Senior Epi Equipment Technician

Coherent Corp.; Fremont (CA); On-site; USD 75,000 - 95,000; Full time

Job summary

Coherent Corp. in Fremont, California is looking for a Maintenance Engineer specialized in semiconductor equipment. The ideal candidate should have an AA degree and 6-10 years of experience in maintaining complex automated systems. Responsibilities include supporting maintenance of MOCVD systems, troubleshooting equipment issues, and ensuring compliance with safety standards.

Candidates must possess strong mechanical skills, ability to work in a fast-paced environment, and a hands-on attitude. Hazmat Technician certification is preferred. The position offers a structured work schedule and emphasizes collaboration and integrity.

Qualifications

• 6-10 years of experience in equipment maintenance.
• Experience maintaining equipment while under supplied air.
• Hands-on experience with semiconductor process equipment maintenance.
• Experience with vacuum equipment maintenance and troubleshooting.

Responsibilities

• Support MOCVD equipment engineer in maintaining InP-based MOCVD Aixtron growth systems.
• Change chemical sources and maintain vacuum system.
• Document procedures and train other technicians.
• Log and track machine parameters to detect failures.
• Troubleshoot equipment issues to minimize downtime.

Skills

Strong mechanical aptitude

Systematic and organized work style

Hands-on, roll-up-sleeves attitude

Clear and efficient communication and documentation skills

Team player

Certified Hazmat Technician

Education

AA degree

Job description

Overview

The world’s communications infrastructure depends on semiconductor lasers, and particularly those based on indium phosphide (InP) technology. Coherent’s broad portfolio of InP components includes application-specific Fabry-Pérot lasers, directly modulated lasers (DMLs), tunable lasers, photodiodes for high-speed receivers, and power monitoring. In 2022, we introduced 200 Gbps indium phosphide electro-absorption modulated lasers (EMLs) for high-speed datacenter transceivers, providing customers with advanced, robust, and cost-competitive laser devices for 800G and next-gen 1.6T datacom transceiver designs.

Responsibilities

• Support MOCVD equipment engineer in maintaining InP‑based MOCVD Aixtron growth systems, carrying out routine maintenance of reactors and all support systems.
• Change chemical sources, maintain vacuum system and robotic wafer handler, perform chamber cleans, and maintain exhaust abatement system.
• Document procedures, train and certify other equipment technicians in routine maintenance tasks.
• Log and track machine parameters to detect incipient failures or operational deviations.
• Participate in maintenance events involving gas cylinder changes, abatement column changes, and process piping and plumbing requiring SCBA and supplied‑air breathing apparatus.
• Troubleshoot and resolve equipment or process‑related issues to minimize downtime and ensure continuous production.
• Collaborate closely with facilities and Epi process engineering for safe and effective operation of MOCVD equipment.
• Serve on the site Emergency Response Team.

Qualifications

• AA degree with 6‑10 years of experience.
• SCBA certification and experience maintaining equipment while under supplied air.
• Minimum 2 years hands‑on experience with maintenance and repair of complex automated semiconductor process equipment.
• Minimum 2 years hands‑on experience with vacuum equipment maintenance, troubleshooting, and repair.

Skills

• Strong mechanical aptitude.
• Systematic and organized work style.
• Hands‑on, roll‑up‑sleeves attitude.
• Clear and efficient communication and documentation skills.
• Team player.
• Certified or able to obtain Hazmat Technician certification.

Working Conditions

• 5 days per week, 8‑hour weekday work schedule.
• Fast‑paced environment with multiple simultaneous projects.

Physical Requirements

• Work effectively in cramped conditions while wearing PPE, including supplied‑air breathing apparatus.
• Manoeuvre and safely handle heavy equipment.
• Pass yearly physical and SCBA respirator mask fit test for respiratory safety.

Safety Requirements

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

Quality And Environmental Responsibilities

May be responsible for the execution and maintenance of ISO 9000, 9001, 14001, and/or other applicable quality and environmental management system standards, as applicable to the role.

Culture Commitment

Ensure adherence to company values (ICARE) in all aspects of the position:

• Integrity – create an environment of trust.
• Collaboration – innovate through sharing of ideas.
• Accountability – own the process and outcome.
• Respect – recognize the value in everyone.
• Enthusiasm – find a sense of purpose in work.

Equal Opportunity Statement

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.

About the Company

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.