Chemline Technician IV (2nd Shift)

About the Role

Ultra Clean Technology (UCT) is a global leader in ultra-high purity cleaning and services for the semiconductor industry, supporting the world's leading chipmakers by delivering contamination-controlled solutions that improve yield, performance, and uptime. At our Phoenix Services site, your work directly impacts the technology powering AI, electric vehicles, and advanced electronics. UCT is looking for a talented Chemline Technician IV to join us in Hillsboro, OR!

The Chemline Technician IV serves as a senior technical specialist and line leader responsible for advanced wet chemical processing and ultra-high purity cleaning of semiconductor components. This role oversees chemline operations, maintains and validates chemical processes, and ensures products meet stringent quality, contamination, and Certificate of Analysis (CoA) requirements. By leading inspections, troubleshooting process and equipment issues, supporting new product introductions and process qualifications, and mentoring junior technicians, the Chemline Technician IV drives safety, quality, throughput, and continuous improvement while ensuring compliance with environmental, health, and operational standards.

Responsibilities

• Perform advanced wet chemical cleaning, stripping, etching, and processing of semiconductor components
• Prepare, monitor, and maintain chemical tank chemistries in accordance with validated recipes
• Lead daily operations of assigned chemline(s), ensuring throughput, quality, and safety targets are met
• Review and approve travelers, batch records, test data, and Certificates of Analysis (CoA)
• Conduct incoming, in-process, and final inspections to ensure compliance with specifications
• Troubleshoot process deviations, contamination risks, and equipment issues; implement corrective actions
• Support first article (FAI), R&D, and new process qualifications
• Train, mentor, and provide technical guidance to junior technicians
• Ensure proper handling, storage, and disposal of hazardous chemicals in compliance with EHS standards
• Drive continuous improvement initiatives (yield, cycle time, defect reduction)
• Maintain accurate documentation and support SPC tracking and data logging
• Occasionally support material handling or customer deliveries, as needed

Qualifications

• High school diploma or equivalent required
• 4–6+ years of experience in wet chemical processing, plating, etch, or semiconductor cleaning
• Strong experience in chemical handling and process control

Skills

• Strong expertise in wet chemical processing and tank chemistry management
• Strong expertise in contamination control (particles, films, residues)
• Ability to work independently on complex assignments with minimal supervision
• Ability to lead workflows and guide team members effectively
• Ability to analyze process data and resolve technical issues quickly
• Working knowledge of SPC, process documentation, and quality systems
• Working knowledge of cleanroom and semiconductor manufacturing environments
• Strong attention to detail and commitment to high purity standards
• Effective communication skills and ability to collaborate cross-functionally
• Computer proficiency (MS Word, Excel, data entry systems)
• Commitment to safety, compliance, and 6S practices
• Deep understanding of chemical reactions, compatibility, and bath control
• Experience with SPC, data logging, and process tracking
• Ability to interpret work instructions, process specs, and engineering documentation
• Proven ability to work independently with minimal supervision
• Proven ability to lead workflows and influence team performance
• Proven ability to solve complex technical problems quickly and effectively

Physical & Work Environment

• Frequent exposure to hazardous chemicals and wet processing stations
• Required use of chemical PPE (respirator, acid suits, gloves, etc.)
• Standing for extended periods
• Lifting up to 50 lbs
• Repetitive motions (handling, loading/unloading parts)