qc3QC3 is a High Resolution XRD (HRXRD) system for epilayers (thin films). It is designed for high-throughput, mass production operation.

  • Highest throughput in the market
  • Uses world-leading Jordan Valley RADS Software for auto-analysis and feedback to production
  • Rich & flexible in features, yet user-friendly and easy to operate
  • Robot support (optional)
  • Targets production fabs of LED and Epilayers wafers
  • Supports multi-wafer configuration in a single sample-plate
  • High up time & reliability


Please use this form to request product brochures




The QC3 is the latest model in the long-established and well-proven QC range of High Resolution X-ray diffractometers, with over a 20-year pedigree, and hundreds in use around the world in compound semiconductor and silicon-germanium research and manufacturing facilities. It is a high resolution X-ray diffraction tool that is ideal for semiconductor development and quality control. It is used for the measurement of composition and thickness in epitaxial layers of almost any material. The system uses standard sealed tube optics, combined with a variety of beam conditioning crystals that can be optimized to give the highest combination of resolution and intensity for each application. The QC3 offers true automated operation, with straight-forward horizontal sample mounting, and fully automated alignment, measurements, and data analysis. Data analysis can be performed automatically, or offline using our popular RADS software. The sample stage has a full 300mm of travel, allowing for measurements of large wafers, or several smaller wafers simultaneously. An optional robot handler is available for automated loading and measurement from cassette. It is the ideal tool for routine analysis of semiconductor substrates, epilayer structures and processed device wafers for all compound semiconductor materials.


The QC3 is suitable for most semiconductor-based structures and device structures, including, but not limited to:

  • GaN-based LEDs and laser structures
  • III-V, II-VI and IV-IV based materials (HEMTs, HBTs...)
  • Si based materials
  • SiGe-based HBT structures
  • Single and multilayer epitaxial films
  • MQW structures
  • Superlattice structures


  • High resolution X-ray rocking curves
  • Symmetric, asymmetric and quasi-forbidden 002 reflection capability
  • Layer relaxation, tilt and thickness determination
  • Triple axis analyzer measurements and reciprocal space maps
  • Area uniformity plots
  • Substrate perfection and offcut measurements



  • Compact, high-resolution diffractometer
  • Horizontal specimen mounting on detachable holders - up to 300mm sample size
  • Full 300mm scanning capability with sample plates with multiple wafer locations
  • Pre-aligned beam conditioners available for materials with low dislocation content, such as GaAs, InP, and Si based compounds, and materials with higher defect densities, such as GaN and ZnO.
  • EDRc Dynamic Range X-ray detector
  • Triple Axis as standard
  • Robot loading option available


  • Fully contained within a free-standing steel enclosure
  • Easy sample access
  • Full X-ray safety interlocks, fail-safe shutter and warning lamps
  • Size (approx): 1m x 1m