Downscaling Transistors via Cascade Field Effect (CasFET)

  • Technology Readiness Level: 4


Researchers at Purdue University have developed a cascade field effect transistor technology (CasFET), which yields a more efficient transistor design by downscaling the physical footprint and energy consumption requirements. Transistors process significant amounts of energy and power all the logic devices. However, at the nanoscale they have material and energy dissipation challenges that have slowed down the push for more compact transistor designs. With increasing demand for semiconductors and power transistors, it is important to sustain that need in an efficient and energy-conscious manner. Purdue researchers developed a Cascade Field Effect Transistor (CasFET) which features a cascade-based switching system. The switching between cascade states mimics the effects of quantum cascade lasers and does not require band-to-band tunneling, like other transistors. These semiconductor design transistors not only use less power but feature faster switching speeds with lower applied voltages, displaying potential to sustainably power future CPU generations with greater transistor densities.


– No restriction to TFET devices
– Reduced energy consumption

– Reduced transistor size

– Faster switching speeds with lower applied voltages
– Flexible choice of materials
– Flexible voltage settings

Potential Applications

– Computing

– Semiconductor Design
– Electronics

Contact Information

Name: Dipak Narula


Phone: 765-588-1062