W-5250S Plating System

  • Quartz crystal final frequency adjust plating system
  • Vertical evaporation and pulse width modulation of filament power results in minimal plating material usage
  • Single aperture with three axis adjustment for simple plating spot alignment
  • Precision plating to load resonant frequency using "Measured FL" method
  • No physical capacitor required
  • Over 40 different crystal parameter measurements, including DLD and Spurious
  • Optional S&A 2296 Heater Kit for plating at crystal turning point temperature
  • Proprietary magnetic wheel uses no sockets
  • Contacts directly to crystal leads
  • Standard wheel holds 50 devices and accepts HC-45 and HC-49 type packages
  • 100 Position HC-49US wheel available
  • Various HC-family, SMD and custom wheels available

SPECIFICATIONS

250B-1 Frequency Range: 15 KHz to 220 MHz
250C Frequency Range: 15 KHz to 500 MHz
Plating Performance: ± 1 ppm typical final frequency
± .1 ppm with S&A 2296 Heater Kit Option
Throughput: 500 units/hour (100 Position Wheel)
400 units/hour (50 Position Wheel)

SYSTEM CONFIGURATION

  • S&A 250B-1 or 250C Network Analyzer
  • Direct Drive Roughing Pump
  • Cryo, Diffusion or Turbo Pump
  • Computer
  • Windows® based System Software
  • S&A PCI TTL I/O Card

SCREEN FORMAT


FACILITY REQUIREMENTS

Power: 220 or 380 Volts, 3-Phase, 15 Amps
Inlet Pressures:
    Air:
    Nitrogen:
150 PSIG Maximum
90 PSIG
20 PSIG
Water Cooling (Diffusion): 0.15 GPM @ 60 - 80° F (16 - 27° C)
Dimensions: 22 x 70 x 40 inches (54.6 x 177.8 x 101.6 cm)