Automatic 3D Solder Paste Inspection from Koh Young Technology

Technical Resources Corporation, or TRC, is a full service manfacturers' representative that specializes in both benchtop and fully automatic 3D solder paste volume inspection systems for printed circuit boards. Our partner, Christopher Associates, is the U.S. Distributor for the Koh Young Technology SPI systems.

KY-aSPIre
and VAXL inspection systems

Absolute convenience
The KY-aSPIre and VAXL inspection systems take the parametric inspection approach, in which the systems derive inspection results strictly based on the measured values of several parameters for each individual solder paste deposit. This allows any operator to program the system in approximately ten minutes by setting up only inspection conditions.

Highly reliable and accurate inspection
Based on the 3D geometrical measurement data of each ROI (Region of Interest) on the PCBs with the solder paste on them, the aSPIre is capable of detecting not only insufficient, excessive solder pastes, and shape deformity errors retaining 3D characteristics, but also cases of no paste, bridging, and position errors with 2D characteristics.

Inspection systems that consider throughput
On a typical application, the aSPIre was able to inspect all solder paste on approximately 4,000 pads within 25 seconds. Users of the KY systems are able to systematically keep their screen printers in an optimal working condition by depending on the 3D shape analysis of solder paste on each pad, and changing the trend of the volume distribution of each PCB. As a result, you will be able to significantly improve the process capability, and reduce rework expenses and loss of expensive electrical devices

User-friendly operating and programming screen
Most inspection equipment in the SMT field has taken the golden board inspection approach. The approach requires a large library of sufficient amount of image data that needs to be built during the programming stage. The data includes images of solder paste on pads considered exemplary by operators. During real-time inspection, the equipment inspects each object and concludes whether it matches the images in the previously developed library. Thus, developing such a library requires much time, effort, and knowledge.

Koh Young's approach allows any operator to program the system in approximately ten minutes by setting up only inspection conditions. The user-friendly programming process requiring only a simple 30 minute training for the operator. Absolute user-friendliness is accomplished through a simple programming environment and the Gerber conversion software front-end.

Clear and easy defect review window
All kinds of defects from screen printing processes can be detected through 3D inspection, which includes not only insufficient paste, excessive paste, shape deformity based on 3D volume and shape measurements, but also cases of no paste, bridging, and placement error. 3D shape diagnosis data are provided for customers to identify a specific set of solder pastes with normal volume but potential shape deformity.
With Koh Young's Real-Time SPC, ...
... the volume measurement repeatability data is collected. Sets of the SPC (Statistical Process Control) data are provided for customers to build the basis for six sigma quality management.
Inspection reliability has been further ensured by applying an intelligent inspection algorithm particularly for eliminating various kinds of noise affecting the inspection process.

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Technical Resources Corporation also represents Cavist low pressure molding systems, DEK screen printers, Vitronics Soltec reflow ovens, wave solder and selective soldering machines, Assembléon pick and place machines, Austin American Technology's PCB & stencil cleaning systems, KIC thermal profiling systems, Henkel Technologies' solder chemistries, adhesives, conformal coating materials, IPTE-America routers, conveyors, and test automation, Teradyne In-Circuit and AXI systems, marantz automated optical inspection systems, Pentagon EMS process carriers, VJ ElectroniX x-ray and automated rework systems, Vision Engineering optical systems, Valor manufacturing optimization software and Inovaxe material handling solutions.

TRC Line Card (in printable.pdf format)

For further information send us an email at:

trcfrank@aol.com

Technical Resources Corporation, 19574 Dinner Key Drive, Boca Raton, Florida 33498
Tel (561) 488-9064      Fax (561) 487-5036