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The objective ofthis work is to investigate the white blood cell (WBC) image recognition problem at all involved stages and introduces robust and effective method for automatic WBC digerentiation based on both statistical pattern recognition and neural net approaches. We demonstrate well-evaluated results ranging fiom image scene segmentation techniques to(More)
A polymer trilayer (sandwiched) film with a thickness of 20–30 nm has been designed to serve as a wear resistant nanoscale coating for silicon surfaces. These surface structures are formed by a multiple grafting technique applied to self-assembled monolayers (SAM) and functionalized tri-block copolymer, followed by the photopolymerization of a topmost(More)
We propose a method of producing a tungsten probe with high stiffness for atomic force microscopy (AFM) in order to acquire enhanced phase contrast images and efficiently perform lithography. A tungsten probe with a tip radius between 20nm and 50nm was fabricated using electrochemical etching optimized by applying pulse waves at different voltages. The(More)
Polymer surface layers comprised of mixed chains grafted to a functionalized silicon surface with a total layer thickness of only 1-3 nm are shown to exhibit reversible switching of their structure. Carboxylic acid-terminated polystyrene (PS) and poly (butyl acrylate) (PBA) were chemically attached to a silicon surface that was modified with an epoxysilane(More)
In this study, we investigated the effects of UBM(Under Bump Metallization) and solder composition on the drop impact reliability of wafer level packaging. Fan-in type WLP chips were prepared with different solder ball composition (Sn3.0Ag0.5Cu, and Sn1.0Ag0.5Cu) and UBM (Cu 10 μm, Cu 5 μm\Ni 3 μm). Drop test was performed up to 200 cycles with 1500G(More)
A novel, nanoscale, thickness-controlled, elastic graphene oxide-polydiallyldimethylammonium chloride (GO-PDDA) film using a layer-by-layer technique on silver nanowires and a flexible substrate is reported. Micro- and nanoscale wear and flexibility depending on the thickness and/or elastic nature of the overcoating layer demonstrate high mechanical(More)
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