Structure and method of forming vias
    4.
    发明授权
    Structure and method of forming vias 失效
    形成通孔的结构和方法

    公开(公告)号:US5847457A

    公开(公告)日:1998-12-08

    申请号:US738040

    申请日:1996-10-24

    IPC分类号: H01L23/522 H01L23/48

    CPC分类号: H01L23/5226 H01L2924/0002

    摘要: A method is provided for forming a contact opening or via of a semiconductor integrated circuit, and an integrated circuit formed according to the same. A first metal region is formed over an underlying region. A first insulating layer is formed over the integrated circuit. A second insulating layer is then formed over the first insulating layer. A portion of the second insulating layer is etched to expose a portion of the first insulating layer wherein the exposed first insulating layer and the remaining second insulating layer form a substantially planar surface. A metal oxide layer is formed over the exposed first insulating layer and the remaining second insulating layer. A photoresist layer is formed and patterned over the metal oxide layer. The metal oxide layer is then selectively etched to form a via exposing a portion of the first insulating layer. The first insulating layer in the via is then selectively etched to expose a portion of the first metal region. The photoresist layer is removed and a second metal layer is then formed over the metal oxide layer and in the via contacting the first metal region.

    摘要翻译: 提供一种用于形成半导体集成电路的接触开口或通路的方法,以及根据该集成电路形成的集成电路。 在下面的区域上形成第一金属区域。 在集成电路上形成第一绝缘层。 然后在第一绝缘层上形成第二绝缘层。 蚀刻第二绝缘层的一部分以暴露第一绝缘层的一部分,其中暴露的第一绝缘层和剩余的第二绝缘层形成基本平坦的表面。 在暴露的第一绝缘层和剩余的第二绝缘层上形成金属氧化物层。 在金属氧化物层上形成并图案化光致抗蚀剂层。 然后选择性地蚀刻金属氧化物层以形成露出第一绝缘层的一部分的通孔。 然后选择性地蚀刻通孔中的第一绝缘层以暴露第一金属区域的一部分。 去除光致抗蚀剂层,然后在金属氧化物层上形成第二金属层,并在通孔中与第一金属区接触。

    Method of forming vias
    5.
    发明授权
    Method of forming vias 失效
    形成通孔的方法

    公开(公告)号:US5593921A

    公开(公告)日:1997-01-14

    申请号:US438167

    申请日:1995-05-09

    摘要: A method is provided for forming a contact opening or via of a semiconductor integrated circuit, and an integrated circuit formed according to the same. A first metal region is formed over an underlying region. A first insulating layer is formed over the integrated circuit. A second insulating layer is then formed over the first insulating layer. A portion of the second insulating layer is etched to expose a portion of the first insulating layer wherein the exposed first insulating layer and the remaining second insulating layer form a substantially planar surface. A metal oxide layer is formed over the exposed first insulating layer and the remaining second insulating layer. A photoresist layer is formed and patterned over the metal oxide layer. The metal oxide layer is then selectively etched to form a via exposing a portion of the first insulating layer. The first insulating layer in the via is then selectively etched to expose a portion of the first metal region. The photoresist layer is removed and a second metal layer is then formed over the metal oxide layer and in the via contacting the first metal region.

    摘要翻译: 提供一种用于形成半导体集成电路的接触开口或通路的方法,以及根据该集成电路形成的集成电路。 在下面的区域上形成第一金属区域。 在集成电路上形成第一绝缘层。 然后在第一绝缘层上形成第二绝缘层。 蚀刻第二绝缘层的一部分以暴露第一绝缘层的一部分,其中暴露的第一绝缘层和剩余的第二绝缘层形成基本平坦的表面。 在暴露的第一绝缘层和剩余的第二绝缘层上形成金属氧化物层。 在金属氧化物层上形成并图案化光致抗蚀剂层。 然后选择性地蚀刻金属氧化物层以形成露出第一绝缘层的一部分的通孔。 然后选择性地蚀刻通孔中的第一绝缘层以暴露第一金属区域的一部分。 去除光致抗蚀剂层,然后在金属氧化物层上形成第二金属层,并在通孔中与第一金属区接触。

    Semiconductor contact via structure having amorphous silicon side walls
    6.
    发明授权
    Semiconductor contact via structure having amorphous silicon side walls 失效
    具有非晶硅侧壁的半导体接触通孔结构

    公开(公告)号:US5317192A

    公开(公告)日:1994-05-31

    申请号:US879190

    申请日:1992-05-06

    摘要: A method is provided for forming an integrated circuit contact structure. A conductive region is formed on a semiconductor device. Thereafter an insulating layer is formed over the conductive region. An opening is then formed through the insulating region to the conductive region. A thin barrier layer is deposited over the integrated circuit contact structure. A portion of the thin barrier layer is removed by backsputtering the integrated circuit contact structure so that only a thin barrier sidewall remains. Finally, a conductive metal layer is deposited over the integrated circuit contact structure. In one embodiment, the integrated circuit contact structure is baked before the conductive metal layer is deposited.

