Semtech
Backend Process Engineer
United States · Work style not stated · Full time
Posted over 6 months ago: check it’s still open
Apply on the employer’s site ↗See how well you match this job
You apply directly with the employer. ROLIVA does not submit applications from this page and is not the employer.
About the role
Description from the employer’s posting. Check the employer’s page for the current version.
- EmployerSemtech
- LocationUnited States
- Work styleWork style not stated
- Employment typeFull time
- Employer posted
Location:Alhambra, CA
Position Summary:The Backend Process Engineer –InPWafer Fab positionis responsible fordevelopment, optimization, and manufacturing support of backend wafer fabrication processes for Indium Phosphide (InP)–based photonic devices, including DFB lasers, Semiconductor Optical Amplifiers (SOAs), and Gain Chip products. This role provides technical ownership of critical backend modules including wafer lapping/thinning, n-side metallization, rapid thermal annealing (RTA),andautomated optical inspection (AOI). The position also supports singulation, optical coatings, reliability readiness, and packaging interfaces, with a strong focus on yield, defect reduction, and manufacturing stability.
Responsibilities:
Backend Process Ownership and Optimization (35%):
Own andoptimizebackend waferfabprocesses including lapping/thinning, n-side metallization, and RTA
Show full description
Establish robust process windows, recipes, and control limits for backend modules
Maintain stable manufacturing performance through continuous monitoring and improvement
Yield Improvement, Defect Reduction, and AOI Control (25%):
Own and maintain AOI processes for backend defect detection and yield monitoring
Drive singulation yield improvement and defect reduction through data analysis and root-cause investigations
Analyze inline and post-process data toidentifytrends and systematic issues
Implement corrective and preventive actions and verify effectiveness
Singulation,OpticalCoatings, and Packaging Interface Support (20%):
Support cleaving, dicing, and singulation processes to ensure device integrity
Provide process engineering support for AR/HR optical coatings and vendor qualifications
Collaborate with packaging, device, and reliability teams to ensure packaging readiness
New Product Introduction and Technology Support (10%):
Support new product introduction (NPI), process transfers, and technology changes
Evaluate backend process risks associated withnew designs, materials, and device structures
Documentation, Process Control, and Manufacturing Support (10%)
Author andmaintainSOPs, travelers, process specifications, and control plans
Define SPC metrics and control strategies for backend processes
Provide hands-on manufacturing and troubleshooting support as needed
Minimum Qualifications:
Bachelor’s degree or higher in Chemical Engineering, Materials Science, Electrical Engineering, Physics, or a related field
Minimum of 3+ years of experience inbackend semiconductor processing
Hands-on experience with lapping/thinning, metallization, and thermal processes
Understanding ofInP-based or III-V compound semiconductor wafer fabrication processes
Experience with AOI systems, yield analysis, and data-driven process improvement
Strong understanding of singulation, packaging interfaces, and reliability requirements
Proficiencyin SPC, DOE, and statistical analysis
Ability to work across cross-functional manufacturing and engineering teams
Preferred experience withInPor III-V optoelectronic devices
Familiarity with AR/HR optical coating processes
Experience supporting high-mix, low-volume manufacturing environments preferred
The intent of this job description is to describe the major duties and responsibilities performed by incumbents of this job. Incumbents maybe requiredto perform job-related tasks other than those specifically included in this description.
All duties and responsibilities are essentialjobfunctions and requirements and are subject topossible modificationtoreasonably accommodateindividuals with disabilities.
A reasonable estimate of the pay range for this position is $100,000 - $135,000. There are several factors taken into consideration indeterminingbase salary, including but not limited to: job-related qualifications, skills,educationand experience, as well as job location and the value of other elements of an employee’s total compensation package.
#LI-Onsite
Check your resume against this job Free, no sign-up. Nothing you paste is stored.
Staying safe while you apply
- Never pay to apply, interview or accept an offer. ROLIVA never asks you for payment to apply to a job.
- Apply only through the official “Apply on the employer’s site” button, on the employer’s own site, and check that a recruiter’s email uses that employer’s own domain rather than a free email address.
- Be cautious of an offer made with no real interview, or pressure to decide quickly or share financial details early.
Does something look wrong with this listing? Use “Report broken link” in the role details, or read ROLIVA’s full job-safety guidance ↗.
Preparing for this role with ROLIVA
- Check the fit.
Compare the requirements with the experience you have confirmed, including gaps.
- Prepare honestly.
Build interview stories and application drafts from your own evidence.
- Keep track.
Save the role and record your own application status and follow-ups.
At a glance
- Employment typeFull time
- Employer posted
- Added to ROLIVA
- Last checked