Nanoscale Power Delivery & PI
Overview
Raj Nair, Anasim Corp.
Aug. 21, 2013 (Updated)
The Power Integrity (PI) Wall
...
Power Integrity & the PI Wall
PI degradation with scaling* ~= 1
For constant power density (CPD) or constant power (CP) ...
PI analysis prior art (Droop, IR Drop)
W i t h D i e C a p s
W i t h o u t D i e C a p s
· Lumped and Polygonal Þ Not T...
Differential¹ modeling & design
Grids, transmission lines/planes
Abstract, system level, continuous²
No freq/time do...
PI: How do droops REALLY look?
Supply differential
True-physical power grid noise (π-fp); droops and propagation
08/21/...
Continuum³ analysis insight
True-physical noise wave propagation (rlcsim)
08/21/13 Anasim Confidential 6
³ “Power Deliv...
PI mngmnt: Fundamental methods
1.6E-06
1.4E-06
1.2E-06
1.0E-06
8.0E-07
6.0E-07
4.0E-07
2.0E-07
0.0E+00
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Nano_PI_rvw

Published on: Mar 3, 2016
Source: www.slideshare.net


Transcripts - Nano_PI_rvw

  • 1. Nanoscale Power Delivery & PI Overview Raj Nair, Anasim Corp. Aug. 21, 2013 (Updated) The Power Integrity (PI) Wall PI Analysis Management & Innovation Potential Publications & Discussion
  • 2. Power Integrity & the PI Wall PI degradation with scaling* ~= 1 For constant power density (CPD) or constant power (CP) scaling, where k is the process scaling factor, typically 0.7 Classical CPD/CP scaling → ~70% degradation in PI · 20nm SoC to 16nm FinFET transition k √ k · Appears Constant Power and Constant Power Density, higher cost · ~40% PI degradation; with k = 0.8 and the inverse k-root-k metric · 16nm to 10nm · Scale factor 0.625, leads to > 2X (> 100%) degradation in PI!! · We have seen PI-related product failures (FMAX, INRUSH I) in the past and the present. Business as usual NOT an option. 08/21/13 Anasim Confidential 2 * “Power Integrity Analysis and Management for ICs”, Prentice-Hall, May 2010
  • 3. PI analysis prior art (Droop, IR Drop) W i t h D i e C a p s W i t h o u t D i e C a p s · Lumped and Polygonal Þ Not True-Physical and Spatio-Temporal, eliminates spatial variance and temporal coincidence · Not wideband, and leads to pessimistic, non-optimal chip/pkg/board design. Loses local resonances, constructive/destructive noise interference 08/21/13 Anasim Confidential 3
  • 4. Differential¹ modeling & design Grids, transmission lines/planes Abstract, system level, continuous² No freq/time domain discontinuities 08/21/13 Anasim Confidential 4 ² “Power Integrity Analysis and Management for ICs”, Prentice-¹ Integrity learning from the SI world and from fundamentals Hall, May 2010
  • 5. PI: How do droops REALLY look? Supply differential True-physical power grid noise (π-fp); droops and propagation 08/21/13 Anasim Confidential 5
  • 6. Continuum³ analysis insight True-physical noise wave propagation (rlcsim) 08/21/13 Anasim Confidential 6 ³ “Power Delivery, Integrity Analysis and Management for SoC's”, SoC 2007, FI
  • 7. PI mngmnt: Fundamental methods 1.6E-06 1.4E-06 1.2E-06 1.0E-06 8.0E-07 6.0E-07 4.0E-07 2.0E-07 0.0E+00

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