Systems and methods for reducing simultaneous switching...

Details Systems and methods for reducing simultaneous switching... Systems and methods for reducing simultaneous switching...

2005-04-13

2009-02-17

Ha, Nguyen T (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S306100, C361S306300, C361S321100, C361S311000, C361S303000

Reexamination Certificate

active

07492570

ABSTRACT:
Systems and methods for reducing switching noise in an integrated circuit. In one embodiment, decoupling capacitors are connected to the integrated circuit from the underside of the substrate on which the integrated circuit die is manufactured. The decoupling capacitors are positioned with a higher concentration in the “hot spot” areas of the integrated circuit instead of being evenly distributed. In one embodiment, the decoupling capacitors and the corresponding hole(s) in a circuit board on which the integrated circuit is mounted are positioned so that the circuit board provides support for the central portion of the integrated circuit and thereby prevents the integrated circuit from flexing away from the heat sink/spreader. In one embodiment, the concentration of vias connecting the different ground planes and/or power planes within the integrated circuit is higher in hot spots than in other areas.

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“Intel Pentium 4 Processor in the 423-pin Package,” Data sheet; Aug. 2001.

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