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    • 7. 发明授权
    • Substrate unit for liquid discharging head, method for producing the same, liquid discharging head, cartridge, and image forming apparatus
    • 液体排放头用基板单元,其制造方法,排液头,筒和图像形成装置
    • US06467884B1
    • 2002-10-22
    • US09643931
    • 2000-08-23
    • Fumio MurookaKei FujitaYukihiro HayakawaMakoto Terui
    • Fumio MurookaKei FujitaYukihiro HayakawaMakoto Terui
    • B41J205
    • B41J2/14129B41J2/1601B41J2/1623B41J2/1628B41J2/1629B41J2/1631H05K3/28
    • To provide a substrate unit for liquid discharging head, a method for producing the same, a liquid discharging head, a cartridge, and an image forming apparatus. The substrate unit for liquid discharging head is for a head which gives thermal energy to the liquid for film boiling, to discharge droplets of the liquid from its discharge port. The substrate unit includes an electrothermal transducer provided on the substrate surface to generate thermal energy, a pair of electrode wiring circuits provided on the substrate surface and connected to the transducer, first protective layer formed over the substantially entire surface of the substrate to cover a pair of the electrode wiring circuits and transducer, and second protective layer formed over the first protective layer to cover the transducer and the area where the transducer is connected to the wiring circuit, in which a pair of the electrode wiring circuits are 1800 to 2400 Å thick, and the portion of the first protective layer covered by the second protective layer is 2600 to 3400 Å thick and thicker than the portion of the first protective layer not covered by the second protective layer.
    • 提供一种用于排液头的基板单元,其制造方法,液体排放头,盒和图像形成装置。 用于喷液头的基板单元用于向液体进行薄膜沸腾的热能,以从其排出口排出液体的液滴。 基板单元包括设置在基板表面上以产生热能的电热换能器,设置在基板表面上并连接到换能器的一对电极布线电路,形成在基板的基本整个表面上以覆盖一对的第一保护层 的电极布线电路和传感器;以及第二保护层,形成在第一保护层上以覆盖换能器和传感器连接到布线电路的区域,其中一对电极布线电路的厚度为1800至2400埃 并且由第二保护层覆盖的第一保护层的部分比未被第二保护层覆盖的第一保护层的部分厚2600至3400。
    • 10. 发明授权
    • Semiconductor device and liquid jetting device using the same
    • 半导体装置及使用其的液体喷射装置
    • US06867457B2
    • 2005-03-15
    • US10615288
    • 2003-07-09
    • Yukihiro HayakawaKei FujitaMineo Shimotsusa
    • Yukihiro HayakawaKei FujitaMineo Shimotsusa
    • B41J2/05B41J2/14B41J2/16H01L21/336H01L21/8234H01L27/088H01L29/06H01L29/78H01L29/76H01L29/94H01L31/062H01L31/113H01L31/119
    • H01L29/7816B41J2/14072B41J2/14129B41J2202/13H01L27/088H01L29/0696H01L29/66681H01L29/7835
    • A semiconductor device having a plurality of electrothermal conversion elements and a plurality of switching elements for flowing current through the electrothermal conversion elements, respectively formed on a semiconductor substrate of a first conductivity type, wherein each of the switching elements is an insulated gate field effect transistor including: a first semiconductor region of a second conductivity type opposite to the first conductivity type, the first semiconductor region being formed on a principal surface of the semiconductor substrate, a second semiconductor region of the first conductivity type for providing a channel region, the second semiconductor region being formed adjacent to the first semiconductor region, a source region of the second conductivity type formed in a surface layer of the second semiconductor region, a drain region of the second conductivity type formed in a surface layer of the first semiconductor region, and a gate electrode formed on a gate insulating film on the channel region, and a resistivity of the semiconductor substrate is 5 to 18 Ωcm, and the first semiconductor region has a depth of 2.0 to 2.2 μm along a depth direction of the semiconductor substrate and an impurity concentration of 1×1014 to 1×1018/cm3.
    • 一种半导体器件,具有多个电热转换元件和多个开关元件,用于使电流流过电热转换元件,分别形成在第一导电类型的半导体衬底上,其中每个开关元件是绝缘栅场效应晶体管 包括:与所述第一导电类型相反的第二导电类型的第一半导体区域,所述第一半导体区域形成在所述半导体衬底的主表面上,所述第一导电类型的第二半导体区域用于提供沟道区域,所述第二半导体区域 半导体区域形成在第一半导体区域附近,形成在第二半导体区域的表面层中的第二导电类型的源极区域,形成在第一半导体区域的表面层中的第二导电类型的漏极区域,以及 形成在栅极上的栅电极 并且半导体衬底的电阻率为5〜18Ω·cm,第一半导体区域沿着半导体衬底的深度方向的深度为2.0〜2.2μm,杂质浓度为1×10 14Ω·cm, 至1×10 18 / cm 3。