TW383478B - Method of forming interconnection for semiconductor device - Google Patents

Method of forming interconnection for semiconductor device Download PDF

Info

Publication number
TW383478B
TW383478B TW087114421A TW87114421A TW383478B TW 383478 B TW383478 B TW 383478B TW 087114421 A TW087114421 A TW 087114421A TW 87114421 A TW87114421 A TW 87114421A TW 383478 B TW383478 B TW 383478B
Authority
TW
Taiwan
Prior art keywords
copper
item
thin film
forming
patent application
Prior art date
Application number
TW087114421A
Other languages
English (en)
Inventor
Seung-Yun Lee
Yong-Sup Hwang
Chong-Ook Park
Dong-Won Kim
Sa-Kyun Rha
Original Assignee
Lg Semicon Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lg Semicon Co Ltd filed Critical Lg Semicon Co Ltd
Application granted granted Critical
Publication of TW383478B publication Critical patent/TW383478B/zh

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/18Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/28Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/71Manufacture of specific parts of devices defined in group H01L21/70
    • H01L21/768Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
    • H01L21/76838Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/52Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
    • H01L23/522Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
    • H01L23/532Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
    • H01L23/53204Conductive materials
    • H01L23/53209Conductive materials based on metals, e.g. alloys, metal silicides
    • H01L23/53228Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Electrodes Of Semiconductors (AREA)

