Senior Design Engineer

Coherent Corp.; Fremont (CA); On-site; USD 130,000 - 210,000; Full time

Job summary

Coherent Corp. in Fremont, CA, is seeking a highly skilled engineer to design and develop high-speed, high-sensitivity InGaAs/InP photodiodes for cutting-edge optical transceivers.

The role covers concept through qualification and manufacturing, ensuring top performance, quality, and reliability. You will collaborate with epitaxial growth and process engineers to optimize device structures, while coordinating with test and reliability teams to plan characterization and qualification activities.

Qualifications

• PhD or equivalent with strong background in photodiode design and optoelectronics.
• Experience in design, simulation, and testing of high-speed photodiodes.
• Knowledge of epi materials growth and wafer processes is preferred.

Responsibilities

• Design, simulate, and develop high-speed, high-sensitivity InGaAs/InP photodiodes for optical transceivers and next-generation optoelectronic applications.
• Support product development from concept through qualification and manufacturing, ensuring performance, quality, and reliability objectives are achieved.
• Collaborate with epitaxial growth and semiconductor process engineers to define and optimize device structures, epitaxial designs, and fabrication processes.
• Work closely with test and reliability engineers to develop characterization plans, analyze device performance, and coordinate reliability qualification activities.
• Evaluate device performance through electrical and optical characterization and recommend design improvements based on test results.
• Partner with internal wafer fabrication teams and external manufacturing partners to develop and implement advanced manufacturing technologies.
• Analyze engineering data, troubleshoot technical issues, and drive continuous improvements in device performance, manufacturability, and yield.
• Document design methodologies, experimental results, and technical findings while contributing to intellectual property development and innovation initiatives.
• Stay current with emerging technologies and industry trends in photodiodes, optical communications, and III-V semiconductor devices manufacturing technologies.

Skills

Photodiode design

Device characterization

Wafer process knowledge

Cross-functional collaboration

Reliability and yield analysis

Education

PhD in photodiode design or 3+ years experience

Optoelectronic device design and simulation

Epi materials growth understanding

Wafer front and backend processes

Test and characterization knowledge

Job description

Job Description

• Design, simulate, and develop high-speed, high-sensitivity InGaAs/InP photodiodes for optical transceivers and next-generation optoelectronic applications.
• Support product development from concept through qualification and manufacturing, ensuring performance, quality, and reliability objectives are achieved.
• Collaborate with epitaxial growth and semiconductor process engineers to define and optimize device structures, epitaxial designs, and fabrication processes.
• Work closely with test and reliability engineers to develop characterization plans, analyze device performance, and coordinate reliability qualification activities.
• Evaluate device performance through electrical and optical characterization and recommend design improvements based on test results.
• Partner with internal wafer fabrication teams and external manufacturing partners to develop and implement advanced manufacturing technologies.
• Analyze engineering data, troubleshoot technical issues, and drive continuous improvements in device performance, manufacturability, and yield.
• Document design methodologies, experimental results, and technical findings while contributing to intellectual property development and innovation initiatives.
• Stay current with emerging technologies and industry trends in photodiodes, optical communications, and III-V semiconductor devices. manufacturing technologies.

Primary Duties & Responsibilities

• Design, simulate, and develop high-speed, high-sensitivity InGaAs/InP photodiodes for optical transceivers and next-generation optoelectronic applications.
• Support product development from concept through qualification and manufacturing, ensuring performance, quality, and reliability objectives are achieved.
• Collaborate with epitaxial growth and semiconductor process engineers to define and optimize device structures, epitaxial designs, and fabrication processes.
• Work closely with test and reliability engineers to develop characterization plans, analyze device performance, and coordinate reliability qualification activities.
• Evaluate device performance through electrical and optical characterization and recommend design improvements based on test results.
• Partner with internal wafer fabrication teams and external manufacturing partners to develop and implement advanced manufacturing technologies.
• Analyze engineering data, troubleshoot technical issues, and drive continuous improvements in device performance, manufacturability, and yield.
• Document design methodologies, experimental results, and technical findings while contributing to intellectual property development and innovation initiatives.
• Stay current with emerging technologies and industry trends in photodiodes, optical communications, and III-V semiconductor devices. manufacturing technologies.

Education & Experience

• PhD in photodiodes design and development or with 3+ years of relevant experience
• Optoelectronic device design and simulation
• Familiar with photodiode
• epi materials growth and development
• wafer front process and backend process.
• test and characterization.
• Strong analytical and problem‑solving skills with the ability to work effectively in cross‑functional engineering teams.
• Excellent written and verbal communication skills.

Skills

• Understand the architectural designs of high-speed and high-sensitive InGaAs / InP photodiodes
• Support design high-speed and high-sensitive photodiode epi structures
• Support design both front- and back-end wafer process flows
• Support and Perform device characterization
• Support product qualification and release

Working Conditions

• This role will be based on-site in Fremont, CA.
• Regular use of a computer and other office equipment is necessary.

Physical Requirements

• Sitting for extended periods while working on a computer or in meetings.
• Use of hands and fingers for typing, writing, and handling documents.
• Occasional lifting of objects or materials up to 20 pounds for administrative tasks.
• Ability to communicate verbally and in writing.

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 [e-mail].

About Us

Coherent 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!