Technical Library | 2013-07-25 14:02:15.0
Bottom-termination components (BTC), such as QFNs, are becoming more common in PCB assemblies. These components are characterized by hidden solder joints. How are defects on hidden DFN joints detected? Certainly, insufficient solder joints on BTCs cannot be detected by manual visual inspection. Nor can this type of defect be detected by automated optical inspection; the joint is hidden by the component body. Defects such as insufficients are often referred to as "marginal" defects because there is likely enough solder present to make contact between the termination on the bottom-side of the component and the board pad for the component to pass in-circuit and functional test. Should the board be subjected to shock or vibration, however, there is a good chance this solder connection will fracture, leading to an open connection.
Industry Directory | Manufacturer
Production Solutions, Inc., manufacturer of the RED-E-SET Universal Board Support System for all Printers and Chipshooter, Dispensers and Placement machines.
Used SMT Equipment | AOI / Automated Optical Inspection
SAKY BF-PLANET-X With a superior resolution of 10μm and scanning line color CCD camera, both AOI system provide accurate and stable inspection results. Solder fillets on components as small as the high density mounted 01005(0402) chip, as well a
Technical Library | 2023-05-22 16:49:42.0
Our customers' issues • Apertures are getting smaller • Paste does not release as well • Contaminates the bottom of the stencil • Increases defects / reduces yield Insufficient solder Bridging Solder balls on surface of PCB Flux residue • Requires more frequent cleaning • Reduced efficiency (wasted time) • Increased use of consumables (cost) USC fabric (use "cheap" fabric to reduce cost) Lint creates more defects Cleaning chemistries (use IPA to reduce cost) IPA breaks down flux and can create more defects
Economical and practical AOI High precision detection platform design Fast programming debugging integration Automatic recognize the Top and Bottom side Professional SPC system Small and medium-sized growth enterprise special products Effic
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The patented technology control system of Z axis AOI can inspect component side of PTH technology. Simpler debugging algorithm, make the programming easier and easy to learn. shift of two sides of board (components top and bottom), auto software or
Used SMT Equipment | AOI / Automated Optical Inspection
Yestech YTV-F1 AOI Model: YTV-F1 Vintage: 2008 Good Functional Condition Cameras: 6 (1 top view + 1 High mag. + 4 side cameras) [2 of side cameras are inactive] High Mag Camera Option Stadium Lighting (White+Red+Blue+Green LEDS) Software: YesV
SUPERIOR VISION 4000 � SUPERIOR SOLDER DEFECT DETECTION The Photon Dynamics Superior Vision (SV) 4000 AOI system delivers comprehensive defect detection. Designed for high-pulse production of large-format, high-density and small component PWAs, t
SUPERIOR VISION 6000 � UNRIVALED SOLDER DEFECT DETECTION The Photon Dynamics Superior Vision (SV) 6000 AOI system delivers comprehensive defect detection. Designed for high-pulse production of large-format, high-density and small component PWAs,
500,000 components per hour Maximum Board Size: 18” x 20” (457mm x 508mm) Clearance: 2” (50mm) top and bottom Minimum Component Size: 0201; 01005 with high magnification option