Description

經济部中央#:準而货Η消費合作.#印製 A7 ----------- B7 五、發明説明(1) — 發明背景 發明領域 本發明係關於半導體裝置,特別係關於使用銅形成半 V體裝置之互連之方法’銅適合作為高度積禮及高功率半 導體裝置之互連村料。 背景討論 身又而5紹廣泛用作高度積體電路之電互連之導電材 料。 但隨著互連寬度之縮窄,鋁電阻對電路之電阻/電容 時間(RC時間)延遲有某種意義,也隨著尺寸之縮窄其設計 法則受限。 因此晚近鋼替代鋁作為半導體裝置之互連材料,原因 為其比電阻約比鋁低40%極具有極佳電遷移性。通常銅 藉鑲嵌法形成。 '、 現在參照附圖敘述形成習知半導體裝置之銅互連之方 法。 ·_ 第1圖中’絕緣層2形成於半導體基材1上,活性元件 整合於半導體基材上,及切槽2a成形於絕緣層2.銅薄膜3 藉濺鍍沈積法形成於包括切槽2a之絕緣層2。此處當藉濺 鍍沈積法連續沈積銅俾填補切槽2a時於切槽2a形成空隙5 ,如第2圖所示。 〆、人為了去除切槽2a之空隙5,其上沈積銅薄膜3於半 導體基材1置於真空爐内,及於50(TC或以上於氧/氫氣氛 下退火超過1小時。如此如第3圖所示,銅薄膜3流動入成 本紙張尺度通用中( CNS ) A4規格(2〗0X297公釐) '~~~ -- —---------J------、玎----,——Φ, (請先閲讀背面之注意Ϋ-項再填寫本頁} A7 五、 發明説明(2 B7 开^於切槽2a之空隙5,如此切槽2&被完全填補而無餘隙。 此處前述方法稱做鋼再流動法。 、$知形成半導體裝置之銅互連之方法係應用鋼再流動 法’其需要超過1小時之退火時間及溫度高於50(TC於氧/ 氫氣氛下俾形成毫無空隙的服貼銅層,如此降低半導體褽 置之生產力。 發明概述 如此本發明之主要目的係提供一種形成半導體裴置之 互連之方法,其比較先前技術可於較低退火溫度及較短退 火時間再流動沈積妥之銅薄膜。 本發明之其他優點及特點將陳述於後文說明,部份由 說明顯然易明。或可藉實施本發明習得。本發明之目的及 其他優點由書面說明及申請專利範圍及附圖特別指出之結 構可實現及達成。 為了達成如此處具體廣義說明之本發明之其他優點及 目的種形成半導體裝置之互連之方法,其包含下列步 驟: 形成一絕緣層具有一切槽於半導體基材上;.形成及沈 積一銅薄膜於包括該切槽之絕緣層上;及再流動該銅薄膜 立需瞭解前文概略說明及後文詳細說明係供舉例說明之 用意圖對如申請專利之本發明提供進一步解說。 圖式之簡單說明 附圖示例說明本發明之具體例連同詳細說明用來解釋 本紙張尺度適和中國國家椟準(CNS ) A4規格(210.X297公餐; 請 聞 背 面 之 注 項 再 4 % i- 頁 訂 經"·部中央樣牟而炅工消费合作拉印製 經濟部中央#準局贝X消贽告作衽印t A7 -----* B1 ' ~ —— M ___ 五、發明説明(3) ~ 本發明之原理,含括於此僅供進一步瞭解本發明故合併構 成本說明書之一部份。 附圖中: 第1至3圖為垂直剖面圖示例說明習知形成半導體裝置 之銅互連之方法; 第4及5圖為垂直剖面圖示例說明根據本發明形成半導 體裝置之鋼互連之方法;及 第6圖為表顯示銅及銅-齒化材料之熔點。 發明之詳細說明 現在參照本發明之較佳具體例詳細說明,其實例示例 說明於附圖。 第4及5圖為垂直剖面圖示例說明根據本發明形成半導 體裝置之銅互連之方法。 首先,第4圖中,具有切槽21之絕緣層2〇成形於半導 體裝置10上,其中活性元件整合於半導體裝置中,及鋼薄 •.膜30藉·濺鍍沈積法形成於包括切槽21之絕緣層2〇上。 此處為了完全填補切槽21,其上沈積銅薄膜2之半導 體基材10置於真空爐,於45(rc或以下於鹵素氣體氣氛下 退火少於30分鐘。至於另一種填補切槽21之方法,包於絕 緣層上形成銅薄膜時加入小量函素氣體,如此形成銅_鹵 素材料,所得半導體基材10於前述條件下退火。此處銅原 子之遷移增加,如此銅薄膜30再流動及切槽21被填補而毫 無任何空隙,如第5圖所示。鹵素氣體J?2,Cl2 , Br,j中 ,Fa及CL可成氣態植入,而]5]:或1可呈液態置於起泡器内 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) {請先閲讀背面之注意事項再填寫本頁) 訂 ΦΙ. A7 B7 五、 發明説明( 及使用情性氣體Ar或He藉起泡方法呈氣態植入,或使用 液體贈或氣化器植人4素氣體於退火過程後係藉清 洗法去除。 請 閲 讀 背 面 之 注 意 事, 項 再 填 本 頁 根據於齒素氣體氣氛之銅再流動方法,植入爐内之鹵 素氣壓维持於W托耳及銅』化材料僅形成於銅薄膜表面 。如第6圖所示,因銅·鹵化材料之熔點顯著低於銅溶點, 故即使於〶於退火溫度,形成於銅薄膜表面之銅』化材 料流體化。 現在說明根據本發明之銅之再流動方法之原理。 當Κ為薄膜表面預定點之曲率時,表面各點之化學電 位/^ 0+邮(其中r為表s張力及Ω為原子體積)。第4 訂 圖中於藉親沈積法沈積鋼薄膜於半導體基材表面之例, 由於銅薄膜各點具有不同表面曲率,當施加熱能時依據表 面各點之化學電位梯度原子進行表面擴散而填補切槽毫無 空隙。 經境部中央樣卑而兵工消f合作社印製 气前述根據本發明經由使用銅形成半導體裝置互連之 方法可於低於450°c再流動沈積於具有高階表面之半導體 基材上的銅薄膜歷小於3〇分鐘,其比較先前技術顳示改良 之退火條件。此外,經由根據低溫方法減少熱能消耗,合 形成半導體裝置之互連時可允許銅不會快速擴散通過石夕基 材,電極等,如此改良半導體裝置之生產力。 業界人士顯然易知可於本發明之形成半導體裝置之互 連之方法做出多種修改及變化而未背離本發明之精體或範 圍。如此本發明意圖涵蓋屬於隨附之申請專利範圍及其相 本紙張尺度適财國國家標準(CNS)从規^;(训-幻97公酱)_ S83478 A7 B7 五、發明説明( 當範圍之修改及變化。 元件標號對照 1.. .半導體基材 2.. .絕緣層 2a…切槽 3…銅薄膜 5.. .空隙 10.. .半導體基材 20.. .絕緣層 21…切槽 .---------;------1T------JI- (請先閲讀背面之注意事項再填寫本頁) 經"'部中央標率^1'只-·1'消贽合作拍印製 本紙張尺度適用中國國家標準(CNS ) A4規格(210Χ29?公釐)

