Lithography Process Senior/ Principal Engineer
24 Jun 2026Job Description:
Summary:
Lead the development and optimization of lithography processes for both Fan-In and Fan-Out eWLB (Embedded Wafer Level Ball Grid Array) packaging technologies.
Responsible for driving key engineering projects such as yield improvement, cost reduction, and process transfers across global manufacturing sites.
Responsibilities:
• Own and optimize lithography processes for PI, PR, and other patterning layers in both FO and FI eWLB.
• Manage photolithography tools (GHI/i-line stepper, coat/develop tracks, etc.), including recipe setup and troubleshooting.
• Lead cross-functional projects focused on cost reduction, process robustness, and NPI transfer.
• Lead process improvements to enhance yield, throughput, and cost efficiency.
• Evaluate and implement new lithography materials (PSPI, PR) and tools.
• Define and maintain process documentation (SOP, OCAP, FMEA, SPC) and training programs.
• Collaborate with equipment vendors, materials suppliers, and internal engineering teams to evaluate and qualify new tools or materials.
• Design and perform DOE, root cause analysis, and statistical data analysis (e.g., JMP, Camline, etc.).
• Support daily fab operations with issue resolution and yield improvement initiatives.
• Mentor junior engineers and provide technical direction to the litho team.
Requirement:
• Bachelor’s or Master’s degree in Engineering
• 5+ years hands-on experience in photolithography process, preferably in advanced packaging
• Strong knowledge of lithography tooling, including exposure systems and coater/developer tracks.
• Skilled in project management, process transfer, and cost/yield improvement.
• Familiar with SPC, FMEA, and problem-solving methodologies.
• Excellent communication skills, with proven ability to engage with both internal stakeholders and external customers.
All Successful candidates can expect a very competitive remuneration package and a comprehensive range of benefits.
Please email your resume in a detailed MS Word format to joyce@peopleprofilers.com stating
1) Current Drawn
2) Expecting Salary
3) Date Available
4) Reason to Leave each job:
We regret that only shortlisted candidates will be notified
Joyce Koh Ai Leng
People Profilers Pte Ltd
20 Cecil St, #08-09, PLUS Building, Singapore 049705
Tel: 6950 9737
EA License Number: 02C4944
EA Personnel Reg nos R1110618
Job ID:JOB-00586