SOLUTION NAVIGATOREngineering conditions
For “Rising thermal resistance during power cycling”, add details that may change the assessment order and check the basis and limits of each candidate.
Engineering conditions
Confirm Rth calculation and external thermal boundaries, then use reversibility and electrical covariance to prioritize failure analysis. Rising Rth does not itself locate die-attach degradation.
Live assessment
Complete Rth calibration and external thermal-boundary records before interpreting trends.
Unconfirmed: Are Rth calculation, junction-temperature calibration, and sensing paths consistent throughout testing?; Are TIM, clamping force, cold-plate flow, and ambient temperature controlled and recorded?Complete the recovery comparison after stopping cycling before selecting interruption samples.
Unconfirmed: Does the Rth rise persist after stopping cycling and restoring identical boundary conditions?Compare Rth and interconnect-related electrical metrics on the same timeline first.
Unconfirmed: Do VCE(sat) / RDS(on), interconnect resistance, or other electrical metrics drift with Rth?Resolve test definitions and thermal boundaries before comparing lifetime models.
Unconfirmed: Are Rth calculation, junction-temperature calibration, and sensing paths consistent throughout testing?; Are TIM, clamping force, cold-plate flow, and ambient temperature controlled and recorded?candidate solutions
The order changes only with conditions you confirm. Public information cannot establish suitability for your actual samples.
After recovery comparisons, electrical correlation, or failure analysis, select the clearest result. Calibration, thermal boundaries, and covariance guide next steps; a single trend does not prove a failed layer.
Rth recovery, persistence, electrical covariance, or imaging changes narrow failure-analysis priorities. Correlation cannot alone establish a specific bond layer, interconnect, or lifetime model as the root cause.
Based on reported conditions and public sources. Ready to assess does not establish sample applicability or root cause. Order does not identify the best solution.
Complete Rth calibration and external thermal-boundary records before interpreting trends.
Complete the recovery comparison after stopping cycling before selecting interruption samples.
No result provided. Clarify key conditions before arranging an assessment.
Nordson Test & Inspection · D9650Z C-SAM for power modules ↗The product page does not claim independent power-cycling root-cause identification. Cross-check baseline samples, scan conditions, and electrical trends.
Nordson Test & Inspection · Acoustic microscopy systems ↗The portfolio page establishes product categories only. Use D9650Z documentation and sample evaluation for specific power-module capabilities.
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Related solutions
Nordson Test & Inspection
Manufacturer information covers power-module and heat-sink bond integrity, supporting interrupted inspection of die-attach changes.
Basis: Manufacturer acoustic microscopy product resourcesThe reviewed public information describes a workflow. It has not been linked to a specific product in the BLNKK solution catalogue.
EAG Laboratories
An external analysis candidate combining acoustic imaging, X-ray, cross-sections, and material analysis to confirm representative failures.
Basis: Manufacturer / laboratory technical-service resourcesThe reviewed public information describes a workflow. It has not been linked to a specific product in the BLNKK solution catalogue.
Infineon
Use device-manufacturer methods to check definitions of ΔTj, Tjmax, on-time, and failure metrics and avoid misinterpreting thermal-resistance trends.
Basis: Manufacturer application resources and public researchThe reviewed public information describes a workflow. It has not been linked to a specific product in the BLNKK solution catalogue.
Siemens Digital Industries Software
Rising thermal resistance after cycling calls for repeatable heat-path comparisons to investigate where changes may occur.
Basis: Siemens’ 2018 primer describes interface comparisons and calibration. Its 2019 IGBT case shows how sensing terminals and power accounting affect thermal-resistance interpretation.Teradyne
Compare electrical parameters before and after power cycling to assess device/module changes.
Basis: The ETS-88 page documents applications, floating resources, test-head configurations and instrument options.Analysis Tech
Thermal-resistance changes before and after power cycling require consistent measurement and cooling conditions.
Basis: The manufacturer lists steady-state, transient, power-pulse and interspersed die-attach measurements during extended-life testing.NI
Record stress, cooling and device parameters together.
Basis: The official page separates IOL and Power Cycler and offers internal, NI or partner integration.SCHLETZ GmbH
Control sensing timing and cooling when comparing thermal degradation.
Basis: The technical body describes cycle-by-cycle records, Rth calculation and time-dependent calibration; some impedance post-processing and cold-plate features are optional.Kewell Technology
Power-device thermal/electrical changes need comparison under controlled supply and cooling conditions.
Basis: The named product body describes integrated testing, flow control, progress monitoring and automatic stopping.Fraunhofer IZM
Generic cycles may not represent a product mission.
Basis: The official page and two-page flyer describe mission-profile advice, customized tests, evaluation and complementary analytics.Siemens Digital Industries Software
Track paired thermal/electrical changes during power cycling before ranking thermal-path failure investigations.
Basis: The 2018 white paper presents POWERTESTER 1500A experiments, supplemented by a ZFW case and SiC webinar outline. These are not lifetime guarantees for every device.References
Infineon's power-cycling research describes accelerated aging of package interconnects and bond layers under active thermal cycling, supporting definitions of temperature swing, on-time, and failure metrics.
Limit: Research conditions relate to specific module structures. They are not directly transferable lifetime curves or stopping criteria for other packages.Infineon's PrimePACK analysis links ΔTj, Tjmax, and ton to lifetime and uses scanning acoustic images to show substrate-to-baseplate solder degradation.
Limit: The information concerns PrimePACK and specific interconnect technologies. Do not extrapolate the dominant failure layer to different module stacks.Infineon's application note demonstrates power-cycle capability interpretation using ΔTvj, Tvjmax, and ton and distinguishes active power cycling from passive thermal cycling.
