Senior Engineering Technician

Coherent•Fremont, CA

7d•Onsite

About The Position

About Indium Phosphide (InP) Technology The world’s communications infrastructure depends on semiconductor lasers, and particularly those based on indium phosphide technology. Indium phosphide lasers are engineered to emit at wavelengths that are optimal for long-distance transmission through fiber optics. In short, they enable the optical networks that form the global internet. Coherent’s broad portfolio of InP components includes application-specific Fabry-Pérot lasers, directly modulated lasers (DMLs), and tunable lasers. It also includes 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. This design provides our customers with the most advanced, robust, and cost-competitive laser devices for their 800G and next-gen 1.6T datacom transceiver designs. Our world-class and highly reliable InP technology platform is one of the very few in the industry that has been proven, with more than one hundred million lasers in the field deployed over the last decades. The Epitaxy Engineering Technician supports wafer fabrication operations by monitoring, maintaining, and optimizing epitaxial growth processes. This role partners closely with process engineers, equipment technicians, and production teams to ensure process stability, high yield, and continuous improvement. The ideal candidate is detail-oriented, data-driven, adaptable to a fast-paced manufacturing environment, and an effective communicator.

Requirements

AA degree or higher with 3-5 years experience
2 years minimum hands-on experience with operation of computer-controlled and manual vacuum processing equipment such as MOCVD, PECVD, ICP, etc.
2 years minimum hands-on experience with handling InP wafers
2 years minimum hands-on experience with wet chemical processing
InP wafer handling
Work in a systematic and organized way
Hands-on, roll up sleeves attitude
Clear and efficient communication and documentation skills
Team player
All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.
Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent Corp.: I ntegrity – Create an Environment of Trust C ollaboration – Innovate Through the Sharing of Ideas A ccountability – Own the Process and the Outcome R espect – Recognize the Value in Everyone E nthusiasm – Find a Sense of Purpose in Work

Nice To Haves

Certified or able to obtain Hazmat Technician certification

Responsibilities

Support daily epitaxy process operations within the wafer fabrication facility
Monitor process performance using Statistical Process Control (SPC) and respond to out-of-control conditions
Collect, analyze, and trend process data to identify deviations, root causes, and improvement opportunities
Execute and document process qualifications, engineering experiments, and development runs
Assist with tool setup, recipe management, and implementation of approved process changes
Perform and maintain weekly standards and routine checks for metrology and characterization tools
Collaborate with process engineers to troubleshoot yield, uniformity, thickness, and defect-related issues
Maintain accurate documentation, logs, and reports in compliance with fab procedures and quality requirements
Effectively prioritize tasks to support production schedules and engineering deadlines
Communicate clearly with cross-functional teams including engineering, production, and maintenance
Adhere to all safety, cleanroom, chemical handling, and contamination control protocols