摘要:
A system and process for utilization and disposition of a supercritical fluid composition, in which a supercritical fluid (SCF) composition is used in an SCF-using process facility such as a semiconductor manufacturing plant. The supercritical fluid composition is withdrawn from the process facility containing at least one component that is extraneous with respect to the further disposition of the supercritical fluid composition. The withdrawn supercritical fluid composition is converted to a pressurized liquid, which is treated to at least partially remove the extraneous component(s) therefrom. The extraneous component(s)-depleted pressurized liquid in its further disposition can be reconverted to a supercritical state for recycle to the SCF-using process facility, or it can be gasified and discharged to the atmosphere in the case of supercritical fluids such as CO2.
摘要:
A low temperature CVD process using a tris (&bgr;-diketonate) bismuth precursor for deposition of bismuth ceramic thin films suitable for integration to fabricate ferroelectric memory devices. Films of amorphous SBT can be formed by CVD and then ferroannealed to produce films with Aurivillius phase composition having superior ferroelectric properties suitable for manufacturing high density FRAMs.
摘要:
A chemical mechanical polishing slurry composition and method for using the slurry composition for polishing copper, barrier material and dielectric material that comprises first and second-step slurries. The first-step slurry has a high removal rate on copper and a low removal rate on barrier material. The second-step slurry has a high removal rate on barrier material and a low removal rate on copper and dielectric material. The first slurry comprises at least an organic polymeric abrasive.
摘要:
Chemical vapor deposition (CVD) precursor compositions for forming Zr/Hf doped gate dielectric, ferroelectric, or high dielectric constant (k) metal oxide thin films. The precursor composition in one embodiment comprises a metal precursor having a general formula M(&bgr;-diketonate)2(OR)2, wherein M is Zr or Hf, and R is t-butyl. The precursor composition may also comprise a solvent medium selected from the group consisting of ethers, glymes, tetraglymes, amines, polyamines, alcohols, glycols, aliphatic hydrocarbon solvents, aromatic hydrocarbon solvents, cyclic ethers, and compatible combinations of two or more of the foregoing.
摘要:
Copper pyrazolate precursor compositions useful for the formation of copper in semiconductor integrated circuits, e.g., interconnect metallization in semiconductor device structures, as an adhesive seed layer for plating, for the deposition of a thin-film recording head and for circuitization of packaging components. The copper pyrazolate precursor compositions include fluorinated and non-fluorinated pyrazolate copper (I) complexes and their Lewis base adducts. Such precursors are usefully employed for liquid delivery chemical vapor deposition of copper or copper-containing material on a substrate.
摘要:
A precursor composition for forming a zirconium and/or hafnium silicate film on a substrate, e.g., by chemical vapor deposition (CVD). Illustrative precursor compositions include (1) a first precursor metal compound or complex including a silicon alcoxide (siloxide) ligand coordinated to a metal M, wherein M=Zr or Hf and (2) a second precursor metal compound or complex including an aliphatic alcoxide ligand coordinated to a metal M, wherein M=Zr or Hf, wherein the relative proportions of the first and second precursors relative to one another are employed to controllably establish the M/Si ratio in the deposited silicate thin film. The precursor composition may contain a solvent medium, so that the composition is adapted for liquid delivery CVD, to form stable thin-film gate dielectrics for fabrication of microelectronic devices.
摘要:
Reduced diffusion of excess mobile specie from a metal oxide ceramic is achieved by tailoring the composition an/or deposition parameters. A barrier layer which reacts with the excess mobile specie is provided below the metal oxide ceramic to prevent or reduce the diffusion of the excess mobile specie through the bottom electrode and into the substrate.
摘要:
A method of forming an iridium-containing film on a substrate, from an iridium-containing precursor thereof which is decomposable to deposit iridium on the substrate, by decomposing the precursor and depositing iridium on the substrate in an oxidizing ambient environment which may for example contain an oxidizing gas such as oxygen, ozone, air, and nitrogen oxide. Useful precursors include Lewis base stabilized Ir(I) &bgr;-diketonates and Lewis base stabilized Ir(I) &bgr;-ketoiminates. The iridium deposited on the substrate may then be etched for patterning an electrode, followed by depositing on the electrode a dielectric or ferroelectric material, for fabrication of thin film capacitor semiconductor devices such as DRAMs, FRAMs, hybrid systems, smart cards and communication systems.
摘要:
A solvent composition useful for liquid delivery MOCVD, comprising toluene and a Lewis base, wherein toluene is present at a concentration of from about 75% to about 98% by volume, based on the total volume of toluene and the Lewis base. Such solvent composition is usefully employed to dissolve or suspend precursors therein for liquid delivery MOCVD, e.g., MOCVD of ferroelectric material films such as SBT.
摘要:
A low temperature CVD process using a tris (&bgr;-diketonate) bismuth precursor for deposition of bismuth ceramic thin films suitable for integration to fabricate ferroelectric memory devices. Films of amorphous SBT can be formed by CVD and then ferroannealed to produce films with Aurivillius phase composition having superior ferroelectric properties suitable for manufacturing high density FRAMs.