Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Slide 1 Power Network Robert Balla Selected Topics in VLSI-Design Institute MD, University of Rostock

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Slide 2 Overview Introduction Voltage-Drop IR-Drop on Filter

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Introduction Purpose of Power-Networks:  Distribution of Power and Ground to components on Chip Requirements: High performance High Reliability Small area Problems: Shrinking device dimensions High frequencies Increasing power consumption Large switching currents Slide 3

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Voltage-Drop Slide 4

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Voltage-Drop Large Voltage-Drop causes Reduced switching speed Reduced noise margins noise Help by decoupling capacitors (implicit and explicit)  local charge storage Slide 5

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock IR-Drop on Filter Slide 6

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock IR-Drop on Filter Slide 7

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock IR-Drop on Filter Slide 8

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock IR-Drop on Filter Slide 9

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Sources (1) (2)“On-Chip Power Distribution Grids With Multiple Supply Voltages for High-Performance Integrated Circuits“ - Mikhail Popovich (3)“Voltage Drop in On-Chip Power Distribution Networks” - DEE-UPC Slide 10