Package Material R&D Engineer (New Grad)

Job Title

Package Material R&D Engineer (New Grad)

Role Summary

The Package Material R&D Engineer will develop and qualify advanced polymer materials (epoxy, molding compounds, underfill) for semiconductor packaging and establish second-source suppliers. The role focuses on material performance, reliability, and supplier qualification within the packaging R&D team.

Experience Level

Entry-level / New graduate. Role targets recent graduates; industrial years of experience not specified.

Responsibilities

Primary responsibilities include materials development, specification and qualification, supplier development, and failure analysis.

• Lead R&D of packaging materials: epoxy die-attach adhesives, molding compounds for fan-out/SiP/advanced packages, and underfill materials.
• Define material specifications, thermal/mechanical/electrical/reliability performance targets, and qualification plans.
• Develop and qualify second-source suppliers domestically to ensure resilient, cost-effective, high-quality supply chains.
• Perform material characterization and failure-mode analysis to assess process compatibility and long-term reliability.
• Collaborate with cross-functional teams and perform other tasks as assigned by supervisor.

Requirements

Must-have technical skills and experience.

• Deep expertise in chemistry, formulation, processing, and failure modes of packaging polymers.
• Practical experience with material characterization techniques such as TGA, DMA, and rheology.
• Experience with reliability testing and qualification methods (MSL, TCT, HAST, or similar).
• Experience in supplier qualification or materials sourcing for semiconductor packaging.
• Strong experimental and analytical skills with the ability to interpret reliability data.
• Fluent in spoken and written English.

Education Requirements

PhD in Materials Science, Chemical Engineering, Polymer Science, Chemistry, or a closely related field 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.