SIGNALInfrastructure Software·Jun 9, 2026, 7:03 AMSignal75Medium term

High-Speed Manufacturing And In-Field Scan Test Access Via PCI Express For GPIO Limited SoCs

High-Speed Manufacturing And In-Field Scan Test Access Via PCI Express For GPIO Limited SoCs

Enabling faster, more scalable, and lifecycle-wide testing while conserving limited pins. The post High-Speed Manufacturing And In-Field Scan Test Access Via PCI Express For GPIO Limited SoCs appeared first on Semiconductor Engineering .

Why this matters
Why now

The increasing complexity and performance demands of SoCs, coupled with the need for cost-effective and in-field testing, drive the development of new testing methodologies.

Why it’s important

This development allows for more efficient and comprehensive testing of advanced silicon, which is critical for the reliability and performance of modern electronic systems, especially those with I/O limitations.

What changes

The ability to utilize high-speed I/O like PCIe for integrated testing pathways significantly reduces the reliance on traditional GPIO pins, streamlining manufacturing and enabling new in-field diagnostics.

Winners
  • · Semiconductor manufacturers
  • · Test equipment providers
  • · High-performance computing sector
  • · Edge AI device manufacturers
Losers
  • · Companies reliant on legacy test methodologies
  • · Complex SoC designs without integrated test access provisions
Second-order effects
Direct

Manufacturing costs for complex SoCs decrease due to more efficient testing processes.

Second

Improved silicon quality and reliability for devices requiring continuous operation or field upgrades.

Third

Accelerated development of more complex and integrated SoCs due to reduced test bottlenecks.

Editorial confidence: 90 / 100 · Structural impact: 60 / 100
Original report

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