DVD - Lecture 9e: Signal Integrity (SI) and Design for Manufacturing (DFM)

[@haziqiqbalhussain]

Hey Professor. How can we identify intuitively (without tools) which net is aggressor and which is victim? Does it depend on frequency or any other parameters?

[@AdiTeman]

Hi, So, my intuitive, straightforward answer is that if two nets are routed close to each other for a substantial distance, then there is a good chance that an SI issue will occur. But it's very hard to actually see this without a tool, since you have lots (...millions... billions...) of nets with different segments and so forth. Which is a victim and which is aggressor. Well, first of all, they can "trade places". In other words, one of them can be the aggressor to the other for a certain timing path and can be the victim for a different timing path. But usually, the victim will be the one that is weakly driven, which can be seen as a slow transition on the net. You can look at DRVs - max capacitance and max transition (and max fanout) reports to find high potential candidates for SI problems. But really, just use the tool...

[@rohanyadala9096]

Very nice...

[@AdiTeman]

Thank you! Cheers!