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    • 36. 发明授权
    • System and method for forming base coat and thin film layers by sequential sputter depositing
    • 通过顺序溅射沉积形成底涂层和薄膜层的系统和方法
    • US06579425B2
    • 2003-06-17
    • US09906881
    • 2001-07-16
    • Apostolos VoutsasYukihiko Nakata
    • Apostolos VoutsasYukihiko Nakata
    • C23C1435
    • C23C14/568C23C14/165
    • A system and method are provided to sequentially deposit a silicon dioxide base coat barrier layer adjacent a thin silicon film, to minimize the formation of water and —OH radicals. Both the base coat and thin silicon films are sputter to eliminate hydrogen chemistries. Further, the sputter processes are conducted sequentially, without breaking the vacuum seat to minimize the absorption of water in the base coat layer that conventionally occurs between deposition steps. This process eliminates the total number of process steps required, as there is no longer a need for furnace annealing the base coat before the deposition of the thin silicon film, and no longer a need for a dehydrogenation annealing step after the deposition of the thin silicon film.
    • 提供了一种系统和方法,以顺次沉积邻近薄硅膜的二氧化硅基底涂层阻挡层,以最小化水和-OH自由基的形成。 底涂层和薄硅膜都被溅射以消除氢化学物质。 此外,依次进行溅射处理,而不破坏真空座,以使沉积步骤之间常规发生的底涂层中的水的吸收最小化。 该方法消除了所需的工艺步骤的总数,因为在沉积薄硅膜之前不再需要对底涂层进行炉退火,并且在沉积薄硅之后不再需要脱氢退火步骤 电影。
    • 37. 发明授权
    • Thin film transistor in metal-induced crystallized region formed around a transition metal nucleus site
    • 金属诱导的结晶区域中的薄膜晶体管形成在过渡金属核部位周围
    • US06396104B2
    • 2002-05-28
    • US09755679
    • 2001-01-04
    • Masashi MaekawaYukihiko Nakata
    • Masashi MaekawaYukihiko Nakata
    • H01L2701
    • H01L21/02672H01L21/02529H01L21/02532H01L21/2022H01L29/458H01L29/66757H01L29/78675
    • A method has been provided to form a sheet of large grain crystallized silicon, in an early stage of transistor production, before the areas of the source and drain are defined. The method takes advantage of high annealing temperatures and transition metals to speed the lateral growth of silicide. By using higher temperatures, the number of amorphous enclaves is minimized and the transition metal nucleation site can be made small. A small transition metal nucleation site, in turn, can be more easily located near the center of a transistor, or where it is convenient. After annealing, the areas close to the silicide nucleation site are transformed into polycrystalline with a high electron mobility, desirable for the formation of source/drain and channel regions. Silicide products, away from the transistor active areas, are etched away when the area of the source and drain are defined. A product by process using the method of the above-described invention is also provided.
    • 在源极和漏极的区域被限定之前,已经提供了在晶体管制造的早期阶段形成大晶粒结晶硅片的方法。 该方法利用高退火温度和过渡金属来加速硅化物的横向生长。 通过使用较高的温度,非晶层的数量被最小化,并且可以使过渡金属成核位置变小。 反过来,小的过渡金属成核位置可以更容易地位于晶体管的中心附近,或者在其方便的地方。 在退火之后,接近硅化物成核位置的区域被转化为具有高电子迁移率的多晶,对于形成源极/漏极和沟道区域是期望的。 当定义源极和漏极的区域时,远离晶体管有源区的硅化物产物被蚀刻掉。 还提供了使用上述发明的方法的方法的产品。
    • 39. 发明授权
    • Selected site, metal-induced, continuous crystallization method
    • 选择位点,金属诱导,连续结晶法
    • US06228693B1
    • 2001-05-08
    • US09092831
    • 1998-06-05
    • Masashi MaekawaYukihiko Nakata
    • Masashi MaekawaYukihiko Nakata
    • H01L21324
    • H01L21/02672H01L21/02529H01L21/02532H01L21/2022H01L29/458H01L29/66757H01L29/78675
    • A method has been provided to form a sheet of large grain crystallized silicon, in an early stage of transistor production, before the areas of the source and drain are defined. The method takes advantage of high annealing temperatures and transition metals to speed the lateral growth of silicide. By using higher temperatures, the number of amorphous enclaves is minimized and the transition metal nucleation site can be made small. A small transition metal nucleation site, in turn, can be more easily located near the center of a transistor, or where it is convenient. After annealing, the areas close to the silicide nucleation site are transformed into polycrystalline with a high electron mobility, desirable for the formation of source/drain and channel regions. Silicide products, away from the transistor active areas, are etched away when the area of the source and drain are defined. A product by process using the method of the above-described invention is also provided.
