《《IBIS+EBD+for+DDR++DDR3+Module+Board---Lance+wang》.pdf

IBIS EBD for DDR2/DDR3 Module Board Lance Wang (lwang@) TMTM IBIS Summit DesignCon 2009 February 5th , 2009 Copyright © 2006-2009 IO Methodology Inc. Outline  IBIS EBD  DDR2/3 Topology Structures  Challenges and Techniques for EBD  Simulation Results using between board and EBD  Conclusions Copyright © 2006-2009 IO Methodology Inc. IBIS EBD A board level component is A board level component is the generic term to be used to the generic term to be used to describe a printed circuit board describe a printed circuit board (PCB) or substrate which can (PCB) or substrate which can contain components or even contain components or even other boards, and which can other boards, and which can connect to another board connect to another board through a set of user visible through a set of user visible pins. pins. Copyright © 2006-2009 IO Methodology Inc. IBIS EBD |  [Path Description] Example_net Pin J25  Len = 0.5 L=8.35n C=3.34p R=0.01 /  Node u21.3  Len = 0.5