Assembly Engineer

Job Title

Assembly Engineer

Role Summary

Responsible for monitoring and improving supplier assembly quality across Technology, Quality, Response, Delivery and Cost (TQRDC). Works with assembly suppliers and internal failure analysis (FA) engineers to investigate failures, implement corrective actions, perform audits, analyze yields, and support supplier qualification.

Experience Level

Mid-level. No specific years of experience specified.

Responsibilities

The role focuses on supplier quality assurance for semiconductor assembly and package processes.

• Manage and resolve assembly quality issues: determine root cause and ensure effective, timely corrective actions to prevent recurrence.
• Conduct regular supplier audits and quarterly performance ratings; work with suppliers on continuous improvement plans.
• Monitor and analyze assembly yield, defect modes, and SPC weekly; review assembly WIP daily to ensure short cycle times and on-time delivery.
• Perform risk assessments and dispositions for incoming wafer issues at suppliers and for held lots with assembly issues on the test floor.
• Generate and evaluate supplier quality reports, establish baselines, and identify improvement opportunities.
• Coordinate with FA engineers to identify assembly failures, determine root causes, and implement corrective actions with assemblers.
• Support qualification of new suppliers, materials, packages, and assembly processes.

Requirements

Minimum skills and conditions required for the role.

• Familiarity with general assembly processes and quality-control methodologies, including 8D CAR, FMEA, SPC.
• Working knowledge of failure analysis (FA) concepts and reliability engineering.
• Fluent English in writing and speaking.
• Must be based in Ningbo and work onsite at the Ningbo FHEC facility.

Education Requirements

Bachelor's degree or higher in Engineering or a related technical discipline is required.

About the Company

Company: Monolithic Power Systems

Headquarters: San Jose, California, USA

Monolithic Power Systems, Inc. (MPS) is a leading provider of energy-efficient power solutions for various applications, including industrial, telecom, automotive, and consumer sectors. Known for their cutting-edge integrated power semiconductors, MPS emphasizes innovation, sustainability, and creativity, making them one of the fastest-growing companies in the semiconductor industry.