Senior Engineer, Cleanroom Metrology

Posted:
1/20/2026, 8:59:26 AM

Location(s):
Ansan, Gyeonggi, South Korea ⋅ Gyeonggi, South Korea

Experience Level(s):
Senior

Field(s):
Software Engineering

Job Title:

Senior Engineer, Cleanroom Metrology

Job Description:

The Role: 

We have an immediate opening for Cleanroom Metrology Engineer in our KTC facility in Ansan. Ideal candidate willcollaborate closely with Materials Solutions Engineers and Research Scientist to enhance the ability to differentiate and measure CMP, CVD, ALD and WET performance using in-house metrology equipment measurements of thin film, defects, and surface topography. In this role, the engineer needs to work with external labs and wafer suppliers for advanced defect measurements in coordination with global engineering teams.

In this role you will: 

  • Cleanroom metrology – film thickness, defect analysis, SEM defect classification 

  • Support measurement needs in experimental planning and execution  

  • Subject matter expert in measurement and key collaborator with Engineers and Scientists 

  • Identifies opportunities to improve Cleanroom and experimental efficiency 

  • Assists with evaluation and process development activities on new Cleanroom tools, including polishers, metrology equipment, or cleaning equipment 

  • Keeps detailed records of experimental data and experimental methods 

  • Shares in responsibility for the safety of shift-coworkers 

  • Defect classification by using Klarity  

Traits we believe make a strong candidate: 

  • Bachelor’s or higher degree in physics, chemistry or related engineering field 

  • 2+ years’ experience in Semiconductor fab 

  • Defectivity metrology experience is a must 

  • Experience working on engineering projects is required. Ability to operate and interpret results from wafer metrology such as semiconductor fab experience as a process engineer or yield enhancement engineer role 

  • Knowledge of CMP modules in Logic and/or Memory fab 

  • Defect metrology – SPx, SEM review, defect classification with a Klarity 

  • Able to work independently in a fast-paced environment 

  • Solid communication skills, fluency in English is a plus.

  • Work in close collaboration with global engineering teams 

  • Project management and leadership capability 

  • Microsoft Office applications skills (Word, Excel, PowerPoint) required; Python/C++, statistical analysis software skills a plus (JMP or Minitab or SAS) 

Your success will be measured by: 

  • Ability to operate in a highly independent manner.  

  • Tolerance of ambiguity and commitment to task 

  • Planning and organization and attention to detail 

  • Strong teamwork and communication skills and highly accountable 

  • Critical to recognize and respond to customer needs in a collaborative 

Entegris

Website: https://www.entegris.com/

Headquarter Location: Billerica, Massachusetts, United States

Employee Count: 5001-10000

Year Founded: 1966

IPO Status: Public

Last Funding Type: Grant

Industries: Advanced Materials ⋅ Chemical ⋅ Data Storage ⋅ Manufacturing ⋅ Semiconductor