Predicting thickness dependent twin boundary formation in sputtered Cu films

被引:21
作者
Park, NJ
Field, DP
机构
[1] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA
[2] Kumoh Natl Inst Technol, Dept Mat Sci Engn, Gumi, South Korea
关键词
copper films; texture; twin boundaries; electron backscatter diffraction (EBSD);
D O I
10.1016/j.scriptamat.2005.11.041
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Triple junctions involving twin boundaries in Cu interconnects of integrated circuits have been shown to be potentially detrimental to the manufacturability of the circuit. Microstructures of annealed Cu films are dependent on film thickness and deposition parameters. This work describes texture and twin boundary development in sputtered and annealed Cu films. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:999 / 1003
页数:5
相关论文
共 15 条
[1]   Annealing behavior of Cu and dilute Cu-alloy films: Precipitation, grain growth, and resistivity [J].
Barmak, K ;
Gungor, A ;
Cabral, C ;
Harper, JME .
JOURNAL OF APPLIED PHYSICS, 2003, 94 (03) :1605-1616
[2]   The effect of substrate texture and electroplating conditions on the texture and surface morphology of copper electrodeposits [J].
Cho, JY ;
Szpunar, JA .
TEXTURES OF MATERIALS, PTS 1 AND 2, 2002, 408-4 :1609-1614
[3]   Texture development of blanket electroplated copper films [J].
Lingk, C ;
Gross, ME ;
Brown, WL .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (05) :2232-2236
[4]   DETERMINATION OF SURFACE ENERGY OF COPPER AS A FUNCTION OF CRYSTALLOGRAPHIC ORIENTATION AND TEMPERATURE [J].
MCLEAN, M .
ACTA METALLURGICA, 1971, 19 (04) :387-&
[5]  
MJUPPIDI T, 2005, THIN SOLID FILMS, V471, P63
[6]   THERMAL STRAIN IN LEAD THIN-FILMS .1. DEPENDENCE OF STRAIN ON CRYSTAL ORIENTATION [J].
MURAKAMI, M ;
CHAUDHARI, P .
THIN SOLID FILMS, 1977, 46 (01) :109-115
[7]  
Murr L., 1975, INTERFACIAL PHENOMEN
[8]   Growth of electromigration-induced hillocks in Al interconnects [J].
Nucci, JA ;
Straub, A ;
Bischoff, E ;
Arzt, E ;
Volkert, CA .
JOURNAL OF MATERIALS RESEARCH, 2002, 17 (10) :2727-2735
[9]   TEMPERATURE VARIATION OF THE ELASTIC CONSTANTS OF CUBIC ELEMENTS .1. COPPER [J].
OVERTON, WC ;
GAFFNEY, J .
PHYSICAL REVIEW, 1955, 98 (04) :969-977
[10]   Modeling of texture evolution in copper interconnects annealed in trenches [J].
Riege, SP ;
Thompson, CV .
SCRIPTA MATERIALIA, 1999, 41 (04) :403-408