High-speed testing and sorting of ultra-compact, high-cap and general multilayer ceramic capacitors.

High-Volume MLCC Testing

Allegro performs high-throughput production-oriented testing of multi-layer ceramic capacitors (MLCC) and is designed to meet the challenges faced by MLCC manufacturers. Allegro allows customers to verify quality and ensure accurate specifications for the MLCCs used in a variety of applications related to the manufacturing of high-quality printed circuit boards used in nearly every type of electronic device.

Although Allegro can process up to 20,000 chips per minute, ESI’s advanced rotary handling technology minimizes the potential for damage to the chips as the result of testing, thus increasing yield.

Allegro has the flexibility to test MLCCs from <1pF to 100µF, and provides process flexibility and maximum utilization to lower testing costs. Multiple tests are simultaneously performed on chips as small as 01005 (M0402 metric) using ESI’s patented low impact rotary handler; delivering the continuous automation, reliability and productivity that MLCC manufacturers require.


High-volume testing without sacrificing yield.

  • Mobile Devices
  • IOT Devices
  • Personal Computers
  • MLCC Testing
  • MLCCs


  • ESI patented roller contacts
  • Pulse-actuated contacts
  • Supports up to 8 active IR stations
  • Software selectable voltage polarity for flexible IR testing process