Senior PECVD Process Engineer - Sherman, TX, United States
Originally posted 15 September 2026 by the employer.
Serve as the process owner for PECVD, developing, sustaining, and optimizing processes for GaAs and InP device manufacturing.
About the role
Serve as the process owner for PECVD, developing, sustaining, and optimizing processes for GaAs and InP device manufacturing.
What you'll do
- Serve as the process owner for PECVD, developing, sustaining, and optimizing processes for GaAs and InP device manufacturing.
- Conduct process characterization and troubleshooting, working cross-functionally with R&D, production, and equipment teams.
- Apply Statistical Process Control (SPC) and Design of Experiments (DOE) to monitor and improve process stability and yield.
- Lead troubleshooting efforts for process deviations, equipment issues, and yield excursions.
- Perform failure analysis and defect characterization to identify root causes of process variation.
- Develop and implement process improvements to increase yield, improve film quality, and reduce defectivity.
What you'll need
- Bachelor’s or Master’s degree in Materials Science, Chemical Engineering, Electrical Engineering, or related field.
- 5+ years of experience in semiconductor PECVD or thin films process engineering.
- Strong understanding of SiNx, SiOx, and other PECVD films, including the relationship between process parameters, gas chemistry, plasma conditions, chamber conditioning, clean cycles, and resulting film properties.
- Experience with thin-film metrology including ellipsometry, reflectometry, profilometry, FTIR, stress/bow measurement, SEM.
- Experience in optimizing film thickness, RI, deposition rate, uniformity, stress, and film composition.
- Solid background in SPC, Gage R&R, and DOE.
Nice to have
- Experience with MES systems (e.g., Camstar).
- Direct GaAs and/or InP process experience.
- Knowledge of additional fab areas such as photolithography, etch, or metals.
- Familiarity with device-level impacts of film properties and process integration.
Skills: PECVD, thin films, GaAs, InP, process optimization
This role has been open 29 days — well below the 61-day median for Process Engineering roles.
Process Engineering · Deposition Process
|
Open roles in category
65
|
Median days open
61 d
|
Median salary
$145k
|
See the full market breakdown ▾Category comparison, skills in demand, and who else is hiring
| Metric | Coherent Corp | All employers we track in this specialty (65 roles · 22 employers) |
|---|---|---|
| Open roles in this specialty | 1 | 65 |
| Open roles in the wider Process, Fab & Equipment family | 136 | 9896 · 109 employers |
| Median days open | 29 d | 61 d (−32 d vs this employer) |
| Median salary (USD postings) | — | $145k |
Skills observed across this category: PECVD, thin films, GaAs, InP, process optimization
Who's hiring in this category
- Micron Technology · 18 open roles · median 26 d
- ASM International · 10 open roles · median 57 d
- Lam Research · 9 open roles · median 79 d
- Applied Materials · 3 open roles · median 17 d
- STMicroelectronics · 3 open roles · median 44 d
- Texas Instruments · 2 open roles · median 36 d
How we counted: 65 open Process Engineering (Deposition Process) roles from 22 employers tracked in the SemiconductorJobs index, counted 15 Oct 2026. Specialty figures count only roles carrying this exact specialty label, so an employer's related work in neighbouring specialties is not included there — it is counted in the wider Process, Fab & Equipment family row. Figures refresh nightly.