簡易檢索 / 詳目顯示

研究生: 陳宗德
Chen, Tsung-Te
論文名稱: 銅與低介電係數絕緣層組成的多層連接線中銅種晶表面形態影響中介窗阻抗之研究
Effect of Cu Seed Layer Surface Morphology on the Resistance of Via in Cu/low-k Multilevel interconnects
指導教授: 蔡宗祐
Tsai, T.Y.
方炎坤
Fang, Y.K.
褚伯韜
Chu, Paul
何彥仕
Ho, Yens
學位類別: 碩士
Master
系所名稱: 電機資訊學院 - 微電子工程研究所
Institute of Microelectronics
論文出版年: 2005
畢業學年度: 93
語文別: 中文
論文頁數: 97
中文關鍵詞: 表面形態種晶中介窗
外文關鍵詞: Morphology, Via, Seed
相關次數: 點閱:102下載:1
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報
  •   本論文係在研究種晶層薄膜表面,經可見光,UV光,電子束照射或撞擊後,其電性及形態變化的情形及兩者的關聯性。本研究是模擬ULSI製程中,製作銅與低介電係數絕緣層組成的多層連接線時,可能遭受到外來的因素及其對利用銅電鍍所做的中介窗影響。經由實驗,並使用AFM及TEM分析其表面形態,吾人發現可見光,UV光,及電子束的照射強度 ,時間,皆會影響種晶層表面。但其影響程度皆不相同,其中以電子束的影響最大。例如5000伏以上的電子束照射20秒以上就可以使中介窗的電阻變化20%以上。又受可見光與UV光照射後的中介窗電阻變化趨勢剛好相反,此外並發現中介窗受可見光,UV光,及電子束照射後其阻值的變化與中介窗在晶圓上的位置有很大的關係。

    In this thesis, the target has been paid on study of the resistance change and the surface morphology of seed layer in the via of Cu/low-k multilevel interconnects ,after the irradiation of visible light,UV light,and E-beam.
    In the past , the via filling by electroplating was found to be quite sensitive to the morphology of sidewall .Hence, we suspect the morphology of seed layer will be affected by the the irradiation of visible light,UV light,and E-beam during the inspection of seed layer thus causing the via,s resistance change .

      In this study ,we used AFM and TEM to examine the surface morphology of seed layer surface after the irradiation of visible light,UV light,and E-beam and found the surface morphology indeed changed with time and strength of these lights or E-beam.Additionally the resistance of via is dependent on the chip located on the wafer.

    目錄 中文摘要 英文摘要 第一章 簡介……………………………………………………………….1 1.1 前言……………………………………………………………………1 1.2 積體電路製程技術的發展…………………………………………..2 1.2.1 銅金屬導線……………………………………………………….2 1.2.2低介電材料………………………………………………………..3 第二章 實驗製程理論…………………………………………………….7 2.1實驗所需製程…………………………………………………………7 2.2擴散阻隔層……………………………………………………………7 2.3銅電鍍…………………………………………………………………9 2.4化學機械研磨技術……………………………………………………11 第三章 SEED層以可見光照射…………………………………………..12 3.1 可見光………………………………………………………………..12 3.2 實驗設計……………………………………………………………13 3.3 電性測試結果討論…………………………………………………14 3.4 AFM及TEM分析……………………………………………………16 第四章 SEED層加以UV光照射…………………………………………18 4.1 UV光…………………………………………………………………18 4.2 實驗設計……………………………………………………………19 4.3電性測試結果討論……………………………………………………20 4.4 AFM及TEM分析 ……………………………………………………22 第五章 SEED層加以E-beam照射………………………………………24 5.1 E-beam…………………………………………………………………24 5.2 實驗設計……………………………………………………………26 5.3電性測試結果討論……………………………………………………27 5.4 AFM及TEM分析……………………………………………………29 第六章 結論與未來展望…………………………………………………31 6.1結論……………………………………………………………………31 6.2未來展望………………………………………………………………32

    <1>. J. Li, T. E. Seidel, J. W. Mayer, “Copper-Based Metallization in ULSI
    Structure”, MRS Bulletin, AUGUST, 15(1994).

