摘要:
An integrated circuit device, e.g., a memory device, includes a substrate, a first insulation layer on the substrate, and a contact pad disposed in the first insulation layer in direct contact with the substrate. A second insulation layer is disposed on the first insulation layer. A conductive pattern, e.g., a damascene bit line, is disposed in the second insulation layer. A conductive plug extends through the second insulation layer to contact the contact pad and is self-aligned to the conductive pattern. An insulation film may separate the conductive pattern and the conductive plug. A glue layer may be disposed between the conductive pattern and the second insulation layer. The device may further include a third insulation layer on the second insulation layer and the conductive pattern, and the conductive plug may extend through the second and third insulation layers.
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:
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:
A metal contact in a semiconductor device is formed by forming an insulating layer having a contact hole therein on a silicon substrate. A cobalt layer is formed on a bottom and inner walls of the contact hole. A cobalt silicide layer is formed at the bottom of the contact hole while forming a titanium layer on the cobalt layer. A plug is formed on the titanium layer so as to fill the contact hole.
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。
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:
An integrated circuit device, e.g., a memory device, includes a substrate, a first insulation layer on the substrate, and a contact pad disposed in the first insulation layer in direct contact with the substrate. A second insulation layer is disposed on the first insulation layer. A conductive pattern, e.g., a damascene bit line, is disposed in the second insulation layer. A conductive plug extends through the second insulation layer to contact the contact pad and is self-aligned to the conductive pattern. An insulation film may separate the conductive pattern and the conductive plug. A glue layer may be disposed between the conductive pattern and the second insulation layer. The device may further include a third insulation layer on the second insulation layer and the conductive pattern, and the conductive plug may extend through the second and third insulation layers.
摘要:
A gate structure includes a gate insulation layer on a substrate, a polysilicon layer pattern on the gate insulation layer, a composite metal layer pattern on the polysilicon layer pattern, and a metal silicide layer pattern on a sidewall of the composite metal layer pattern.
摘要:
In a method of manufacturing a semiconductor device, a gate structure having a conductive layer pattern is formed on a substrate. The gate structure is then annealed. Oxygen radicals are applied to the gate structure to form an oxide layer on a sidewall of the conductive layer pattern.
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.