3D TSV-Micro-Bump-RDL Interconnect Design at 60 GHz Ansys HFSS 2024 R2
Design and validate a 3D through-silicon-via, micro-bump and redistribution-line transition, concentrating on geometrical fidelity and electromagnetic boundary conditions. This video-first project page describes what to inspect in the demonstration and which modelling checks would support a reproducible technical report.
Watch the simulation or tutorial: Design and validate a 3D through-silicon-via, micro-bump and redistribution-line transition, concentrating on geometrical fidelity and electromagnetic boundary conditions.
What this 3D Semiconductor Packaging & TSV demonstration investigates
A correct port arrangement and return path matter as much as the 3D conductor geometry; unintended port coupling can distort GHz interconnect results.
Design and validate a 3D through-silicon-via, micro-bump and redistribution-line transition, concentrating on geometrical fidelity and electromagnetic boundary conditions.
Modelling environment
Ansys HFSS 2024 R2
Specific research category
3D Semiconductor Packaging & TSV
Publication context
Simulation walkthrough and methodology discussion; verify reported plots against the original model files.
Model architecture and components
- silicon substrate and insulating TSV liner
- copper via barrel, micro-bump and RDL conductor features
- return path, ground structures and port transitions
- adaptive mesh and 60 GHz radiation/conduction loss setup
Recommended simulation methodology
- Parameterize geometry dimensions, substrate permittivity/conductivity and via/bump dimensions.
- Check solid contacts, unintended overlaps, material interfaces and finite-ground reference paths.
- Choose the HFSS solution type, wave/terminal ports and frequency sweep suitable for the geometry.
- Inspect field concentration, current distribution and S-parameter convergence before making performance claims.
Scopes, plots and evidence to validate
- 3D port and via geometry validation
- surface current and electric-field distribution
- S11 and S21 versus frequency
- mesh refinement and solution convergence
- sensitivity to RDL width, via pitch and dielectric thickness
Research novelty and interpretation
Ties design tolerances and port/reference geometry directly to full-wave accuracy, rather than treating a visually plausible 3D model as verified.
When comparing control or modelling strategies, keep plant parameters, external disturbances and measurement windows identical. Any gain, loss or accuracy figure should be derived from the recorded simulation or measurement, not inferred from the project title.
Related technical article
For modelling assumptions, experiment design and thesis-ready comparison criteria, read the research guide.
Read 3D TSV–Micro-Bump–RDL Geometry and Port Design in HFSS at 60 GHzQuestions research scholars should consider
What distinguishes this project from a generic simulation?
Ties design tolerances and port/reference geometry directly to full-wave accuracy, rather than treating a visually plausible 3D model as verified.
Which plots should be included in the results section?
At minimum, report 3D port and via geometry validation, surface current and electric-field distribution and S11 and S21 versus frequency. Include baseline and sensitivity cases where applicable.
How should I verify the implementation?
Document model versions, initialization, numerical settings, units, boundary conditions and controlled comparisons. Treat any interpretation as provisional until plots and source models have been checked.
Engineering research and thesis support worldwide
Researchers in the UK, Australia, Germany, Canada, Singapore and USA can use this technical guide to define reproducible simulation objectives, benchmark cases, plots and a transparent methodology. Work should follow the academic integrity and AI-use policies of the relevant university.