公开(公告)号：DE112010003451T8

公开(公告)日：2013-01-10

申请号：DE112010003451

申请日：2010-08-05

Applicant: IBM

Inventor： CALLEGARI ALESSANDRO ,  BABICH KATHERINA ,  O'SULLIVAN EUGENE ,  CONNOLLY JOHN

IPC: H01L21/768 ,  H01L23/532

公开(公告)号：DE102004030860B4

公开(公告)日：2007-05-31

申请号：DE102004030860

申请日：2004-06-25

Applicant: IBM ,  INFINEON TECHNOLOGIES AG

Inventor： BROWN STEPHEN L ,  COSTRINI GREG ,  GAIDIS MICHAEL C ,  FINDEIS FRANK ,  GLASHAUSER WALTER ,  NUETZEL JOACHIM ,  PARK CHANRO ,  O'SULLIVAN EUGENE

IPC: H01L21/768 ,  H01L21/4763 ,  H01L21/60 ,  H01L23/532 ,  H01L27/22

Abstract: Encapsulating areas of metallization in a liner material, such as Tantalum, Tantalum Nitride, Silicon Carbide allows aggressive or harsh processing steps to be used. These aggresive processing steps offer the possibility of fabricating new device architectures. In addition, by encapsulating the areas of metallization, metal ion migration and electromigration can be prevented. Further, the encapsulated areas of metallization can serve as a self-aligning etch mask. Thus, vias etched between adjacent areas of metallization allow the area of the substrate allocated to the via to be significantly reduced without increasing the possibility of electrical shorts to the adjacent areas of metallization.