摘要:
A method of purifying tetraethylorthosilicate (TEOS) to remove boron impurities therefrom, and a related method of analyzing TEOS to determine concentration of boron impurities therein.
摘要:
Novel Group II metal MOCVD precursor compositions are described having utility for MOCVD of the corresponding Group II metal-containing films. The complexes are Group II metal &bgr;-diketonate Lewis base adducts having ligands such as: (i) amines bearing terminal NH2 groups; (ii) imine ligands formed as amine (i)/carbonyl reaction products; (iii) combination of two or more of the foregoing ligands (i)-(ii), and (iv) combination of one or more of the foregoing ligands (i)-(ii) with one or more other ligands or solvents. The source reagent complexes of barium and strontium are usefully employed in the formation of barium strontium titanate and other Group II doped thin-films on substrates for microelectronic device applications, such as integrated circuits, ferroelectric memories, switches, radiation detectors, thin-film capacitors, microelectromechanical structures (MEMS) and holographic storage media.
摘要:
Copper precursors useful in liquid delivery CVD for forming a copper-containing material on a substrate. The disclosed copper precursors are particularly useful for metallization of interconnections in semiconductor device structures.
摘要:
A platinum source reagent liquid solution, comprising:(i) at least one platinum source compound selected from the group consisting of compounds of the formulae:(A) RCpPt(IV)R'.sub.3 compounds, of the formula: ##STR1## wherein: R is selected from the group consisting of hydrogen, methyl, ethyl, i-propyl, n-propyl, n-butyl, i-butyl, t-butyl, trimethylsilyl and trimethylsilyl methyl; and each R' is independently selected from the group consisting of methyl, ethyl, i-propyl, n-propyl, n-butyl, i-butyl, t-butyl, trimethylsilyl and trimethylsilyl methyl; and(B) Pt(.beta.-diketonates).sub.2 of the formula: ##STR2## wherein: each R" is independently selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, t-butyl, trifluoromethyl, perfluoroethyl, and perfluoro-n-propyl, and(ii) a solvent medium therefor.The platinum source reagent liquid solutions of the invention are readily employed in a chemical vapor deposition process system including a liquid delivery apparatus for volatilizing the source reagent liquid solution and transporting the resulting vapor to the chemical vapor deposition reactor for deposition of platinum on a substrate mounted in the CVD reactor.
摘要:
A metal oxide ceramic layer is formed from an amorphous film. The metal oxide ceramic layer comprises, for example, a Bi-based oxide ceramic, The amorphous Bi-based metal oxide layer is annealed to transformed it into a ferroelectric layer. A lower thermal budget is needed to transform the amorphous Bi-based metal oxide ceramic into the ferroelectric phase.
摘要:
A method is described for the selective deposition of bismuth based ferroelectric films by selective chemical vapor deposition on a substrate. Selectivity in the deposition process is attained by selection of substrate-precursor combinations which assure high bismuth deposition efficiency in certain areas and low bismuth deposition efficiency in other areas in combination with specific process parameters.
摘要:
A method of forming on a substrate a metal film, comprising depositing said metal film on said substrate via chemical vapor deposition from a metalorganic complex of the formula:MA.sub.Y Xwherein:M is a y-valent metal;A is a monodentate or multidentate organic ligand coordinated to M which allows complexing of MA.sub.y with X;y is an integer having a value of 2, 3 or 4; each of the A ligands may be the same or different; andX is a monodentate or multidentate ligand coordinated to M and containing one or more atoms independently selected from the group consisting of atoms of the elements C, N, H, S, O and F.The metal M may be selected from the group consisting of Cu, Ba, Sr, La, Nd, Ce, Pr, Sm, Eu, Th, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Bi, Tl, Y, Pb, Ni, Pd, Pt, Al, Ga, In, Ag, Au, Co, Rh, Ir, Fe, Ru, Sn, Li, Na, K, Rb, Cs, Ca, Mg, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W. A may be selected from the group consisting of .beta.-diketonates, .beta.-thioketonates, cyclopentadienyls, alkyls, perfluoroalkyls, alkoxides, perfluoroalkoxides, and Schiff bases. X may for example comprise a ligand such as tetraglyme, tetrahydrofuran, bipyridine, crown ether, or thioether.
摘要:
A method for n-doping a material layer with antimony, comprising ion implanting antimony from an antimony precursor composition including a compound of the formula SbX.sub.n ((CH.sub.2).sub.y SiR.sub.3).sub.n-3, wherein: n is an integer having a value of 1 or 2; y is an integer having a value of from 1 to 3 inclusive; each R is independently selected from C.sub.1 -C.sub.4 alkyl; and each X is independently selected from halo substituents. The antimony precursor composition may further include a fluorine-containing auxiliary gas, to effect in situ cleaning of the ionization chamber during ion implantation.
摘要:
Anhydrous mononuclear tris(.beta.-diketonato)bismuth complexes, useful as precursors for chemical vapor deposition of bismuth, for producing Bi-containing films of significantly improved stoichiometry, morphology and functional character, as compared to films obtained from dinuclear tris(.beta.-diketonato)bismuth complexes of the prior art.
摘要:
A platinum source reagent liquid solution, comprising: (i) at least one platinum source compound selected from the group consisting of compounds of the formulae: (A) RCpPt(IV)R'.sub.3 compounds, of the formula: ##STR1## wherein: R is selected from the group consisting of hydrogen, methyl, ethyl, i-propyl, n-propyl, n-butyl, i-butyl, t-butyl, trimethylsilyl and trimethylsilyl methyl; and each R' is independently selected from the group consisting of methyl, ethyl, i-propyl, n-propyl, n-butyl, i-butyl, t-butyl, trimethylsilyl and trimethylsilyl methyl; and (B) Pt(.beta.-diketonates).sub.2 of the formula: ##STR2## wherein: each R" is independently selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, t-butyl, trifluoromethyl, perfluoroethyl, and perfluoro-n-propyl, and (ii) a solvent medium therefor. The platinum source reagent liquid solutions of the invention are readily employed in a chemical vapor deposition process system including a liquid delivery apparatus for volatilizing the source reagent liquid solution and transporting the resulting vapor to the chemical vapor deposition reactor for deposition of platinum on a substrate mounted in the CVD reactor.