Senior Design Engineer - High-Speed Photodiodes

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

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.