Algotale Inc. is recruiting for a semiconductor engineering services organization supporting an advanced silicon program at a leading technology company in the San Francisco Bay Area.
We are looking for an experienced Senior RF / Electromagnetic Modeling Engineer with expertise in on-chip passive component modelling, electromagnetic simulation and RF integrated circuit design.
This opportunity is suited to professionals experienced in designing and modelling inductors, capacitors, transformers and LC tanks used in RF circuits, oscillators, phase-locked loops and other high-frequency applications.
The end-client details are confidential and will be disclosed to shortlisted candidates during the client interview stage.
About the Role
The successful candidate will be responsible for developing accurate electromagnetic models of on-chip passive components and validating their performance for semiconductor circuit design.
The role involves working closely with RFIC and circuit design teams to ensure that electromagnetic models accurately represent physical layout effects and can be reliably used in circuit simulations.
Responsibilities
Develop and simulate electromagnetic models of on-chip passive components, including spiral inductors, transformers, baluns, T-coils, varactors and MOM/MIM capacitors.
Perform simulations using Ansys HFSS and IC-focused electromagnetic solvers such as Cadence EMX, Ansys RaptorX, Keysight Momentum, Sonnet or Clarity 3D.
Extract inductance, quality factor (Q), self-resonant frequency, coupling coefficients and S-parameters across frequency ranges.
Develop lumped pi-models and broadband models for circuit simulation.
Collaborate with circuit designers working on LC-VCOs, PLLs, LNAs and resonators.
Analyze the impact of tank Q on phase noise and capacitor banks on tuning range.
Model electromagnetic coupling and parasitic effects arising from routing, metal fill, seal rings, substrates and package or bump structures.
Correlate simulation models with measured silicon data using vector network analyzers and probe-station measurements, including de-embedding.
Configure metal-stack technology files and automate parameter sweeps using Python or similar scripting tools.
Required Experience
Master's or PhD degree in Electrical Engineering, specializing in RF, microwave engineering or electromagnetics, or a Bachelor's degree with equivalent relevant industry experience.
Minimum 5 years of relevant industry experience.
Hands-on experience with Ansys HFSS for on-chip integrated circuit structures.
Experience with at least one IC-focused electromagnetic solver, such as Cadence EMX, Ansys RaptorX, Keysight Momentum, Sonnet or Clarity 3D.
Strong understanding of LC tanks and their applications in oscillators, PLLs, matching networks and low-noise amplifiers.
Experience integrating electromagnetic models into circuit simulations using Cadence Virtuoso and Spectre/SpectreRF or Keysight ADS.
Strong knowledge of S-parameters, Smith charts and de-embedding techniques.
Preferred Skills
Experience with CMOS, FinFET or SiGe semiconductor processes.
Experience working at mmWave frequencies, particularly 28 GHz and above.
Foundry or PDK experience involving inductor and capacitor modelling.
Laboratory measurement experience using vector network analyzers and probe stations.
Experience with cryogenic RF electronics or superconducting resonator modelling.
Compensation and Employment Details
Compensation: Competitive and commensurate with the candidates experience, technical expertise, and qualifications. Further details will be discussed during the recruitment process
Work arrangement: On-site / Hybrid in the Mountain View, California area
Candidates must currently be based in the United States and authorized to work in the United States.
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