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US 6,445,590 B1Granted
Capacitor for DRAM connector
AssigneeIntel Corporation
InventorKeith Dow
Life of this patent
Estimating the term…
Abstract
In one embodiment, a dummy via is created in a circuit board. The dummy via is positioned and coupled to a portion of a transmission line. This portion of the transmission line is further coupled to a signal lead of a connector, which creates additional capacitance to lower the impedance of the connector.
Claims19
A circuit board comprising:
- a footprint including a plurality of apertures, the footprint including aperture which receives a signal lead of a connector and a neighboring aperture to receive a ground lead of the connector;
- and
- a dummy via formed in the circuit board between the aperture and the neighboring aperture, the dummy via being coupled to the signal lead of the connector by a transmission line when the plurality of leads of the connector are inserted through the footprint.
An electronic system comprising:
- a circuit board including a plurality of apertures associated with a component footprint, a dummy via and at least one transmission line coupled to the dummy;
- and
- a connector attached to the circuit board, the connector including a plurality of leads for insertion through the plurality of apertures, the plurality of leads include a ground lead and a signal lead that is inserted through a first aperture of the plurality of apertures and coupled to the at least one transmission line;
- the dummy via is positioned between a first aperture of the plurality of apertures configured for receipt of the signal lead and a second aperture of the plurality of apertures configured for receipt of the ground lead.
1 more element
A method for reducing signal distortion from a connector comprising:
- implementing a dummy via within a circuit board;
- and
- coupling the dummy via to a signal lead of a connector attached to the circuit board;
- implementing of the dummy via includes situating the dummy via between the signal lead and a ground lead of the connector when the connector is attached to the circuit board.
1 more element
Dependencies are inferred from the claim text.