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    • 41. 发明申请
    • Inkjet printer head and method of fabricating the same
    • 喷墨打印头及其制造方法
    • US20060044347A1
    • 2006-03-02
    • US11071363
    • 2005-03-04
    • Myong-jong KwonKyong-il KimKwang-ryul KimNam-kyun KimByung-ha ParkYong-shik ParkEun-bong HanYoung-ung HaSung-joon ParkJae-sik Min
    • Myong-jong KwonKyong-il KimKwang-ryul KimNam-kyun KimByung-ha ParkYong-shik ParkEun-bong HanYoung-ung HaSung-joon ParkJae-sik Min
    • B41J2/135
    • B41J2/1603B41J2/1628B41J2/1629B41J2/1645
    • An inkjet printer head includes a substrate having an ink-feed hole to supply ink stored in a cartridge to an ink chamber and a restrictor in fluid communication with the ink chamber, an oxide layer formed on the substrate, a heater disposed on the oxide layer above the restrictor and having fixed parts disposed on the oxide layer, slopes extending upward and away from the restrictor at an incline, and a parallel part extending between the slopes parallel to the substrate, a lead formed to be in electrical contact with the heater, a chamber layer formed to cover the lead and to define the ink chamber, and a nozzle layer formed on the chamber layer and having a nozzle. In the inkjet printer head, the lifespan of the heater may be extended since the heater is supported by the slopes, which function as a shock absorbing member when ink supply pressure or cavitation force is applied to a surface of the heater. In addition, since the heater does not have a right angle structure, the heater may be formed to have a uniform thickness even when a thin layer used for the heater is formed by a deposition method.
    • 一种喷墨打印头包括:具有供墨孔的基板,用于将存储在墨盒中的墨水供应到墨室;以及限制器,其与所述墨室流体连通;形成在所述基板上的氧化物层;设置在所述氧化物层上的加热器 在限流器上方并且具有设置在氧化物层上的固定部分,倾斜在倾斜处向上延伸并远离限制器,并且平行部分在平行于衬底的斜面之间延伸,形成为与加热器电接触的引线, 形成为覆盖引线并限定墨水室的室层,以及形成在室层上并具有喷嘴的喷嘴层。 在喷墨打印机头中,加热器的寿命可以延长,因为加热器由斜面支撑,当墨水供应压力或空穴力施加到加热器的表面时,该斜面用作减震构件。 此外,由于加热器不具有直角结构,即使当通过沉积方法形成用于加热器的薄层时,也可以将加热器形成为具有均匀的厚度。
    • 42. 发明申请
    • NbSi-2 base nanocomposite coating and manufacturing method thereof
    • NbSi-2基复合纳米复合涂层及其制备方法
    • US20060029830A1
    • 2006-02-09
    • US11023463
    • 2004-12-29
    • Jin-Kook YoonGyeung-Ho KimKyung-Tae HongJung-Man DohJong-Kwon LeeKyung-Hwan LeeKeun-Hyung Son
    • Jin-Kook YoonGyeung-Ho KimKyung-Tae HongJung-Man DohJong-Kwon LeeKyung-Hwan LeeKeun-Hyung Son
    • B32B19/00B32B9/00C23C16/26
    • C23C12/00B82Y30/00C23C8/02C23C8/80
    • A NbSi2-base nanocomposite coating formed on the surface of niobium or niobium-base alloys is disclosed. The nanocomposite coating layer is manufactured by forming a niobium carbide layers or a niobium nitride layers by depositing of carbon or nitrogen on the surface, and then depositing silicon. The nanocomposite coating layer has a microstructure that SiC or Si3N4 particles are mostly precipitated on an equiaxed NbSi2 grain boundary. The thermal expansion coefficients of NbSi2-base nanocomposite coating layers become close to that of the substrates by adjusting the volume fraction of SiC or Si3N4 particles in the nanocomposite coating layers. Accordingly, the generation of cracks caused by thermal stress due to the mismatch in thermal expansion coefficient between the NbSi2-base nanocomposite coatings and the substrates can be suppressed, thereby improving the high-temperature oxidation resistance in the repeated thermal cycling use of the NbSi2-base nanocomposite coated substrates. Further, the increase in the volume fraction of dense SiO2 oxide phase formed on the surface of the NbSi2-base nanocomposite coating layers improves also high-temperature isothermal oxidation resistance.
