Load Board PCB

The Load Board PCB serves as the critical physical and electrical interface between the Automated Test Equipment (ATE) and the Device Under Test (DUT). Mounted on a test handler or prober, it accurately routes signals from the tester’s resources to the packaged IC’s pins, enabling comprehensive functional, parametric, and reliability testing to screen out defects and ensure only high-quality chips proceed to the market.

Core Features & Advantages

High-Fidelity Signal Integrity:
Engineered with controlled impedance channels, optimized grounding, and low-noise design to ensure accurate signal transmission and measurement for high-speed digital, RF, and mixed-signal ICs.
Robust Construction & Durability:
Built to withstand mechanical stress, repeated insertions, and thermal cycling in high-volume production test environments, ensuring long-term reliability and stability.
Platform-Specific Compatibility:
Designed to interface seamlessly with major ATE platforms including Teradyne Ultraflex, 93K, Advantest V93000, T2000, and other test system series.
Rapid Customization & Turnkey Support:
Full design, prototyping, and volume manufacturing support for custom load boards, including socket integration, DUT board design, and validation assistance.
Yield & Quality Assurance:
Enables efficient final test (FT) of packaged ICs to identify functional faults, parametric outliers, and reliability risks, preventing defective units from reaching end products.

Typical Specifications

Materials: High-speed laminates (Rogers, Megtron), high-Tg FR4
Layer Count: 6 to 20+ layers
Impedance Control: Tight tolerance (±5–8%) for critical nets
Surface Finishes: ENIG, ENEPIG, selective hard gold for contact areas
Interface Support: Spring pins, sockets, coaxial connectors, and custom fixtures
Design Features: Optimized power delivery networks (PDN), guarded traces, and thermal management

Primary Applications

Semiconductor Final Test (FT): Functional and parametric testing of packaged ICs (BGA, QFN, etc.)
System-Level Test: Burn-in testing, reliability validation, and characterization
Automated Production Testing: High-volume sorting and binning on handlers and probers
Engineering Validation: Prototype performance analysis and failure diagnosis