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RF Induction Systems Engineer – Crystal Growth & Melting Equipment
Accepting applicationsCoherent Corp. · Budd Lake, NJ
Full-Time Mid_senior RF
Posted
2d ago
Category
Manufacturing
Experience
Mid_senior
Country
United States
Key Responsibilities
JOB DESCRIPTION
RF System Design & Development
Design and optimize current RF induction heating systems (typically 1–50 kHz range)
Develop and tune series and parallel resonant circuits for high-power operation
Specify and integrate RF generators, matching networks, and capacitor banks
Design and optimize induction coils for thermal profile and coupling efficiency
Process & Equipment Engineering
Support and develop crystal growth melting systems
Optimize thermal gradients, melt stability, and power delivery
Integrate RF systems with crystal growth platforms (e.g., CZ, HEM, skull melting)
Develop process recipes and operating envelopes for different materials
Modeling & Simulation
Perform electromagnetic and thermal simulations (e.g., COMSOL, ANSYS)
Model coupling efficiency, current distribution, and heating profiles
Analyze load-dependent impedance behavior and resonance shifts
System Tuning & Troubleshooting
Lead tuning of RF systems under dynamic load conditions
Diagnose issues related to:
detuning and reflected power
instability and oscillation
coil overheating and inefficiency
Optimize performance across full process cycle (cold start → melt → steady-state)
Hardware Integration
Design and review:
coil assemblies
cooling systems (water-cooled copper structures)
bus bars and power delivery systems
Ensure robust high-current, low-loss electrical connections
Testing & Validation
Develop test plans and validation procedures
Analyze system performance using:
current/voltage measurements
phase and impedance analysis
thermal diagnostics
Lead commissioning of new equipment and upgrades
Cross-Functional Collaboration
Work with materials scientists, process engineers, and mechanical teams
Support scale-up from R&D to production systems
Provide technical leadership and mentorship to junior engineers
Required Qualifications
Bachelor’s or Master’s degree in Electrical Engineering, Physics, or related field
5+ years of experience in RF power systems, induction heating, or high-power electronics
Strong understanding of:
resonant circuits (series and parallel)
impedance matching
RF power delivery systems
Hands-on experience with induction heating systems (kHz range preferred)
Experience with high-temperature or vacuum systems
Preferred Qualifications
Experience with crystal growth systems (CZ, HEM, skull melting, Bridgman)
Familiarity with reactive oxide or semiconductor materials
Experience with COMSOL, ANSYS Maxwell, or similar tools
Knowledge of:
thermal management and cooling design
high-current bus design
vacuum and controlled atmosphere systems
Experience working with RF generators (solid-state or tube-based)
Key Skills
RF system tuning and optimization
Electromagnetic and thermal analysis
Troubleshooting complex coupled systems
Hands-on experimental and debugging skills
Strong problem-solving and analytical thinking
Working Environment
Combination of lab, pilot production, and engineering design environment
Exposure to high-temperature systems, high current RF equipment, and vacuum systems
Requires hands-on work with experimental setups and industrial-scale 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 talentacquisition@coherent.com .
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!
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.
Show more Show less
JOB DESCRIPTION
RF System Design & Development
Design and optimize current RF induction heating systems (typically 1–50 kHz range)
Develop and tune series and parallel resonant circuits for high-power operation
Specify and integrate RF generators, matching networks, and capacitor banks
Design and optimize induction coils for thermal profile and coupling efficiency
Process & Equipment Engineering
Support and develop crystal growth melting systems
Optimize thermal gradients, melt stability, and power delivery
Integrate RF systems with crystal growth platforms (e.g., CZ, HEM, skull melting)
Develop process recipes and operating envelopes for different materials
Modeling & Simulation
Perform electromagnetic and thermal simulations (e.g., COMSOL, ANSYS)
Model coupling efficiency, current distribution, and heating profiles
Analyze load-dependent impedance behavior and resonance shifts
System Tuning & Troubleshooting
Lead tuning of RF systems under dynamic load conditions
Diagnose issues related to:
detuning and reflected power
instability and oscillation
coil overheating and inefficiency
Optimize performance across full process cycle (cold start → melt → steady-state)
Hardware Integration
Design and review:
coil assemblies
cooling systems (water-cooled copper structures)
bus bars and power delivery systems
Ensure robust high-current, low-loss electrical connections
Testing & Validation
Develop test plans and validation procedures
Analyze system performance using:
current/voltage measurements
phase and impedance analysis
thermal diagnostics
Lead commissioning of new equipment and upgrades
Cross-Functional Collaboration
Work with materials scientists, process engineers, and mechanical teams
Support scale-up from R&D to production systems
Provide technical leadership and mentorship to junior engineers
Required Qualifications
Bachelor’s or Master’s degree in Electrical Engineering, Physics, or related field
5+ years of experience in RF power systems, induction heating, or high-power electronics
Strong understanding of:
resonant circuits (series and parallel)
impedance matching
RF power delivery systems
Hands-on experience with induction heating systems (kHz range preferred)
Experience with high-temperature or vacuum systems
Preferred Qualifications
Experience with crystal growth systems (CZ, HEM, skull melting, Bridgman)
Familiarity with reactive oxide or semiconductor materials
Experience with COMSOL, ANSYS Maxwell, or similar tools
Knowledge of:
thermal management and cooling design
high-current bus design
vacuum and controlled atmosphere systems
Experience working with RF generators (solid-state or tube-based)
Key Skills
RF system tuning and optimization
Electromagnetic and thermal analysis
Troubleshooting complex coupled systems
Hands-on experimental and debugging skills
Strong problem-solving and analytical thinking
Working Environment
Combination of lab, pilot production, and engineering design environment
Exposure to high-temperature systems, high current RF equipment, and vacuum systems
Requires hands-on work with experimental setups and industrial-scale 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 talentacquisition@coherent.com .
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!
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.
Show more Show less