    • 公开了在铌或铌基合金的表面上形成的NbSi 2 N基纳米复合涂层。 通过在表面上沉积碳或氮,然后沉积硅来形成碳化铌层或氮化铌层来制造纳米复合涂层。 纳米复合涂层具有微观结构,SiC或Si 3 N 4+颗粒主要在等轴NbSi 2晶界上沉淀。 通过调节SiC或Si 3 N 4纳米复合材料层的体积分数,NbSi 2 N基纳米复合材料涂层的热膨胀系数变得接近于基底的热膨胀系数, SUB>颗粒在纳米复合涂层中。 因此,可以抑制由于NbSi 2+基纳米复合材料层和基板之间的热膨胀系数的失配而引起的热应力的产生,从而提高了NbSi 2 重复热循环使用NbSi 2 N基纳米复合物涂覆的基材。 此外,形成在NbSi 2 N基纳米复合涂层表面上的致密SiO 2氧化物相的体积分数的增加也提高了高温等温抗氧化性。
    • 44. 发明申请
    • Active load circuit for low-voltage CMOS voltage gain amplifier with wide bandwidth and high gain characteristic
    • 用于具有宽带宽和高增益特性的低压CMOS电压增益放大器的有源负载电路
    • US20050253654A1
    • 2005-11-17
    • US10846082
    • 2004-05-14
    • Jong KwonGyu ChoMun ParkJong Kim
    • Jong KwonGyu ChoMun ParkJong Kim
    • H03F3/45
    • H03F3/45183H03F3/45179H03F2203/45644
    • Provided is an active load circuit of a voltage gain amplifier, which allows a high voltage gain with a low supply voltage operation in high-frequency range. The active load circuit includes a PMOS transistor which is connected between the amplifying unit and a power supply voltage and functions as a load element in a low frequency range; a negative feedback buffering unit which is connected to the gate of the PMOS transistor and functions as a common drain amplifier to stabilize the output voltage of the voltage gain amplifier and drive the voltage gain amplifier at a low voltage; and a capacitor which is connected to the negative feedback buffering unit and compensates for both an impedance and a frequency characteristics when the voltage gain amplifier operates in a high frequency range.
    • 提供了一种电压增益放大器的有源负载电路,其允许在高频范围内具有低电源电压操作的高电压增益。 有源负载电路包括连接在放大单元和电源电压之间并用作低频范围内的负载元件的PMOS晶体管; 负反馈缓冲单元,其连接到PMOS晶体管的栅极并用作公共漏极放大器,以稳定电压增益放大器的输出电压并以低电压驱动电压增益放大器; 以及电容器,其连接到负反馈缓冲单元,并且当电压增益放大器在高频范围内工作时,补偿阻抗和频率特性两者。
    • 47. 发明授权
    • Bubble-jet type inkjet printhead
    • 喷气式喷墨打印头
    • US06676244B2
    • 2004-01-13
    • US10215341
    • 2002-08-09
    • Myung-jong KwonYong-soo OhSeog Soon Baek
    • Myung-jong KwonYong-soo OhSeog Soon Baek
    • B41J2135
    • B41J2/1606B41J2/1404B41J2/14137B41J2002/1437
    • A bubble-jet type inkjet printhead is disclosed, wherein a manifold for supplying ink, an ink chamber having a substantially hemispherical shape and filled with ink to be ejected, and an ink channel for supplying ink from the manifold to the ink chamber, are incorporated in a substrate. A nozzle plate having a nozzle, through which ink is ejected at the center of the ink chamber, is formed on the substrate. A heater is provided on the nozzle plate and surrounding the nozzle, and electrodes are provided on the nozzle plate and electrically connected to the heater to supply pulse current to the heater. An anti-wetting coating including a perfluorinated alkene compound on at least a surface around the nozzle is formed on an exposed surface of the printhead. Preferably, the anti-wetting coating is deposited by RF glow discharge and can be removed by O2 plasma.
    • 公开了一种气泡喷墨式喷墨打印头,其中,用于供应墨水的歧管,具有大致半球形状并且填充有要喷射的墨水的墨水室以及用于将墨水从歧管供应到墨水室的墨水通道 在基材中。 具有喷嘴的喷嘴板形成在基板上,喷嘴通过喷嘴在油墨室的中心喷射油墨。 在喷嘴板上设置加热器并围绕喷嘴,电极设置在喷嘴板上并电连接到加热器以向加热器提供脉冲电流。 在打印头的暴露表面上形成包括在喷嘴周围的至少表面上的全氟化烯化合物的防湿涂层。 优选地,抗潮湿涂层通过RF辉光放电沉积,并且可以通过O 2等离子体去除。