Senior Process Engineer
Department: Engineering
Employment Type: Full Time
Location: Plymouth
Description
We are seeking a Senior Process Engineer – Wet Etch or Dry Etch to develop, optimise, and sustain etching processes for MicroLED device fabrication. This role will support high-resolution pixel patterning, mesa isolation, sidewall profile control, and defect reduction across III-V semiconductor materials.
Key Responsibilities
- Develop and optimise wet etch and/or dry etch processes for MicroLED fabrication.
- Define etch recipes for IIIV materials.
- Optimise critical parameters including etch rate, selectivity, anisotropy, sidewall angle, surface roughness, and uniformity.
- Support pixel scaling while maintaining yield and device performance.
- Perform process qualification, tool matching, and SPC control.
- Troubleshoot process excursions, defects, and yield loss related to etch steps.
- Analyse etch results using SEM, AFM, profilometry, ellipsometry, and optical inspection.
- Conduct DOE experiments to improve process robustness and manufacturability.
- Drive defect reduction initiatives related to etch damage, residues, and sidewall passivation.
- Work closely with lithography, epitaxy, CMP & integration engineers, support engineering teams with etch-related design feedback.
Skills, Knowledge and Expertise
- Bachelor’s or Master’s degree in Materials Science, Electrical Engineering, Chemical Engineering, Physics, or a related field.
- 3+ years of hands‑on experience in wet etch and/or dry etch process engineering (semiconductor or display industry).
- Strong understanding of plasma etching physics and/or wet chemical etch mechanisms.
- Direct experience with MicroLED or LED fabrication and/or IIIV materials would be an advantage.
Benefits
- Pension scheme
- Private medical & dental insurance
- 28 days’ holiday + bank holidays
- Free onsite meals
- Onsite gym
- Relocation support
- Visa support available
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