Semiconductor memory device and method of manufacturing the same
    32.
    发明申请
    Semiconductor memory device and method of manufacturing the same 有权
    半导体存储器件及其制造方法

    公开(公告)号:US20080079056A1

    公开(公告)日:2008-04-03

    申请号:US11648595

    申请日:2007-01-03

    IPC分类号: H01L29/76

    摘要: A semiconductor memory device, e.g., a charge trapping type non-volatile memory device, may include a charge trapping structure formed in a first area of a substrate and a gate structure formed in a second area of the substrate. The charge trapping structure may include a tunnel oxide layer pattern, a charge trapping layer pattern and a dielectric layer pattern of aluminum-containing tertiary metal oxide. The gate structure may include a gate oxide layer pattern, a polysilicon layer pattern and an ohmic layer pattern of aluminum-containing tertiary metal silicide. A first electrode and a second electrode may be formed on the charge trapping structure. A lower electrode and an upper electrode may be provided on the gate structure. The dielectric layer pattern may have a higher dielectric constant, and the ohmic layer pattern may have improved thermal stability, thereby enhancing programming and erasing operations of the charge trapping type non-volatile memory device.

    摘要翻译: 半导体存储器件,例如电荷俘获型非易失性存储器件,可以包括形成在衬底的第一区域中的电荷俘获结构和形成在衬底的第二区域中的栅极结构。 电荷捕获结构可以包括隧道氧化物层图案,电荷俘获层图案和含铝三级金属氧化物的介电层图案。 栅极结构可以包括栅极氧化物层图案,多晶硅层图案和含铝三次金属硅化物的欧姆层图案。 第一电极和第二电极可以形成在电荷捕获结构上。 可以在栅极结构上设置下电极和上电极。 电介质层图案可以具有更高的介电常数,并且欧姆层图案可以具有改善的热稳定性,从而增强电荷俘获型非易失性存储器件的编程和擦除操作。

    Methods for fabricating improved gate dielectrics
    33.
    发明申请
    Methods for fabricating improved gate dielectrics 失效
    制造改进的栅极电介质的方法

    公开(公告)号:US20080014700A1

    公开(公告)日:2008-01-17

    申请号:US11806338

    申请日:2007-05-31

    IPC分类号: H01L21/336

    摘要: Disclosed are a variety of methods for increasing the relative thickness in the peripheral or edge regions of gate dielectric patterns to suppress leakage through these regions. The methods provide alternatives to conventional GPOX processes and provide the improved leakage resistance without incurring the degree of increased gate electrode resistance associated with GPOX processes. Each of the methods includes forming a first opening to expose an active area region, forming an oxidation control region on the exposed portion and then forming a second opening whereby a peripheral region free of the oxidation control region is exposed for formation of a gate dielectric layer. The resulting gate dielectric layers are characterized by a thinner central region surrounded or bounded by a thicker peripheral region.

    摘要翻译: 公开了用于增加栅极电介质图案的外围或边缘区域中的相对厚度以抑制这些区域的泄漏的各种方法。 这些方法提供了常规GPOX工艺的替代方案,并提供改进的耐漏电性,而不会导致与GPOX工艺相关的增加的栅电极电阻的程度。 每种方法包括形成第一开口以暴露有源区域区域,在暴露部分上形成氧化控制区域,然后形成第二开口,由此暴露氧化控制区域的外围区域以形成栅极介电层 。 得到的栅极介电层的特征在于由较厚的外围区域包围或界定的较薄的中心区域。

    Multilayer gate electrode, semiconductor device having the same and method of fabricating the same
    35.
    发明申请
    Multilayer gate electrode, semiconductor device having the same and method of fabricating the same 审中-公开
    多层栅电极,与其相同的半导体器件及其制造方法

    公开(公告)号:US20070052043A1

    公开(公告)日:2007-03-08

    申请号:US11516633

    申请日:2006-09-07

    IPC分类号: H01L29/94 H01L21/3205

    摘要: Example embodiments relate to a multilayer gate electrode, a semiconductor device having the same and methods of fabricating the same. Other example embodiments relate to a semiconductor device with a multilayer gate electrode which is relatively stable at higher temperatures, has improved resistance characteristics and improved reliability, and methods of fabricating the same. The multilayer gate electrode may include a polycrystalline semiconductor layer on the gate insulating layer and doped with conductive type impurities, an ohmic contact layer on the polycrystalline semiconductor layer and including tungsten (W1−x) and non-tungsten metal (Mx, x=about 0.01 to about 0.55), a metal barrier layer on the ohmic contact layer and a refractory metal layer on the metal barrier layer. The semiconductor device including a conductive type transistor may include a semiconductor substrate, a conductive type source/drain region in the semiconductor substrate, a gate insulating layer on a channel region between the source/drain regions and the multilayer gate electrode.

