Efficient early stage resonance estimation techniques for C4 package

In this paper, we study the relationship between C4 package resonance effects and logical switching timing correlations, which has not been thoroughly investigated in the past. We show that improper logic designs with some special timing correlations can lead to adverse large voltage drops, which are due to resonance effects in the widely used C4 package. We first present the numerical analysis results on industry C4 package circuits to demonstrate resonance phenomenon. Then we propose a simple algorithm to compute the worst-case logical timing correlations among cells leading to resonance. Finally, we develop an efficient technique in early logic design stage to estimate the resonance risk. Experiment results demonstrate the effectiveness of the proposed method for the accurate prediction of the resonance effect in C4 package.

[1]  Charlie Chung-Ping Chen,et al.  Efficient large-scale power grid analysis based on preconditioned Krylov-subspace iterative methods , 2001, Proceedings of the 38th Design Automation Conference (IEEE Cat. No.01CH37232).

[2]  Yiran Chen,et al.  Deterministic clock gating for microprocessor power reduction , 2003, The Ninth International Symposium on High-Performance Computer Architecture, 2003. HPCA-9 2003. Proceedings..

[3]  W. Guo,et al.  Circuit level Alternating-Direction-Implicit approach to transient analysis of power distribution networks , 2003, ASIC, 2003. Proceedings. 5th International Conference on.

[4]  Aishwarya Dubey.  P/G pad placement optimization: problem formulation for best IR drop , 2005, Sixth international symposium on quality electronic design (isqed'05).

[5]  Eli Chiprout.  Fast flip-chip power grid analysis via locality and grid shells , 2004, ICCAD 2004.

[6]  Kaustav Banerjee,et al.  Impact of on-chip inductance on power distribution network design for nanometer scale integrated circuits , 2005, Sixth international symposium on quality electronic design (isqed'05).

[7]  Sani R. Nassif,et al.  Multigrid-like technique for power grid analysis , 2001, IEEE/ACM International Conference on Computer Aided Design. ICCAD 2001. IEEE/ACM Digest of Technical Papers (Cat. No.01CH37281).

[8]  Haifeng Qian,et al.  Random walks in a supply network , 2003, Proceedings 2003. Design Automation Conference (IEEE Cat. No.03CH37451).