CMP Module Engineer

Onsemi is seeking a CMP Engineer with 5+ years of semiconductor experience to support and optimize CMP processes in a 300mm high-volume manufacturing environment. This role focuses on process sustainment, yield improvement, and defect reduction, with increasing ownership of continuous improvement projects.

Responsibilities

Process Sustainment & Control

• Support the daily operation of CMP processes
• Monitor key parameters:
  Removal rate (RR), WIWNU (within-wafer non-uniformity), Defectivity (scratches, particles)
• Maintain process stability within defined control limits, respond to process excursions, and out-of-control conditions

Yield & Defect Improvement

• Analyze yield loss and defect trends using SPC and fab systems. Identify top contributors:
  Slurry variation, Pad wear/conditioning, Cleaning effectiveness, Develop and implement corrective actions

Equipment & Process Support

• Support tool matching, execute recipe changes, assist in troubleshooting tool-related issues, and Tool qualifications, Tool installations, Process characterization
• Execute assigned CIPs tied to KPIs:
  Yield improvement, Defect reduction, Cost optimization, Equipment Performance Improvement
• Productivity improvement, Support team skill development, and support larger cross-functional projects

Documentation & Process Control

• Maintain:
  Process specs, Control plans (OCAPs), SOPs, and ensure proper documentation of changes and results

Cross-Functional Collaboration

• Interface with:
  Manufacturing/operations Integration teams, Support NPI, and process transfers under guidance

Required Qualifications

• Bachelor’s degree in:
  Chemical Engineering, Materials Science, Electrical Engineering, or related field
• 5+ years semiconductor experience, with exposure to CMP processes
• Working knowledge of: CMP fundamentals (slurry, pad, conditioning), Defect mechanisms
• Experience with: SPC tools and data analysis.
• Exposure CMP tools (Applied Materials Reflexion LK CMP and Ebara F-REX-300 preferred)

Salary:onsemi is excited to share the base salary range for this position is $101,700 to $172,700 exclusive of fringe benefits or potential bonuses.

The final pay rate for the successful candidate will depend on geographic location, skills, education, experience, and/or consideration of the internal equity of our current team members. We also offer a competitive benefits package.

onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world.

More details about our company benefits can be found here:

We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work.
onsemi
is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact  for assistance.

• Job Identification 2505272
• Job Category Engineering
• Posting Date 04/21/2026, 02:16 PM
• Degree Level Bachelors
• Job Schedule Full time
• Job Shift Day
• Locations Building 308 Receiving, Hopewell Junction, NY, 12533, US