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Two presentations:
"A Novel X-ray Microtomography System with High Resolution and Throughput For Non-Destructive Imaging of Advanced Packages" -- David Scott, Xradia
"ÁCT Techniques In Combined 2D/3D High Resolution X-ray Systems" -- Dr. Udo Frank, Feinfocus

October 13, 2004
  • Seated dinner served at 6:30 ($25 if reserved before October 9; $30 after & at door; vegetarian available)
  • Presentation (no cost) at 7:30.

    Ramada Inn

  • 1217 Wildwood Ave (Fwy 101 frontage road, between Lawrence Expressway and Great America Parkway), Sunnyvale, (800) 888-3899 -- see map.


  • For dinner and/or meeting: by email to Allen Earman
  • Please reserve for "presentation-only", even if not attending the dinner.

    "A Novel X-ray Microtomography System" -- Complex advanced package designs present challenging problems for the failure analysis community. X-ray imaging techniques provide a unique way to perform package FA non-destructively, however, the complexity of the new advanced packages proves problematic for 2D x-ray imaging alone. Xradia's Micro-XCT 3D tomographic imaging microscope resolves this problem by providing high resolution 3D imaging of advanced IC structures non-invasively. The Micro-XCT system has demonstrated visualization of wire bond lifts, solder-bump non-wetting problems, solder wicking, voids, cracks and delaminations that are difficult if not impossible to image using 2D x-ray techniques.

    The Micro-XCT includes a fully automated tomographic data acquisition system and real-time reconstruction engine. An interactive 3D visualization package allows the user to view and analyze the 3D data in various ways, including 3D rendering and virtual cross-sectioning and de-layering. The system's unique capability of imaging at high-resolution without compromising throughput makes it a powerful tool in non-destructive imaging applications for Advanced Package FA as well as microtechnology and biotechnology (for example, imaging embedded MEMs structures, material stress failure mode analysis, bone implant interface, etc). Since it is non-destructive it is ideally suited for stress and thermal fatigue testing, new process development and failure analysis.

    "ÁCT Techniques In Combined 2D/3D High Resolution X-ray Systems" -- All physical objects, we know, are 3-dimensional. But X-ray inspection shows only 2-dimensional shadow images of their absorption structure. Micro- or even nanofocus X-ray systems provide 2D resolution below 1 Ám for inspecting small hidden structures - widely used in the electronics industry (BGA, Flip Chip, CSP, bond wires, die-attach, PCB, etc.) For many applications images of 2D X-ray inspection provide sufficient information for conceiving even the third dimension of a sample. Nevertheless, recent developments have made available various techniques for complete 3D reconstruction of small samples using axial or planar computed tomography. The talk will give an overview on that technique, showing practical examples and images.

    Speaker Biographies
    David D. Scott received his BS in Aerospace Engineering from the Univ of Kansas and his MS in Biomedical Engineering from the Univ of Colorado. He served as Senior Biomedical Engineer at Walter Reed Army Institute of Research, Washington, DC, and then as a Medical Technology Program Staff Scientist at Lawrence Livermore National Laboratory. At LLNL he was Lead Project Engineer for a three-year $11M medical imaging system, performed algorithm development and implementation of tomographic imaging algorithms and graphical user interface, and was in charge of algorithm implementation on DSP's and hardware software interface. He is currently Product Line Manager for Xradia, Inc., Concord.

    Udo E. Frank is the Director of Technology Development of FEINFOCUS GmbH, Germany. He studied physics and chemistry, and received his Ph.D. in molecular physics from the University of Ulm, Germany. Dr. Frank joined FEINFOCUS in 1992, and has gained a comprehensive knowledge of high-resolution X-ray microscopy. He is an expert especially in the inspection of electronic components. During the last five years, under his direction, the FEINFOCUS R&D team has developed several innovative high-resolution X-ray systems with revolutionary new operating and functional designs, several of which have been honored with respected industry awards.

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