Semiconductor Process Engineer: Photomask Cleaning & Yield

Tekscend Photomask Corp.; Round Rock (TX); On-site; USD 95,000 - 135,000; Full time

Job summary

Tekscend Photomask Corp. in Round Rock, Texas is hiring a Semiconductor Engineer with 3+ years of hands‑on experience in semiconductor fabrication to drive process execution, optimization, and yield improvement in a cleanroom setting for advanced photomask production.

You will lead cleaning process improvements, perform SPC and DOE, and partner with equipment teams to ensure quality and reliability. The role requires strong analytical skills, proactive problem solving, and a commitment to safety

Qualifications

• Bachelor’s degree in a relevant engineering or physical science field.
• Minimum of 3 years of experience in a semiconductor cleanroom or wafer fab environment.
• Hands‑on experience with at least one major fab process area (cleans, lithography, etch, deposition, CMP, diffusion, or metrology).
• Strong understanding of semiconductor manufacturing flows and cleanroom best practices.
• Experience analyzing process performance using SPC and statistical analysis techniques.
• Demonstrated ability to troubleshoot yield, defectivity, and equipment‑related issues using structured problem‑solving methodologies.
• Experience developing and maintaining process documentation, work instructions, and operating procedures.
• Strong project management, organizational, and technical communication skills.

Responsibilities

• Develop, optimize, and sustain photomask cleaning processes to ensure compliance with specifications and quality standards.
• Own and improve post‑process cleaning operations including resist strip, wet cleaning, megasonic cleaning, UV/Ozone cleaning, and contamination removal.
• Monitor and improve key process metrics including defect density, particle performance, yield, cycle time, and tool utilization.
• Perform process characterization, troubleshooting, and root cause analysis to improve yield and reliability.
• Lead root cause investigations for contamination events, particle excursions, haze formation, cleaning defects, and yield losses.
• Establish and maintain SPC systems and process control plans for stable manufacturing performance.
• Define, qualify, and release new cleaning chemistries, process recipes, and operating parameters.
• Lead qualification and acceptance activities for new cleaning equipment, upgrades, and process modifications.
• Develop and maintain process documentation including specifications, FMEAs, SOPs, work instructions, and control plans.
• Train and mentor technicians, operators, and junior engineers on cleaning processes and troubleshooting techniques.
• Participate in on‑call support and rapid response for critical process or equipment excursions.
• Ensure compliance with safety, EHS, and cleanroom protocols.

Skills

Process optimization

SPC

DOE

Six Sigma

Lean manufacturing

Data analysis

JMP

Excel

Python

SQL

Troubleshooting

Education

Bachelor's in Mechanical Engineering

Bachelor's in Materials Science

Bachelor's in Chemical Engineering

Bachelor's in Physics

Tools

JMP

Excel

Python

SQL

VBA

Job description

Tekscend Photomask Corp. in Round Rock, Texas is hiring a Semiconductor Engineer with 3+ years of hands‑on experience in semiconductor fabrication to drive process execution, optimization, and yield improvement in a cleanroom setting for advanced photomask production.

You will lead cleaning process improvements, perform SPC and DOE, and partner with equipment teams to ensure quality and reliability. The role requires strong analytical skills, proactive problem solving, and a commitment to safety