Intellectual Property

Quantum Semi has an impressive patent portfolio: 27 U.S. patents and 25 foreign patents in France, Germany, China and Japan, with numerous additional filings underway.


The Quantum Semi patent portfolio covers a number of different areas relevant to:

  • Avalanche photodiodes
  • Pixel architectures
  • Achieving Noiseless Gain in photodiodes
  • Analog-to-digital conversion (ADC) and imager circuitry
  • Devices for near, mid and far-infrared imaging
  • Light waveguides for sub-wavelength pixels
  • Optical format and aspect ratios: cameras and displays
  • Advanced CMOS
  • Silicon Quantum Wells
  • Image Sensor System Architecture
  • Light Sensing and Light Emission from APDs
  • SiGe and SiGeC Layers and Specifications
  • Group IV Superlattices
  • Superlattices with topological properties for quantum computing applications


Number of Publications


U.S. Patents Granted


Foreign Patents Granted