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    • 41. 发明申请
    • Limiter for controlling overvoltage and RFID tag having the same
    • 用于控制过电压的限制器和具有相同功能的RFID标签
    • US20070152827A1
    • 2007-07-05
    • US11486279
    • 2006-07-14
    • Il-jong SongYoung-hoon MinChol-su YoonDong-sik Shim
    • Il-jong SongYoung-hoon MinChol-su YoonDong-sik Shim
    • G08B13/14H04Q5/22G08B23/00
    • G06K19/0723
    • A limiter for controlling an overvoltage and an RFID tag having the same are provided. The limiter includes a first limiter part and a second limiter part serially connected to the first limiter part. The second limiter part has at least one limit diode whose threshold voltage is lower than that of elements in the first limiter part. Accordingly, if an overvoltage is input, the limiter can maximize the input current drop so that the limiter can maximize the leakage voltage. As a result, the RFID tag can prevent the RFID driving part from being damaged due to the overvoltage. In addition, the RFID tag can normally operate regardless of the intensity of the driving voltage input from the RFID reader, so that the yields of products can improve.
    • 提供了用于控制过电压的限制器和具有该限制器的RFID标签。 限幅器包括与第一限幅器部分串联连接的第一限幅器部分和第二限幅器部分。 第二限幅器部分具有至少一个限制二极管,其阈值电压低于第一限幅器部分中的元件的阈值电压。 因此,如果输入过电压,则限幅器可以使输入电流下降最大化,使得限幅器可以使漏电压最大化。 结果,RFID标签可以防止RFID驱动部件由于过电压而被损坏。 此外,RFID标签可以正常工作,而与RFID读取器输入的驱动电压的强度无关,从而可以提高产品的产量。
    • 50. 发明申请
    • METHOD OF FABRICATING INKJET PRINTHEAD
    • 制造喷墨打印机的方法
    • US20070131648A1
    • 2007-06-14
    • US11423982
    • 2006-06-14
    • Dong-sik ShimHyung Choi
    • Dong-sik ShimHyung Choi
    • G01D15/00G11B5/127
    • B41J2/14129B41J2/14137B41J2/1603B41J2/1626B41J2/1631B41J2/1639B41J2/1643Y10T29/49083Y10T29/49126Y10T29/49128Y10T29/4913Y10T29/49401
    • A method of fabricating an inkjet printhead. The method of fabricating an inkjet printhead includes sequentially forming an insulating layer, a heater, and an electrode on a substrate and forming a passivation layer on the insulating layer to cover the heater and the electrode; forming a trench that exposes the substrate by sequentially etching the passivation layer and the insulating layer; forming a sacrificial layer to form an ink chamber on the passivation layer to fill the trench; forming a seed layer to provide a plating on the sacrificial layer and the passivation layer; forming a nozzle mold on the seed layer positioned over the heater; forming a plating layer on the seed layer to a predetermined thickness; forming an ink feed hole by etching a rear surface of the substrate to expose the sacrificial layer which is filled in the trench; forming a nozzle by sequentially removing the nozzle mold and the seed layer positioned under the nozzle mold; and forming the ink chamber by removing the sacrificial layer which is exposed by the nozzle and the ink feed hole.
    • 一种制造喷墨打印头的方法。 制造喷墨打印头的方法包括在基板上依次形成绝缘层,加热器和电极,并在绝缘层上形成钝化层以覆盖加热器和电极; 形成通过依次蚀刻钝化层和绝缘层而使衬底暴露的沟槽; 形成牺牲层以在所述钝化层上形成墨水腔以填充所述沟槽; 形成种子层以在所述牺牲层和所述钝化层上提供电镀; 在位于加热器上方的种子层上形成喷嘴模具; 在种子层上形成预定厚度的镀层; 通过蚀刻所述衬底的后表面以暴露所述沟槽中填充的所述牺牲层来形成供墨孔; 通过依次去除位于喷嘴模具下方的喷嘴模具和籽晶层形成喷嘴; 以及通过去除由喷嘴和供墨孔暴露的牺牲层来形成墨室。