Claims (1)

  1. A8 B8 C8 D8 S8S478 ------ 申請專利範圍 種形成半導體裝置 之互連之方法,其包含下列步 驟 形成一層具有—切槽之絕緣層於半導體基材上; 形成一銅薄膜於包括該切槽之絕緣層上;及 於。3彘素氣體氣氛下再流動銅薄膜。 2·如申請專利範圍第1 、〈万法,其中該銅薄膜係經由減 鏡沈積法’化學蒸氣沈積法或蒸發法形成。 3 .如申請專利範圍第1 ▲ …方法,其中該形成及再流動趣 缚膜之步驟係於同-腔室内進行。 4·如申請專利範圍第1項之方法,其中該銅薄膜係於45| c或以下再流動。 5.如申請專利範園第]货+ 項之方法,,其中植入之鹵素氣體超 自包括F2’Cl2, Br’或I或其组合。 6·如申睛專利範圍第1項之方法,其中該鹵素氣體與銅旁 、反應如此於銅薄膜表面形成鋼-鹵化材料。 • 7·如申請專利範圍笫〗货 ' 固弟1項之方法,其中卩2及(:12係呈氣I 植入。 經濟部中央裙準局員工消費合作社印製 申°月專利範圍第5項之方法,其中Br或I係,呈流體j /起泡内及使用心及取等惰性氣體藉起泡方法呈_ 態植人或經由使用液體峨或氣化器植入。 申:專利範圍第5項之方法,其中該腔室壓力於再^ 動銅薄膜之步驟係維持於低於! 〇_2托耳俾使銅-齒化和 料僅於銅薄膜表面形成。 10·如申請專利範圍第丨項之方法,其中#沈_薄膜於色 ㈣槽之絕緣層時添加小量南素氣體。
TW087114421A 1998-02-07 1998-08-31 Method of forming interconnection for semiconductor device TW383478B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980003580A KR100259357B1 (ko) 1998-02-07 1998-02-07 반도체 소자의 배선형성방법

Publications (1)

Publication Number Publication Date
TW383478B true TW383478B (en) 2000-03-01

Family

ID=19532693

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087114421A TW383478B (en) 1998-02-07 1998-08-31 Method of forming interconnection for semiconductor device

Country Status (5)

Country Link
US (1) US6057228A (zh)
JP (1) JPH11274159A (zh)
KR (1) KR100259357B1 (zh)
DE (1) DE19843173A1 (zh)
TW (1) TW383478B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11430692B2 (en) 2020-07-29 2022-08-30 Taiwan Semiconductor Manufacturing Company Limited Thermally stable copper-alloy adhesion layer for metal interconnect structures and methods for forming the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4669605B2 (ja) * 2000-11-20 2011-04-13 東京エレクトロン株式会社 半導体製造装置のクリーニング方法
US6939796B2 (en) * 2003-03-14 2005-09-06 Lam Research Corporation System, method and apparatus for improved global dual-damascene planarization
JP5023505B2 (ja) * 2006-02-09 2012-09-12 東京エレクトロン株式会社 成膜方法、プラズマ成膜装置及び記憶媒体
JPWO2013047323A1 (ja) 2011-09-30 2015-03-26 株式会社アルバック 半導体装置の製造方法、半導体装置
US8796853B2 (en) * 2012-02-24 2014-08-05 International Business Machines Corporation Metallic capped interconnect structure with high electromigration resistance and low resistivity

