Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Slide 1 Spezielle Anwendungen des VLSI – Entwurfs Applied VLSI design Power grid Final meeting Florian Ludwig

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock What is a power grid? target: shortest way to power supply Slide 2 Vdd

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Effects Slide 3 positive –reduces R for power network –lower ir drop –lower current density –less electromigration negative –stripes block a metal layer –limited space for place & route algorithms

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Power rail analysis Slide 4 ring width 0.4µm no stripes

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Power rail analysis Slide 5 ring + stripes width 0.4µm 3x3 stripes

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Power rail analysis Slide 6 ring + stripes width 0.4µm 5x5 stripes

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Power rail analysis Slide 7 ring + stripes width 0.4µm 7x7 stripes

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Power rail analysis Slide 8 ring width 0.4µm no stripes

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Power rail analysis Slide 9 ring width 2µm no stripes

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Power rail analysis Slide 10 ring width 5µm no stripes

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Slide 11 Thank you for your attention!