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