    • 在源极和漏极的区域被限定之前,已经提供了在晶体管制造的早期阶段形成大晶粒结晶硅片的方法。 该方法利用高退火温度和过渡金属来加速硅化物的横向生长。 通过使用较高的温度,非晶层的数量被最小化,并且可以使过渡金属成核位置变小。 反过来,小的过渡金属成核位置可以更容易地位于晶体管的中心附近,或者在其方便的地方。 在退火之后,接近硅化物成核位置的区域被转化为具有高电子迁移率的多晶,对于形成源极/漏极和沟道区域是期望的。 当定义源极和漏极的区域时,远离晶体管有源区的硅化物产物被蚀刻掉。 还提供了使用上述发明的方法的方法的产品。
    • 40. 发明授权
    • Fabrication of a thin film transistor and production of a liquid display
apparatus
    • 制造薄膜晶体管和制造液体显示装置
    • US6078059A
    • 2000-06-20
    • US948141
    • 1997-10-09
    • Yukihiko Nakata
    • Yukihiko Nakata
    • C23C16/24C23C16/50C23C16/509C23C16/54H01L21/20H01L21/30H01L21/336H01L21/77H01L21/84H01L29/786H01L29/78H01L33/00
    • H01L21/2022C23C16/24C23C16/5096C23C16/54H01L21/3003H01L27/1214H01L29/66765H01L29/78678
    • A thin film transistor includes: an insulating film having a surface; a semiconductor film formed on the surface of the insulating film; a source electrode and a drain electrode which are in contact with the semiconductor film; and a gate electrode which is electrically insulated from the semiconductor film. In the thin film transistor, a portion of the semiconductor film at distances of less than 500 angstroms from the surface of the insulating film contains at least silicon including a microcrystalline structure having a conductivity of 5.times.10.sup.-9 S/cm or more. Also, a method for fabricating such a thin film transistor is disclosed. The method includes a step of forming a semiconductor film including a silicon layer having a microcrystalline structure by repeatedly performing the following steps (1) and (2): (1) forming a silicon layer on an insulating film by decomposing a material gas including Si which is introduced into a reaction chamber of a plasma chemical vapor deposition apparatus; and (2) microcrystallizing the silicon layer by introducing the hydrogen gas into the chamber to perform a hydrogen plasma treatment for the silicon layer.
    • 薄膜晶体管包括:具有表面的绝缘膜; 形成在所述绝缘膜的表面上的半导体膜; 源电极和漏电极,与半导体膜接触; 以及与半导体膜电绝缘的栅电极。 在薄膜晶体管中,距离绝缘膜表面小于500埃的半导体膜的一部分至少含有包含导电率为5×10 -9 S / cm以上的微晶结构的硅。 另外,公开了一种制造这种薄膜晶体管的方法。 该方法包括通过重复执行以下步骤(1)和(2)来形成包括具有微晶结构的硅层的半导体膜的步骤:(1)通过分解包含Si的材料气体在绝缘膜上形成硅层 将其引入到等离子体化学气相沉积装置的反应室中; 和(2)通过将氢气引入室中来对硅层进行微晶化,以对硅层进行氢等离子体处理。