Device Engineer, 2D Semiconductors

NEXSTROM PTE. LTD.; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A semiconductor technology company is seeking a Device Engineer to work on 2D semiconductor devices. The candidate will be responsible for device fabrication, electrical characterization, and designing basic logic circuits. A Bachelor's degree in Electrical Engineering or a related field and at least 2 years of experience in semiconductor fabrication are required. Ideal candidates will have strong analytical skills and experience with cleanroom processes. This role is fast-paced with an emphasis on technology validation and commercialization.

Qualifications

• At least 2 years of hands-on experience in semiconductor device fabrication and characterization.
• Solid understanding of FET operation and CMOS logic fundamentals.
• Familiarity with cleanroom processes including deposition and etching.

Responsibilities

• Fabricate and characterize 2D semiconductor devices.
• Design and evaluate basic logic circuits.
• Document process flows and test results.

Skills

Electrical characterization

Semiconductor device fabrication

Data analysis

Cleanroom fabrication

Education

Bachelor's degree in Electrical Engineering or related field

Tools

Probe stations

Parameter analyzers (Keysight)

Python

MATLAB

Job description

We are building a next-generation platform for two-dimensional (2D) semiconductors targeting advanced logic and memory applications. Our work spans wafer-scale materials synthesis, device fabrication, and circuit-level validation to demonstrate manufacturable and competitive performance beyond silicon scaling limits.

As a Device Engineer, you will be responsible for translating wafer-scale 2D materials into functional electronic devices. You will play a key role in device fabrication, electrical characterization, and performance benchmarking, working closely with materials and process teams to establish reliable, scalable device flows. This position is hands‑on, fast‑paced, and impact-driven, with direct influence on technology validation and downstream commercialization.

Responsibilities

Device Fabrication & Characterization

1. Fabricate 2D semiconductor devices (nFETs, pFETs) using wafer-scale or chip-scale processes
2. Optimize device performance metrics including mobility, contact resistance, SS, hysteresis, and variability
3. Perform electrical characterization (DC, pulsed, temperature-dependent when needed)

Circuit Design & Demonstration

1. Design, fabricate, and evaluate basic logic and sequential circuits, such as inverters, NAND / NOR gates, ring oscillators, D flip-flops, and simple latches
2. Develop complementary (n/p) device integration strategies for functional logic
3. Analyze circuit-level metrics such as gain, noise margin, propagation delay, power consumption, and yield
4. Correlate circuit performance with device-level non-idealities (Vth mismatch, hysteresis, contact asymmetry)

Process & Integration

1. Work closely with materials and process teams to co-optimize growth, interfaces, and device stacks
2. Support integration of ultrathin dielectrics, contacts, and BEOL-compatible processes
3. Assist in defining scalable device–circuit test structures

Documentation & Technology Validation

1. Document device and circuit process flows, test results, and failure analysis
2. Prepare data packages for internal reviews, collaborators, and potential customers
3. Contribute to technical publications, patent filings, and demo presentations

Minimum Qualifications

• Bachelor’s degree or above in Electrical Engineering, Materials Science, Applied Physics, or a related field
• At least 2 years of hands‑on experience in semiconductor device fabrication and characterization
• Solid understanding of FET operation, CMOS logic fundamentals, and basic digital circuits
• Experience with cleanroom fabrication (EBL or photolithography, deposition, etching, metallization)
• Familiarity with electrical characterization tools (probe stations, parameter analyzers such as Keysight)
• Ability to analyze device and circuit data quantitatively and systematically

Preferred Qualifications

• Master’s or PhD degree with a focus on devices, circuits, or nanoelectronics
• Prior experience demonstrating logic circuits using emerging materials (2D, oxide, organic, etc.)
• Knowledge of contact engineering, high-k/ultrathin dielectrics, or BEOL-compatible processes
• Familiarity with CMOS-style complementary logic using non‑ideal transistors
• Proficiency in data analysis and scripting (Python, MATLAB, Origin, etc.)
• Experience working in a startup, industrial R&D lab, or any other fast‑iteration environment
• Strong cross‑disciplinary communication skills (materials ↔ devices ↔ circuits)

What this Role is NOT

• Not a pure IC design or RTL role
• Not large-scale digital backend or layout-heavy CMOS
• Focus is on small-to-medium-scale functional circuit demonstrations as technology proof points