Semiconductor Devices Having Transistors with Different Gate Structures and Related Methods
    1.
    发明申请
    Semiconductor Devices Having Transistors with Different Gate Structures and Related Methods 审中-公开
    具有不同栅极结构的晶体管的半导体器件及相关方法

    公开(公告)号:US20080116530A1

    公开(公告)日:2008-05-22

    申请号:US11855413

    申请日:2007-09-14

    IPC分类号: H01L29/94 H01L21/8238

    摘要: A semiconductor device may include a semiconductor substrate and first and second transistors. The first transistor may have a first gate structure on the semiconductor substrate, and the first gate structure may include a first gate insulating layer between a first gate electrode and the semiconductor substrate. The first gate insulating layer may include first and second dielectric materials with the second dielectric material having a greater dielectric constant than the first dielectric material. Moreover, the first gate electrode may be in contact with the second dielectric material. The second transistor may have a second gate structure on the semiconductor substrate, with the second gate structure including a second gate insulating layer between a second gate electrode and the semiconductor substrate. Related methods are also discussed.

    摘要翻译: 半导体器件可以包括半导体衬底和第一和第二晶体管。 第一晶体管可以在半导体衬底上具有第一栅极结构,并且第一栅极结构可以包括在第一栅极电极和半导体衬底之间的第一栅极绝缘层。 第一栅极绝缘层可以包括第一和第二介电材料,其中第二介电材料具有比第一介电材料更大的介电常数。 此外,第一栅电极可以与第二电介质材料接触。 第二晶体管可以在半导体衬底上具有第二栅极结构,其中第二栅极结构包括在第二栅电极和半导体衬底之间的第二栅极绝缘层。 还讨论了相关方法。

    Method for forming metal layer of semiconductor device using metal halide gas
    2.
    发明授权
    Method for forming metal layer of semiconductor device using metal halide gas 有权
    使用金属卤化物气体形成半导体器件的金属层的方法

    公开(公告)号:US06458701B1

    公开(公告)日:2002-10-01

    申请号:US09686622

    申请日:2000-10-12

    IPC分类号: C23L1608

    摘要: A method for forming a metal layer located over a metal underlayer of a semiconductor device, using a metal halogen gas. The method involves supplying a predetermined reaction gas into a reaction chamber for a predetermined period of time prior to deposition of the metal layer. The reaction gas has a higher reactivity with an active halogen element of a metal halogen gas supplied to form the metal layer, compared to a metal element of the metal halogen gas. As the metal halogen gas is supplied into the reaction chamber, the reaction gas reacts with the halogen radicals of the metal halogen gas, so that the metal underlayer is protected from being contaminated by impurities containing the halogen radicals.

    摘要翻译: 一种使用金属卤素气体形成位于半导体器件的金属底层上的金属层的方法。 该方法包括在沉积金属层之前将预定的反应气体提供给反应室预定的时间。 与金属卤素气体的金属元素相比,反应气体与供给的金属卤素气体的活性卤素元素的反应性较高,形成金属层。 当将金属卤素气体供应到反应室中时,反应气体与金属卤素气体的卤素自由基反应,从而保护金属底层免受含有卤素基团的杂质的污染。

    Semiconductor devices having metal layers as barrier layers on upper or lower electrodes of capacitors
    3.
    发明授权
    Semiconductor devices having metal layers as barrier layers on upper or lower electrodes of capacitors 失效
    在电容器的上部或下部电极上具有金属层作为阻挡层的半导体器件

    公开(公告)号:US06590251B2

    公开(公告)日:2003-07-08

    申请号:US09911313

    申请日:2001-07-23

    IPC分类号: H01L27108

    摘要: Semiconductor films include insulating films including contact holes in semiconductor substrates, capacitors comprising lower electrodes formed on conductive material films in the contact holes, high dielectric films formed on the lower electrodes and upper electrodes formed on the high dielectric films, and barrier metal layers positioned between conductive materials in the contact holes and the lower electrodes, the barrier metal layers including metal layers formed in A-B-N structures in which a plurality of atomic layers are stacked by alternatively depositing reactive metal (A), an amorphous combination element (B) for preventing crystallization of the reactive metal (A) and nitrogen (N). The composition ratios of the barrier metal layers are determined by the number of depositions of the atomic layers.

    摘要翻译: 半导体膜包括在半导体衬底中包括接触孔的绝缘膜,包括形成在接触孔中的导电材料膜上的下电极的电容器,形成在下电极上的高电介质膜和形成在高电介质膜上的上电极,以及位于 接触孔和下电极中的导电材料,阻挡金属层包括通过交替沉积反应性金属(A)而堆叠多个原子层的ABN结构中形成的金属层,用于防止结晶的非晶态组合元件(B) 的反应性金属(A)和氮(N)。 阻挡金属层的组成比由原子层的沉积数确定。

    Method of delivering gas into reaction chamber and shower head used to deliver gas
    4.
    发明授权
    Method of delivering gas into reaction chamber and shower head used to deliver gas 有权
    将气体输送到用于输送气体的反应室和淋浴喷头中的方法

