Principal Test Engineer – PRVXAnalyzer; Probe Card Manufacturing

Forming Our Future Together

Form Factor, Inc. (NASDAQ: FORM) is a leading provider of essential test and measurement technologies along the full semiconductor product life cycle — from characterization, modeling, reliability, and design de‑bug, to qualification and production test. Semiconductor companies rely upon Form Factor’s products and services to accelerate profitability by optimizing device performance and advancing yield knowledge. The company serves customers through its network of facilities in Asia, Europe, and North America.

Day shift.

The Principal Test (A&T) PRVX4 Engineer is responsible for developing, qualifying, and sustaining electrical test processes that utilize the Onto PRVX4 analyzer platform within probe card manufacturing. This engineer ensures accurate electrical characterization, stable test cell performance, and high confidence verification of probe card assemblies prior to customer shipment. The role requires deep understanding of signal integrity, channel routing, electrical limits, and test automation, and strong cross‑functional collaboration with design, SMT, mechanical assembly, and final test teams.

• Serve as the primary owner of PRVX4 test equipment, fixtures, software configurations, and system health.
• Maintain and optimize test programs for continuity, leakage, resistance, capacitance, shorts/opens, and high‑density electrical structures.
• Manage channel mapping, pin validation, and correlation between PRVX4 and downstream customer tester platforms.

• Develop and release test sequences, limits, test configurations, and automation workflows for new probe card products.
• Lead DOE studies to characterize performance across process variations such as plating, lithography, and assembly.
• Define test guard bands, measurement repeatability criteria, and data acceptance thresholds.

• Analyze test yields, electrical failures, and trend data to identify systemic issues affecting probe card performance.
• Drive root‑cause analysis for electrical anomalies such as shorts, leakage drift, high resistance paths, and alignment‑related issues.
• Coordinate with process engineers (SMT, electroplating, AOI) to implement corrective actions and durable preventive controls.

• Own PRVX4 calibration, diagnostic routines, preventive maintenance, and component replacements (probes, cards, interface hardware).
• Oversee golden unit management, system correlation checks, and periodic performance verification.
• Work with internal equipment engineering or vendor support for tool issues, firmware updates, or advanced debugging.

• Provide realtime floor support for test cell interruptions, measurement inconsistencies, or operator‑reported issues.
• Create and maintain documentation: test‑setup guides, runbooks, troubleshooting instructions, and engineering specifications.
• Develop technician training for proper handling, loading, and operation of PRVX4 stations.

• Collaborate with Design Engineering to interpret schematics, routing diagrams, and test specifications for new probe card designs.
• Participate in prototype builds and release qualification, ensuring test coverage and performance metrics meet customer requirements.
• Establish correlation between PRVX4 and customer final test benches during NPI.

• Lead CIP initiatives focused on throughput, repeatability, cycle time, and failure‑rate reduction.
• Identify opportunities to upgrade hardware, improve fixturing, optimize signal routing, or automate repetitive tasks.
• Contribute to capital planning for new analyzers, interfaces, or test technologies.

• Bachelor’s degree in Electrical Engineering, Computer Engineering, or related discipline.
• 5–10 years of experience in semiconductor test, probe card test, PCB electrical test, or related field.
• Strong understanding of electrical measurement fundamentals (R, C, L, continuity, leakage, SI/PI concepts).
• Hands‑on experience with automated test equipment (ATE), parametric analyzers, or matrix switching…