    摘要翻译: 提供了一种用于形成集成电路接触结构的方法。 在半导体器件上形成导电区域。 此后,在导电区域上形成绝缘层。 然后通过绝缘区域形成到导电区域的开口。 薄的势垒层沉积在集成电路接触结构上。 通过反向溅射集成电路接触结构来去除薄势垒层的一部分,使得只有薄的阻挡侧壁保留。 最后,在集成电路接触结构上沉积导电金属层。 在一个实施例中,在沉积导电金属层之前烘烤集成电路接触结构。

    Semiconductor contact via structure and method
    7.
    发明授权
    Semiconductor contact via structure and method 失效
    半导体接触通过结构和方法

    公开(公告)号:US5444019A

    公开(公告)日:1995-08-22

    申请号:US157571

    申请日:1993-11-24

    摘要: A method is provided for forming an integrated circuit contact structure. A conductive region is formed on a semiconductor device. Thereafter an insulating layer is formed over the conductive region. An opening is then formed through the insulating region to the conductive region. A thin barrier layer is deposited over the integrated circuit contact structure. A portion of the thin barrier layer is removed by backsputtering the integrated circuit contact structure so that only a thin barrier sidewall remains. Finally, a conductive metal layer is deposited over the integrated circuit contact structure. In one embodiment, the integrated circuit contact structure is baked before the conductive metal layer is deposited.

    摘要翻译: 提供了一种用于形成集成电路接触结构的方法。 在半导体器件上形成导电区域。 此后,在导电区域上形成绝缘层。 然后通过绝缘区域形成到导电区域的开口。 薄的势垒层沉积在集成电路接触结构上。 通过反向溅射集成电路接触结构来去除薄势垒层的一部分,使得只有薄的阻挡侧壁保留。 最后,在集成电路接触结构上沉积导电金属层。 在一个实施例中,在沉积导电金属层之前烘烤集成电路接触结构。

    Transistor spacer etch pinpoint structure
    8.
    发明授权
    Transistor spacer etch pinpoint structure 失效
    晶体管间隔蚀刻精确点结构

    公开(公告)号:US5521411A

    公开(公告)日:1996-05-28

    申请号:US271565

    申请日:1994-07-07

    摘要: A method is provided for forming a transistor spacer etch endpoint structure of an integrated circuit, and an integrated circuit formed according to the same. A gate is formed over a portion of a substrate. A dielectric layer is formed over the integrated circuit and an oxide layer is formed over the dielectric layer. the oxide layer is patterned and etched to form sidewall oxide spacers on each side of the gate and over a portion of the dielectric layer. The dielectric layer not covered by the sidewall oxide spacers is then removed.

    摘要翻译: 提供一种用于形成集成电路的晶体管间隔物蚀刻端点结构的方法,以及根据该集成电路形成的集成电路。 栅极形成在衬底的一部分上。 在集成电路上形成电介质层,并且在电介质层上形成氧化物层。 对氧化物层进行图案化和蚀刻以在栅极的每一侧和电介质层的一部分上形成侧壁氧化物间隔物。 然后除去未被侧壁氧化物间隔物覆盖的电介质层。

    Interconnect and resistor for integrated circuits
    9.
    发明授权
    Interconnect and resistor for integrated circuits 失效
    集成电路的互连和电阻

    公开(公告)号:US5348901A

    公开(公告)日:1994-09-20

    申请号:US911167

    申请日:1992-07-09

    摘要: A method is provided for forming a polycrystalline silicon resistive load element of a semiconductor integrated circuit, and an integrated circuit formed according to the same. A lightly doped first conductive layer having a conductivity of a first type. A first oxide layer is formed over the integrated circuit with a first opening therethrough exposing a portion of the first conductive layer. Using the first oxide layer as a mask, the exposed portion of the first conductive layer is then implanted with a dopant of a second conductivity type to form a junction between the exposed portion and the portion covered by the mask. A second oxide region is then formed on a portion of the first oxide layer in the first opening, over the junction and over a portion of the exposed first conductive layer adjacent to the junction. A silicide is formed over the exposed portion of the first conductive layer.

    摘要翻译: 提供一种用于形成半导体集成电路的多晶硅电阻性负载元件的方法和根据该集成电路形成的集成电路。 具有第一类型的导电性的轻掺杂的第一导电层。 在集成电路上形成第一氧化物层,其中第一开口穿过其暴露第一导电层的一部分。 使用第一氧化物层作为掩模,然后用第二导电类型的掺杂剂注入第一导电层的暴露部分,以形成暴露部分和被掩模覆盖的部分之间的结。 然后在第一开口中的第一氧化物层的一部分上形成第二氧化物区域,并且在接合处以及暴露的第一导电层的与接合部相邻的部分上形成第二氧化物区域。 在第一导电层的暴露部分上形成硅化物。

    Method of forming a planar contact with a void
    10.
    发明授权
    Method of forming a planar contact with a void 失效
    与空隙形成平面接触的方法

    公开(公告)号:US5571752A

    公开(公告)日:1996-11-05

    申请号:US370456

    申请日:1995-01-09

    摘要: A method is provided for patterning a submicron semiconductor layer of an integrated circuit, and an integrated circuit formed according to the same. A first conductive structure is formed over the integrated circuit. A dielectric is formed over the first conductive structure having a contact opening exposing a portion of the underlying first conductive layer. A barrier layer is formed in the bottom of the contact opening. A second, substantially conformal conductive layer is formed by chemical vapor deposition over the dielectric layer; along the sidewalls and in the bottom of the contact opening. A third conductive layer is then formed over the second conductive layer wherein the third conductive layer does not fill the contact opening. The second and third conductive layers are etched to form an interconnect substantially over the contact opening.

    摘要翻译: 提供了用于图案化集成电路的亚微米半导体层的方法,以及根据该集成电路形成的集成电路。 在集成电路上形成第一导电结构。 在第一导电结构上形成电介质,其具有暴露下面的第一导电层的一部分的接触开口。 阻挡层形成在接触开口的底部。 通过化学气相沉积在介电层上形成第二基本上保形的导电层; 沿着接触开口的侧壁和底部。 然后在第二导电层上形成第三导电层,其中第三导电层不填充接触开口。 第二和第三导电层被蚀刻以形成基本上在接触开口上的互连。