Printed circuit board
AssigneeSamsung Electronics Co., Ltd.
InventorYong-won HWANG
Life of this patent
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Abstract
A printed circuit board (PCB) having a multi-layered structure for improving shielding against electromagnetic interference, the PCB including one or more signal layers and an outer grounding layer located on an outermost surface of the PCB. Accordingly, the radiation of electromagnetic waves to the outside from the outer grounding layer is prevented.
Claims31
A printed circuit board having a multi-layered structure to connect to electronic parts and to shield against electromagnetic interference caused by radiation of electromagnetic waves, the printed circuit board comprising:
- one or more signal layers to provide lines for electrical signals inputted to and outputted from the electronic parts;
- and
- an outer grounding layer located on an outermost surface of the printed circuit board to block radiation of electromagnetic waves radiated from the lines of the one or more signal layers.
A method of shielding against electromagnetic interference from a printed circuit board caused by radiation of electromagnetic waves, the method comprising:
- inputting and/or outputting electrical signals to/from electronic parts in one or more signal layers of the printed circuit board;
- and
- blocking radiation of electromagnetic waves radiated from the one or more signal layers with an outer grounding layer located on an outermost surface of the printed circuit board.
A printed circuit board having a multi-layered structure to connect to electronic parts and to shield against electromagnetic interference caused by radiation of electromagnetic waves, the printed circuit board comprising:
- one or more signal layers to provide lines for electrical signals inputted to and outputted from the electronic parts;
- an intermediate grounding layer located within the printed circuit board to block radiation of electromagnetic waves radiated from the lines of the one or more signal layers;
- and
- an outer grounding layer located on an outermost surface of the printed circuit board to block the radiation of the electromagnetic waves radiated from the lines of the one or more signal layers.
Dependencies are inferred from the claim text.