Cu planarization for ULSI processing by electrochemical methods: a review

II Suni, B Du - IEEE transactions on semiconductor …, 2005 - ieeexplore.ieee.org
The planned introduction of porous, low-k dielectric materials into Si-based semiconductor
devices will provide substantial challenges for chemical mechanical planarization. These …

Method and apparatus for electrochemical planarization of a workpiece

I Emesh, S Chadda, NN Korovin, BL Mueller - US Patent 6,736,952, 2004 - Google Patents
An electrochemical planarization apparatus for planarizing a metallized surface on a
workpiece includes a polishing pad and a platen. The platen is formed of conductive …

Method and composition for polishing a substrate

FQ Liu, SD Tsai, Y Hu, SS Neo, Y Wang… - US Patent …, 2006 - Google Patents
Polishing compositions and methods for removing conduc tive materials from a substrate
surface are provided. In one aspect, a composition includes an acid based electrolyte …

Methods of producing and polishing semiconductor device and polishing apparatus

S Sato, Y Segawa, A Yoshio, H Ootorii… - US Patent …, 2004 - Google Patents
A method of production and a method of polishing a semiconductor device and a polishing
apparatus, capable of easily flattening an initial unevenness of a metal film, excellent in …

Controlled electrochemical polishing method

PM Feeney, V Brusic - US Patent 7,998,335, 2011 - Google Patents
The invention relates to a method of polishing a substrate comprising at least one metal
layer by applying an electro chemical potential between the substrate and at least one …

Methods and apparatus for electrical, mechanical and/or chemical removal of conductive material from a microelectronic substrate

W Lee, SG Meikle, SE Moore, TT Doan - US Patent 7,112,121, 2006 - Google Patents
(57) ABSTRACT A method and apparatus for removing conductive material from a
microelectronic Substrate. In one embodiment, the method can include engaging a …

Methods and apparatus for electrically and/or chemically-mechanically removing conductive material from a microelectronic substrate

W Lee, SG Meikle, SE Moore - US Patent 7,160,176, 2007 - Google Patents
US7160176B2 - Methods and apparatus for electrically and/or chemically-mechanically
removing conductive material from a microelectronic substrate - Google Patents …

Electrolyte composition and treatment for electrolytic chemical mechanical polishing

A Duboust, L Sun, FQ Liu, Y Wang, Y Wang… - US Patent …, 2005 - Google Patents
An electrolyte composition and method for planarizing a surface of a wafer using the
electrolyte composition is provided. In one aspect, the electrolyte composition includes …

Electrolyte with good planarization capability, high removal rate and smooth surface finish for electrochemically controlled copper CMP

L Sun, FQ Liu, S Neo, S Tsai, LY Chen - US Patent 6,863,797, 2005 - Google Patents
Electrolyte compositions and methods for planarizing a Surface of a Substrate using the
electrolyte compositions are provided. In one aspect, an electrolyte composition includes …

Method and composition for polishing a substrate

FQ Liu, T Du, A Duboust, Y Wang, Y Hu… - US Patent …, 2008 - Google Patents
(54) METHOD AND COMPOSITION FOR 10/032,275, filed on Dec. 21, 2001, now Pat. No.
POLISHINGA SUBSTRATE 6,899,804, application No. 11/196,876, which is a continuation …