Patent classifications
H05K9/0031
Shielding film including plurality of layers and electronic device using the same
An electronic device and a shielding film are disclosed herein. The electronic device includes a printed circuit board and at least one electrical component mounted on the printed circuit board. The shielding film is disposed on at least a part of the printed circuit board to block electromagnetic waves generated by the printed circuit board and/or the electronic component. The shielding film includes a plurality of layers, and is attached to at least part of the printed circuit board and contacting an upper side surface of the electronic component, wherein at least part of the shielding film includes a nano-conductive fiber and is electrically connected with a ground part of the printed circuit board through the nano-conductive fiber.
Memory device including a conductive plate with a shielding region
Provided is a memory device. The memory device includes a module board on which one or more semiconductor devices are disposed and a conductive plate mounted on a first side of the module board. The conductive plate includes a shielding region and a non-shielding region. A pad is disposed in the shielding region of the conductive plate.
THERMALLY-CONDUCTIVE ELECTROMAGNETIC INTERFERENCE (EMI) ABSORBERS
Disclosed are exemplary embodiments of thermally-conductive electromagnetic interference (EMI) absorbers. In exemplary embodiments, the thermally-conductive EMI absorber may have a thermal conductivity of at least 6 Watts per meter per Kelvin (W/mK) and an attenuation greater than 15 decibels per centimeter (dB/cm) at a frequency of 10 gigahertz (GHz) or higher.
TAPE MEMBER AND ELECTRONIC APPARATUS INCLUDING SAME
According to various embodiments, an electronic apparatus comprises: a housing including a first plate, a second plate facing in the opposite direction as the first plate, and side members surrounding the space between the second plate and the second plate; a printed circuit board which is disposed within the space and on which at least one electrical component is mounted; a shield can mounted on the printed circuit board and disposed to surround the at least one electrical component; and an insulating tape member attached to the inner surface of the shield can between the shield can and the electrical component. The insulating tape member may include: a first layer including a first material and formed to a first thickness; a second layer laminated on the first layer by means of an adhesive, including a second material, and formed to a second thickness that is the same as or thicker than the first thickness; and an adhesive layer formed on the second layer and for being attached to the shield can. Various other embodiments may also be possible.
CONDUCTIVE SHIELD FOR AN ELECTRONIC DEVICE
An electronic device that includes a circuit board and a shield designed to cover the circuit board is disclosed. The shield can provide radio frequency shielding, thermal energy dissipation, and desense mitigation. The shield provides added structural benefits. For example, the thermal assembly can be made with a non-metal material, such as graphite. Further, the thermally assembly may include multiple graphite layers secured by adhesive layers. Additionally, the shield can rely upon adhesives/tapes to adhere to a metal wall located on a perimeter of the circuit board. In this manner, the shield can provide a compliant body that conforms to the position and location of the metal wall, account for tolerance variations in the metal wall, and thus prevent bending of the metal wall, as opposed to using rigid metal bodies. Based on the adhesive properties, the shield requires no holes for fasteners.
Semiconductor device having an electromagnetic wave absorbing thermal conductive sheet between a semiconductor element and a cooling member
Provided is a semiconductor device having excellent heat transferring performance and electromagnetic wave suppression effect. A semiconductor device 1 comprises: a semiconductor element 30 formed on a substrate 50; a conductive shield can 20 having an opening 21, covering at least a part of the semiconductor element 30, and connected to a ground 60; a cooling member 40 located above the conductive shield can 20; and an electromagnetic wave absorbing thermal conductive sheet 10 formed between the semiconductor element 30 and the cooling member 40 at least through the opening 21 of the conductive shield can 20.
SHIELDING MEMBER AND ELECTRONIC DEVICE INCLUDING THE SAME
An electronic device including a shielding member for performing an electromagnetic interference (EMI) shielding function is provided. The electronic device includes a printed circuit board including a first area in which first electronic components having a first frequency as a driving frequency are mounted, and a second area in which second electronic components having a second frequency as a driving frequency are mounted, a shielding film disposed to cover the first area and the second area of the printed circuit board and attached to a first ground portion of the printed circuit board, and at least one conductive member formed to extend in a direction perpendicular to an extending direction of the printed circuit board. The at least one conductive member includes a first end that contacts the shielding film, and a second end that contacts a second ground portion of the printed circuit board, the second end being disposed between the first area and the second area of the printed circuit board.
ELECTROMAGNETIC INTERFERENCE (EMI) SHIELDING MEMBER AND ELECTRONIC DEVICE INCLUDING THE SAME
A shielding member is provided. The shielding member includes a shielding layer having flexibility, and an insulating layer stacked on the shielding layer. The shielding layer may include a nanofiber layer including nanofibers plated to have electrical conductivity and coated with an adhesive material, and conductive particles disposed in the nanofiber layer.
MEMORY DEVICE INCLUDING A CONDUCTIVE PLATE WITH A SHIELDING REGIOIN
Provided is a memory device. The memory device includes a module board on which one or more semiconductor devices are disposed and a conductive plate mounted on a first side of the module board. The conductive plate includes a shielding region and a non-shielding region. A pad is disposed in the shielding region of the conductive plate.
Electronic component package for electromagnetic interference shielding and method for manufacturing the same
Provided is an electronic component package for electromagnetic interference shielding. The electronic component package for electromagnetic interference shielding according to an embodiment of the present invention comprises a substrate where electronic components are mounted, a molding member formed on the substrate and the electronic components, a magnetic layer formed on the molding member, and a conductive layer formed on the magnetic layer. Electromagnetic waves generated from the electronic components embeded in the molding member are absorbed in the magnetic layer to thus prevent or reduce harmful influence on other electronic components mounted in adjacent places. In addition, harmful electromagnetic waves generated from the outside may be shielded due to the conductive layer formed on the magnetic layer, thereby protecting electronic components embeded in the molding member from being influenced by the electromagnetic waves.