Products & Services

With more than 10 years of experience, Winchester Technologies provides extensive services to meet the industry’s growing needs in areas such as the design, fabrication, and characterization of different RF/microwave magnetic materials, devices, and subsystems. The following is a list of testing, prototyping, and characterization services, as well as a list of sample products.

Highlight Technologies

  • NEMS Magnetoelectric Antennas for RF, Microwave, and Bio-medical applications
    • Frequency coverage from MHz to GHz (VHF and UHF)
    • 1 to 2 order size reduction
    • Ground plane immunity from metallic surface or the human body
    • Integrated capability to CMOS technology
    • Highlight news on NATURE and SCIENCE
    • First Prize: Nasa Tech Briefs – Create the Future Design Contest (In electronics/sensors/IoT category with over 800 entries from 60 countries)
  • Ultra-compact Very Low Frequency (VLF) ME Antenna Communication Systems
    • 1 to 2 order size reduction
    • Ground plane immunity from metallic surface or the human body
    • For harsh environment such as Underground, Underwater, and Hypersonic Flight
  • Low-Temperature (<100C) Deposition of Ferrite Films for RF, Microwave, and Power Applications
    • Frequency covered up to 3 GHz
    • Maximum size: 24 inches diameter (Spin-spray), 2 feet × 3 feet (Linear-spray)
    • Thickness: Up to 10 microns on PCB, Si, Ceramics, glass, transparencies, Mica, etc
    • Compositions: (Ni, Zn)-Ferrite, (Ni, Co, Zn)-ferrite, (Mn, Zn)-Ferrite, etc.
    • Brochure with detail information
  • Ultra-sensitive NEMS Magnetoelectric Sensor for Pico-Tesla DC Magnetic Field Detection
    • Ultra-miniaturized, power efficient, high-sensitivity, and high-resolution
    • Integrated capability to CMOS technology


  • Metallic films
  • Magnetic films
  • Ferrite films
  • Integrated antennas
  • Tunable phase shifters
  • Wave absorbers
  • Tunable band-pass filters
  • Tunable band-stop filters
  • Tunable inductors and transformers
  • Energy-harvesting devices and systems
  • Magnetostriction tester for thin film and bulk magnetic materials
  • B-H looper for fast magnetic hysteresis measurements
  • Permeameters for measuring permeability between 1MHz ~ 18 GHz
  • Biomedical sensors and sensing systems

Materials Growth

  • Automated 6-target physical vapor deposition (PVD)
  • Spin-spray and linear-spray of high-quality thin-film ferrite
  • Electrochemical plating
  • Sol-gel processing
  • Magnetic annealing (Brochure)

PCB Prototyping Services

PCB prototyping (designed and finished in a few hours) Applications range from analog to RF. Machinery is equipped with a high-speed spindle and ultra-fine resolution (0.5μm).

Major Characterization Services

  • Radiant ferroelectric testing
  • Broadband magnetoelectric testing
  • Narrowband magnetoelectric testing
  • Magnetostriction testing
  • Broadband 0.5 ~ 15 GHz frequency-sweep permeameter
  • Magnetic domain observation by magneto-optical Kerr imaging
  • BH Loop testing
  • Lakeshore vibrating sample magnetometer (VSM)
  • X-ray diffraction (XRD)
  • Scanning electron microscopy (SEM)

Lab Machinery and Equipment

RF Mag 26 – Permeameter / FMR Measurement System