eBeam Photomask Process Engineer Yield Optimizer

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

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.