The present invention relates to a new method for the synthesis of triaroylbenzene by secondary amine and DMF-catalyzed cyclotrimerization of acetylenes. This method can be applied for the synthesis of new branched organic materials and polymers containing the triaroylbenzene moieties. The polymeriz.....
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A new switched-opamp technique is proposed to operate switched-capacitor circuits at supply voltages as low as 1-V without on-chip voltage multiplier or low-Vt devices. The main idea of the new switched-opamp technique is to implement an additional switchable operational amplifier (opamp) in parall.....
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Conventional graphite made from sulfuric acid-graphite intercalation compound (GIC) contains much amount of sulfur, which cause environmental pollution and corrosion.The invention provides a new formic acid-GIC synthesized by an electrochemical process in which formic acid is used as electrolyte. Th.....
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Electroplating-based flip chip solder preparation process had been widely used over other preparation methods. Although it is cheaper and is able to achieve the material deposition on the fine pitch I/O pads, the solder bumps resulted are not uniform and not quality-guaranteed. In this invention, ma.....
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A structured overlay using in Pastry is efficient to search for unique items and is applied in our study. However, since all items are treated equally in structured overlays, the search time for popular people (such as the ones in the hot list) cannot be fast based on Pastry. We therefore propose a .....
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