- Onsemi
- San Jose, CA
- Full-Time
- 49 days ago
Package Development Engineer.
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Package Development Engineer: our view in 3 lines...
- The Role:This role is for an experienced engineer developing advanced semiconductor power module and package solutions for automotive and industrial applications.
- The Person:The person will lead package development from concept to production release, define package architecture and assembly flows, optimise substrate and flip-chip designs, run qualification and reliability testing, and work with OSATs and suppliers.
- Requirements:The ideal candidate has a BS/MS in Electrical Engineering, Materials Science, Mechanical Engineering, or a related field, 10+ years of semiconductor package development experience, and proficiency in ACAD, 8D, SPC, DFMEA, and DOE.
About the role
Lead the development and qualification of advanced multi-Phase Power Module, DrMOS, and Smart Power Stage (SPS) packages. Responsible for package architecture, substrate design, flip-chip integration, passive component assembly, reliability qualification, and manufacturing readiness. Collaborate closely with Product Engineering, Silicon Design, Reliability, Operations, OSATs, and suppliers to deliver high-performance, cost-effective power packaging solutions.
Responsibilities
- Lead package development from concept through production release.
- Define package architecture, materials selection, and assembly process flow.
- Develop and optimize substrate designs including stack-up, routing, power planes, via structures, and thermal features.
- Drive flip-chip integration, bump design, underfill selection, and assembly process optimization.
- Develop passive component integration strategies for capacitors, resistors, and magnetic components.
- Perform electrical, thermal, and mechanical performance optimization.
- Lead package qualification and reliability testing per JEDEC and IPC standards.
- Conduct root cause analysis and implement corrective actions for package failures.
- Collaborate with OSATs and suppliers on DFM, process development, yield improvement, and cost reduction.
- Support NPI execution and transfer technologies into high-volume manufacturing.
Qualifications
- BS/MS in Electrical Engineering, Materials Science, Mechanical Engineering, or related field.
- 10+ years of semiconductor package development experience.
- Strong expertise in:
- Multi-Phase Power Modules, DrMOS, and SPS packaging
- Advanced substrate design and manufacturing
- Flip-chip assembly and package integration
- Passive component assembly and optimization
- Thermal management and reliability engineering
- High-volume manufacturing and NPI processes
- Experience working with OSATs, substrate suppliers, and material vendors.
- Strong communication skills, with the ability to effectively collaborate with Business Units, cross-functional teams, internal and external manufacturing partners, and customers.
- Proficiency in engineering tools and methodologies, including ACAD, 8D, SPC, DFMEA, DOE.
- Proven ability to lead projects across organizations and cultures in a fast-paced environment.
onsemi is excited to share the base salary range for this position is $150,000.00 to $249,780.00. The Range exclusive of fringe benefits or potential bonuses. The final pay rate for the successful candidate will depend on geographic location, skills, education, experience, and/or consideration of internal equity of our current team members. We also offer a competitive benefits package. https://www.onsemi.com/site/pdf/Benefits-Summary-USA.pdf
More details about our company benefits can be found here:
We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work.

