Coating processes – Electrical product produced – Superconductor
Reexamination Certificate
2006-08-15
2006-08-15
Talbot, Brian K. (Department: 1762)
Coating processes
Electrical product produced
Superconductor
C427S255280, C029S599000, C505S473000, C505S732000
Reexamination Certificate
active
07090889
ABSTRACT:
Boride thin films of conducting and superconducting materials are formed on silicon by a process which combines physical vapor deposition with chemical vapor deposition. Embodiments include forming boride films, such as magnesium diboride, on silicon substrates by physically generating magnesium vapor in a deposition chamber and introducing a boron containing precursor into the chamber which combines with the magnesium vapor to form a thin boride film on the silicon substrates.
REFERENCES:
patent: 3791852 (1974-02-01), Bunshah
patent: 3949119 (1976-04-01), Shewchun et al.
patent: 5032571 (1991-07-01), Takemura
patent: 6514557 (2003-02-01), Finnemore et al.
patent: 6579360 (2003-06-01), Balachandran et al.
patent: 6797341 (2004-09-01), Zeng et al.
patent: 2002/0132739 (2002-09-01), Kang et al.
patent: 2002/0173428 (2002-11-01), Thieme et al.
Zeng et al. , “In Situ epitaxial MgB2 thin films for superconducting electronics”, Letters, Sep. 02, 2002, pp. 1-4.
Cava et al., “Reactivity of MgB2 with common substrate electronic materials”, Applied Physics Letters, vol. 80, No. 2, Jan. 14, 2002.
Blank et al. “Superconducting Mg-B films by pulsed laser deposition in an situ two-step process using multicomponent targets”, Applied Physic Letters, vol. 79, No. 1, Jul. 16, 2001.
Rointan F. Bunshah et al., “Deposition Technologies for Films and Coatings”, Copyright 1982, pp. 83, 122, 126, 127.
Xianghui Zeng, et al“In situepitaxial MgB2thin films for superconducting electronics”, Nature Materials, vol. 1, Sep. 2002, pp. 1-3.
John Rowell “Magnesium Diboride, Superior thin films”, Nature Mateials, vol. 1, Sep., 2002, pp. 5-6.
Li-Kui Liu, et al., “Thermodynamics of the Mg-B system: Implications for the deposition of MgB2thin films” Applied Physics Letters, vol. 78, No. 23, Jun. 4, 2001, pp. 3678-3680.
Ron Dagani, “Superior Superconducting Films of MgB2”, C&EN: Today's Headlines, Sep. 9, 2002, vol. 80, No. 36.
Saito et al., “As-Grown MgB2Thin Films Deposited on AI2O3Substrates With Different Crystal Planes”, Institute of Physics Publishing, pp. 1-6.
Saito et al., As Grown MgB2Thin Films Deposited on AI2O3Substrates With Different Crystal Plane, 1 page.
Saito et al., “As-Grown Deposition Of Superconducting MgB2Thin Films By Multiple-Target Sputtering System”, Reprinted from Jpn. J. Appl. Phys. vol. 41 (2002) pp. L127-129.
(Translation of Reference AP filed with the IDS dated Sep. 9, 2002)—Shimakage et al., Low Temperature Fabrication Of As-As-Grown MgB2Thin Films By Co-Vapor Deposition Method, Communications Research Laboratory Independent Adminsitrative Institution, 2 pages.
Liu et al., “Thermodynamic Reactivity of the Magnesium Vapor With Substrate Materials During MgB2Deposition”, 2003 Elsevier B.V. All rights reserved, doi:10.1016/j.physc.2003.07.006.
T. He et al., “Reactivity of MgB2With Common Substrate and Electronic Materials”, Applied Physics Letters, vol. 80, No. 2, Jan. 14, 2002, pp. 291-293.
Zi-Kui Liu et al., “Computational Thermodynamic Modeling of the Mg-B System”,Calphad, vol. 25, No. 2, pp. 299-303.
Zeng, Xianghul., et al. “In situ epitaxial MgB2thin films for superconducting electronics.” Nature Materials, vol. 1, Sep. 2002, www.nature.com
aturematerials pp. 1-4.
PCT/IB/326 for International Application No. PCT/US2004/005289 filed Feb. 24, 2004 claiming priority of Feb. 28, 2003.
PCT/IB/273 (Written Opinion) for International Application No. PCT/US2004/005289 filed Feb. 24, 2004 claiming priority of Feb. 28, 2003.
Liu Zhi-Jie
Liu Zi-Kui
Xi Xiaoxing
McDermott Will & Emery LLP
Talbot Brian K.
The Penn State Research Foundation
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