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VISCOM_S3088_SPIFast and precise 3-D Paste Inspection

16 May 2011 – When it comes to inspecting electronic assemblies, detecting defects in the early stages with a solder paste inspection is highly important. In order to make 3-D paste inspection even faster and more efficient, Viscom has equipped its high performance AOI system S3088 with the proven sensor technology from CyberOptics. This 3-D SPI sensor technology inspects the solder paste deposit with highest speed and precision. The first system with this sensor, the Viscom S3088 SPI, was be presented at the SMT in Nuremburg.

The new inspection concept of the S3088 SPI is distinguished by a very fast and precise 3-D paste inspection. Two inspection modes are available to meet the specific requirement: HR mode (high resolution) with an inspection speed of up to 50 cm²/s and high speed mode, with an inspection speed of up to 80 cm²/s. Even demanding print structures and pad sizes of 01005 can be inspected with the highest reliability and repeat accuracy. This system inspects displacement, completeness and smearing and also with great precision, the height, surface area and volume of the solder paste.

With this integration of proven and technologically first class sensor for high speed 3-D SPI within the broad spectrum of high performance AOI and AXI, Viscom is now positioned to offer superior solutions for each inspection position in assembly placement. Viscom's universal software allows the operator to control all system types with a uniform user interface.

The special feature of this new 3-D solder paste inspection: right where typical inspection systems meet only one good/bad decision, the unique Process Uplink from Viscom also permits the use of process indicators (borderline defects). This means that for pads which are on the edge of the SPI tolerance range, but are still good, the inspection criteria on the AOI are tightened.

The S3088 SPI is fully compatible with the Viscom inspection systems and works with the proven Viscom SI software. The EasyPro user interface ensures simple and quick programming. Downstream data evaluation with Viscom post-classification, SPC statistical process control and EasyPro provides a powerful tool for real-time process optimization. In future, it will also be possible to run the system under the new vVision software. The first systems are now being delivered.

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