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News

Ultimate QA validates leading-edge stencils

Tecan : 21 May, 2002  (New Product)
Stencil specialist, Tecan, has installed the latest and most advanced automatic optical inspection system, as part of its ongoing commitment to ensuring its entire stencil products and services policy continues to meet the demands of both today and the future.
Stencil specialist, Tecan, has installed the latest and most advanced automatic optical inspection system, as part of its ongoing commitment to ensuring its entire stencil products and services policy continues to meet the demands of both today and the future.

Fast and effective, the new LPKF ScanCheck system verifies laser-cut, electroformed and etched stencils against their respective CAD data. Every stencil is checked for aperture existence and every aperture is checked for conformance to required physical dimensions, shape and positional accuracy. Whether a simple single-thickness stencil, or more complex fine-pitch requirement, the system facilitates total verification of the final product.

'As customers' printing requirements depend on the quality of the stencil, we believe that the ScanCheck measurement system is crucial in guaranteeing the printed results required. It is the only system to offer both image verification and accurate inclusive aperture measurement in a single scan,' said stencil division manager, Tony Weldon. 'As evolving technology results in smaller component packages and lead pitches, it is vitally important to guarantee stencils continue to provide effective printing solutions.'

The system is designed to provide accuracy with speed and can fully inspect two million apertures on a wafer-bumping stencil in approximately ten minutes, using a resolution of 12,000DPI. Having an effective scanning area of 470mm x 660mm, allows both large single images and multiple images to be fully accommodated in one single scan, while maintaining an accuracy of +/-10 microns, across the entire bed. The scanned data for each stencil is retained in an archive and a stencil quality report can be provided. All Tecan stencils are manufactured in accordance with both the customer's requirements and internal ISO 9002 quality control procedures.
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