    <2>. I. Sun, Maenpa M-A. Nicolet and M. Lumoajarvi, “Thermal Stability
    of Hafnium and Titanium Nitride Diffusion Barrier in Multilayer
    Contacts to Silicon” J.Eletrochem. Soc., 103 (1983) 1215-1218

    <3>. H. P. Kattelus, M.-A. Nicolet, “Chap.8 Diffusion Barrier in
    Semiconductor Contact Metallization”, edited by D. Gupta and P.S.
    Ho(Noyes Pulication, New Jersy, 1988),pp432

    <4>. J . W. Mayer, S. S. Lau, ”Chap. 11Reaction Kinetic: Silicides,
    Aluminides, and Diffusion Barrier”, Electronic Materials Science: for
    Intergrated Circuits in Si and GaAs,(Macmillan Publishing Company,
    New York, USA, 1990)

    <5>ohn L. Vossen and Werner Kerm, ”Thin Film Process”, Academic
    Proc.(1991)134

    <6> D. Westwood, “Chap. 9 Reactive Sputter deposition”, Handbook of
    Plasma Processing Technology, (Noyes Publication, Park Ridge, New
    Jersey, USA, 1990)

    <7>. L. Smith, “Thin-Film Deposition Principles and Practice”, The
    McGraw-Kill Companies, Inc. 483-499(1999)

    <8>. Ohring, “Chap. 3 Physical Vapor Deposition”, The Materials
    Science of Thin Films, (Academic Press, UK, 1992)

    <9>ohn Wiley and Sons,”Chap.6 Sputtering”, Glow Discharge Process,
    Brain Campman, New York 1980

    <10>e National Technology Roadmap for Semiconductors,1997
    Edition,Semiconductor Industry Association (Semiconductor Industry
    Association,San Jose,CA,1997)

    <11> Ivanov, Thin Solid Films,1332,325(1998)

    <12> Sad, J. Pelleg, “Co-sputtered TiB2 as a diffusion Barrier for
    Advanced Microelectronics with Cu”, Applied Surface
    Science,91,263(1995)

    <13> C. Park and K. B. Kim, ”Effect of annealing of Titanium Nitride on
    the Diffusion Barrier Property in Cu Metallization”, J. Electrochem.
    Soc., 142(1995)3109-3115

    <14> K. Huang, Shi-Qing Wang,“Thin Ti/TiN barrier for ULSI
    application”, MRS.,403(1996)495-499

    <15> Q. Wang, J. Brand, S. Sailesh, R. Shailesh and K. B. kin, “Reactive
    Sputtered TiN as a Diffusion Barrier Between Cu and Si”, J.Appl.
    Phys., 68(1990) 5176-5178

    <16>njan saha, Rama B. Inturi, Jokn A. Barnard “Effect of thickness
    and substrates on the mechanical properties of tantalum and tantalum
    nitride thin films”, MRS., 403(1996)259-264

    <17> Krusin, Thin solid films,104(1983)81-87

    <18>yumi B. Takeyama, ”Application of amorphous Cu-Zr binary alloy
    as a diffusion barrier in Cu/Si contact system”, J.Apply.Phys.80(1),1
    July 1996,569-573

    <19>ilesh Suthar, Christine Hoefich and Brad J. Burrow, ”Diffusion
    barrier properties of TiW between Si and Cu”, J.appl.Phys.73(5)1
    March 1993,pp.2301-2320

    <20> Kubaschewski, C. B. Alcock, ”Metallurgical Thermochemistry”,
    pp.384

    下載圖示 校內:2006-07-08公開
    校外:2007-07-08公開
    QR CODE