    公开(公告)号:US06478872B1

    公开(公告)日:2002-11-12

    申请号:US09467313

    申请日:1999-12-20

    IPC分类号: C30B2500

    摘要: A method of delivering two or more mutually-reactive reaction gases when a predetermined film is deposited on a substrate, and a shower head used in the gas delivery method, function to increase the film deposition rate while preventing formation of contaminating particles. In this method, one reaction gas is delivered toward the edge of the substrate, and the other reaction gases are delivered toward the central portion of the substrate, each of the reaction gases being delivered via an independent gas outlet to prevent the reaction gases from being mixed. In the shower head, separate passages are provided to prevent the first reaction gas from mixing with the other reaction gases by delivering the first reaction gas from outlets formed around the edge of the bottom surface of the shower head. The other reaction gases are delivered from outlets formed in the central portion of the bottom surface of the shower head. Accordingly, one of the mutually-reactive gases is delivered toward the central portion of the substrate, and the others are delivered toward the edge of the substrate.

    摘要翻译: 当将预定的膜沉积在基底上时输送两个或更多个相互反应的反应气体的方法和用于气体输送方法的淋浴头的作用是提高膜沉积速率同时防止污染颗粒的形成。 在该方法中,一个反应气体被输送到基板的边缘,并且其它反应气体被输送到基板的中心部分,每个反应气体经由独立的气体出口输送,以防止反应气体 混合 在喷淋头中,设置分开的通道,以防止第一反应气体与其它反应气体混合,通过从喷淋头底表面的边缘周围形成的出口输送第一反应气体。 其他反应气体从形成在淋浴喷头的底面的中心部分的出口输送。 因此,相互反应的气体中的一种被输送到基板的中心部分,而其它的被传送到基板的边缘。

    Method of manufacturing a barrier metal layer using atomic layer deposition
    5.
    发明授权
    Method of manufacturing a barrier metal layer using atomic layer deposition 有权
    使用原子层沉积制造阻挡金属层的方法

    公开(公告)号:US06399491B2

    公开(公告)日:2002-06-04

    申请号:US09826946

    申请日:2001-04-06

    IPC分类号: H01L2144

    摘要: A method of manufacturing a barrier metal layer uses atomic layer deposition (ALD) as the mechanism for depositing the barrier metal. The method includes supplying a first source gas onto the entire surface of a semiconductor substrate in the form of a pulse, and supplying a second source gas, which reacts with the first source gas, onto the entire surface of the semiconductor substrate in the form of a pulse. In a first embodiment, the pulses overlap in time so that the second source gas reacts with part of the first source gas physically adsorbed at the surface of the semiconductor substrate to thereby form part of the barrier metal layer by chemical vapor deposition whereas another part of the second source gas reacts with the first source gas chemically adsorbed at the surface of the semiconductor substrate to thereby form part of the barrier metal layer by atomic layer deposition. Thus, the deposition rate is greater than if the barrier metal layer were only formed by ALD. In the second embodiment, an impurity-removing gas is used to remove impurities in the barrier metal layer. Thus, even if the gas supply scheme is set up to only use ALD in creating the barrier metal layer, the deposition rate can be increased without the usual accompanying increase in the impurity content of the barrier metal layer.

    摘要翻译: 制造阻挡金属层的方法使用原子层沉积(ALD)作为沉积阻挡金属的机理。 该方法包括以脉冲的形式将第一源气体提供到半导体衬底的整个表面上,并将与第一源气体反应的第二源气体以 一脉 在第一实施例中,脉冲在时间上重叠,使得第二源气体与物理吸附在半导体衬底的表面处的第一源气体的一部分反应,从而通过化学气相沉积形成阻挡金属层的一部分,而另一部分 第二源气体与化学吸附在半导体衬底的表面上的第一源气体反应,从而通过原子层沉积形成阻挡金属层的一部分。 因此,如果阻挡金属层仅由ALD形成,则沉积速率更大。 在第二实施例中,使用杂质去除气体来除去阻挡金属层中的杂质。 因此,即使将气体供给方案设定为仅使用ALD来制造阻挡金属层,也可以提高成膜速度,而​​不会妨碍阻挡金属层的杂质含量的增加。

    Method of forming metal layer using atomic layer deposition and semiconductor device having the metal layer as barrier metal layer or upper or lower electrode of capacitor
    6.
    发明授权
    Method of forming metal layer using atomic layer deposition and semiconductor device having the metal layer as barrier metal layer or upper or lower electrode of capacitor 有权
    使用原子层沉积形成金属层的方法和具有金属层作为阻挡金属层或电容器的上或下电极的半导体器件

