公开(公告)号：EP1869700A4

公开(公告)日：2010-12-15

申请号：EP06740771

申请日：2006-04-07

Applicant: IBM

Inventor： YANG CHIH-CHAO ,  CLEVENGER LAWRENCE A ,  COWLEY ANDREW P ,  DALTON TIMOTHY J ,  YOON MEEYOUNG H

IPC: H01L21/4763 ,  H01L21/768

CPC classification number: H01L21/76849 ,  H01L21/76807 ,  H01L21/76814 ,  H01L21/76831 ,  H01L21/76843 ,  H01L2924/0002 ,  H01L2924/00

公开(公告)号：WO2006113186A3

公开(公告)日：2008-07-24

申请号：PCT/US2006013179

申请日：2006-04-07

Applicant: IBM ,  YANG CHIH-CHAO ,  CLEVENGER LAWRENCE A ,  COWLEY ANDREW P ,  DALTON TIMOTHY J ,  YOON MEEYOUNG H

Inventor： YANG CHIH-CHAO ,  CLEVENGER LAWRENCE A ,  COWLEY ANDREW P ,  DALTON TIMOTHY J ,  YOON MEEYOUNG H

IPC: H01L21/4763

CPC classification number: H01L21/76849 ,  H01L21/76807 ,  H01L21/76814 ,  H01L21/76831 ,  H01L21/76843 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A damascene wire and method of forming the wire. The method including: forming a mask layer on a top surface of a dielectric layer; forming an opening in the mask layer; forming a trench in the dielectric layer where the dielectric layer is not protected by the mask layer; recessing the sidewalls of the trench under the mask layer; forming a conformal conductive liner on all exposed surface of the trench and the mask layer; filling the trench with a core electrical conductor; removing portions of the conductive liner extending above the top surface of the dielectric layer and removing the mask layer; and forming a conductive cap on a top surface of the core conductor. The structure includes a core conductor clad in a conductive liner and a conductive capping layer in contact with the top surface of the core conductor that is not covered by the conductive liner.

Abstract translation: 一种镶嵌线及其形成方法。 该方法包括：在电介质层的顶表面上形成掩模层; 在掩模层中形成开口; 在电介质层中形成沟槽，其中电介质层不被掩模层保护; 使掩模层下方的沟槽的侧壁凹陷; 在沟槽和掩模层的所有暴露表面上形成共形导电衬垫; 用芯电导体填充沟槽; 去除在电介质层的顶表面上方延伸的导电衬垫的部分，并去除掩模层; 以及在所述芯导体的顶表面上形成导电帽。 该结构包括包覆在导电衬垫中的芯导体和与未被导电衬垫覆盖的芯导体的顶表面接触的导电覆盖层。