Features
ESSAD is a vibration and thermal screening system based on an acoustical technology which purpose is to precipitate and allow detection of latent defects on electronic devices, mainly circuit boards. It is characterized be its capacity to precisely control a specific level of energy over tailored vibration spectrums that generally include the resonance frequencies of the UUT (Unit Under Test). It is appropriate for the accelerated stress screening process such as HALT, HASS, and ESS.

ESSAD Product Specifications

USES

  • Printed Circuit Boards (PCB)
  • Compact electronic devices
  • Card cage assembly

DEFECTS DETECTED

The ESSAD system can precipitate, amongst other, common defects such as:
  • SMT (Surface Mounted Technology) solder joint on discrete components and IC leads.
  • Plated through-hole solder joints on components and connectors.
  • BGA (Ball Grid Array) solder joints.
  • Connector defects.
  • Mechanical attachment issues.
  • Etc.

SPECIFICATIONS

Performance
  • Easy and quick installation of UUT (Unit Under Test): 5 minutes or less per load.
  • Stimulation time duration: programmable, usually less than 15 minutes per load for vibration and less than 30 minutes per cycle in thermal or combined environments.
  • Fast verification procedure of the system: Can be run in 5 to 10 minutes.
  • Capacity: up to 8 small PCB, or 4 medium PCB, or 1 electronic device (card cage).
  • Allow for pre-programmed tests in vibration, temperature, and combined environment.
  • Possibility of different type of vibration control: Random, Sine, Sine on Random (SoR), and Random on Random (RoR)
  • Nominal random vibration range: 30 to 2000 Hz up to 30 GRMS nominal on a (15mm*25mm*1mm) 1 layer board.
    Other performance levels possible depending on the device physical attributes (weight, size, response to vibration) and vibration spectrum.
  • Sinusoidal mode: up to 100G peak at some resonance between 30 and 2000 Hz and up to 10G peak at other frequencies.
    Other performance levels possible depending on the device physical attributes (weight, size, response to vibration) and excitation frequency.
  • Vibration spectrum frequency range: 30 to 2000 Hz.
  • Energy consumption for vibration excitation is substantially reduced compared to Electrodynamic or pneumatic shakers.
  • Two types of sensors available for vibration control: Accelerometers and Microphones.
  • Easy determination of the resonance frequencies if the UUT and possibility of performing modal test.
  • Easy tailoring of the vibration spectrum of the UUT. A special transfer routine allows to automatically tailor the spectrum using the resonance frequencies of the UUT.
  • Possibility of tailoring the vibration spectrum over temperature.
  • Combined temperature and vibration control using the same software,
  • Reduced thermal inertia allows for fast temperature change rate together with electricity and LN2 reduction in comparison to standard equipment.
  • Temperature range: -125C to +125C.
  • Rate of change (air): cool-off -100C/minute and warm-up +100C/minute
Other Specifications
  • Level of noise: Maximum 70dB (A) at the operator's station.
  • LN2 safety of evacuation system of nitrogen.
  • Overall dimensions for the vibration thermal model:96"H x 64"W x 88"D.
  • Also available in vibration model only.
  • Weight: less than 1.5 tons.
  • Electrical power: 120/208V, 3 phases, 100A.
  • Operating System: Windows with web access options.
  • Temperature data acquisition module up to 16 channels.
  • Saftey interlock characteristics include in the equipment configuration.
  • Visual indication of the equipment status.
  • Physical access to UUT for continuous functional monitoring.
  • Comply with US and Canadian regulations: UL, ULC, FCC, (EMI/EMC).
  • Patent protected in several countries.
Please click here to view a 3 min. informational video on ESSAD (Important note: file size is 65Mb. Consider using "right-click..Save As")