SMT Equipment

SIGMA Link Process Improvement Software Suite

Company Information:

Vi TECHNOLOGY is a worldwide global supplier of a wide range of innovative Automated Inspection AOI, 3D-SPI equipment and software solutions that provide real time data collection and correlation across the SMT line.

Richardson, Texas, USA


  • Phone 972-235-1170
  • Fax 972-235-1171

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SIGMA Link Process Improvement Software Suite

SIGMA Link Process Improvement Software Suite


SIGMA Link Process Improvement Software Suite



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SIGMA Link Process Improvement Software Suite Description:

SIGMA Link is a powerful web-based software suite currently structured around 3 modules:

SIGMA Import | SIGMA Review | SIGMA Analysis

SIGMA Link is a continuous yield improvement tool to translate SPI and AOI inspection data into useful process information. Built around a unified SPI and AOI database, a correlation of inspection data and images, SIGMA Link provides in-line monitoring, easy diagnosis of the entire PCB assembly process and full traceability of data and images.

Paves the way to industry 4.0

For Smart Factories, SIGMA Link is the essential element to connect inspection machines to Manufacturing Execution System. This real-time interface ensures full traceability and enables interlocking of machines to automate SMT lines while driving yield to new levels.

Ease AOI and SPI programming with SIGMA Import

SIGMA Import generates SPI and AOI input files (iCAD and VIS) from Gerber and CAD x,y files. 

It ensures database uniformity between AOI and SPI, simplifying traceability and audit management.

SPI and AOI results at a glance with SIGMA Review

SIGMA Review is correlating SPI and AOI results on a single screen to ease operator diagnosis (pass/fail).

It allows a simple and accurate defect classification by using predefined IPC defect categories and reference images.

Drive your process in real-time with SIGMA Analysis

SIGMA Analysis is a web-based real-time yield management software that offers powerful data mining solutions and root cause investigation.

By displaying SPI and AOI measurements (up-time/down-time data, FPY/FTY/DPMO calculation…), it’s the powerful tool for process engineers to measure, control and anticipate process variations.

SIGMA Link Process Improvement Software Suite was added in Feb 2016

SIGMA Link Process Improvement Software Suite has been viewed 1136 times

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