Superconducting Materials
=========================


       
      

**Chip Synthesis**

 

 
        This page explains the material families that a superconducting quantum-chip design flow
        must describe before layout, fabrication, HFSS simulation, Q3D extraction, and EPR/scQubits
        analysis. 

 **Learning goal** 

Superconducting quantum circuits require carefully selected materials across three
          functional layers: Each slide covers one material: Role · Properties · Critical
          Temperature · Importance for qubit coherence

 **Superconducting Metals** 

            Aluminum (Al), Niobium (Nb), Molybdenum Rhenium (MoRe), and Indium (In). These materials
            form qubit electrodes, resonators, wiring, and flip-chip interconnects.
          

 **Superconducting Compounds** 

            Titanium Nitride (TiN), Niobium Nitride (NbN), and Niobium Titanium Nitride (NbTiN).
            These support high kinetic inductance, photon detection, high-Q microwave circuits, and
            magnetic-field-tolerant designs.
          

 **Substrates and Barriers** 

            Silicon (Si), Sapphire (Al2O3), and Aluminum Oxide (AlOx). These define the chip
            foundation and the Josephson junction tunnel barrier that creates qubit nonlinearity.

.. toctree::
   :maxdepth: 1

   material-aluminum-al
   material-niobium-nb
   material-silicon-si-substrate
   material-sapphire-al2o3-substrate
   material-titanium-nitride-tin
   material-niobium-nitride-nbn
   material-niobium-titanium-nitride-nbtin
   material-aluminum-oxide-alox-tunnel-barrier
   material-molybdenum-rhenium-more
   material-indium-in-bump-bonds
   materials-summary