Senior Process Engineer: Dry Etch

Coherent Corp.•Sherman, TX

67d

About The Position

Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us! Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.

Requirements

Bachelor’s, Master’s, or Ph.D. in Materials Science, Electrical Engineering, Physics, or related field.
10+ years of experience in semiconductor process engineering, specializing in dry etch (ICP, RIE).
Strong background in etch chemistry, selectivity, anisotropy, and plasma physics for III-V semiconductor processing.
Expertise in GaAs and InP processing, including device fabrication challenges and best practices.
Hands-on experience with metrology tools such as SEM, AFM, ellipsometry, profilometry, and XPS for process verification and defect analysis.
Strong problem-solving skills with experience in data analysis, SPC, and DOE.
Ability to work in a cleanroom environment and interface with cross-functional engineering teams.

Nice To Haves

Experience with high-volume semiconductor manufacturing or advanced R&D prototyping.
Knowledge of metal etching, dielectric etching, and post-etch cleaning techniques.
Familiarity with automation (SECS/GEM), scripting, or AI-driven process control, including FDC and APC
Demonstrated leadership in technical project management and team mentoring.

Responsibilities

Lead the development and optimization of dry etch processes (ICP, RIE) for compound semiconductor applications.
Drive process integration and improvement initiatives to enhance device performance and yield.
Define and control etch process parameters for GaAs and InP substrates, ensuring precision, uniformity, and repeatability.
Utilize advanced metrology tools such as SEM, AFM, ellipsometry, profilometry, XPS, XRD, and optical interferometry for process characterization and defect analysis.
Work closely with integration, production, and device engineering teams to integrate etch processes into the overall semiconductor fabrication flow.
Troubleshoot process deviations, particle contamination, and chamber performance issues, implementing corrective actions and continuous improvement strategies.
Establish and maintain SPC for process monitoring and optimization.
Evaluate and qualify new etch chemistries, hardware configurations, and process automation tools.
Develop and document process recipes, work instructions, and standard operating procedures (SOPs).
Mentor junior engineers and provide technical leadership in semiconductor dry etch and metrology.