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Industry

Thermal Ownership Starts Before the Board

Chiplet architecture, package floorplan, and substrate stack-up decide the junction temperature envelope before a board ever exists. Thermal risk taken on at the die and package level compounds at every stage downstream.

Why thermal decides the outcome here

Junction temperature governs electromigration, timing margin, and long-term reliability. A package that looks acceptable on a datasheet Rth value can fail in the field once real power maps, TIM bond-lines, and neighboring-die heating are accounted for — and by the time that shows up at the board or system level, the package is already locked.

Engineering Challenges
  • Junction temperature uncertainty across power states
  • Package thermal resistance and stack-up validation
  • Chiplet and 3D IC heat paths and die-to-die cross-talk
  • Compact thermal model accuracy for downstream simulation
  • Package-to-system correlation
  • TIM performance inside the package cavity
Dominant Thermal Physics
  • Die-level heat concentration and spreading
  • Through-package conduction and interposer thermal resistance
  • TIM and die-attach bond-line performance
  • 3D IC die-to-die thermal coupling
  • Junction-to-case and junction-to-board thermal paths
Applicable Standards
  • JEDEC JESD51 series (thermal characterization)
  • JEDEC JESD15-4 (compact thermal models)
  • JEDEC JC-15 package thermal metrics
Recommended Simulation Tools
Recommended Measurement Hardware

Simulation shows the design. Measurement proves it.

ROIfast™ Services

Paid engineering engagements for this industry.

  1. 01

    Package thermal stack-up review and compact thermal model authoring

  2. 02

    T3Ster-based junction-to-case and junction-to-board characterization

  3. 03

    Power cycling qualification with in-situ structure-function monitoring

  4. 04

    Production screening program setup with Industrial T3Ster

Validate package thermal behavior before it becomes a system constraint.

Talk to a thermal specialist about measurement-validated compact thermal models for your package architecture.

Talk to a Thermal Specialist →