    公开(公告)号:US06287965B1

    公开(公告)日:2001-09-11

    申请号:US09511598

    申请日:2000-02-23

    IPC分类号: H01L2144

    摘要: A method of forming a metal layer having excellent thermal and oxidation resistant characteristics using atomic layer deposition is provided. The metal layer includes a reactive metal (A), an element (B) for the amorphous combination between the reactive metal (A) and nitrogen (N), and nitrogen (N). The reactive metal (A) may be titanium (Ti), tantalum (Ta), tungsten (W), zirconium (Zr), hafnium (Hf), molybdenum (Mo) or niobium (Nb). The amorphous combination element (B) may be aluminum (Al), silicon (Si) or boron (B). The metal layer is formed by alternately injecting pulsed source gases for the elements (A, B and N) into a chamber according to atomic layer deposition to thereby alternately stack atomic layers. Accordingly, the composition ratio of a nitrogen compound (A—B—N) of the metal layer can be desirably adjusted just by appropriately determining the number of injection pulses of each source gas. According to the composition ratio, a desirable electrical conductivity and resistance of the metal layer can be accurately obtained. The atomic layers are individually deposited, thereby realizing excellent step coverage even in a complex and compact region. A metal layer formed by atomic layer deposition can be employed as a barrier metal layer, a lower electrode or an upper electrode in a semiconductor device.

    摘要翻译: 提供了使用原子层沉积形成具有优异的耐热和抗氧化特性的金属层的方法。 金属层包括反应性金属(A),用于反应性金属(A)和氮(N)之间的无定形组合的元素(B)和氮(N))。 反应性金属(A)可以是钛(Ti),钽(Ta),钨(W),锆(Zr),铪(Hf),钼(Mo)或铌(Nb)。 无定形组合元件(B)可以是铝(Al),硅(Si)或硼(B)。 通过根据原子层沉积将元件(A,B和N)的脉冲源气体交替地注入到室中来形成金属层,从而交替堆叠原子层。 因此,通过适当确定各源气体的喷射脉冲数,可以适当地调整金属层的氮化合物(A-B-N)的组成比。 根据组成比,可以准确地获得金属层所需的导电性和电阻。 原子层分别沉积,即使在复杂和紧凑的区域中也能实现优异的阶梯覆盖。 通过原子层沉积形成的金属层可以用作半导体器件中的阻挡金属层,下电极或上电极。

    METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
    7.
    发明申请
    METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE 有权
    制造半导体器件的方法

    公开(公告)号:US20130052787A1

    公开(公告)日:2013-02-28

    申请号:US13494328

    申请日:2012-06-12

    IPC分类号: H01L21/02 H01L21/20

    摘要: A method of manufacturing a semiconductor device includes forming a bit line on a substrate comprising an active region; forming an interlayer insulating layer covering the bit line on the substrate; forming a first hole at a location of the active region through the interlayer insulating layer; forming a dummy contact layer by filling the first hole; forming a mold layer on the interlayer insulating layer and the dummy contact layer; forming a second hole at a location of the dummy contact layer through the mold layer; removing the dummy contact layer in the first hole through the second hole; forming an epitaxial layer on a portion of the active region, which is exposed at a lower surface of the first hole; and forming a lower electrode on internal surfaces of the first hole and the second hole.

    摘要翻译: 制造半导体器件的方法包括在包括有源区的衬底上形成位线; 形成覆盖所述基板上的所述位线的层间绝缘层; 在有源区的位置通过层间绝缘层形成第一孔; 通过填充第一孔形成虚拟接触层; 在层间绝缘层和虚拟接触层上形成模层; 在所述模拟接触层的位置处通过所述模制层形成第二孔; 通过第二孔去除第一孔中的虚拟接触层; 在所述有源区的在所述第一孔的下表面处露出的部分上形成外延层; 以及在所述第一孔和所述第二孔的内表面上形成下电极。

    Method of manufacturing semiconductor device
    8.
    发明授权
    Method of manufacturing semiconductor device 有权
    制造半导体器件的方法

    公开(公告)号:US08748254B2

    公开(公告)日:2014-06-10

    申请号:US13494328

    申请日:2012-06-12

    IPC分类号: H01L21/00

    摘要: A method of manufacturing a semiconductor device includes forming a bit line on a substrate comprising an active region; forming an interlayer insulating layer covering the bit line on the substrate; forming a first hole at a location of the active region through the interlayer insulating layer; forming a dummy contact layer by filling the first hole; forming a mold layer on the interlayer insulating layer and the dummy contact layer; forming a second hole at a location of the dummy contact layer through the mold layer; removing the dummy contact layer in the first hole through the second hole; forming an epitaxial layer on a portion of the active region, which is exposed at a lower surface of the first hole; and forming a lower electrode on internal surfaces of the first hole and the second hole.

    摘要翻译: 制造半导体器件的方法包括在包括有源区的衬底上形成位线; 形成覆盖所述基板上的所述位线的层间绝缘层; 在有源区的位置通过层间绝缘层形成第一孔; 通过填充第一孔形成虚拟接触层; 在层间绝缘层和虚拟接触层上形成模层; 在所述模拟接触层的位置处通过所述模制层形成第二孔; 通过第二孔去除第一孔中的虚拟接触层; 在所述有源区的在所述第一孔的下表面处露出的部分上形成外延层; 以及在所述第一孔和所述第二孔的内表面上形成下电极。