A study on annealing mechanisms with different manganese contents in CuMn alloy

► We optimized concentration of Mn in CuMn alloy used as barrier layers. ► Mn concentration is one of the key factors in the semiconductor process. ► The Cu atoms in the Cu-10at.% Mn films diffused with the group of Mn atoms. ► The Mn concentration cannot be raised without limit. ► The Cu-5at.% Mn f...

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Veröffentlicht in:Journal of alloys and compounds 2012-11, Vol.542, p.118-123
Hauptverfasser: Wu, Chia-Yang, Wu, Chi-Ting, Lee, Wen-Hsi, Chang, Shih-Chieh, Wang, Ying-Lang
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container_end_page 123
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container_start_page 118
container_title Journal of alloys and compounds
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creator Wu, Chia-Yang
Wu, Chi-Ting
Lee, Wen-Hsi
Chang, Shih-Chieh
Wang, Ying-Lang
description ► We optimized concentration of Mn in CuMn alloy used as barrier layers. ► Mn concentration is one of the key factors in the semiconductor process. ► The Cu atoms in the Cu-10at.% Mn films diffused with the group of Mn atoms. ► The Mn concentration cannot be raised without limit. ► The Cu-5at.% Mn film demonstrates the best barrier properties. In this paper, the effect of Mn in the CuMn alloy was investigated. And an optimized concentration of Mn in CuMn alloy used as barrier layers was also determined. The electrical and material properties of Copper (Cu) (0.1–10at.% Mn) alloy and pure Cu films deposited on silicon oxide (SiO2)/silicon (Si) are researched. A diffusion barrier layer was self-formed at the interface during annealing, and the growth behavior followed a logarithmic rate law. The microstructures of the Cu–Mn films were analyzed by transmission electron microscopy (TEM), and then correlated with the electrical properties of the Cu–Mn films. After annealing, several Cu alloys and pure Cu films appeared to aggregate and the resistance of the films increased. The Cu atoms diffused into the dielectric layers after annealing at 500°C under vacuum condition. However, no agglomeration and Cu were found in the SiO2 layer using Cu–Mn alloy with an appropriate amount of Mn, suggesting that a MnSixOy layer is a suitable barrier for Cu. In the experiment, we found that Mn concentration is one of the key factors in the semiconductor process, and the Cu-5at.% Mn film demonstrates the best barrier properties.
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In this paper, the effect of Mn in the CuMn alloy was investigated. And an optimized concentration of Mn in CuMn alloy used as barrier layers was also determined. The electrical and material properties of Copper (Cu) (0.1–10at.% Mn) alloy and pure Cu films deposited on silicon oxide (SiO2)/silicon (Si) are researched. A diffusion barrier layer was self-formed at the interface during annealing, and the growth behavior followed a logarithmic rate law. The microstructures of the Cu–Mn films were analyzed by transmission electron microscopy (TEM), and then correlated with the electrical properties of the Cu–Mn films. After annealing, several Cu alloys and pure Cu films appeared to aggregate and the resistance of the films increased. The Cu atoms diffused into the dielectric layers after annealing at 500°C under vacuum condition. However, no agglomeration and Cu were found in the SiO2 layer using Cu–Mn alloy with an appropriate amount of Mn, suggesting that a MnSixOy layer is a suitable barrier for Cu. In the experiment, we found that Mn concentration is one of the key factors in the semiconductor process, and the Cu-5at.% Mn film demonstrates the best barrier properties.