Ion Implant Process Engineer Semiconductor Wafer Fabrication

Ion Implant Process Engineer Semiconductor Wafer Fabrication

Location: Ahmedabad, Gujarat, India

Work Mode: Onsite

Experience: 6 -15 Years

Role Overview

We are seeking an experienced Ion Implant Process Engineer to develop, optimize, qualify, and sustain ion implantation processes within an advanced semiconductor wafer fabrication facility. This role is responsible for establishing highly controlled dopant implantation processes that meet device performance, junction depth, uniformity, yield, and reliability requirements while supporting advanced CMOS technology and high-volume manufacturing.

The successful candidate will work closely with Process Integration, Diffusion, Lithography, Thin Film, Etch, CMP, Device Engineering, Yield Engineering, Equipment Engineering, Manufacturing, Metrology, and Quality teams to optimize implant processes, improve electrical performance, reduce process variation, and support technology ramp-up.

Candidates should possess strong expertise in ion implantation, beam tuning, dopant engineering, implant damage control, process characterization, Statistical Process Control (SPC), and semiconductor manufacturing.

Role Objectives

• Develop robust ion implantation processes for advanced semiconductor manufacturing.
• Achieve excellent dopant profile accuracy and implantation uniformity.
• Improve device performance through optimized implantation strategies.
• Support technology transfer and production ramp.
• Deliver stable, repeatable, and scalable implant manufacturing processes.

Key Responsibilities

• Develop, optimize, and sustain ion implantation processes for semiconductor wafer fabrication.
• Establish process windows for NMOS, PMOS, well, source/drain, halo, extension, threshold adjustment, and channel implantation.
• Optimize implantation energy, dose, beam current, tilt angle, twist angle, wafer temperature, and process recipes.
• Develop implant strategies to achieve target junction depth, sheet resistance, dopant concentration, and electrical characteristics.
• Evaluate implant damage, crystal defects, channeling effects, and amorphization.
• Collaborate with Diffusion Process Engineering to optimize dopant activation and annealing.
• Perform Design of Experiments (DOE) to optimize implant parameters and process capability.
• Analyze implant metrology, electrical test data, SIMS profiles, sheet resistance measurements, and yield trends.
• Support Process Integration activities across Lithography, Thin Film, Diffusion, Etch, and CMP modules.
• Collaborate with Equipment Engineering to improve implanter uptime, beam stability, repeatability, and productivity.
• Qualify new implant recipes, beam configurations, process gases, and consumables.
• Support installation, qualification, and acceptance testing of ion implantation equipment.
• Utilize Statistical Process Control (SPC) methodologies to monitor process stability.
• Perform root cause analysis for process excursions and yield losses.
• Support Advanced Process Control (APC) implementation.
• Develop engineering specifications, process documentation, and standard operating procedures.
• Participate in technology transfer and New Product Introduction (NPI) activities.
• Improve manufacturing yield, throughput, cycle time, and process capability.
• Ensure compliance with semiconductor quality systems, cleanroom protocols, radiation safety, and EHS standards.
• Drive Lean Manufacturing and continuous improvement initiatives.

Key Responsibilities During Fab Startup

• Support installation and qualification of ion implantation systems.
• Develop baseline implant recipes for technology qualification.
• Establish beam tuning, calibration, and process certification procedures.
• Define implant process specifications and control plans.
• Qualify implant consumables and specialty gases.
• Support engineering lots, pilot production, and technology transfer.
• Develop manufacturing documentation and operating procedures.
• Train manufacturing teams on implant process operations.
• Improve process capability before production ramp.
• Support high-volume manufacturing readiness.

Required Qualifications

• Bachelors or Masters degree in Electronics Engineering, Electrical Engineering, Physics, Materials Science, Chemical Engineering, Semiconductor Engineering, or related discipline.
• 6- 15 years of semiconductor wafer fabrication experience.
• Strong hands-on expertise in ion implantation processes.
• Experience supporting advanced semiconductor manufacturing.
• Proven expertise in process optimization, technology transfer, and yield improvement.
• Excellent analytical, troubleshooting, and communication skills.

Technical Skills Semiconductor Manufacturing

• Semiconductor Wafer Fabrication
• Front-End Manufacturing (FEOL)
• CMOS Process Technology
• High Volume Manufacturing (HVM)
• Semiconductor Process Development
• Technology Transfer
• Process Qualification
• New Product Introduction (NPI)

Ion Implant Process Expertise

• Ion Implantation
• Dopant Engineering
• Source/Drain Implant
• Well Implant
• Halo Implant
• Pocket Implant
• Extension Implant
• Threshold Voltage Adjustment Implant
• High Energy Implant
• Medium Current Implant
• High Current Implant
• Beam Tuning
• Beam Alignment
• Implant Dose Control
• Implant Energy Optimization
• Junction Engineering
• Channeling Control
• Crystal Damage Analysis
• Implant Uniformity Optimization
• Wafer Charging Control

Dopant Materials

• Boron (B)
• Phosphorus (P)
• Arsenic (As)
• BF
• Antimony (Sb)
• Germanium (Ge) Pre-Amorphization Implant
• Carbon Implantation
• Specialty Dopant Species

Implant Equipment

Experience With Leading Semiconductor Ion Implantation Systems Such As

• Applied Materials Varian VIISta Series
• Axcelis GSD Series
• Axcelis Purion Series
• Nissin Ion Implanters
• Sumitomo Heavy Industries Implant Systems

Process Engineering

• Design of Experiments (DOE)
• Statistical Process Control (SPC)
• Process Capability (Cp/Cpk)
• Root Cause Analysis
• FMEA
• Yield Improvement
• Process Characterization
• Implant Profile Optimization
• Defect Reduction
• Process Window Development

Metrology

• SIMS (Secondary Ion Mass Spectrometry)
• Four-Point Probe
• Sheet Resistance Measurement
• Junction Depth Measurement
• Electrical Parametric Testing
• Defect Inspection
• Particle Inspection
• Optical Inspection
• Surface Profilometry

Data Analysis

• JMP
• Python
• MATLAB
• SQL
• Microsoft Excel
• Statistical Analysis
• Data Visualization

Cross Functional Collaboration

The Ion Implant Process Engineer Will Work Closely With

• Process Integration Engineering
• Diffusion Engineering
• Thin Film Engineering
• Lithography Engineering
• Etch Engineering
• CMP Engineering
• Device Engineering
• Equipment Engineering
• Yield Engineering
• Manufacturing Engineering
• Metrology Engineering
• Product Engineering
• Failure Analysis
• Quality Engineering
• Facilities Engineering
• Automation Engineering

Preferred Industry Experience

Experience In Semiconductor Manufacturing For

• Logic Devices
• Memory Devices
• Foundry Manufacturing
• Analog & Mixed-Signal ICs
• Power Semiconductor Devices
• RF Technologies
• Advanced CMOS Manufacturing

Candidates with experience in greenfield semiconductor fab startups, advanced technology nodes (28nm and below), FinFET technologies, or high-volume manufacturing environments are highly preferred.

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