Semiconductor device having multi-level interconnection structure
    2.
    发明授权
    Semiconductor device having multi-level interconnection structure 失效
    具有多层互连结构的半导体器件

    公开(公告)号:US5514910A

    公开(公告)日:1996-05-07

    申请号:US364226

    申请日:1994-12-27

    申请人: Kuniaki Koyama

    发明人: Kuniaki Koyama

    摘要: A semiconductor device comprises a silicon via-plug within a fine via-hole in direct contact with an inner wall of the via-hole. A metal silicide layer is formed between an interconnection layer and the silicon plug as well as between the silicon plug and a diffused layer formed in a substrate. Shape defects and excessive stresses formed within a fine via-hole are reduced because the via-hole is filled with the silicon plug substantially without a metallic film or a metal silicide film on a sidewall. The metal silicide film is formed by a heat treatment through silicidation reaction.

    摘要翻译: 半导体器件包括与通孔的内壁直接接触的细通孔内的硅通孔。 在互连层和硅插塞之间以及在硅插头和形成在衬底中的扩散层之间形成金属硅化物层。 由于通孔填充有基本上没有金属膜的硅插塞或侧壁上的金属硅化物膜,所以在细通孔内形成的形状缺陷和过大的应力减小。 金属硅化物膜通过硅化反应的热处理形成。

    Method for planarization of an integrated circuit
    3.
    发明授权
    Method for planarization of an integrated circuit 失效
    集成电路平面化方法

    公开(公告)号:US5485035A

    公开(公告)日:1996-01-16

    申请号:US174430

    申请日:1993-12-28

    CPC分类号: H01L21/76819

    摘要: A method for planarization of an integrated circuit. After a first conducting layer is deposited and patterned, a first insulating layer is deposited over the device. A planarizing layer is then deposited over the integrated circuit and etched back. Portions of the planarizing layer may remain in the lower topographical regions of the first insulating layer to planarize the surface of the device. A second insulating layer is then deposited over the integrated circuit, followed by a third insulating layer. A contact via is formed through the layers to expose a portion of the first conducting layer. A second conducting layer can now be deposited and patterned on the device to make electrical contact with the first conducting layer.

    摘要翻译: 一种集成电路的平坦化方法。 在沉积和图案化第一导电层之后,在器件上沉积第一绝缘层。 然后将平坦化层沉积在集成电路上并被回蚀刻。 平坦化层的一部分可以保留在第一绝缘层的下部形貌区域中,以使器件的表面平坦化。 然后在集成电路上沉积第二绝缘层,随后沉积第三绝缘层。 通过这些层形成接触通孔以暴露第一导电层的一部分。 现在可以在器件上沉积和图案化第二导电层以与第一导电层电接触。

    CMOS integrated circuit having improved power-supply filtering
    6.
    发明授权
    CMOS integrated circuit having improved power-supply filtering 失效
    CMOS集成电路具有改进的电源滤波

    公开(公告)号:US5444288A

    公开(公告)日:1995-08-22

    申请号:US270091

    申请日:1994-07-01

    申请人: Eino Jacobs

    发明人: Eino Jacobs

    CPC分类号: H01L27/0218 H01L27/11807

    摘要: An important problem in large integrated circuits is constituted by noise superimposed on the supply. This noise is particularly caused by switching of switching elements such as flipflops, and by heavily loaded output stages. These elements cause current peaks which may give rise to comparatively great fluctuations in voltage. This problem is solved at least to a great extent in CMOS circuits with standard cells or with custom layout blocks by means of an additional decoupling capacitance in the form of an extra well in the routing channels. The decoupling capacitance may be positioned immediately adjacent the switching element, which is favorable for suppressing the supply noise. Since the routing channels are generally not used for providing circuit elements, the chip surface area is not or substantially not increased by this extra capacitance.

