Noise Interaction Between Power Distribution Grids and Substrate

Daniel A. Andersson1,  Simon Kristiansson2,  Kjell O. Jeppson2,  Lars 'J' Svensson2,  Per Larsson-Edefors2
1Department of Computer Science and Engineering, Chalmers University of Technology, 2


We have investigated the interaction between power delivery and substrate coupling in terms of noise. From our results, we identify that substrate contacts do not decrease noise on the supply lines significantly. However, the current injected into the substrate is highly dependent on higher-level grid/package inductance and substrate contact density. We have derived statistically that substrate noise variations could be related to these two design variables to 69.75\% By linear fitting, a model that describes this behavior is derived.