Technician 3, Production
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Responsibilities
- DFB Grating Fabrication and Characterization (35%):
- Perform grating fabrication for DFB laser structures using holographic lithography methods.
- Set up and align holographic exposure systems to generate precise grating patterns.
- Characterize grating pitch, depth, and uniformity using Atomic Force Microscopy (AFM).
- Analyze grating profile data and ensure process consistency and repeatability.
- Maintain and calibrate holographic exposure and AFM metrology systems.
- Troubleshoot grating-related defects and process variations.
- Metallization Process (20%):
- Operate metal deposition tools including e-beam evaporation systems.
- Execute metal stack deposition for p-contacts, n-contacts, and device interconnects.
- Perform metal lift-off processes and inspect pattern quality.
- Monitor film thickness and deposition uniformity.
- Maintain process documentation and support troubleshooting of metallization-related issues.
- Wet and Dry Etch Processing (20%):
- Perform wet chemical etching for InP and related III-V semiconductor materials.
- Operate dry etch systems such as RIE or ICP tools for pattern transfer and device definition.
- Monitor etch rates, profiles, and uniformity.
- Maintain chemical safety procedures and proper handling of process gases and chemicals.
- Support optimization and troubleshooting of etch processes.
- Photolithography Process and SEM Support (15%):
- Support photolithography processes including resist coating, exposure, and development.
- Assist in mask alignment and lithography process setup for device fabrication.
- Operate Scanning Electron Microscopy (SEM) for pattern inspection, feature verification, and process qualification.
- Perform basic inspection and process monitoring to ensure pattern quality.
- Work closely with process engineers to maintain stable lithography operations.
- Process Module Ownership and Fab Support (10%):
- Own and manage assigned process modules within the wafer fabrication line.
- Monitor tool performance, uptime, and process stability.
- Assist with preventive maintenance and troubleshooting equipment.
- Maintain process documentation and support continuous improvement initiatives.
Requirements
- Associate's degree preferred.
- Minimum 10 years of hands-on experience in InP wafer fabrication processing.
- Direct experience with DFB laser and gain chip wafer fabrication in a compound semiconductor manufacturing environment.
- Strong expertise in InP-based III-V semiconductor fabrication processes.
- Hands-on experience with DFB grating fabrication using holographic lithography techniques.
- Proficiency in Atomic Force Microscopy (AFM) for grating and surface characterization.
- Experience with e-beam evaporation and metallization lift-off processes.
- Strong knowledge of wet chemical etching and plasma dry etching of InP materials.
- Ability to manage and operate multiple wafer fab process modules.
- Strong troubleshooting and problem-solving skills in a cleanroom environment.
- Familiarity with semiconductor manufacturing documentation, safety practices, and process control.
- 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.
- #LI-Onsite
Additional Information
Location: Alhambra, CA (Onsite) Position Summary: The Senior InP Wafer Fab Technician is responsible for executing and maintaining wafer fabrication processes for InP-based photonic devices, including DFB lasers and gain chips. This role requires extensive hands-on experience in III-V semiconductor processing, particularly holographic grating fabrication, metallization, and etching processes for InP materials. The technician will support multiple fabrication modules within the wafer fabrication line and play a key role in maintaining stable process operation, repeatability, and manufacturing yield. This position requires strong technical expertise, problem-solving capability, and the ability to work independently in a compound semiconductor cleanroom environment.
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