Material Characterization Scientist

Entegris is currently seeking aPolymerCharacterization Scientist CMPPadto join our Materials Solutions Division R&D team. This position will be based at our Aurora (Greater Chicago Area) facility.

In this role you will develop and advance fundamental understanding of the mechanical and rheological behavior of polymer systems used in CMP pad materials. You will lead the development of metrology capabilities and analytical frameworks that enable deep insight into structureproperty relationships supporting improved product design consistency and performance.

WhatYoullDo

Metrology & Method Development:

• Develop optimize and standardize mechanical testing methods(e.g. DMA stressstrain creep oscillatory rheology)for CMP pad materials across development and manufacturing environments

• Establish rheological characterization protocols (e.g. cure kinetics viscoelastic behavior frequency/temperature sweeps) to understand polymer network formation and processing sensitivity

• Define and implement measurement best practices calibration methods and inter-lab correlation to ensure data consistency and reproducibility

EstablishStructurePropertyPerformanceRelationship:

• Correlate mechanical and rheological properties to CMP performance metrics

• Build property-performance models to enable material design targets and process control windows

• Support root-cause investigations for yield consistency and customer performance issues using quantitative metrology data

Data &Modeling:

• Working with scientistsand engineers in product design and production to design and execute DOE-based studies to isolate key variables affecting mechanical properties

• Develop data analysis workflows and predictive models;Establish databases and visualization tools to enable data-driven decision making across teams

Cross-functional andExternalCollaboration:

• Partner with formulation scientists process engineers and application teams to translate metrology insights into actionableproductsand process improvementsguidance

• Work with manufacturing teams to transfer lab-scale metrology into production-relevant measurements

• Collaborate with instrument vendors and external partners to evaluate and deploy new characterization capabilities

Communication &TechnicalLeadership

• Document and communicate findings through technical reports standards and presentations to internal and external stakeholders

• Contribute to metrology strategy and roadmap identifying gaps and future capability needs

• Mentor team members on best practices in mechanical testing rheology and data interpretation

WhatWeSeek

• PhD in Polymer Science Materials Scienceor related field required

• 3 years ofpost-graduate industryexperience in polymerstructuralcharacterization mechanical testingandrheology; Successfuldevelopedtest methods measurement systems or analytical approaches

• Hands-on experience with characterization techniques such asthermal-mechanical testing rheometertensile and fatigue testingand compression and flexural testingwith demonstrated ability to design and troubleshoot experiments

• Strong understanding of polymer mechanical and viscoelastic behavior including structureproperty relationships and the impact of network formation crosslinking and formulation on material performance

• Practical experiencein Design of Experiments (DOE) data analysis and problem solving

• Experience with thermosetthermoplasticelastomeric or filled polymer systems is preferred

• Knowledge of CMP or semiconductor processes is a plus but not required

• Self-motivated collaborative and able to operate effectively in a cross-functional fast-paced environment

• Strong communication skills with the ability to translate technical findings into practical recommendations