PI Series,



PI Series is a new generation 3D Solder Paste Inspection system that overcomes the limitations of traditional SPIs and satisfy all your inspection needs.

This video introduces PI Series, the new generation 3D Solder Paste Inspection, having small footprint and high accuracy measurement 

New generation 3D SPI
The PI Series allows to easily implement Solder Paste Inspection in any PCBA line. These new generation systems are very intuitive to use, allowing non-experienced persons to get expected results.
With reduced footprint, all models are fitting in modern assembly lines.

PI Series



Automatic, accurate, repeatable…

PI Series is a new generation system to meet your advanced Solder Paste Inspection requirements with unprecedented simplicity.

Inspect with simplicity A natural user interface accessible to anyone

PI is useable by anyone. Operators, not just engineers, can program the machine. PI’s powerful capabilities are just a fingertip away.

  1. PI is designed to operate solely with a touch screen icon based interface with no keyboard and no mouse.
  2. Anyone is up and running after just an hour’s training.
  3. Calibration is done at a press of button with embedded geometric and radiometric calibration tools to ensure consistent performance over time and machine-to-machine portability.

Intuitive user interface from PI Series allowing anyone to run 3D solder paste inspection
The PI Series' auto-programming mode enables high quality inspection independently of programmer's experience level
Inspect without effort Let the machine program itself

PI is the only SPI to program automatically. Auto-programming enables high quality inspection independently of programmers’ experience level.

  1. Just scan a bare board, to ensure accurate measurement, and let the machine program itself.
  2. With auto-programming, fine tuning is no longer required. Performance is consistent, regardless of color or finish variations. Thus, PI is ideal for New Product Introduction.
  3. In addition to paste inspection, PI offers simultaneous glue inspection.

Inspect without doubts Demand accuracy, not just repeatability

PI’s patented Z-referencing technology overcomes the limitation of traditional SPIs and brings unprecedented accuracy to paste volume measurement.

  1. Accuracy in production is about Z-referencing. All traditional SPIs set a threshold (typically 40 μm) under which height and thus volume is no longer measured. As a result, volume is under estimated on small pads, precisely when you need to know how much paste is truly deposited.
  2. PI’s patented Z-referencing method leverages the entire textured 3D board information, not just cropped images around pads, to define stable and accurate Z-reference.
  3. PI’s multi-frequency, multi pattern Moiré combined with patented dual Z axis motion, off er unique warp compensation to deliver accurate measurements in real production environments, with no false calls.
  4. High resolution textured 3D images provide unambiguous information for defect classification.

The PI Series patented Z-referencing technology brings unprecedented accuracy to paste volume measurement
The PI Series allows pad grouping by AAR (Area Aperture Ratio) to
Inspect with a purpose Control the print process to increase yield

PI’s automatic pad grouping by AAR is just one the many features targeted specifically at process control. Combined with SIGMA Link software suite, inspection data becomes actionable process information.

  1. Improve your process and set tolerances independently of products with automatic pad grouping by AAR (Area Aperture Ratio).
  2. Understand your process with an extra-large review image in textured 3D for easy diagnostic.
  3. Improve your production yields with closed-loop function.
  4. Monitor your process in real-time with SIGMA Analysis – Off-line SPC – or simply with PI’s embedded SPC.


A completely field upgradeable product range satisfying speed and PCB size requirements, with a single footprint. 

The PI Series is proposing several models, depending on PCB size and inspection speed. PI PICO for small PCB and low inspection speed. PI PRIMO for large PCB and high inspection speed.

Vi TECHNOLOGY solutions for Solder Paste Inspection are PI PICO for affordable inspection (small size PCB) and PI PRIMO for high speed inspection (small and large size PCB)