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    • 2. 发明公开
    • FLASH MEMORY AND FABRICATING METHOD THEREOF
    • FLASH-SPEICHER UND HERSTELLUNGSVERFAHRENDAFÜR
    • EP3163606A1
    • 2017-05-03
    • EP16194585
    • 2016-10-19
    • SEMICONDUCTOR MFG INT CORP (SHANGHAI)SEMICONDUCTOR MFG INT CORP (BEIJING)
    • CHEN LIANGCHIU SHENG FEN
    • H01L21/768H01L27/11524
    • H01L27/11524H01L21/02164H01L21/02208H01L21/02271H01L21/02337H01L21/02359H01L21/31116H01L21/764H01L21/7682H01L27/11534H01L28/00H01L29/0649H01L29/7883
    • In some embodiments, a flash memory and a fabricating method thereof is provided. The method includes proving a substrate including multiple memory transistors (101) and selecting transistors (102); forming a functional layer (13) covering outer surfaces of the memory transistors and selecting transistors, and surfaces of the substrate between adjacent memory transistors and selecting transistors; performing a surface roughening treatment to the functional layer to provide a roughed surface of the functional layer that absorbs water; and forming a dielectric layer (14) using a chemical vapor deposition (CVD) process, the absorbed water is evaporated from the functional layer during the CVD process to form an upward air flow that resists the deposition of the dielectric layer, such that air gaps (15) are formed between adjacent memory transistors, and the dielectric layer covers top surfaces of the plurality of memory transistors and selecting transistors and fills gaps between each selecting transistor and corresponding adjacent memory transistor.
    • 在一些实施例中,提供了一种闪存及其制造方法。 该方法包括提供包括多个存储器晶体管(101)和选择晶体管(102)的衬底; 形成覆盖存储器晶体管的外表面并选择晶体管的功能层(13),以及相邻存储器晶体管之间的衬底表面并选择晶体管; 对功能层进行表面粗糙化处理以提供吸收水的功能层的粗糙表面; 并使用化学气相沉积(CVD)工艺形成电介质层(14),在CVD工艺期间吸收的水从功能层蒸发以形成抵抗电介质层沉积的向上气流,使得气隙 (15)形成在相邻的存储器晶体管之间,并且所述电介质层覆盖所述多个存储器晶体管的顶表面并且选择晶体管并且填充每个选择晶体管与对应的相邻存储器晶体管之间的间隙。