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Salary
≈ $49k – $87k per year (Estimated)
Location
In office (Alhambra)
Seniority
Middle · 3+ years exp
Visa
H-1B filings in 12 months: 6 · green card filings: 3
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 6, 2026. First seen by Alion on Sep 3, 2026. Semtech scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Semtech designs analog and mixed-signal semiconductors for infrastructure and internet of things. Its LoRa radio technology underpins many long-range low-power sensor networks. The company also supplies signal integrity chips for data centres.

Location: Alhambra, CA

Position Summary: The MOCVD Operator position is responsible for daily MOCVD operation, material measurement and data record. This position will also involve equipment maintenance activities, environmental sustaining and strictly complying with the clean room rules. The role requires teamwork, efficiency orientation, quality pursuit, and hardworking

Responsibilities:

MOCVD Daily Operations:

  • Check MOCVD room temperature, MO chiller temperature, pressure of H2, N2, hydride gas, MO consumption. Make sure everything is normal before MOCVD growth
  • Execute wafer etching cleaning, loading, unloading, recipe loading/running,
  • Perform characterization with golden wafer, and enter calibration data to the metrology SPC sheet
  • Perform characterization with epi wafer: PL mapping, XRD rocking curve, ECV doping profiling
  • Input MOCVD process, equipment parameters, wafer characterization results on daily schedule sheet
  • Record re-growth information, sign, date the traveler
  • Inspect wafer surface, record particle count
  • Follow clean room rule, report any process, and equipment issue to your supervisor on time
  • Provide good suggestions on the improvement of process quality and working efficiency

MOCVD Process Sustaining and Equipment Maintenance:

  • Update inventory of InP substrate, base wafer, and chemicals
  • Engage MO bubbler change, process gas cylinder change, hardware replacement such as pump, MFC, PC, valve, etc.
  • Maintenance working environment cleanness, clean wet bench, workstation, desktop, organize maintenance tools, spare parts in order
  • Clean and suck load lock, chamber view port, gate valve periodically to reduce particle defect of the epi wafer
  • Support engineer to refurbish MOCVD chamber, change particle filter, P4 trap, and exhaust absorber
  • Execute preventive maintenance procedures and perform basic troubleshooting

Minimum Qualifications:

  • Associate's degree in Electronics, Semiconductor Technology, or related technical field preferred; OR High school diploma with relevant technical training and certification
  • 3-5 years of hands-on experience in mechanical, electronic, semiconductor fabrication operations
  • Plentiful knowledge of cleanroom operations, safety protocols, and contamination control
  • Experience with wafer handling and high vacuum equipment maintenance
  • Strict implementation of cleanroom protocols, safety procedures, and particle contamination control
  • Excellent attention to detail and continuous pursuit of wafer operation improvement
  • Effective communication and teamwork skills in multi-shift manufacturing environment
  • Ability to work independently with limited supervision on critical wafer growth steps
  • Willingness to work night shift, weekends as required by epi growth demand
  • Physical ability to stand for extended periods, wear full cleanroom gowning, and work in controlled environment

The intent of this job description is to describe the major duties and responsibilities performed by incumbents of this job. Incumbents may be required to perform job-related tasks other than those specifically included in this description.

All duties and responsibilities are essential job functions and requirements and are subject to possible modification to reasonably accommodate individuals with disabilities.

A reasonable estimate of the pay range for this position is $24 - $35. There are several factors taken into consideration in determining base salary, including but not limited to: job-related qualifications, skills, education and experience, as well as job location and the value of other elements of an employee’s total compensation package.

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