Title
All-wet TSV filling with highly adhesive displacement plated Cu seed layer
Abstract
For realizing high aspect ratio TSV with a low cost, the all-wet process using electroless barrier and seed layers prior to Cu electroplated fill is one of the key technology. However, improvement of adhesion property of electroless plated Cu seed layers on the barrier layer has been intensively required. In this study, we studied displacement plating of Cu on electroless CoWB barrier layer in an acidic bath. It is confirmed that the displacement plated Cu film has a high adhesion strength which is enough to pass CMP process.
Year
DOI
Venue
2015
10.1109/3DIC.2015.7334609
2015 International 3D Systems Integration Conference (3DIC)
Keywords
Field
DocType
TSV,electroless plating,electroplated Cu
Adhesion strength,Electroless plating,Adhesion,Barrier layer,Adhesive,Metallurgy,Aspect ratio (aeronautics),Materials science,Electroplating
Conference
ISSN
Citations 
PageRank 
2164-0157
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Kohei Ohta1729.20
Atsushi Hirate200.34
Yuto Miyachi300.34
Tomohiro Shimizu400.68
Shoso Shingubara500.68