Photomask eBeam Lithography Engineer

Toppan Photomasks Round Rock; Round Rock (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Toppan Photomasks Round Rock is seeking an eBeam Lithography Engineer to support direct write systems (JEOL JBX or NuFlare EBM) in a high-volume mask manufacturing environment.

You will own daily process sustaining, define PM needs, qualify new tools, collaborate with operations, metrology, and vendors to improve yield, cycle time, and product quality; requires 3+ years in eBeam lithography, strong data analysis, and programming basics.

Qualifications

• Bachelor's degree in Engineering, Physics, or Chemistry.
• 3+ years in eBeam lithography or semiconductor equipment engineering.
• Experience with JEOL JBX or NuFlare EBM tools preferred.
• Strong understanding of lithography fundamentals, beam control and pattern fidelity.
• Hands-on ownership of equipment: troubleshooting, PM optimization, and diagnostics.
• Proficiency in JMP/Excel or similar data analysis tools.
• Basic scripting or programming (Python, VBA, SQL, C++, etc.) for automation.
• Excellent communication and documentation skills; ability to collaborate across teams.

Responsibilities

• Support daily process sustaining for eBeam lithography.
• Define equipment PMs/needs and qualify new tools.
• Collaborate with operations, metrology, and vendors to improve yield and cycle time.

Skills

eBeam lithography

Statistical data analysis

Python

Excel

Communication

Lean Six Sigma

Problem solving

Education

Bachelor's degree in Engineering, Physics, or Chemistry

Advanced degree preferred

Tools

JEOL JBX

NuFlare EBM

FDC

Vacuum diagnostics

Job description

Job description:

The Photomask eBeam Lithography Engineer will serve as a key technical contributor supporting eBeam direct write systems for photomask manufacturing (JEOL JBX or NuFlare EBM). As part of the Lithography Engineering team, this role is responsible for daily process sustaining, defining equipment PMs/needs, new tool qualification, and development to optimize performance. The engineer will work closely with operations, technical development teams, and vendors to ensure robust process integration and to continuously improve yield, cycle time, and overall product quality.

Education/Experience Requirements

• Bachelor's degree in Engineering, Physics, Chemistry, or a related technical field; advanced degree preferred.
• 3+ years of experience in eBeam lithography or semiconductor equipment engineering, ideally with JEOL JBX or NuFlare EBM tools.
• Strong understanding of lithography fundamentals, photomask process flows, beam control, dose optimization, and pattern fidelity.
• Hands on equipment ownership experience, including troubleshooting, PM optimization, FDC use, FMEA, vacuum diagnostics, and system stability management.
• Proficiency in SPC, DOE, OCAPs, process windows, and statistical data analysis using JMP, Excel, or similar tools.
• Basic scripting or programming skills (Python, VBA, SQL, C++, etc.) for automation and data insights.
• Strong analytical and problemsolving capability using structured methods (5 Whys, MBPS, 8D, Ishikawa).
• Demonstrated results in yield improvement, defect reduction, and continuous improvement initiatives; Lean Six Sigma preferred.
• Excellent communication and documentation skills with the ability to collaborate across operations, metrology, inspection, and engineering teams.
• Strong organizational skills, attention to detail, and the ability to manage multiple priorities in a highvolume manufacturing environment.