摘要:
A method of forming a ruthenium-containing film in a vapor deposition process, including depositing ruthenium with an assistive metal species that increases the rate and extent of ruthenium deposition in relation to deposition of ruthenium in the absence of such assistive metal species. An illustrative precursor composition useful for carrying out such method includes a ruthenium precursor and a strontium precursor in a solvent medium, wherein one of the ruthenium and strontium precursors includes a pendant functionality that coordinates with the central metal atom of the other precursor, so that ruthenium and strontium co-deposit with one another. The method permits incubation time for ruthenium deposition on non- metallic substrates to be very short, thereby accommodating very rapid film formation in processes such as atomic layer deposition.
摘要:
Apparatus and method for generating ruthenium tetraoxide in situ for use in vapor deposition, e.g., atomic layer deposition (ALD), of ruthenium-containing films on microelectronic device substrates. The ruthenium tetraoxide can be generated on demand by reaction of ruthenium or ruthenium dioxide with an oxic gas such as oxygen or ozone. In one implementation, ruthenium tetraoxide thus generated is utilized with a strontium organometallic precursor for atomic layer deposition of strontium ruthenate films of extremely high smoothness and purity.
摘要:
A method of forming a ruthenium-containing film in a vapor deposition process, including depositing ruthenium with an assistive metal species that increases the rate and extent of ruthenium deposition in relation to deposition of ruthenium in the absence of such assistive metal species. An illustrative precursor composition useful for carrying out such method includes a ruthenium precursor and a strontium precursor in a solvent medium, wherein one of the ruthenium and strontium precursors includes a pendant functionality that coordinates with the central metal atom of the other precursor, so that ruthenium and strontium co-deposit with one another. The method permits incubation time for ruthenium deposition on non-metallic substrates to be very short, thereby accommodating very rapid film formation in processes such as atomic layer deposition.
摘要:
Apparatus and method for generating ruthenium tetraoxide in situ for use in vapor deposition, e.g., atomic layer deposition (ALD), of ruthenium-containing films on microelectronic device substrates. The ruthenium tetraoxide can be generated on demand by reaction of ruthenium or ruthenium dioxide with an oxic gas such as oxygen or ozone. In one implementation, ruthenium tetraoxide thus generated is utilized with a strontium organometallic precursor for atomic layer deposition of strontium ruthenate films of extremely high smoothness and purity.
摘要:
A method of forming a dielectric material, comprising doping a zirconium oxide material, using a dopant precursor selected from the group consisting of Ti(NMe2)4; Ti(NMeEt)4; Ti(NEt2)4; TiCl4; tBuN═Nb(NEt2)3; tBuN═Nb(NMe2)3; t-BuN═Nb(NEtMe)3; t-AmN═Nb(NEt2)3; t-AmN═Nb(NEtMe)3; t-AmN═Nb(NMe2)3; t-AmN═Nb(OBu-t)3; Nb-13; Nb(NEt2)4; Nb(NEt2)5; Nb(N(CH3)2)5; Nb(OC2H5)5; Nb(thd)(OPr-i)4; SiH(OMe)3; SiCU; Si(NMe2)4; (Me3Si)2NH; GeRax(ORb)4.x wherein x is from 0 to 4, each Ra is independently selected from H or C1-C8 alkyl and each Rb is independently selected from C1-C8 alkyl; GeCl4; Ge(NRa2)4 wherein each Ra is independently selected from H and C1-C8 alkyl; and (Rb3Ge)2NH wherein each Rb is independently selected from C1-C8 alkyl; bis(N,N′-diisopropyl-1,3-propanediamide) titanium; and tetrakis(isopropylmethylamido) titanium; wherein Me is methyl, Et is ethyl, Pr-i is isopropyl, t-Bu is tertiary butyl, t-Am is tertiary amyl, and thd is 2,2,6,6-tetramethyl-3,5-heptanedionate. Doped zirconium oxide materials of the present disclosure are usefully employed in ferroelectric capacitors and dynamic random access memory (DRAM) devices.
摘要:
Precursors useful for vapor phase deposition processes, e.g., CVD/ALD, to form metal-containing films on substrates. The precursors include, in one class, a central metal atom M to which is coordinated at least one ligand of formula (I): wherein: R1, R2 and R3 are each independently H or ogano moieties; and G1 is an electron donor arm substituent that increases the coordination of the ligand to the central metal atom M; wherein when G1 is aminoalkyl, the substituents on the amino nitrogen are not alkyl, fluoroalkyl, cycloaliphatic, or aryl, and are not connected to form a ring structure containing carbon, oxygen or nitrogen atoms. Also disclosed are ketoester, malonate and other precursors adapted for forming metal-containing films on substrates, suitable for use in the manufacture of microelectronic device products such as semiconductor devices and flat panel displays.
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:
Zirconium precursors of the formulae Such precursors are liquids at room temperature, and can be employed in vapor deposition processes such as ALD to form zirconium-containing films, e.g., high k dielectric films on microelectronic device substrates. The zirconium precursors can be stabilized in such vapor deposition processes by thermal stabilization amine additives.
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:
Barium, strontium, tantalum and lanthanum precursor compositions useful for atomic layer deposition (ALD) and chemical vapor deposition (CVD) of titanate thin films. The precursors have the formula M(Cp)2, wherein M is strontium, barium, tantalum or lanthanum, and Cp is cyclopentadienyl, of the formula wherein each of R1-R5 is the same as or different from one another, with each being independently selected from among hydrogen, C1-C12 alkyl, C1-C12 amino, C6-C10 aryl, C1-C12 alkoxy, C3-C6 alkylsilyl, C2-C12 alkenyl, R1R2R3NNR3, wherein R1, R2 and R3 may be the same as or different from one another and each is independently selected from hydrogen and C1-C6 alkyl, and pendant ligands including functional group(s) providing further coordination to the metal center M. The precursors of the above formula are useful to achieve uniform coating of high dielectric constant materials in the manufacture of flash memory and other microelectronic devices.