公开(公告)号：EP1846947A4

公开(公告)日：2009-04-15

申请号：EP05852630

申请日：2005-12-02

Applicant: IBM

Inventor： VEREECKEN PHILIPPE M ,  BASKER VEERARAGHAVAN ,  CABRAL CYRIL JR ,  COOPER EMANUEL I ,  DELIGIANNI HARIKLIA ,  FRANK MARTIN M ,  JAMMY RAJARAO ,  PARUCHURI VAMSI KRISHNA ,  SAENGER KATHERINE L ,  SHAO XIAOYAN

IPC: H01L21/302 ,  H01L29/745

CPC classification number: H01L21/2885 ,  C25D3/50 ,  C25D5/02 ,  C25D5/024 ,  C25D5/54 ,  C25D7/123 ,  C25D9/04 ,  C25F3/14 ,  H01L21/28079 ,  H01L21/28114 ,  H01L21/76885 ,  H01L29/513 ,  H01L29/517 ,  H01L29/78648

Abstract: A method for electroplating a gate metal (9) or other conducting or semiconducting material on a gate dielectric (2) is provided. The method involves selecting a substrate (3, 4), dielectric layer, and electrolyte solution or melt, wherein the combination of the substrate, dielectric layer, and electrolyte solution or melt allow an electrochemical current to be generated at an interface between the dielectric layer and the electrolyte solution or melt.

公开(公告)号：WO2007112361A3

公开(公告)日：2008-04-10

申请号：PCT/US2007064946

申请日：2007-03-26

Applicant: IBM ,  CABRAL CYRIL JR ,  DELIGIANNI HARIKLIA ,  KNARR RANDOLPH F ,  MALHOTRA SANDRA G ,  ROSSNAGEL STEPHEN ,  SHAO XIAOYAN ,  TOPOL ANNA ,  VEREECKEN PHILIPPE M

Inventor： CABRAL CYRIL JR ,  DELIGIANNI HARIKLIA ,  KNARR RANDOLPH F ,  MALHOTRA SANDRA G ,  ROSSNAGEL STEPHEN ,  SHAO XIAOYAN ,  TOPOL ANNA ,  VEREECKEN PHILIPPE M

IPC: H01L29/02

CPC classification number: H01L23/485 ,  H01L21/2885 ,  H01L21/76843 ,  H01L21/76846 ,  H01L21/76877 ,  H01L23/53252 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A contact metallurgy structure comprising a patterned dielectric layer having cavities on a substrate; a suicide or germanide layer such as of cobalt and/or nickel located at the bottom of cavities; a contact layer comprising Ti or Ti/TiN located on top of the dielectric layer and inside the cavities and making contact to the suicide or germanide layer on the bottom; a diffusion barrier layer located on top of the contact layer and inside the cavities; optionally a seed layer for plating located on top of the barrier layer; a metal fill layer in vias is provided along with a method of fabrication. The metal fill layer is electrodeposited with at least one member selected from the group consisting of copper, rhodium, ruthenium, iridium, molybdenum, gold, silver, nickel, cobalt, silver, gold, cadmium and zinc and alloys thereof. When the metal fill layer is rhodium, ruthenium, or iridium, an effective diffusion barrier layer is not required between the fill metal and the dielectric. When the barrier layer is platable, such as ruthenium, rhodium, platinum, or iridium, the seed layer is not required.

Abstract translation: 一种接触式冶金结构，包括在基底上具有空腔的图案化电介质层; 位于空腔底部的自杀或锗化物层，例如钴和/或镍; 接触层包括位于介电层顶部并且在空腔内并且与底部上的硅化物或锗化物层接触的Ti或Ti / TiN; 位于所述接触层顶部和所述空腔内的扩散阻挡层; 可选地，位于阻挡层顶部的用于电镀的种子层; 提供通孔中的金属填充层以及制造方法。 金属填充层用选自铜，铑，钌，铱，钼，金，银，镍，钴，银，金，镉和锌中的至少一种电池和其合金电沉积。 当金属填充层是铑，钌或铱时，在填充金属和电介质之间不需要有效的扩散阻挡层。 当阻挡层是可镀的，例如钌，铑，铂或铱时，不需要种子层。