    摘要翻译: 大型集成电路中的一个重要问题是由叠加在电源上的噪声构成。 这种噪声特别是由诸如触发器之类的开关元件的切换以及重负载的输出级引起。 这些元件引起电流峰值,这可能导致电压相对较大的波动。 这个问题至少在很大程度上解决了具有标准单元的CMOS电路,或者通过在路由通道中额外的形式的附加去耦电容来定制布局块。 去耦电容可以紧邻开关元件定位,这有利于抑制电源噪声。 由于路由通道通常不用于提供电路元件,因此该额外的电容不会或基本上不增加芯片表面积。

    Semiconductor device having multi-level wiring
    8.
    发明授权
    Semiconductor device having multi-level wiring 失效
    具有多层布线的半导体器件

    公开(公告)号:US5391921A

    公开(公告)日:1995-02-21

    申请号:US83322

    申请日:1993-06-29

    摘要: A semiconductor device that has a feature in the spatial relationship between the wiring in a multi-level wiring and the intermediate insulating films. In the lower part of the second and/or subsequent levels of wiring there exist intermediate insulating films that have a pattern which is the same as the pattern of the wiring. Because of this arrangement, the intermediate insulating film does not exist between the wiring on the same level. The first structure of the multi-level wiring has the intermediate insulating films formed in wall-like shape, with the lower end of the intermediate insulating films reaching an underlying insulating layer formed on the surface of the semiconductor substrate. The second structure of the multi-level wiring is a quasi air gap metallization structure. As a result of realization of such structures, in the semiconductor device according to the present invention, the parasitic capacitance due to the coupling capacitances between the wiring can be reduced compared with a semiconductor device that has a structure in which the spaces between the wiring are filled with the intermediate films.

    摘要翻译: 具有多层配线中的布线与中间绝缘膜之间的空间关系特征的半导体装置。 在第二和/或随后的布线层的下部存在具有与布线图案相同的图案的中间绝缘膜。 由于这种布置,中间绝缘膜不存在于同一层的布线之间。 多层布线的第一结构具有形成为壁状形状的中间绝缘膜,中间绝缘膜的下端到达形成在半导体基板的表面上的下面的绝缘层。 多层布线的第二结构是准气隙金属化结构。 作为实现这种结构的结果,在本发明的半导体器件中,与具有这样的结构的半导体器件相比,能够减少由于布线之间的耦合电容引起的寄生电容, 填充中间膜。

    Planarizing glass layer spaced from via holes
    9.
    发明授权
    Planarizing glass layer spaced from via holes 失效
    平铺玻璃层与通孔间隔开

    公开(公告)号:US5384483A

    公开(公告)日:1995-01-24

    申请号:US843507

    申请日:1992-02-28

    申请人: Kuei-Wu Huang

    发明人: Kuei-Wu Huang

    CPC分类号: H01L21/76802

    摘要: A method for forming contact vias in a integrated circuit which do not have planarizing material nearby. After a first insulating layer is deposited over the integrated circuit, a planarizing layer is deposited over the first insulating layer. The planarizing layer is etched back and portions of the planarizing layer may remain in the lower topographical regions of the first insulating layer to planarize the surface of the integrated circuit. A first masking layer is then formed over the surface of the integrated circuit. The openings created in the first masking layer have a size which is greater than the size of the contact vias to be formed. The first insulating layer is partially etched into so that portions of the planarizing layer near the locations of the contact vias are removed. The first masking layer is then removed, and a second insulating layer is deposited over the integrated circuit. A second masking layer having openings which define the locations of the contact vias to be created is then formed over the second insulating layer. The size of the openings in the second masking layer are smaller than the size of the openings in the first masking layer. The contact vias are then formed through the first and second insulating layers.

    摘要翻译: 一种在不具有平面化材料的集成电路中形成接触孔的方法。 在集成电路上沉积第一绝缘层之后,在第一绝缘层上沉积平坦化层。 平坦化层被回蚀刻,平坦化层的部分可以保留在第一绝缘层的下部形貌区域中,以使集成电路的表面平坦化。 然后在集成电路的表面上形成第一掩模层。 在第一掩模层中产生的开口的尺寸大于要形成的接触孔的尺寸。 部分地蚀刻第一绝缘层,使得在接触通孔的位置附近的平坦化层的部分被去除。 然后去除第一掩模层,并且在集成电路上沉积第二绝缘层。 然后在第二绝缘层上形成具有限定要产生的接触孔的位置的开口的第二掩蔽层。 第二掩模层中的开口的尺寸小于第一掩模层中的开口的尺寸。 然后通过第一绝缘层和第二绝缘层形成接触孔。