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098516A (en) * 1990-12-31 1992-03-24 Air Products And Chemicals, Inc. Processes for the chemical vapor deposition of copper and etching of copper
US5085731A (en) * 1991-02-04 1992-02-04 Air Products And Chemicals, Inc. Volatile liquid precursors for the chemical vapor deposition of copper
US5144049A (en) * 1991-02-04 1992-09-01 Air Products And Chemicals, Inc. Volatile liquid precursors for the chemical vapor deposition of copper
US5714418A (en) * 1995-11-08 1998-02-03 Intel Corporation Diffusion barrier for electrical interconnects in an integrated circuit
US5891803A (en) * 1996-06-26 1999-04-06 Intel Corporation Rapid reflow of conductive layers by directional sputtering for interconnections in integrated circuits
US5968847A (en) * 1998-03-13 1999-10-19 Applied Materials, Inc. Process for copper etch back

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11430692B2 (en) 2020-07-29 2022-08-30 Taiwan Semiconductor Manufacturing Company Limited Thermally stable copper-alloy adhesion layer for metal interconnect structures and methods for forming the same
TWI801927B (zh) * 2020-07-29 2023-05-11 台灣積體電路製造股份有限公司 半導體結構與其形成方法

Also Published As

Publication number Publication date
KR100259357B1 (ko) 2000-06-15
DE19843173A1 (de) 1999-08-19
JPH11274159A (ja) 1999-10-08
KR19990069376A (ko) 1999-09-06
US6057228A (en) 2000-05-02

Similar Documents

Publication Publication Date Title
KR940016626A (ko) 반도체장치 및 그 제조방법
US6114244A (en) Method for manufacturing a semiconductor device having fine contact hole with high aspect ratio
US4732801A (en) Graded oxide/nitride via structure and method of fabrication therefor
MY132400A (en) Ruthenium silicide diffusion barrier layers and methods of forming same
KR940016484A (ko) 반도체장치 및 그 제조방법
KR930003243A (ko) (111) 결정방향을 가지는 질화티타늄 방벽층을 형성시키는 방법
JPS5817615A (ja) 金属シリサイドを形成するための金属とシリコンとの低圧力cvd共付着法
JPS6060720A (ja) 半導体デバイス作成方法
US5420069A (en) Method of making corrosion resistant, low resistivity copper for interconnect metal lines
TW417269B (en) Integrated circuit interconnect lines having sidewall layers
TW383478B (en) Method of forming interconnection for semiconductor device
US5494860A (en) Two step annealing process for decreasing contact resistance
JP3113800B2 (ja) 半導体装置の配線形成方法
KR960702014A (ko) 기판내의 서브마이크론 비아 충전 방법(Method for planarization of submicron vias and the manufacture of semiconductor integrated circuits)
JPS61152042A (ja) 半導体素子の金属化パターンおよびその方法
Kang et al. Metallorganic chemical vapor deposition of Ru films using cyclopentadienyl-propylcyclopentadienylruthenium (II) and oxygen
JPH01501985A (ja) 改良メタライゼーションを有する半導体デバイス
JP2000049117A (ja) 金属充てん構造部形成方法
EP0567867A2 (en) Oxidation-resistant compound of Cu3Si and fabrication thereof
JPH07130854A (ja) 配線構造体及びその形成方法
JP3164152B2 (ja) 半導体装置の製造方法
TW392320B (en) Metal interconnection structure of semiconductor device
JP2559829B2 (ja) 半導体装置および半導体装置の製造方法
JPS58197761A (ja) 半導体装置
TW386268B (en) Method of avoiding contamination of W particles by using N2 plasma to form W layer

Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees