet shape that overlays the first flexible printed circuit board and that is partially fixed to the first flexible printed circuit board.
Electronic device package and manufacturing method thereof
An electronic device package is disclosed. The electronic device package includes a board on which an electronic device is mounted, a molded portion formed to cover the electronic device on the board, and a conductive layer disposed on a surface of the molded portion and extended in a trench formed on the board.
ELECTRONIC DEVICE INCLUDING SHEILDING STRUCTURE
The disclosure relates to an electronic device including: a circuit board; a first component disposed on the circuit board; a shield can disposed to surround at least a part of the first component and including an opening; and a nanofiber film disposed on the shield can to cover the opening, wherein the nanofiber film includes a first layer, a second layer, and a third layer sequentially laminated in a first direction, the first layer or the third layer having a lower electrical resistance value than an electrical resistance value of the second layer in a second direction different from the first direction, and the second layer has a lower electrical resistance value than an electrical resistance value of the first layer or the third layer in the first direction.
SHIELD FOR ELECTRONIC COMPONENTS
Technologies are described for shielding electronic components. In one embodiment, a conductive gasket includes a gasket body. A conductive shield has a plurality of projections extending therefrom sufficient to deform the gasket body to couple the conductive shield and the conductive gasket together. The projections can be pointed teeth designed for penetrating the conductive gasket so as to electrically and mechanically couple the conductive shield to the conductive gasket. The conductive gasket can be stacked onto the conductive shield to form a sidewall, which can be mounted on a PCB. A conductive cover can then be placed on the conductive gasket to create a cavity in which electronic components can be positioned.
MOUNTING BOARD
A mounting board includes: a first electronic component that includes first solder balls, one of the first solder balls being surrounded by at least three of the first solder balls; a first capacitor that includes a first power supply terminal and a first ground terminal; a second electronic component that includes second solder balls, each of the second solder balls not being surrounded by at least three of the second solder balls; and a second capacitor that includes a second power supply terminal and a second ground terminal. A distance from the first ground terminal to the first electronic component is less than or equal to a distance from the first power supply terminal to the first electronic component. A distance from the second power supply terminal to the second electronic component is less than or equal to a distance from the second ground terminal to the second electronic component.
SHIELD STRUCTURE IN ELECTRONIC DEVICE AND OPERATION METHOD THEREOF
Various embodiments of the present disclosure relate to a package structure capable of allowing a shield used for noise attenuation to be used for other purposes, in an electronic device in which components are arranged at high density, and an operation method for preventing/reducing noise radiation or detecting in advance defects in a manufacturing process using the same. For this, an electronic device may include: a printed circuit board (PCB), and a package disposed on the printed circuit board. The package may include: a ground pad and at least one shield pad connected to the printed circuit board, a laminated structure comprising a plurality of laminated ground layers electrically connected to the ground pad by at least one via hole, at least one electronic component disposed on an uppermost surface of the plurality of laminated ground layers, a shield covering the at least one electronic component, wherein the at least one component is not exposed to the outside, and at least one switch device comprising a switch including a first terminal electrically connected to the shield through a first conductor wiring, a second terminal electrically connected to one of the plurality of ground layers through a second conductor wiring, and a third terminal electrically connected to the shield pad through a third conductor wiring and disposed on the uppermost surface and configured to selectively connect the first terminal to the second terminal or the third terminal wherein the shield is connected to one of the one ground layer or the shield pad.
Method for electromagnetic interference control, electronic device, and storage medium
A method for electromagnetic interference control, an electronic device, and a storage medium are provided. The method is for an electronic device. The electronic device includes a display screen and an under-screen fingerprint assembly arranged under a preset region of the display screen. The method includes the following. Detect electromagnetic interference between the under-screen fingerprint assembly and the display screen in response to detecting that the under-screen fingerprint assembly is activated, where the preset region of the display screen is in a lighted state. Frequency-hopping is performed for a mobile industry processor interface (MIPI) of the display screen in response to the detected electromagnetic interference.