Presentation 2005/1/24
Improvement in Reliability of Cu Dual-Damascene Interconnects Using CuAl Alloy Seed
Kazuyoshi MAEKAWA, Kenichi MORI, Kiyoteru KOBAYASHI, Masahiro YONEDA, Niranjan Kumar, Schubert Chu, Samuel Chen, Gigi Lai, Daniel Diehl,
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Abstract(in English) In the present work, CuAl alloy seed was applied for 90nm node Cu dual-damascene interconnects and its effect on reliability improvement was studied. Via reliability of Cu interconnects using CuAl alloy seed was greatly improved without a remarkable increase in via resistance. A small amount of Al in Cu seems to help prevent the diffusion of vacancies and Cu atoms in Cu interconnects. Using CuAl alloy seed is one of the most promising and simple techniques to improve the via reliability of Cu interconnects for the 65nm node and beyond.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Interconnect / Dual-damascene / Reliability / Alloy seed / CuAl
Paper # SDM2004-242
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Conference Information
Committee SDM
Conference Date 2005/1/24(1days)
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Paper Information
Registration To Silicon Device and Materials (SDM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improvement in Reliability of Cu Dual-Damascene Interconnects Using CuAl Alloy Seed
Sub Title (in English)
Keyword(1) Interconnect
Keyword(2) Dual-damascene
Keyword(3) Reliability
Keyword(4) Alloy seed
Keyword(5) CuAl
1st Author's Name Kazuyoshi MAEKAWA
1st Author's Affiliation Process Development Dept., Process Technology Development Div., Production and Technology Unit, Renesas Technology Corp.()
2nd Author's Name Kenichi MORI
2nd Author's Affiliation Process Development Dept., Process Technology Development Div., Production and Technology Unit, Renesas Technology Corp.
3rd Author's Name Kiyoteru KOBAYASHI
3rd Author's Affiliation Process Development Dept., Process Technology Development Div., Production and Technology Unit, Renesas Technology Corp.
4th Author's Name Masahiro YONEDA
4th Author's Affiliation Process Development Dept., Process Technology Development Div., Production and Technology Unit, Renesas Technology Corp.
5th Author's Name Niranjan Kumar
5th Author's Affiliation Applied Materials, Inc.
6th Author's Name Schubert Chu
6th Author's Affiliation Applied Materials, Inc.
7th Author's Name Samuel Chen
7th Author's Affiliation Applied Materials, Inc.
8th Author's Name Gigi Lai
8th Author's Affiliation Applied Materials, Inc.
9th Author's Name Daniel Diehl
9th Author's Affiliation Applied Materials Japan Inc.
Date 2005/1/24
Paper # SDM2004-242
Volume (vol) vol.104
Number (no) 645
Page pp.pp.-
#Pages 4
Date of Issue