Patents by Inventor Chao-Shiuan Liu

Chao-Shiuan Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7112690
    Abstract: A series of noble metal organometallic complexes of the general formula (I): MLaXb(FBC)c, wherein M is a noble metal such as iridium, ruthenium or osmium, and L is a neutral ligand such as carbonyl, alkene or diene; X is an anionic ligand such as chloride, bromide, iodide and trifluoroacetate group; and FBC is a fluorinated bidentate chelate ligand such as beta diketonate, beta-ketoiminate, amino-alcoholate and amino-alcoholate ligand, wherein a is an integer of from zero (0) to three (3), b is an integer of from zero (0) to one (1) and c is an 10 integer of from one (1) to three (3). The resulting noble metal complexes possess enhanced volatility and thermal stability characteristics, and are suitable for chemical vapor deposition(CVD) applications. The corresponding noble metal complex is formed by treatment of the FBC ligand with a less volatile metal halide.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: September 26, 2006
    Assignees: National Research Council of Canada, National Tsing Hua University
    Inventors: Yun Chi, Yao-Lun Chen, Chao-Shiuan Liu, Yi-Hwa Song, Ying-Hui Lai, Arthur J. Carty
  • Publication number: 20050033075
    Abstract: A series of noble metal organometallic complexes of the general formula (I): MLaXb(FBC)c, wherein M is a noble metal such as iridium, ruthenium or osmium, and L is a neutral ligand such as carbonyl, alkene or diene; X is an anionic ligand such as chloride, bromide, iodide and trifluoroacetate group; and FBC is a fluorinated bidentate chelate ligand such as beta diketonate, beta-ketoiminate, amino-alcoholate and amino-alcoholate ligand, wherein a is an integer of from zero (0) to three (3), b is an integer of from zero (0) to one (1) and c is an 10 integer of from one (1) to three (3). The resulting noble metal complexes possess enhanced volatility and thermal stability characteristics, and are suitable for chemical vapor deposition(CVD) applications. The corresponding noble metal complex is formed by treatment of the FBC ligand with a less volatile metal halide.
    Type: Application
    Filed: November 8, 2002
    Publication date: February 10, 2005
    Inventors: Yun Chi, Yao-Lun Chen, Chao-Shiuan Liu, Yi-Hwa Song, Ying-Hui Lai, Arthur Carty
  • Patent number: 6369256
    Abstract: Volatile low melting solid Cu(II) metal complexes are provided which are capable of depositing a copper film on various substrates under CVD conditions in the absence of reducing carrier gas H2. These CU(II) metal complexes are represented by the structure formula: Cu(OCCF3R1CH2NHR2)2 wherein R1 is selected from hydrogen, C1-C4 lower-alkyl or perfluorinated C1-C4 lower-alkyl groups, e.g., CH3, and CF3, etc., and wherein R2 is C1-C6 lower-alkyl or C1-C6 lower-alkene, which may be substituted by one or more fluorine atoms, by a C1-C6 lower-alkoxy group or by a C1-C6 di-lower-alkyl amino group, provided that when R1 is CF3, R2 is other than hydrogen or methyl. A process for depositing copper film using these Cu(II) metal complexes is also provided.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 9, 2002
    Assignees: National Research Council of Canada, National Tsing-Hua University
    Inventors: Yun Chi, Peng-Fu Hsu, Tsung-Wu Lin, Chao-Shiuan Liu, Arthur J. Carty
  • Patent number: 6303809
    Abstract: A series of organometallic complexes of the general formula [M(CO)2L2] was provided, wherein M is ruthenium or osmium metal, and L is a &bgr;-diketonate ligand RC(O)CHC(O)R1 where each of R and R1 is independently selected from the group consisting of atoms of the element, C, H, O and F. These ruthenium and osmium complexes possess enhanced volatility and thermal stability characteristics, and are very suitable for CVD applications. Also disclosed are CVD methods by using these ruthenium or osmium complexes as source reagents for deposition of Ru, Os, RuO2, OsO2, and other Ru- or Os-containing films such as mixed metal oxide materials BaRuO3, SrRuO3, Sr2RuO4 and Bi2Ru2O7 or bimetallic alloys Pt/Ru and Pd/Ru.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: October 16, 2001
    Inventors: Yun Chi, Feng Jen Lee, Chao-Shiuan Liu