Quantum Hardware
Quantum Chip Design
Quantum hardware design, I mostly focus on quantum chip engineering. Main qubit type I use are transmons and starmons. I design quantum chips with full workflow starting from circuit simulation, chip layout, FEM simulation, GDSII preparation and visualisation. I do quantum chips in design themes or series and I do iterations of quantum chip designs
JTWPA Amplifier Design
For Amplifier design I do every type which contains Josephson Junction so, variations of TWPA and JPA. For this type I can prepare Circuit simulation regarding S11 parameters, Impedance profiles Z-parameters, currents for JJ, I use tool with built in model for JJ, for other more specialized types of sims I use Josephson circuits, I can do layout,FEM and GDSII.
RFIC HEMT Chip Design
Engineering RFIC HEMT – I can do everything from circuit simulation of elements, simulation, characterisation, and modelling of custom on chip inductors. I can do planning of selection of right PDK. Creation of right chip layout! Then exporting it to FEM and evaluating its parameters like electric fields, inductance, capacitance, s parameters. Then creating GDSII and preparing for manufacturing
mmWave & RF Engineering
mmWave & RF engineering, I always start with picking proper components, evaluating its models and datasheets, then reading application note. When Im confident with my components I do circuit simulation, then layout, later FEM simulations for some circuits, later validation of gerber files, then manufacturing, inspection, measurement and testing.
Control Electronics & PCB
PCB design of control electronics boards for quantum computing with FPGAs. I start with selection of components, reading application notes and required circuitry needed to build this design, sometimes I take inspiration from exsisting designs and extract parts I really like to design my new enhanced version. Then I do schematics accordingly and then move to creating layout. Then I send it manufacturing and do testing.
FEM & Circuit Simulations
FEM and circuit simulations. I have prefered softwares, but I can do stuff with various tools one open source and one closed source. For circuit simulations I do schematics, S parameters, Z parameters, currents, Gain plots, Smith charts. For FEM simulation I do fields, S parameters and Z parameters, Inductance extraction, capacitive extraction, EPR of substrate and other different types of simulations
Other fields of work...
Quantum materials
Quantum materials, I care about finding new materials and approaches for fabrication. I do experiment with different materilias for substrate, metal and insulating layer. For example for substrate can be Silicon or Sapphire, for metal it can be Aluminium or Niobium. I like to think about different unusual materials which just needs to be fully discovered.
QPU integration - packaging
For QPU integration and packaging, I work on projects like cavity design, packaging, wirebonding and QSoC and Flipchip design, this is very broad topic and you can cover lot of this by doing actual layout, previews or FEM simulations, for cavity design it is also little mechanical design.
Qubit modelling
For qubit modelling I can design geometry of qubit and import it into qiskit metal. From Circuit simulation I can do S parameters, Z parameters, Current simulations. When This is done I will create layout and import it into qiskit evaluate with circuitry and then do other required post layout simulation in FEM. Like EPR, electric fields, S params, Y params, Capacitance extraction.
Classical vs Quantum
Classical vs Quantum, I like to do visualisations, presentations, comparisons and comments on Classical vs Quantum. I like to evaluate its oppurtunities and talk about current technology trends and future visions. I like to highlight strong areas and weak points for future improvement.
Quantum Architecture
For Quantum Architecture and types, I do integration and whole stack design. I create animations, visualisations, I do designs, I talk about current state of the the superconducting technology and its applications and future visions. I also like to try new quantum computing types and design different topology chips
Quantum product series
Quantum chip "Rainbow" series
Production details: 4 Transmons, Separate Readout, Flux bias, 4 Coupling buses, Can run VQE
Quantum chip "Rainbow" series
Now in many colours…
Product video "Rainbow" Quantum chip
Product showcase video of Quantum chips…
Quantum chip manufactured
Quantum chip "Rainbow" series
Fabricated Quantum Chip – Coming soon – hopefully 🙂