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    • 8. 发明授权
    • Deposition of thin film dielectrics and light emitting nano-layer structures
    • 沉积薄膜电介质和发光纳米层结构
    • US09064693B2
    • 2015-06-23
    • US13581281
    • 2010-03-01
    • Jean-Paul NoelMing Li
    • Jean-Paul NoelMing Li
    • H01L21/311H01L21/31H01L21/02C23C16/02C23C16/34C23C16/40C23C16/56H05B33/10
    • H01L21/02164C23C16/0218C23C16/345C23C16/401C23C16/56H01L21/0217H01L21/022H01L21/02312H01L21/02337H05B33/10
    • Deposition of thin film dielectrics, and in particular for chemical vapor deposition of nano-layer structures comprising multiple layers of dielectrics, such as, silicon dioxide, silicon nitride, silicon oxynitride, and/or other silicon compatible dielectrics includes post-deposition surface treatment of deposited layers with a metal or semiconductor source gas, e.g., a silicon source gas. Deposition of silicon containing dielectrics comprises silane-based chemistry for deposition of doped or undoped dielectric layers, and surface treatment of deposited dielectric layers with silane. Surface treatment provides dielectric layers with improved layer-to-layer uniformity and lateral continuity, and substantially atomically flat dielectric layers suitable for multilayer structures for electroluminescent light emitting structures, e.g., active layers containing rare earth containing luminescent centers. Doped or undoped dielectric thin films or nano-layer dielectric structures may also be provided for other semiconductor devices.
    • 薄膜电介质的沉积,特别是用于化学气相沉积的包括多层电介质的纳米层结构,例如二氧化硅,氮化硅,氮氧化硅和/或其它与硅相容的电介质包括后沉积表面处理 具有金属或半导体源气体的沉积层,例如硅源气体。 含硅电介质的沉积包括用于沉积掺杂或未掺杂电介质层的硅烷基化学,以及用硅烷表面处理沉积的介电层。 表面处理提供具有改进的层间均匀性和横向连续性的电介质层,以及适用于电致发光发光结构的多层结构的基本上原子平坦的介电层,例如含有含稀土含有发光中心的活性层。 也可以为其它半导体器件提供掺杂或未掺杂的电介质薄膜或纳米层介电结构。
    • 9. 发明授权
    • Process for preparing graphene based on metal film-assisted annealing and the reaction with Cl2
    • 基于金属膜辅助退火和与Cl2反应制备石墨烯的方法
    • US09048092B2
    • 2015-06-02
    • US14350282
    • 2012-09-03
    • Hui GuoKeji ZhangYuming ZhangPengfei DengTianmin Lei
    • Hui GuoKeji ZhangYuming ZhangPengfei DengTianmin Lei
    • H01L21/44H01L21/02C23C16/26C01B31/04C23C16/02C23C16/56B82Y30/00B82Y40/00
    • H01L21/02527B82Y30/00B82Y40/00C01B32/184C01B2204/32C23C16/0218C23C16/0272C23C16/26C23C16/56C30B25/02C30B29/36H01L21/02381H01L21/0262H01L21/02664
    • A method for preparing graphene by reaction with Cl2 based on annealing with assistant metal film is provided, comprising the following steps: applying normal wash to a Si-substrate, then putting the Si-substrate into a reaction chamber of a CVD system and evacuating, rising the temperature to 950° C.-1150° C. gradually, supplying C3H8 and carbonizing the Si-substrate for 3-10 min; rising the temperature to 1150° C.-1350° C. rapidly, supplying C3H8 and SiH4, growing a 3C—SiC hetero-epitaxial film on the carbonized layer, and then reducing the temperature to ambient temperature under the protection of H2 gradually, introducing the grown sample wafer of 3C—SiC into a quartz tube, heating to 700-1100° C., supplying mixed gas of Ar and Cl2, and reacting Cl2 with 3C—SiC to generate a carbon film, applying the sample wafer of carbon film on a metal film, annealing at 900° C.-1100° C. for 10-30 min to reconstruct the carbon film into graphene; and taking out of the metal film from the sample wafer of graphene to obtain large area graphene. The graphene obtained by the method has large area, smooth surface, good continuity, and low porosity; and the product can be used to seal gas and liquid.
    • 提供了一种基于与辅助金属膜退火的与Cl2反应制备石墨烯的方法,包括以下步骤:对Si衬底进行常规洗涤,然后将Si衬底放入CVD系统的反应室中并排空, 逐渐升温至950℃-1150℃,供给C3H8,并将Si衬底碳化3-10分钟; 将温度迅速升高至1150℃-1350℃,供应C3H8和SiH4,在碳化层上生长3C-SiC异质外延膜,然后在H2的保护下将温度降至环境温度,引入 将生长的3C-SiC的样品晶片加入石英管中,加热至700-1100℃,供应Ar和Cl2的混合气体,并使Cl2与3C-SiC反应以产生碳膜,涂覆碳膜样品晶片 在金属膜上,在900℃-1100℃退火10-30分钟以将碳膜重构成石墨烯; 并从石墨烯的样品晶片中取出金属膜,以获得大面积的石墨烯。 该方法获得的石墨烯面积大,表面光滑,连续性好,孔隙率低; 该产品可用于密封气体和液体。