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2012.06.093</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Annealing ; Barrier ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Condensed matter: structure, mechanical and thermal properties ; Copper ; Copper base alloys ; Cross-disciplinary physics: materials science; rheology ; Cu–Mn alloy ; Diffusion ; Electrical properties of specific thin films ; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures ; Exact sciences and technology ; Manganese ; Materials science ; Metals and metallic alloys ; Methods of deposition of films and coatings; film growth and epitaxy ; Other nonelectronic physical properties ; Physical properties of thin films, nonelectronic ; Physics ; Self-formed ; Semiconductors ; Silicon dioxide ; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) ; Theory and models of film growth</subject><ispartof>Journal of alloys and compounds, 2012-11, Vol.542, p.118-123</ispartof><rights>2012</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c372t-833a42b0badbcf9317345028a4c84e7dceb60546c43886c3534d0b59513e1c553</citedby><cites>FETCH-LOGICAL-c372t-833a42b0badbcf9317345028a4c84e7dceb60546c43886c3534d0b59513e1c553</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jallcom.2012.06.093$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=26442174$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, Chia-Yang</creatorcontrib><creatorcontrib>Wu, Chi-Ting</creatorcontrib><creatorcontrib>Lee, Wen-Hsi</creatorcontrib><creatorcontrib>Chang, Shih-Chieh</creatorcontrib><creatorcontrib>Wang, Ying-Lang</creatorcontrib><title>A study on annealing mechanisms with different manganese contents in CuMn alloy</title><title>Journal of alloys and compounds</title><description>► We optimized concentration of Mn in CuMn alloy used as barrier layers. ► Mn concentration is one of the key factors in the semiconductor process. ► The Cu atoms in the Cu-10at.% Mn films diffused with the group of Mn atoms. ► The Mn concentration cannot be raised without limit. ► The Cu-5at.% Mn film demonstrates the best barrier properties. In this paper, the effect of Mn in the CuMn alloy was investigated. And an optimized concentration of Mn in CuMn alloy used as barrier layers was also determined. The electrical and material properties of Copper (Cu) (0.1–10at.% Mn) alloy and pure Cu films deposited on silicon oxide (SiO2)/silicon (Si) are researched. A diffusion barrier layer was self-formed at the interface during annealing, and the growth behavior followed a logarithmic rate law. The microstructures of the Cu–Mn films were analyzed by transmission electron microscopy (TEM), and then correlated with the electrical properties of the Cu–Mn films. After annealing, several Cu alloys and pure Cu films appeared to aggregate and the resistance of the films increased. The Cu atoms diffused into the dielectric layers after annealing at 500°C under vacuum condition. However, no agglomeration and Cu were found in the SiO2 layer using Cu–Mn alloy with an appropriate amount of Mn, suggesting that a MnSixOy layer is a suitable barrier for Cu. In the experiment, we found that Mn concentration is one of the key factors in the semiconductor process, and the Cu-5at.% Mn film demonstrates the best barrier properties.</description><subject>Annealing</subject><subject>Barrier</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Copper</subject><subject>Copper base alloys</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Cu–Mn alloy</subject><subject>Diffusion</subject><subject>Electrical properties of specific thin films</subject><subject>Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures</subject><subject>Exact sciences and technology</subject><subject>Manganese</subject><subject>Materials science</subject><subject>Metals and metallic alloys</subject><subject>Methods of deposition of films and coatings; film growth and epitaxy</subject><subject>Other nonelectronic physical properties</subject><subject>Physical properties of thin films, nonelectronic</subject><subject>Physics</subject><subject>Self-formed</subject><subject>Semiconductors</subject><subject>Silicon dioxide</subject><subject>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</subject><subject>Theory and models of film