Senior Principal Technical Support Engineer

This is a fully remote position, open to applicants in California.

📋 Description

• Deliver expert-level technical assistance for advanced probe card products utilized in semiconductor wafer testing.

• Identify and resolve electrical, mechanical, and process-related challenges impacting probe card functionality.

• Assist customers with yield issues, electrical continuity problems, contact challenges, and parametric irregularities during wafer sorting.

• Serve as the primary escalation point for intricate technical problems.

• Conduct root cause analysis leveraging ATE data, electrical measurements, microscopy, and inspection instruments.

• Analyze wafer sort data to detect probe-related discrepancies.

• Collaborate with the failure analysis laboratory to implement corrective measures.

• Cultivate expertise in MEMS, cantilever, and vertical probe technologies.

• Direct probe card setup, optimization, overdrive, contact force, cleaning cycles, alignment processes, and maintenance tasks.

• Assist with new product launches and customer qualifications.

• Work alongside Product Engineering, Manufacturing, and Field Service teams.

• Propel corrective and preventive actions and engage in engineering change requests.

• Provide on-site support at customer fabs and OSATs as needed.

• Conduct technical reviews and troubleshooting sessions with clients.

• Offer training on probe card operation, maintenance, and best practices.

• Examine wafer test datasets to uncover trends and issues.

• Generate technical reports, dashboards, and failure summaries.

• Monitor contact resistance, probe-card-related yield loss, and MTBF.

⛳️ Requirements

• At least 8 years of relevant experience with a Bachelor’s degree; or 6 years with a Master’s degree; or a PhD with 3 years of experience; or equivalent qualifications.

• Familiarity with FormFactor probe cards or comparable technologies.

• Understanding of advanced nodes (e.g., FinFET, 5nm/3nm processes).

• Experience in supporting high-volume manufacturing (HVM).

• Knowledge of yield engineering and test optimization.

• Previous field application or customer-facing experience.

• Proficiency as an Automatic Wafer Prober user.

• Hands-on experience in mechanical assembly and electrical debugging.

• Strong comprehension of semiconductor testing processes and probe card technology.

• Capability to analyze wafer test datasets.

• Willingness to provide occasional on-site customer support.

• Proficiency in Mandarin or Korean is a plus.

• Availability for day shifts.

🏝️ Benefits

• Medical insurance.

• Dental insurance.

• Vision insurance.

• Life insurance.

• Disability coverage.

• 401(k) with company matching.

• Employee stock purchase plan (ESPP).

• Paid time off.

• Quarterly profit-sharing bonuses.

• Flexible spending or savings accounts.