Sr Principal Technical Support Engineer

## Sr Principal Technical Support Engineer Apply locations:
Livermore, CA:
Remote, CAtime type:
Full time posted on:
Posted Yesterday job requisition :
JR100864
** 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.

Rooted in our core values — Focus on the Customer, Ownership & Accountability, Respectfully & Effectively Communicate, and Motivate & Develop People — we foster an environment where diverse perspectives are not only welcomed but celebrated. Everyone can make an impact here. Whether it's improving products, supporting customers, or positively influencing peers and the community, the contributions of our people matter.
** Shift:
** The regular hours for this position are day shift.
*
* Job Description:

** The
** Sr Principal*
* ** Technical Support Engineer
** for Probe Cards provides expert-level technical support for Form Factor’s advanced probe card products used in semiconductor wafer testing. This role serves as a key interface between customers, product engineering, manufacturing, and field service teams to ensure optimal performance, fast issue resolution, and continuous product improvement.

The ideal candidate combines deep knowledge of semiconductor test processes, probe card technology, and strong customer engagement skills. Hands-on mechanical ability and wafer prober operation skills for occasional on-site customer support is highly desirable. Ability to speak Mandarin or Korean is a plus.
** Customer Technical Support
*** Provide technical support for probe card products in production environments
* Diagnose and resolve electrical, mechanical, and process-related issues impacting probe card performance
* Support customers having Yield excursions, Electrical continuity issues, Contact problems (MEMS probe alignment, wear, contamination), and Parametric anomalies during wafer sort.
* Act as primary escalation points for complex technical issues.
** Failure Analysis & Debug
** Perform root cause analysis (RCA) on probe card failures using:
* ATE (Automated Test Equipment) data.
* Electrical measurements.
* Microscopy and inspection tools.
* Interpret wafer sort data to identify probe-related anomalies.
* Collaborate with FA lab to drive corrective actions.
** Product & Process Expertise
*** Develop deep expertise in Form Factor probe technologies (e.g., MEMS, cantilever, vertical probes).
* Provide guidance on:
Probe card setup and optimization, Overdrive, contact force, and cleaning cycles, and Alignment procedures and maintenance practices.
* Support new product introductions (NPI) and customer qualifications.
** Cross-Functional Collaboration
*** Work closely with Product engineering (design improvements), Manufacturing (process feedback, yield learning), and Field service teams (onsite troubleshooting).
* Drive corrective and preventive actions (CAPA).
* Participate in engineering change requests (ECR/ECO).
** Onsite & Remote Support
*** Provide onsite support at customer fabs and OSATs when required
* Conduct technical reviews and troubleshooting sessions with customers
* Deliver training on probe card operation, maintenance, and best practices
** Data Analysis & Reporting
*** Analyze large datasets from wafer test systems to identify trends and issues
* Create detailed technical reports, dashboards, and failure…