The TRAQC System

Just like test patches in graphical printing, our specially-designed conductive patterns act as barcodes: imprinting information about print quality onto a laser beam. Various qualities of this beam are monitored to glean real-time information about the individual print quality.

Far-Infrared Light:

Light is the fastest probe available, and has the benefits of being a non-contact measurement method. Using low-frequecy light in the terahertz (THz) range adds sensitivity to the electric conductivity of the illuminated device. This high sensitivity to conductivity is what allows for the evaluation of circuit geometry and functionality.

Pattern Design:

TRAQC’s patented quality control patterns interact with the incident THz light in known ways. The response from the laser, passing through the pattern, allows for the exraction of changes in ink quality, print geometry, and overall conductivity. Each of these is critical for proper device functionality.

TRAQC Benefits:

– Contactless Measurement

– In-Line Quality Testing

– Easy Installation on Prior Hardware

– No Clean Room Required

– Reduced Product Waste

– Increased Production Speed

Publications and Patents:

Our Patents

2019 Article in Sensors

Roll 2 roll quality control for printed electronics

TRAQC builds off quality control standards common in the graphical printing industry: measurable ink quality ‘test patches’.

graphics showing how sensitive is the quality control comparing to traditional systems
graphics showing how sensitive is the quality control comparing to traditional systems

Our robust THz measurements are equally, if not more, sensitive than typical contact methods.

pattern used by traqc for quality control for printed electronics

Patterns are printed using the same ink as the devices to directly measure conductivity and other critical printing parameters.