    摘要翻译: 示例性实施例涉及多层栅电极,具有该多层栅电极的半导体器件及其制造方法。 其他示例性实施例涉及具有多层栅电极的半导体器件,其在较高温度下相对稳定,具有改善的电阻特性和改善的可靠性,及其制造方法。 多层栅电极可以包括在栅极绝缘层上并掺杂有导电类型杂质的多晶半导体层,多晶半导体层上的欧姆接触层,并且包括钨(W 1-x N) 钨金属(M x x x,x =约0.01至约0.55),欧姆接触层上的金属阻挡层和金属阻挡层上的难熔金属层。 包括导电型晶体管的半导体器件可以包括半导体衬底,半导体衬底中的导电型源极/漏极区域,在源极/漏极区域和多层栅极电极之间的沟道区域上的栅极绝缘层。

    Methods of manufacturing a semiconductor device
    36.
    发明申请
    Methods of manufacturing a semiconductor device 审中-公开
    制造半导体器件的方法

    公开(公告)号:US20060115967A1

    公开(公告)日:2006-06-01

    申请号:US11246791

    申请日:2005-10-07

    IPC分类号: H01L21/8238 H01L21/425

    CPC分类号: H01L21/823828

    摘要: In a method of manufacturing a semiconductor device including a polysilicon layer on which a heat treatment is performed in hydrogen atmosphere, a preliminary polysilicon layer is formed on a semiconductor substrate. Fluorine (F) impurities are implanted onto the preliminary polysilicon layer, so that the preliminary polysilicon layer is formed into a polysilicon layer. A main heat treatment is performed on the polysilicon layer, thereby preventing a void caused by the fluorine (F) in the polysilicon layer. A subsidiary heat treatment is further performed on the polysilicon layer prior to the main heat treatment, thereby activating dopants in the polysilicon layer. Electrical characteristics and performance of a semiconductor device are improved since the void is sufficiently prevented in the polysilicon layer.

    摘要翻译: 在制造包括在氢气氛中进行热处理的多晶硅层的半导体器件的方法中,在半导体衬底上形成初步多晶硅层。 将氟(F)杂质注入到初步多晶硅层上,使得初步多晶硅层形成为多晶硅层。 在多晶硅层上进行主要的热处理,从而防止由多晶硅层中的氟(F)引起的空隙。 在主要热处理之前在多晶硅层上进一步进行辅助热处理,由此激活多晶硅层中的掺杂剂。 改善了半导体器件的电特性和性能,因为在多晶硅层中充分防止了空隙。

    Method for forming contact having low resistivity using porous plug and method for forming semiconductor devices using the same
    40.
    发明申请
    Method for forming contact having low resistivity using porous plug and method for forming semiconductor devices using the same 失效
    使用多孔塞形成具有低电阻率的接触的方法和使用其形成半导体器件的方法

    公开(公告)号:US20050054183A1

    公开(公告)日:2005-03-10

    申请号:US10895190

    申请日:2004-07-19

    申请人: Hee-Sook Park

    发明人: Hee-Sook Park

    摘要: A method for forming a contact of a semiconductor device is disclosed. A first interlevel dielectric (ILD) layer is formed on a conductive region, e.g., an active region. The first ILD layer is etched to form a first contact hole therein to expose the conductive region. The first contact hole is filled with a porous layer having a high etch selectivity with respect to the first ILD layer to form a porous plug therein. Next, a second ILD layer is formed overlying the porous plug. The second ILD layer is etched to form a second contact hole therein to expose the porous plug. The porous plug in the first contact hole is removed. The first and second contact holes are filled with a conductive material to form a contact plug. During this contact formation process, the active region or the conductive region of the semiconductor substrate can be protected with the porous plug. Thus, the electrical characteristics degradation caused by dopant diffusion resulting from a thermal process during contact formation can be avoided.

    摘要翻译: 公开了一种用于形成半导体器件的接触的方法。 在导电区域(例如有源区)上形成第一层间电介质(ILD)层。 蚀刻第一ILD层以在其中形成第一接触孔以暴露导电区域。 第一接触孔填充有相对于第一ILD层具有高蚀刻选择性的多孔层,以在其中形成多孔塞。 接下来,形成覆盖多孔塞的第二ILD层。 蚀刻第二ILD层以在其中形成第二接触孔以暴露多孔塞。 去除第一接触孔中的多孔塞。 第一和第二接触孔填充有导电材料以形成接触塞。 在该接触形成过程中,半导体衬底的有源区或导电区可以用多孔插塞保护。 因此,可以避免在接触形成期间由热处理引起的掺杂剂扩散引起的电特性劣化。