Post Fab Technician - Days

onsemi is seeking a Post‑Fab Technician in Hopewell Junction, NY. This is a multi‑skilled, hands‑on role responsible for supporting semiconductor manufacturing through equipment maintenance, process execution, and day‑to‑day operations. This position requires a strong willingness to learn semiconductor processes, troubleshoot and maintain manufacturing equipment, and support smooth production flow while adhering to all safety, quality, and cleanroom standards.

This role is ideal for a technician who enjoys hands‑on technical work, problem‑solving, and working in a high‑precision manufacturing environment. Application Technicians work 12‑hour compressed shifts in a cleanroom environment on the D2 backend schedule.

D2 Schedule:

• Every other Wednesday


• Every Thursday, Friday, and Saturday


• 6:30 AM – 7:00 PM

Process Support

• Learn, operate, and monitor semiconductor manufacturing processes according to documented procedures


• Assist with process setup, recipe changes, and process optimization under engineering guidance


• Perform inspections, measurements, and basic data collection to ensure process stability


• Identify process deviations and escalate issues to engineering or leadership as required

Equipment Maintenance

• Perform preventative maintenance (PM) on semiconductor manufacturing equipment


• Diagnose and troubleshoot equipment issues to minimize downtime


• Assist with equipment repairs, part replacements, and system calibrations


• Maintain maintenance logs and documentation in accordance with company standards


• Support equipment startups, shutdowns, and qualification activities

Operations & Manufacturing Support

• Operate production tools safely and efficiently within a cleanroom environment


• Load/unload wafers, materials, and tools in accordance with operating procedures


• Monitor equipment performance, alarms, and system statuses


• Support production goals by maintaining equipment uptime and tool availability


• Follow all safety, ESD, and contamination control guidelines

Continuous Improvement & Team Collaboration

• Participate in continuous improvement initiatives for process, equipment, and operations


• Work closely with engineers, technicians, and operators across shifts


• Assist with training new team members and documenting procedures


• Maintain a high standard of housekeeping and organization in work areas

Required Qualifications

• High school diploma or GED with 1-2 years of technical manufacturing experience


• Ability to stand and walk for up to 10-hours per day in a cleanroom environment while wearing coveralls, hoods, booties, safety glasses, and gloves.


• Basic computer literacy, including the use of email, web-based systems, and common office productivity tools (e.g., Microsoft Office applications) to document work, create reports, and communicate with team members.


• Must be self-motivated, showing initiative and drive to exceed performance expectations. 


• Analytical problem-solving and troubleshooting skills with close attention to detail.


• Ability to work well in a diverse team environment.


• Ability to work with minimal supervision and adjust to rapidly changing priorities. 


• Able to speak and write fluently in English. 


• Must be able to lift up to 35 lbs. 

Preferred Qualifications

• Vocational High School, Technical training, or technical trade certificate. 


• Proficient in working with hand tools, meters, and calibration tools


• Knowledge of and ability to follow 5S; LEAN is a plus.

 Hourly: onsemi is excited to share that the base salary range for this position is $18.46 to $32.26 exclusive of fringe benefits or potential bonuses. The final pay rate for the successful candidate will depend on geographic location, skills, education, experience, and/or consideration of internal equity of our current team members. We also offer a competitive benefits package. https://www.onsemi.com/site/pdf/Benefits-Summary-USA.pdf