Organometallic compounds, processes for the preparation...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

Reexamination Certificate

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C556S012000, C556S043000, C556S058000

Reexamination Certificate

active

07547796

ABSTRACT:
This invention relates to organometallic precursor compounds represented by the formula (Cp(R′)x)yM(H)z-y, a process for producing the organometallic precursor compounds, and a method for depositing a metal and/or metal carbide layer, e.g., Ta metal and/or TaC layer, on a substrate by the thermal or plasma enhanced disassociation of the organometallic precursor compounds, e.g., by CVD or ALD techniques. The metal and/or metal carbide layer is useful as a liner or barrier layer for conducting metals and high dielectric constant materials in integrated circuit manufacturing.

REFERENCES:
patent: 3288829 (1966-11-01), Wilkinson
patent: 3437516 (1969-04-01), Tamborski
patent: 5130172 (1992-07-01), Hicks et al.
patent: 5668054 (1997-09-01), Sun et al.
patent: 5789027 (1998-08-01), Watkins et al.
patent: 6015917 (2000-01-01), Bhandare et al.
patent: 6287965 (2001-09-01), Kang et al.
patent: 6342277 (2002-01-01), Sherman
patent: 6379748 (2002-04-01), Bhandari et al.
patent: 6491978 (2002-12-01), Kalyanam
patent: 6541278 (2003-04-01), Morita et al.
patent: 6605735 (2003-08-01), Kawano et al.
patent: 6884901 (2005-04-01), Thompson et al.
patent: 2006/0121307 (2006-06-01), Matsuzawa et al.
patent: 2006/0154482 (2006-07-01), Kondoh et al.
patent: 2006/0216928 (2006-09-01), Chung et al.
patent: 976573 (1964-11-01), None
patent: 2005209272 (1993-08-01), None
patent: 2005069726 (2005-03-01), None
Camanyes et al. “Theoretical Study of the Hydroigen Exchange Coupling in the Metallocene Trihydride Complexes [(C5H5)2MH3]n+(M=Mo, W, n=1; M=Nb, Ta, n=0)”. Journal of the American Chemical Socity. XP-002427863. vol. 118, No. 19, 1996, pp. 4617-4621 (5 pgs).
Girling et al. “Vibrational Spectra of Terminal Metal Hydrides: Solution and Matrix-Isolation Studies of [(η—C5H5)2MHη]x+(M=Re, Mo, W, Nb, Ta; n=1-3; x=0,1)”. Inorganic Chemistry, XP-002427864, vol. 25, No. 1, pp. 31-36 (6 pgs.) (1986).
Lokshin et al. “Spectroscocpy of Unstable Complexes of Organometallic Compounds with Small Molecules at Low Temperatures.” Journal of Molecular Structure, XP-002427865, vol. 222 (1990) pp. 11-20 (10 pgs).
Schrock et al. “Multiple Metal—Carbon Bonds. 7. Preparation and Characterization of Ta(η5-C5H5)2(CH2) (CH3), a Study of Its Decomposition, and Some Simple Reactions”. Journal of the American Chemical Society. XP-0002427862. vol. 100, No. 8, 1978, pp. 1289-2399 (11 pgs) (1978).
Spee et al. “Tungsten Deposition by Organometallic Chemical Vapour Deposition with Organotungsten Precursors”. Materials Science and Engineering, B: Solid-State Materials for Advanced Technology, XP-002427866, B17(1-3), pp. 108-111 (4 pgs.) (1993).
Zvukova et al. “Convenient Method of Synthesis of Cp2TaH3”. Russian Chemical Bulletin, XP-002427861, vol. 44, No. 10, Oct. 1995, p. 1970 (1 pg.).
Stolz et al., Universal Chemical Vapour Deposition System for Metallurgical Coatings,Thin Solid Films, 100, (1983) 209-218.
Papke et al., “Evaluation of Metal-Organic Compounds as Materials for Chemical Vapor Deposition”,Proceedings of the Conference on CVD Refractory Metals, 1975, 193-203.
Green et al., “The Di-π-cyclopentadienyl Hydrides of Tantalum, Molybdenum, and Tungsten”,Journal of the Chemical Society-A, 1961, 4854.
Bunker et al., “Mono-and Bis-η-cyclopentadienyl Derivatives of Niobium and Tantalum: Improved Synthetic Routes via Trialkyl (cyclopentadienyl)tin Reagents”,Journal of the Chemical Society, -Dalton, 1980, 2155.
Zvukova et al., “Comparative Study of Methods for the Synthesis of Tantalocene Trihydride”,Metalloorganicheskaya Khimiya, vol. 1, No. 5, pp. 1179-1183, 1988.
Atwood, J.D. et al., “Novel Precursors for High K Dielectrics and Metal Electrodes Part II: Deposition”,Electrochemical Society Proceedings, vol. 2003-08, pp. 847-854 (2003).
Legzdins, P. et al., “Dicarbonyl(η5-Cyclopentadienyl)Nitrosyl Complexes of Chromium, Molybdenum, and Tungsten”,Inorg. Synth., 28, p. 196-198 (1990).

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