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Transcript
Micron Technology Clinic
Evaluation of Integrated Circuit
Power Supply Noise with
Two-Phase Analysis
Sze-Hsiang Harper, Michael Tomer, Kristian Blomquist,
Jason Oneida, Ammon Hardcastle
Advisor: Dr. Ken Stevens
Micron Technology Clinic
Evaluation of Integrated Circuit
Power Supply Noise with
Two-Phase Analysis
Presentation Order
Sze-Hsiang Harper
Michael Tomer
Kristian Blomquist
Jason Oneida
Ammon Hardcastle
Micron Technology Clinic
Analysis of the Two-Phase Power
Estimation Method Using HSIMPlus and
HSPICE
Presented by: Sze-Hsiang Harper
Advisor: Dr. Ken Stevens
Overview
► Background
 Integrated Circuit Power
 Power Delivery Network
► Problems
► Solution
 Industry Tools
► Estimation
Method
 HSIMPlus
 HSPICE
► Project
Preview
► Conclusion
Integrated Circuit Power
Taken from “Micron Proposal 09” by Tim Hollis
Power Delivery Network (PDN)
On-Chip Power Delivery
► Power
Delivery Network
(PDN)
► Characteristic of a PDN
should provide a good
complex multi-stage
network supplying power
to all devices in a system
Vdd
Vss
Taken from “Micron Proposal 09” by Tim Hollis
Ideal and Functional PDN
► Ideal
and Functional PDN will:
 Deliver clean power to the Integrated Circuits
 Provide low impedance and low noise reference
path for signals
 Does not contribute excessive Electromagnetic
Interference
Ideal PDN vs. Non-Ideal PDN
Taken from micron proposal 09” by Tim Hollis
Problems
► Transistors
are faster but they operate at a
lower voltage supply and at a higher overall
chip power
► To fully simulate billions of transistors on
the circuits requires an extreme amount of
time
► Circuits need to be analyzed to ensure the
circuit will operate reliably and their
simulations are accurate
Current Solution in Industry
► Model
order reduction required due to design
complexity.
►
“Two-Phase" (or two-pass) method employed
Phase 1 :
Phase 2:
Vcc
Vcc
ICkt
+
V
ICkt
ZPDN
-
Gnd
Gnd
Current Industry Tools
► Apache
 Totem
 Chip Power Model (CPM)
 Redhawk Tools
► Cadence’s
VoltageStorm
► Synopsys’ HSIMPlus
► Hynix Semiconductor
HSPICE
► HSPICE
is the industry's "gold standard" for
accurate circuit simulation and offers
foundry-certified MOS device models with
state-of-the-art simulation and analysis
algorithms.
HSIMPlus
► HSIMPlus
provides a complete set of
analysis tools for device-level and
interconnect reliability analysis
► HSIMPlus has Two-phase Method applied by
it’s Power Net Reliability Analysis (PWRA)
tool.
Approach
Project Preview
Output with Single Layer Package vs. Output
without Package in HSIMPlus
Project Preview
Output with Single Layer Package vs Output
Without Package in HSPICE
Conclusion
► Power
delivery noise affects the
performance and correctness of our circuits
► Evaluated the runtime and accuracy of
HSPICE vs. HSIMPlus with various
configurations
 Too complex a problem to simulate with
accurate tools (HSPICE)
 Model order reduction tools introduce some
error (HSimPlus)