SLEW WINDOW SHIFT PLACEMENT METHOD TO REDUCE HOT SPOTS AND RECOVER VT/AREA

Systems and methods for reducing hot spots and recovering Vt/area to improve chip performance in an integrated circuit design. According to the method, physical grid areas for an IC chip are defined and a switching window for library elements of an integrated circuit design in a region of the chip i...

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Hauptverfasser: Bickford Jeanne P, Chandra Alok, Kumaraswamy Anand, Prudvi Venkatasreekanth, Prajapati Sandeep
Format: Patent
Sprache:eng
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Zusammenfassung:Systems and methods for reducing hot spots and recovering Vt/area to improve chip performance in an integrated circuit design. According to the method, physical grid areas for an IC chip are defined and a switching window for library elements of an integrated circuit design in a region of the chip is determined. Points of peak current for library elements within the switching window are determined. A grid area is selected and library elements having additional usable timing margin are identified. The library elements are prioritized, based on location in the grid area according to peak current and usable timing margin. Based on order of priority, the timing of signal paths in the grid area may be adjusted in order to misalign points of peak current and maintain current density in the region below a threshold and/or a library element within the grid area may be changed to recover area within the grid area.