摘要:
Precursor compositions useful for atomic layer deposition (ALD) and chemical vapor deposition (CVD) of strontium ruthenium oxide (SrRuO3) thin films, e.g., in the manufacture of microelectronic devices, as well as processes of making and using such precursors, and precursor supply systems containing such precursor compositions in packaged form. Cyclopentadienyl compounds of varied type are described, including cyclopentadienyl as well as non cyclopentadienyl ligands coordinated to ruthenium, strontium or barium central atoms. The precursors of the invention are useful for forming contacts for microelectronic memory device structures, and in a specific aspect for selectively coating copper metallization without deposition on associated dielectric, under deposition conditions in a forming gas ambient.
摘要:
A method of improving the physical and/or electrical and/or magnetic properties of a thin film material formed on a substrate, wherein the properties of the thin film material are stress-dependent, by selectively applying force to the substrate during the film formation and/or thereafter during the cooling of the film in the case of a film formed at elevated temperature, to impose through the substrate an applied force condition opposing or enhancing the retention of stress in the product film. The method of the invention has particular utility in the formation of ferroelectric thin films which are grown at temperature above the Curie temperature, and which may be placed in tension during the cooling of the film to provide ferroelectric domains with polarization in the plane of the film.
摘要:
Zirconium, hafnium, titanium and silicon precursors useful for atomic layer deposition (ALD) and chemical vapor deposition (CVD) of corresponding zirconium-containing, hafnium-containing, titanium-containing and silicon-containing films, respectively. The disclosed precursors achieve highly conformal deposited films characterized by minimal carbon incorporation.
摘要:
An integrated circuit barrier structure disposed between high dielectric constant metal oxide and Cu or Al electrodes, for preventing diffusion of species such as oxygen, bismuth, or lead from the high dielectric constant metal oxide into the Cu or Al electrodes. Such barrier structure also protects the Cu or Al electrodes against oxidization during deposition of the high dielectric constant metal oxide. The barrier structure can be formed as (1) a single layer of Pt, Ir, IrO2, Ir2O3, Ru, RuO2, CuO, Cu2O, Al2O3, or a binary or ternary metal nitride, e.g., TaN, NbN, HfN, ZrN, WN, W2N, TiN, TiSiN, TiAlN, TaSiN, or NbAlN, or (2) double or triple layers of such materials, e.g., Pt/TiAlN, Pt/IrO2, Pt/Ir, Ir/TiAlN, Ir/IrO2, IrO2/TiAlN, IrO2/Ir, or IrO2/Ir2O3/Ir. Such barrier structures enable Cu or Al electrodes to be used in combination with high dielectric constant metal oxides in microelectronic structures such as ferroelectric stack and trench capacitors, non-volatile ferroelectric memory cells, and dynamic random access memory (DRAM) cells.
摘要:
A method of improving the physical and/or electrical and/or magnetic properties of a thin film material formed on a substrate, wherein the properties of the thin film material are stress-dependent, by selectively applying force to the substrate during the film formation and/or thereafter during the cooling of the film in the case of a film formed at elevated temperature, to impose through the substrate an applied force condition opposing or enhancing the retention of stress in the product film. The method of the invention has particular utility in the formation of ferroelectric thin films which are grown at temperature above the Curie temperature, and which may be placed in tension during the cooling of the film to provide ferroelectric domains with polarization in the plane of the film.
摘要:
High-k materials and devices, e.g., DRAM capacitors, and methods of making and using the same. Various methods of forming perovskite films are described, including methods in which perovskite material is deposited on the substrate by a pulsed vapor deposition process involving contacting of the substrate with perovskite material-forming metal precursors. In one such method, the process is carried out with doping or alloying of the perovskite material with a higher mobility and/or higher volatility metal species than the metal species in the perovskite material-forming metal precursors. In another method, the perovskite material is exposed to elevated temperature for sufficient time to crystallize or to enhance crystallization of the perovskite material, followed by growth of the perovskite material under pulsed vapor deposition conditions. Various perovskite compositions are described, including: (Sr, Pb)TiO3; SrRuO3 or SrTiO3, doped with Zn, Cd or Hg; Sr(Sn,Ru)O3; and Sr(Sn,Ti)O3.
摘要:
Precursor compositions useful for atomic layer deposition (ALD) and chemical vapor deposition (CVD) of strontium ruthenium oxide (SrRuO3) thin films, e.g., in the manufacture of microelectronic devices, as well as processes of making and using such precursors, and precursor supply systems containing such precursor compositions in packaged form. Cyclopentadienyl compounds of varied type are described, including cyclopentadienyl as well as non cyclopentadienyl ligands coordinated to ruthenium, strontium or barium central atoms. The precursors of the invention are useful for forming contacts for microelectronic memory device structures, and in a specific aspect for selectively coating copper metallization without deposition on associated dielectric, under deposition conditions in a forming gas ambient.
摘要:
A composite dielectric material including an early transition metal or metal oxide base material and a dopant, co-deposited, alloying or layering secondary material, selected from among Nb, Ge, Ta, La, Y, Ce, Pr, Nd, Gd, Dy, Sr, Ba, Ca, and Mg, and oxides of such metals, and alumina as a dopant or alloying secondary material. Such composite dielectric material can be formed by vapor deposition processes, e.g., ALD, using suitable precursors, to form microelectronic devices such as ferroelectric high k capacitors, gate structures, DRAMs, and the like.
摘要:
A full fill trench structure comprising a microelectronic device substrate having a high aspect ratio trench therein and a full filled mass of silicon dioxide in the trench, wherein the silicon dioxide is of a substantially void-free character and has a substantially uniform density throughout its bulk mass. A corresponding method of manufacturing a semiconductor product is described, involving use of specific silicon precursor compositions for use in full filling a trench of a microelectronic device substrate, in which the silicon dioxide precursor composition is processed to conduct hydrolysis and condensation reactions for forming the substantially void-free and substantially uniform density silicon dioxide material in the trench. The fill process may be carried out with a precursor fill composition including silicon and germanium, to produce a microelectronic device structure including a GeO2/SiO2 trench fill material. A suppressor component, e.g., methanol, may be employed in the precursor fill composition, to eliminate or minimize seam formation in the cured trench fill material.