Device & Circuit Simulation Engineer, 2D Semiconductors

NEXSTROM PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A leading semiconductor technology company in Singapore is seeking a Device & Circuit Simulation Engineer to bridge ultra-scaled device simulations and functional circuit evaluations. The role involves performing advanced simulations, conducting TCAD studies, and developing circuit-level models. Candidates should have a Master's or PhD in EE or similar fields, experience with device simulation tools, and a strong foundation in semiconductor device physics. This position offers a collaborative work environment focused on innovative technology development.

Qualifications

• Master's degree or PhD in Electrical Engineering, Materials Science, Applied Physics, or a related field.
• Strong background in semiconductor device physics, particularly short-channel and nanoscale effects.
• Hands-on experience with device simulation tools (quantum transport and/or TCAD).

Responsibilities

• Perform ultra-scaled device simulations for advanced FET architectures.
• Conduct TCAD simulations to explore device scaling and process sensitivity.
• Document simulation methodologies and collaborate with technical teams.

Skills

Semiconductor device physics

Quantum transport methods

TCAD simulation

Circuit simulation

Python

Education

Master's degree or PhD in Electrical Engineering

Tools

QuantumATK

Sentaurus

Silvaco

Job description

We are developing a next-generation 2D semiconductor technology platform targeting ultra-scaled logic and memory applications beyond conventional silicon limits. Our approach emphasizes device–circuit co-design, connecting atomistic transport physics to circuit-level performance projections.

As a Device & Circuit Simulation Engineer, you will be responsible for bridging ultra-scaled device simulations and functional circuit evaluation. You will work across multiple simulation layers, from quantum transport (NEGF) and TCAD to compact modeling and SPICE-based circuit analysis, enabling credible technology benchmarking for logic gates, SRAM, and oscillators. This role is critical for guiding device architecture decisions and demonstrating the system-level impact of emerging 2D devices.

Responsibilities

1. Perform ultra-scaled device simulations for advanced FET architectures using quantum transport methods (e.g., NEGF, QuantumATK or equivalent); atomistic or semi-classical approaches as appropriate
2. Analyze short-channel effects, contact-limited transport, electrostatics, and scattering mechanisms in 2D devices
3. Extract device trends (I–V, SS, gm, Rc, capacitance) suitable for higher-level modeling

TCAD & Technology Projection

1. Conduct TCAD simulations to explore device scaling, geometry, and process sensitivity
2. Calibrate TCAD models using inputs and trends from quantum/atomistic simulation
3. Support technology projection studies for advanced nodes (e.g., GAA, CFET, stacked or vertical architectures)

Compact Modeling & TCAD-to-SPICE Flow

1. Develop simplified compact models or parameterized abstractions from device/TCAD results
2. Enable TCAD-to-SPICE flows for circuit-level simulation and comparison
3. Validate consistency between device physics, TCAD behavior, and circuit-level response

Circuit-Level Simulation & Analysis

1. Perform circuit simulations for basic logic and memory structures, including inverters, NAND/NOR gates, ring oscillators, SRAM cells
2. Evaluate circuit-level metrics such as delay, power, noise margin, and stability
3. Correlate circuit performance with device non-idealities and variability

Documentation & Collaboration

1. Document simulation methodologies, assumptions, and limitations clearly
2. Prepare internal reports, benchmarking summaries, and projection data for technical reviews
3. Collaborate closely with materials, device fabrication, and circuit demo teams

Minimum Qualifications

• Master’s degree or PhD in Electrical Engineering, Materials Science, Applied Physics, or a related field
• Strong background in semiconductor device physics, particularly short-channel and nanoscale effects
• Hands-on experience with device simulation tools (quantum transport and/or TCAD)
• Familiarity with SPICE or TCAD-based circuit simulation and basic digital circuit operation
• Ability to translate device-level behavior into circuit-relevant metrics

Preferred Qualifications

• Experience with QuantumATK, NEGF-based simulators, or atomistic device modeling
• Experience with TCAD tools (Sentaurus, Silvaco) and scaling studies
• Exposure to compact modeling, Verilog-A, or parameterized SPICE models
• Prior work on emerging devices (2D semiconductors, GAA, CFET, beyond-CMOS concepts)
• Experience with SRAM or RO-based technology benchmarking
• Publications in IEDM, VLSI, IEEE TED, or related conferences/journals
• Proficiency in Python, MATLAB, or similar tools for data analysis and automation

What this Role is NOT

• Not a full-custom IC layout or a backend design role
• Not a sign-off CMOS design or large-scale SRAM compiler position
• Focus is on technology projection and device–circuit correlation, not product-level IC implementation