growth</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLxDAUhYMoOD5-gpCN4GZq0jzarkQGX6DMRtchvb0dM6SpJh1l_r2RGdy6unD5zj3nHkIuOCs44_p6Xayt9zAORcl4WTBdsEYckBmvKzGXWjeHZMaaUs1rUdfH5CSlNWOMN4LPyPKWpmnTbekYqA0BrXdhRQeEdxtcGhL9dtM77VzfY8Qw0cGGlQ2YkMIYprxJ1AW62Lxkuffj9owc9dYnPN_PU_J2f_e6eJw_Lx-eFrfPcxBVOeUkwsqyZa3tWuhzkkpIxcraSqglVh1gq5mSGmSOrEEoITvWqkZxgRyUEqfkanf3I46fG0yTGVwC9D6HGzfJcC50xhotMqp2KMQxpYi9-YhusHFrODO_BZq12Rdofgs0TJtcYNZd7i1sAuv7aAO49CcutZQlr2TmbnYc5n-_HEaTwGEA7FxEmEw3un-cfgCq74ia</recordid><startdate>20121125</startdate><enddate>20121125</enddate><creator>Wu, Chia-Yang</creator><creator>Wu, Chi-Ting</creator><creator>Lee, Wen-Hsi</creator><creator>Chang, Shih-Chieh</creator><creator>Wang, Ying-Lang</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20121125</creationdate><title>A study on annealing mechanisms with different manganese contents in CuMn alloy</title><author>Wu, Chia-Yang ; 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film growth and epitaxy</topic><topic>Other nonelectronic physical properties</topic><topic>Physical properties of thin films, nonelectronic</topic><topic>Physics</topic><topic>Self-formed</topic><topic>Semiconductors</topic><topic>Silicon dioxide</topic><topic>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</topic><topic>Theory and models of film growth</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Chia-Yang</creatorcontrib><creatorcontrib>Wu, Chi-Ting</creatorcontrib><creatorcontrib>Lee, Wen-Hsi</creatorcontrib><creatorcontrib>Chang, Shih-Chieh</creatorcontrib><creatorcontrib>Wang, Ying-Lang</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Chia-Yang</au><au>Wu, Chi-Ting</au><au>Lee, Wen-Hsi</au><au>Chang, Shih-Chieh</au><au>Wang, Ying-Lang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A study on annealing mechanisms with different manganese contents in CuMn alloy</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2012-11-25</date><risdate>2012</risdate><volume>542</volume><spage>118</spage><epage>123</epage><pages>118-123</pages><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>► We optimized concentration of Mn in CuMn alloy used as barrier layers. ► Mn concentration is one of the key factors in the semiconductor process. ► The Cu atoms in the Cu-10at.% Mn films diffused with the group of Mn atoms. ► The Mn concentration cannot be raised without limit. ► The Cu-5at.% Mn film demonstrates the best barrier properties. In this paper, the effect of Mn in the CuMn alloy was investigated. And an optimized concentration of Mn in CuMn alloy used as barrier layers was also determined. The electrical and material properties of Copper (Cu) (0.1–10at.% Mn) alloy and pure Cu films deposited on silicon oxide (SiO2)/silicon (Si) are researched. A diffusion barrier layer was self-formed at the interface during annealing, and the growth behavior followed a logarithmic rate law. The microstructures of the Cu–Mn films were analyzed by transmission electron microscopy (TEM), and then correlated with the electrical properties of the Cu–Mn films. After annealing, several Cu alloys and pure Cu films appeared to aggregate and the resistance of the films increased. The Cu atoms diffused into the dielectric layers after annealing at 500°C under vacuum condition. However, no agglomeration and Cu were found in the SiO2 layer using Cu–Mn alloy with an appropriate amount of Mn, suggesting that a MnSixOy layer is a suitable barrier for Cu. In the experiment, we found that Mn concentration is one of the key factors in the semiconductor process, and the Cu-5at.% Mn film demonstrates the best barrier properties.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2012.06.093</doi><tpages>6</tpages></addata></record>
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subjects Annealing
Barrier
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Copper
Copper base alloys
Cross-disciplinary physics: materials science
rheology
Cu–Mn alloy
Diffusion
Electrical properties of specific thin films
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Manganese
Materials science
Metals and metallic alloys
Methods of deposition of films and coatings
film growth and epitaxy
Other nonelectronic physical properties
Physical properties of thin films, nonelectronic
Physics
Self-formed
Semiconductors
Silicon dioxide
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Theory and models of film growth
title A study on annealing mechanisms with different manganese contents in CuMn alloy
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