Limit: Charts apply only to covered products and conditions. Check product revision and the actual mission profile.Infineon's module qualification information lists power- and thermal-cycle conditions and reference standards, supporting clear definitions of test type, temperatures, and cycle counts.
Limit: The page is a qualification overview. It does not provide the user's measurement method, real-time Rth diagnosis, or root-cause determination.Nordson describes D9650Z as enhanced for power-module acoustic inspection, covering heat-sink bond integrity, bond-layer thickness, and wire-bond sites.
Limit: The product page does not claim independent power-cycling root-cause identification. Cross-check baseline samples, scan conditions, and electrical trends.Nordson Test & Inspection's official portfolio includes acoustic microimaging systems as equipment sources for nondestructive package-interface inspection.
Limit: The portfolio page establishes product categories only. Use D9650Z documentation and sample evaluation for specific power-module capabilities.EAG's failure-analysis services list SAM, real-time X-ray, thermal measurement / mapping, cross-sections, and material analysis for package-bond, interconnect, and thermal-path anomalies.
Limit: The service page provides no case-specific test workflow or root-cause guarantee. Good-sample controls, complete test history, and representative sampling are required.Siemens’ 2018 primer describes interface comparisons and calibration. Its 2019 IGBT case shows how sensing terminals and power accounting affect thermal-resistance interpretation.
Limit: Scope and limitations Standalone T3STER measurement is not an integrated power cycler. Structure functions alone cannot establish a specific delamination or individual HBM-layer temperatures in complex parallel heat paths. What to prepare BLNKK suggests documenting sensing connections, temperature calibration, heating power and switching, cooling boundaries and cycle history, with matched before/after conditions. Confirm with the supplier Confirm electrical sensing feasibility, measurement configuration, sampling and calibration, and multi-die interpretation. Discuss integrated cycling separately if needed.The ETS-88 page documents applications, floating resources, test-head configurations and instrument options.
Limit: Scope and limitations The page does not establish complete power cycling or online thermal-resistance measurement. Parameter drift alone cannot locate clip/die-attach damage. What to prepare BLNKK suggests preparing cycle history, operating points, temperature, terminals, baseline parameters, fixture parasitics and Kelvin paths. Confirm with the supplier Confirm instruments, safe voltage/current ranges, protection, fixtures, thermal control, calibration and before/after correlation.The manufacturer lists steady-state, transient, power-pulse and interspersed die-attach measurements during extended-life testing.
Limit: Scope and limitations Resistance and structure functions do not identify voids or degradation layers alone. Thermal measurement does not constitute a complete power-cycling stress system. What to prepare BLNKK recommends preparing wiring, temperature calibration, heating conditions, mounting and cooling records for baseline/post-cycle comparisons. Confirm with the supplier Confirm modes, power and fixtures, temperature sensing, external stress control, interspersed measurement and data synchronization.The official page separates IOL and Power Cycler and offers internal, NI or partner integration.
Limit: Scope and limitations Platform capability does not qualify the DUT. Parameter trends alone cannot locate buried failures or establish service lifetime. What to prepare BLNKK recommends preparing devices, cycle conditions, junction-temperature calibration, cooling and stop criteria, with interruption inspections and data comparisons. Confirm with the supplier Confirm configuration, power/channels, fixtures/cooling, monitoring calibration, integration deliverables and acceptance responsibilities.The technical body describes cycle-by-cycle records, Rth calculation and time-dependent calibration; some impedance post-processing and cold-plate features are optional.
Limit: Scope and limitations Rth drift alone cannot locate an internal failure layer or establish every product’s field life. What to prepare BLNKK suggests device connections, temperature swing, on/off times, cooling/clamping conditions, baseline traces and stopping criteria. Confirm with the supplier Confirm configuration limits, junction calibration, timing delays, Rth method, processing options and exported data.The named product body describes integrated testing, flow control, progress monitoring and automatic stopping.
Limit: Scope and limitations Detecting degradation does not establish its physical layer. Separate calibration and external-interface changes from package changes. What to prepare BLNKK suggests representative devices, electrical limits, junction-calibration method, cycling/cooling records and stopping criteria. Confirm with the supplier Confirm electrical ranges, connections, junction/Rth methods, cold-plate setup and raw-data delivery.The official page and two-page flyer describe mission-profile advice, customized tests, evaluation and complementary analytics.
Limit: Scope and limitations Accelerated stress can change failure mechanisms. Cycling models do not guarantee complete product life, and Rth drift needs independent corroboration. What to prepare BLNKK suggests mission/load and temperature histories, package structure, cooling boundaries, representative samples and the failure questions to address. Confirm with the supplier Confirm protocol/standard version, stopping criteria, calibration, interim analysis, model assumptions, extrapolation limits and report scope.The 2018 white paper presents POWERTESTER 1500A experiments, supplemented by a ZFW case and SiC webinar outline. These are not lifetime guarantees for every device.
Limit: Scope and limitations Accelerated cycle counts do not directly establish field lifetime. Siemens notes that cycling strategy affects failure modes and estimates; signals may not establish every root cause. What to prepare BLNKK suggests preparing connections, current/power ranges, cooling boundaries, operating cycles and failure criteria. Bring mission-profile data for any field-lifetime discussion. Confirm with the supplier Confirm model, device compatibility, temperature calibration, cycling control, thermal sampling intervals and analysis options. Agree on failure criteria, data delivery and supplementary analysis.Before assessment