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STMicroelectronics

Senior Wets Process Development Engineer (R&D)

STMicroelectronics
Integrated Device ManufacturingSingapore, SingaporeFull-time3 weeks ago
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About the role

AI summarised

Senior Wets Process Development Engineer at STMicroelectronics, a global semiconductor company. Responsible for leading the design and optimization of advanced wet processes including plating, etching, and cleaning, and driving technology from lab to high-volume manufacturing.

IDMFull-timeProcess Techno & Eqpt. Dev.

Key Responsibilities

  • Lead the design and optimization of advanced plating processes (including NiPdAu/ENEPIG), wet etching, resist stripping, and precision cleaning modules.
  • Tackle complex, localized process defects—such as thickness non-uniformity or interfacial passivation—using advanced analytical tools (SEM/EDX, AFM).
  • Drive the transition of new wet processes from initial lab-scale concepts to robust, high-volume manufacturing (HVM) readiness.
  • Evaluate and integrate next-generation chemistries, including the management of complex stabilizer systems and additive interactions to improve process margins.
  • Design and execute sophisticated multi-variate experiments to isolate variables in electrochemical reactions and surface preparation.
  • Collaborate with Lithography, PVD, CVD, R&D, and Assembly teams to ensure seamless process compatibility across the entire device fabrication flow.

Requirements

  • Minimum Bachelor's Degree in Chemical Engineering, Materials Science, Chemistry, or a related Engineering discipline.
  • 5 to 10 years of direct experience in semiconductor process development, with a heavy emphasis on wet station technologies.
  • Proven track record in Electroless and Electrolytic plating (experience with NiPdAu chemistry and stabilizer management is a significant plus).
  • Deep expertise in Wet Etching and Wafer Cleaning (SC1/SC2, SPM, and advanced solvent chemistries).
  • Hands-on experience with Resist Stripping and surface preparation for advanced packaging or Front-End-Of-Line (FEOL) applications.
  • Proficiency in Design of Experiments (DOE) and Statistical Process Control (SPC).
  • Ability to interpret complex material characterization data to identify chemical stratification or surface poisoning issues.
  • Strong communication skills to present R&D findings to stakeholders and the 'grit' to solve challenges.