Resources Contact Us Home
Method for sizing widths of power busses in integrated circuits

Image Number 3 for United States Patent #5349542.

Segments within a power network of an integrated circuit are calculated utilizing information generated during design and placement. The performance of logic blocks within the integrated circuit is simulated to obtain an estimated maximum current requirement for each logic block. After obtaining an estimated maximum current requirement for each logic block, the estimated maximum current flow through each power net segment is obtained by summing the estimated current requirements for each logic block which draws current through the power net segment. Based on this estimated maximum current flow through each power segment, a width for each power net segment is calculated. After widths have been calculated, a check may be made to assure that a predetermined electromigration limit is not exceeded. When projected current flow through a power net segment will result in an exceeding of the predetermined electromigration limit, the width of the power net segment is increased.

  Recently Added Patents
Method for generating optical codes for a print-context
Verifiable service policy implementation for intermediate networking devices
Graphical user interfaces and occlusion prevention for fisheye lenses with line segment foci
Image processing apparatus and image processing method
Amnion-derived cells, methods of making and uses thereof
Soybean cultivar CL1013675
  Randomly Featured Patents
Principal axis look-up for color correction
System and method for implementing an additional game to players of a lottery game
In ground, rigid pools/structures; located in expansive clay soil
Toxicity screening methods
Useful life indicators
Device for tightening bolts
Method for extending HCCI load range using a two-stroke cycle and variable valve actuation
Apparatus for controlling the flow of intravenous fluid to a patient
Multi-level class-D amplifier by means of 3 physical levels
Processing-coadjuvating additives for rubbers vulcanizable by means of peroxides