Method for Lowering the Phase Transformation Temperature of a Metal Silicide

    公开(公告)号:CA2118147A1

    公开(公告)日:1995-04-30

    申请号:CA2118147

    申请日:1994-10-14

    Applicant: IBM

    Abstract: The phase transformation temperature of a metal silicide layer formed overlying a silicon layer on a semiconductor wafer is lowered. First, a refractory metal is disposed proximate to the surface of the silicon layer, a precursory metal is deposited in a layer overlying the refractory metal, and the wafer is heated to a temperature sufficient to form the metal silicide from the precursory metal. The precursory metal may be a refractory metal, and is preferably titanium, tungsten, or cobalt. The concentration of the refractory metal at the surface of the silicon layer is preferably less than about 10 atoms/cm . The refractory metal may be Mo, Co, W, Ta, Nb, Ru, or Cr, and more preferably is Mo or Co. The heating step used to form the silicide is performed at a temperature less than about 700 DEG C, and more preferably between about 600-700 DEG C. Optionally, the wafer is annealed following the step of disposing the refractory metal and prior to the step of depositing the precursory metal layer. Preferably, this annealing step is performed at a wafer temperature of at least about 900 DEG C.

    MIM CAPACITOR AND METHOD OF FABRICATING SAME
    34.
    发明申请
    MIM CAPACITOR AND METHOD OF FABRICATING SAME 审中-公开
    MIM电容器及其制造方法

    公开(公告)号:WO2006113158A3

    公开(公告)日:2007-03-01

    申请号:PCT/US2006012904

    申请日:2006-04-07

    Abstract: A damascene MIM capacitor and a method of fabricating the MIM capacitor. The MIM capacitor includes a dielectric layer (140) having top and bottom surfaces; a trench in the dielectric layer, the trench extending from the top surface to the bottom surface of the dielectric layer (140); a first plate of a MIM capacitor comprising a conformal conductive liner (175) formed on all sidewalls and extending along a bottom of the trench, the bottom of the trench coplanar with the bottom surface of the dielectric layer; an insulating layer (190) formed over a top surface of the conformal conductive liner; and a second plate (195) of the MIM capacitor comprising a core conductor in direct physical contact with the insulating layer, the core conductor filling spaces in the trench not filled by the conformal conductive liner and the insulating layer. The method includes forming portions of the MIM capacitor simultaneously with damascene interconnection wires.

    Abstract translation: 一种镶嵌MIM电容器和一种制造MIM电容器的方法。 MIM电容器包括具有顶表面和底表面的电介质层(140) 所述电介质层中的沟槽,所述沟槽从所述介电层(140)的顶表面延伸到所述底表面; MIM电容器的第一板包括形成在所有侧壁上并沿着沟槽的底部延伸的共形导电衬垫(175),沟槽的底部与电介质层的底表面共面; 绝缘层(190),形成在所述共形导电衬垫的顶表面上; 和MIM电容器的第二板(195),其包括与所述绝缘层直接物理接触的芯导体,所述沟槽中的所述芯导体填充空间未被所述共形导电衬垫和所述绝缘层填充。 该方法包括与镶嵌互连线同时形成MIM电容器的一部分。

    INTEGRATED CIRCUIT SYSTEM WITH CARBON ENHANCEMENT

    公开(公告)号:SG165342A1

    公开(公告)日:2010-10-28

    申请号:SG2010064129

    申请日:2008-02-20

    Abstract: An integrated circuit hard mask processing system is provided including providing a substrate having an integrated circuit; forming an interconnect layer over the integrated circuit; applying a low-K dielectric layer over the interconnect layer; forming a via opening through the low-K dielectric layer to the interconnect layer; and forming a carbon implant region around the via opening, a trench opening, or a combination thereof, for protecting the low-K dielectric layer. FIG 1

    INTERCONNECTS WITH IMPROVED TDDB
    36.
    发明专利

    公开(公告)号:SG159483A1

    公开(公告)日:2010-03-30

    申请号:SG2009056896

    申请日:2009-08-26

    Abstract: A method for forming a semiconductor device is presented. A substrate prepared with a dielectric layer formed thereon is provided. A first upper etch stop layer is formed on the dielectric layer. The first upper etch stop layer includes a first dielectric material. The dielectric layer and first upper etch stop layer are patterned to form an interconnect opening. The interconnect opening is filled with a conductive material to form an interconnect. The interconnect and first upper etch stop layer have coplanar top surfaces. A second upper etch stop layer is formed over the coplanar top surfaces. The second upper etch stop layer includes a second material having sufficient adhesion with the first material to reduce diffusion of the conductive material.

    INTEGRATED CIRCUIT SYSTEM WITH CARBON ENHANCEMENT

    公开(公告)号:SG146528A1

    公开(公告)日:2008-10-30

    申请号:SG2008014136

    申请日:2008-02-20

    Abstract: INTEGRATED CIRCUIT SYSTEM WITH CARBON ENHANCEMENT An integrated circuit hard mask processing system is provided including providing a substrate having an integrated circuit; forming an interconnect layer over the integrated circuit; applying a low-K dielectric layer over the interconnect layer; forming a via opening through the low-K dielectric layer to the interconnect layer; and forming a carbon implant region around the via opening, a trench opening, or a combination thereof, for protecting the low-K dielectric layer.

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