What are the responsibilities and job description for the Wafer Fab Technician position at Coherent?
Wafer Fab Technician
Fremont, CA, United States (On-site)
Job Description
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.
Semiconductor Wafer Fab
Photolithography, Wet Etch, Dry Etch, Plating, Lapping, Polishing, Deposition, Sawing
Stepper, ICP, RIE, PECVD, Profilometer, AFM, CD, SEM
Inspection, SPC, Characterization, Quality Control
ISO 9000, 14000, Cleanroom, ESD
Primary Duties & Responsibilities
Process InP semiconductor wafers in a cleanroom and ESD-safe environment
Become certified in multiple process areas such as:
Photolithography (aligner, stepper, cluster coater, developer, asher)
Wet etch (semi-automated and automated tools)
Dry etch (ICP, RIE)
Thin-film deposition (PECVD)
Metallization/plating (Ebeam, Sputter, anneal, liftoff)
Lapping/polishing
Characterization (CDSEM, AFM, profilometer, stressometer, etc.)
Handle chemicals (acids, solvents, plating solutions, polishing slurry) with caution and following safety protocol
Follow the process flow using traveler and MES (manufacturing execution system) such as CAMSTAR
Enter wafer characterization data and WIP location information into MES
Interact with engineering for process training and execution of non-standard work instructions on engineering material
Able to record and verify discrepancies using travelers and MES on all testing processes, make modification and escalate issues if needed.
Able to stand for duration of shift
Participate and certify for ERT (emergency response team)
Ability to provide process training to coworkers using hands-on demonstration and interpretation of agile document.
Education & Experience
High School Diploma or Equivalent
At least 2 years of working experience in a high-tech manufacturing environment is desired
Wafer handling preferred
Skills
Attention to detail
Good at working with small parts
Experience with semi-automated and automated processing tools
Familiarity with Microsoft Excel and Word
Willing to work Overtime and be part of the ERT (Emergency Response Team)
Meticulous and thorough; diligent with data entry and follow workflow
Ability to speak, read, write, and comprehend English required
Integrity and self-motivated
Ability to work in fast paced team and independent setting all within a clean room
Knowledge of machining, construction, electrical useful
Working Conditions
Must be able to function in a fast-paced environment, carrying out multiple projects at a time.
12-hour shift
AM shift – Thursday – Saturday and every other Wednesday 5am – 5:00 pm
PM shift- Thursday – Saturday and every other Wednesday 5pm – 5:00 am
Schedules are subject to change based on production demands.
Candidate to work on-site in a cleanroom environment where strict cleanliness rules will be enforced.
Physical Requirements
Able to stand for duration of shift when needed
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.
Job Info
Job Identification
2012525
Posting Date
05/21/2026, 11:56 PM
Degree Level
High School Graduate
Job Schedule
Full time
Locations
41762 Christy Street, Fremont, CA, 94538, US
(On-site)
Pay Scale
$24.64 - $33.29 per hour
LinkedIn
#LI-JF1