Principal Foundry Quality Engineer

Posted 7 Days Ago
Be an Early Applicant
Fremont, CA, USA
In-Office
Senior level
Industrial • Manufacturing
The Role
Leads foundry quality engineering for silicon photonic PIC products. Develops predictive quality metrics using foundry, wafer-test, reliability, yield, and assembly data; identifies manufacturing risks; drives process controls and corrective actions. Conducts foundry audits, root-cause investigations, FMEA and design-for-quality reviews, materials disposition, and product and foundry qualification activities. Requires collaboration with internal engineering teams and global wafer foundries, plus occasional domestic and international travel.
Summary Generated by Built In

Primary Duties & Responsibilities

 

  • Lead the development of predictive quality methodologies that align supplier PCM data with Coherent device designs, wafer-level test results, reliability performance, and factory yields. Identify yield and performance issues not detected by foundry PCM monitoring and partner with foundries to implement enhanced test structures, monitoring strategies, and process controls that improve correlation and early detection of manufacturing risks.
  • Partner with internal engineering teams and external wafer foundries to develop and implement comprehensive foundry quality processes and procedures for Coherent Silicon Photonic PIC Products.
  • Utilize Quality Metrics and KPIs from die testing and transceiver assembly/test sites to derive predictive quality metrics (e.g. defect density, yield, escapes, corrective action effectiveness) and drive preventive measures internally and from the PIC foundries.
  • Participate in the Materials Review Board with factory quality and engineering partners to disposition discrepant material and document routine troubleshooting process flows for improved efficiency.
  • Apply AI and big data techniques to analyze foundry quality data, predict trends, and recommend corrective actions.
  • Perform quality and process audits of new and existing foundries to assess compliance to industry standards and assess product quality and reliability risk.
  • Lead root cause investigations and collaborate with process integration, device engineering, reliability, and foundry teams to implement corrective actions, drive specification changes, resolve process issues, and manage material disposition through the CCB process.
  • Participate in new product design for quality and reliability (DfQnR) reviews and Failure Mode Effects and Analysis (FMEA).
  • Support PIC qualification activities for new PIC products, foundry qualifications, and ongoing improvements.

 

Education & Experience

  • BS/MS/PhD in Material Science, Physics, Electrical Engineering, or equivalent field.
  • 5+ years of experience in CMOS or Silicon Photonics foundry process technology development, foundry technology interface, or related fields and technology nodes.

 

Skills

  • Strong interpersonal, teaming, and problem-solving skills.
  • Work effectively with other members of Coherent Corp within the US and Asia counterparts.  
  • Excellent communication skills and ability to influence individuals with diverse backgrounds.
  • Proficiency in Semiconductor Device Physics and Defect Mechanism analysis.
  • Proficiency in analytical tools for data analysis and MS Office
  • Familiarity with optical device manufacturing preferred, including: 
    • Lasers
    • Modulators
    • Photodetectors
    • Optical switches
    • Co-packaged optics
    • Optical transceivers

 

Working Conditions

  • Ability to travel domestically and internationally as required.
  • Office environment with regular interaction in laboratory and manufacturing settings.

    • Occasional domestic and international travel to suppliers and manufacturing sites may be required.

 

Physical Requirements

  • Ability to work in laboratory and manufacturing environments, including extended periods of sitting, standing, and use of standard lab equipment.

 

Safety Requirements

All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.

 

Quality and Environmental Responsibilities

Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.

Culture Commitment

Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent Corp.:

Integrity – Create an Environment of Trust

Collaboration – Innovate Through the Sharing of Ideas

Accountability – Own the Process and the Outcome

Respect – Recognize the Value in Everyone

Enthusiasm – Find a Sense of Purpose in Work


 

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.


 

If you need assistance or an accommodation due to a disability, you may contact us at [email protected].


About UsCoherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!

Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.


Skills Required

  • BS, MS, or PhD in Materials Science, Physics, Electrical Engineering, or an equivalent field
  • 5+ years of experience in CMOS or silicon photonics foundry process technology development, foundry technology interface, or related technology-node fields
  • Proficiency in semiconductor device physics and defect mechanism analysis
  • Proficiency with analytical tools for data analysis and MS Office
  • Strong interpersonal, teamwork, problem-solving, communication, and influencing skills
  • Ability to work effectively with U.S. and Asia-based teams
  • Familiarity with optical device manufacturing, including lasers, modulators, photodetectors, optical switches, co-packaged optics, or optical transceivers
  • Ability to travel domestically and internationally to suppliers and manufacturing sites

Coherent Corp. Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Coherent Corp. and has not been reviewed or approved by Coherent Corp..

  • Healthcare Strength — Healthcare Strength: Health coverage includes multiple national and region-specific options (UHC HDHP/HSA, PPO, EPO; Kaiser in CA; Health Net in OR) plus separate dental (Delta Dental) and vision (VSP), indicating strong breadth and choice. This breadth supports a solid total package in certain roles and locations.
  • Equity Value & Accessibility — Equity Value & Accessibility: An Employee Stock Purchase Plan allows buying shares at 85% of market price with contributions up to 10% of pay, expanding ownership access. This feature can materially bolster total rewards even when base pay is mid‑pack.
  • Leave & Time Off Breadth — Leave & Time Off Breadth: Paid time off includes 15 vacation days for new hires, 10 paid holidays, and additional paid time during a December shutdown. This structure provides a clear and competitive baseline for time away from work.

Coherent Corp. Insights

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The Company
HQ: Saxonburg, PA
3,569 Employees

What We Do

Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems. We deliver innovations that resonate with our customers in diversified applications for the industrial, communications, electronics, and instrumentation markets. Headquartered in Saxonburg, Pennsylvania, Coherent has research and development, manufacturing, sales, service, and distribution facilities worldwide. For more information, please visit us at coherent.com.

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