Optoelectronic Packaging Specialist

2 weeks ago

Fremont, California, United States Coherent Full time
Job Overview

Key Responsibilities

• Collaborate with external photonic manufacturing partners to enhance process reliability, optimize yield, and conduct failure investigations.

• Engage with both external and internal suppliers regarding backend photonics processes, including dicing, coating, wafer bumping, flip-chip die attachment, and wafer-scale assembly.

• Innovate and develop cutting-edge optical/electrical integration packaging solutions from initial concept through design validation for advanced high-speed optical subsystems, such as co-packaged optical transceivers and multi-chip modules utilizing InP, GaAs, and silicon photonics components.

• Engineer integration processes for multi-chip hybridized optoelectronic integrated circuits, incorporating flip-chipped lasers, silicon photonic ICs, and high-speed analog and digital ICs on specialized substrates.

• Assess and specify laboratory equipment for wafer-scale assembly processes, including die bonding, mass reflow, under-fill, wafer dicing, and component packaging.

• Design and execute optical die attachment and alignment processes between lasers, photonic integrated circuits, and optical fibers. Conduct design of experiments (DOE) to enhance accuracy, reliability, and efficiency.

• Collaborate with module and package designers to co-design substrate die attach features such as solder pads, under bump metallurgies (UBMs), solders, and optical fiducials.

• Evaluate and source essential materials, including optical adhesives, solders, fluxes, and thermal compounds.

• Conduct measurements and analyses of optical alignment, thermal efficiency, and mechanical stability, including tolerance analysis and characterization.

• Design or specify necessary fixtures and tooling for flip-chip die attachment and wafer-scale assembly processes.

• Prepare process qualifications at both component and subsystem levels in partnership with the quality assurance team.

• Design experiments focused on packaging reliability and perform Failure Mode Engineering Analysis (FMEA).

• Document critical research and development findings for intellectual property protection and create operational work instructions.

Qualifications

• A Bachelor's degree or higher in Applied Physics, Electronics Engineering, Optoelectronics Engineering, Material Science, or a related discipline. Equivalent industry experience is also acceptable.

• A minimum of 2 years of industry experience in silicon photonics fabrication, backend processes, and packaging.

Essential Skills

• Strong understanding of III-V photonics fabrication, backend processes, and packaging techniques.

• Practical experience in cleanroom/laboratory settings, focusing on the implementation and enhancement of processes such as flip-chip die bonding, wire bonding, epoxy bonding, eutectic reflow, soldering, lens placement, and active optical alignment.

• Proficient in process debugging methods and tools, including cross-sectioning, visual inspection, metallurgical analysis, scanning electron microscopy (SEM), and other laboratory analysis instruments.

• Solid knowledge of material chemical and physical properties and their compatibility in die bonding and optical alignment.

• Competence in utilizing thermal and mechanical modeling tools for tolerance analysis, coefficient of thermal expansion (CTE) mismatch analysis, and long-term reliability assessments.

• Experience in high-speed electronics package design and/or laser package design.

• Familiarity with 2D, 2.5D, and 3D wafer-scale assembly techniques.

• Ability to design and oversee internal and external vendors in the manufacturing of fixtures and tooling required for assembly processes.

• Proficient in SolidWorks and thermal analysis tools.

• Experience with New Product Introduction (NPI) and/or Product Lifecycle Management processes is advantageous.

• Familiarity with Oracle, Agile, and MS Project is desirable.

• Knowledge and experience in manufacturing support, including optical component testing and performance evaluation.

• Highly self-motivated with a robust multidisciplinary background is essential.

• Strong problem-solving, critical thinking, and risk management abilities.

• Excellent communication, planning, and organizational skills.

Work Environment

• Must be authorized to work in the United States.

Safety and Quality Standards

All employees are expected to adhere to site EHS procedures and Coherent Corp. Corporate EHS standards.

Commitment to Quality and Environment

This position may involve responsibilities related to the execution and maintenance of ISO 9000, 9001, 14001, and/or other applicable standards within the Quality Management System and Environmental Management System.

Company Culture

Embrace and uphold the company's values (ICARE) in all aspects of your role at Coherent Corp.:

Integrity - Foster 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.

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