Sr. Principal Photonic Process Integration Engineer

** Primary

Duties & Responsibilities *
* + Serve as the primary technical liaison between Coherent and external silicon photonics, silicon CMOS, and advanced packaging foundry partners.

+ Coordinate and drive foundry engagements related to process development, process control, manufacturing readiness, and technology qualification.

+ Plan, coordinate, and participate in technical and quality audits of external foundry and manufacturing partners to assess process controls, quality systems, manufacturing readiness, and continuous improvement initiatives.

+ Lead root-cause investigations and failure analysis activities in collaboration with foundries, internal reliability teams, and product engineering organizations.

+ Track, analyze, and resolve wafer-level, die-level, and module-level yield detractors through systematic data analysis and corrective action implementation.

+ Partner with foundries to identify, prioritize, and execute Continuous Improvement Program (CIP) initiatives that improve device performance, yield, reliability, and manufacturability.

+ Collaborate with PIC design teams to identify process sensitivities and implement Design-for-Manufacturing (DFM), Design-for-Yield (DFY), and process robustness improvements.

+ Develop process characterization plans and monitor key process metrics, process windows, and critical device parameters across multiple foundry platforms.

+ Analyze fabrication, test, and reliability data to identify process trends, excursions, and opportunities for improvement.

+ Support new product introductions, technology transfers, process qualifications, and foundry migrations.

+ Work closely with reliability, test engineering, and manufacturing teams to establish process control methodologies and monitor long-term process stability.

+ Participate in technical reviews with internal stakeholders and external foundry partners and communicate project status, risks, and mitigation plans.

+ Drive corrective and preventive actions (CAPA) resulting from yield excursions, reliability concerns, or customer-return investigations.

+ Evaluate foundry process control methodologies, Statistical Process Control (SPC) implementation, excursion management procedures, change control practices, and corrective/preventive action (CAPA) systems.

+ Review foundry process changes, engineering change notices (ECNs), process change notifications (PCNs), and technology updates to assess potential impacts on product performance, yield, reliability, and qualification status.

+ Establish and maintain supplier performance metrics, including yield, defect density, process capability, cycle time, on-time delivery, and quality indicators.

+ Develop and maintain process integration documentation, manufacturing specifications, process control plans, and supplier quality requirements.

** Education & Experience*
* + PhD in Electrical Engineering, Physics, Materials Science, or related field

+ 10+ years of experience working with semiconductor foundries, photonics processes developments

+ Strong understanding of photonics foundry and back-end manufacturing processes

+ Experience in qualification of photonic foundry process and PIC products

+

Experience with advanced packaging

** Skills*
* + Strong understanding silicon photonics process integration and device manufacturing

+ Yield analysis, SPC, and JMP statistical data analysis

+ Failure analysis (FA), root-cause investigation, and CAPA implementation

+ Python programming for data analysis, automation, and reporting

+ Foundry engagement, supplier quality management, and process audits

** Working Conditions*
* + This position is hybrid

+ May require occasional off-site meetings or travel

+ Regular use of a computer and other office equipment is necessary

+ Interaction with team members and external contacts is a regular part of the job

+ May require occasional overtime and flexibility in work hours to accommodate the executive's needs

** Physical Requirements*
* + Sitting for extended periods while working on a computer or conducting meetings.

+ Use of hands and fingers for typing, writing, and handling documents.

+ Occasional lifting of objects or materials up to 20 pounds for…