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    • 51. 发明授权
    • Method for fabricating a switching transistor having a capacitive
network proximate a drift region
    • 一种用于制造具有靠近漂移区域的电容网络的开关晶体管的方法
    • US5587329A
    • 1996-12-24
    • US295374
    • 1994-08-24
    • Fu-Lung HseuhAlfred C. IpriGary M. DolnyRoger G. Stewart
    • Fu-Lung HseuhAlfred C. IpriGary M. DolnyRoger G. Stewart
    • H01L29/786G09G3/30H01L27/088H01L27/12H01L21/786
    • H01L27/1203G09G3/30H01L27/088H01L27/12G09G2300/0842
    • In an active matrix electroluminescent display, a pixel containing a grounded conductive electric field shield between an EL cell and the switching electronics for the EL cell. In a method of fabricating the pixel, first, an EL cell switching circuit is formed, then an insulating layer is formed over the switching circuit and a conductive layer (the field shield) is formed over the insulating layer. A through hole is provided in the field shield such that an electrical connection can be made between the switching circuit and an EL cell. The EL cell is then conventionally formed on top of the shield layer. Consequently, the shield isolates the switching circuit from the EL cell and ensures that any electric fields produced in the EL cell do not interfere with the operation of the switching electronics. Furthermore, the switching circuitry for each cell contains two transistors; a low voltage MOS transistor and a high voltage MOS transistor. The low voltage transistor is controlled by signals on a data and a select line. When activated, the low voltage transistor activates the high voltage transistor by charging the gate of the high voltage transistor. This gate charge is stored between the gate electrode of the high voltage transistor and the electric field shield. Additionally, to improve the breakdown voltage of the high voltage transistor, a capacitive divider network is fabricated proximate the drift region of that transistor. As such, the network uniformly distributes an electric field over the drift region.
    • 在有源矩阵电致发光显示器中,包含EL单元和用于EL单元的开关电子器件之间的接地导电电场屏蔽的像素。 在制造像素的方法中,首先,形成EL单元切换电路,然后在开关电路上形成绝缘层,并且在绝缘层上形成导电层(场屏蔽)。 在屏蔽层中设置通孔,使得可以在开关电路和EL单元之间形成电连接。 然后通常将EL电池形成在屏蔽层的顶部。 因此,屏蔽将开关电路与EL单元隔离,并确保在EL单元中产生的任何电场不会干扰开关电子器件的操作。 此外,每个单元的开关电路包含两个晶体管; 低压MOS晶体管和高压MOS晶体管。 低电压晶体管由数据和选择线上的信号控制。 当激活时,低压晶体管通过对高电压晶体管的栅极充电来激活高电压晶体管。 该栅极电荷存储在高电压晶体管的栅电极和电场屏蔽之间。 另外,为了提高高压晶体管的击穿电压,在该晶体管的漂移区附近制造电容分压网络。 这样,网络在漂移区域上均匀地分布电场。
    • 53. 发明授权
    • Method of manufacturing a polysilicon thin film transistor
    • 制造多晶硅薄膜晶体管的方法
    • US5424230A
    • 1995-06-13
    • US283250
    • 1994-07-29
    • Haruo Wakai
    • Haruo Wakai
    • H01L21/20H01L21/336H01L29/786H01L21/786
    • H01L29/66765H01L21/2022H01L29/78618H01L29/78621Y10S148/09Y10S148/15
    • An amorphous silicon hydride thin film is deposited on an insulating body by a plasma CVD method, and is then heated for dehydrogenating the amorphous silicon thin film so that a dehydrogenated amorphous silicon thin film containing hydrogen of 3 atomic % or less is formed. The insulating body may be an insulating substrate (such as a glass substrate) alone, or a combination of an insulating substrate with an intermediate insulating base layer thereon. Impurity ions are injected into the dehydrogenated amorphous silicon hydride thin film to form source and drain regions. Excimer laser beams are applied to the dehydrogenated amorphous silicon thin film, thereby polycrystallizing the amorphous silicon thin film into a polysilicon thin film and activating the injected impurity ions.
    • 通过等离子体CVD法将非晶硅氢化物薄膜沉积在绝缘体上,然后被加热以使非晶硅薄膜脱氢,从而形成含有3原子%以下的氢的脱氢非晶硅薄膜。 绝缘体可以是单独的绝缘基板(例如玻璃基板),也可以是其上具有中间绝缘基底层的绝缘基板的组合。 将杂质离子注入到脱氢的非晶硅氢化物薄膜中以形成源区和漏区。 将准分子激光束施加到脱氢的非晶硅薄膜上,从而将非晶硅薄膜多晶化为多晶硅薄膜并激活注入的杂质离子。