Abstract: 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.
Type:
Grant
Filed:
March 13, 2000
Date of Patent:
July 9, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Chongying Xu, Thomas H. Baum, Ziyun Wang
Abstract: A chemical mechanical polishing slurry and method for using the slurry for polishing copper, barrier material and dielectric material that comprises a first and second slurry. The first slurry has a high removal rate on copper and a low removal rate on barrier material. The second slurry has a high removal rate on barrier material and a low removal rate on copper and dielectric material. The first and second slurries at least comprise silica particles, an oxidizing agent, a corrosion inhibitor, and a cleaning agent.
Type:
Grant
Filed:
May 1, 2000
Date of Patent:
June 25, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
William A. Wojtczak, Thomas H. Baum, Long Nguyen, Cary Regulski
Abstract: A gas supply system including a gas cabinet defining an enclosure including therein a gas dispensing manifold and one or more adsorbent-based gas storage and dispensing vessels mounted in the enclosure and joined in gas flow communication with the gas dispensing manifold. The enclosure may be maintained under low or negative pressure conditions for enhanced safety in the event of leakage of gas from the gas storage and dispensing vessel(s) in the enclosure. The gas supply system may be coupled to a gas-consuming unit in a semiconductor manufacturing facility, e.g., an ion implanter, an etch chamber, or a chemical vapor deposition reactor.
Abstract: By reducing the size of the blocks or pages that are contained in a FLASH EEPROM array that must be erased in a write or erase operation, the size of register needed is reduced, making it easier for the processor to handle smaller blocks of information, reducing the size and complexity of the microprocessor, and increasing the endurance of the FLASH EEPROM allowing it to be used in place of the state of the art EEPROM. Replacing mask ROM by flash EEPROM allows full testing of the code storage area as well as allowing customers to use that space for testing in their manufacturing procedures. The code used for testing can then be cleared and reprogrammed with the final code storage before final shipment.
Type:
Grant
Filed:
May 3, 2000
Date of Patent:
June 4, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Trevor Blyth, David Sowards, Dean Allum, Philip C. Barnett
Abstract: 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.
Abstract: A method of removing noble metal material from a substrate having the noble metal material deposited thereon, such as a semiconductor device structure including thereon a layer of the noble metal material, e.g., iridium, patterned for use as an electrode. The substrate is subjected to chemical mechanical polishing with a chemical mechanical polishing composition containing abrasive polishing particles and a halide-based oxidizing agent. The CMP composition and method of the invention provide efficient planarization and noble metal material removal from the substrate, in applications such as the fabrication of ferroelectric or high permittivity capacitor devices.
Type:
Grant
Filed:
December 18, 1998
Date of Patent:
May 28, 2002
Assignees:
Intersurface Dynamics Inc., Advanced Technology Materials, Inc.
Inventors:
Michael W. Russell, Peter C. Van Buskirk, Jonathan J. Wolk, George E. Emond
Abstract: A method and apparatus for abatement of effluent from a CVD process using a source reagent having a metal organic loosely bound to a organic or organomettalic molecule such that upon exposure to heat such bond is readily cleavable, e.g., copper deposition process involving the formation of films on a substrate by metalorganic chemical vapor deposition (CVD) utilizing a precursor composition for such film formation. The abatement process in specific embodiments facilitates high efficiency abatement of effluents from copper deposition processes utilizing Cu(hfac)TMVS as a copper source reagent.
Type:
Grant
Filed:
October 18, 1999
Date of Patent:
May 21, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Mark Holst, Ray Dubois, Jose Arno, Rebecca Faller, Glenn Tom
Abstract: The formulations of the present invention etch doped silicon oxide compounds, such as BPSG and PSG layers, at rates greater than or equal to the etch rate of undoped silicon oxide such as thermal oxide. The formulations have the general composition of a chelating agent, preferably weakly to moderately acidic (0.1-10%; preferably 0.2-2.8%); a fluoride salt, which may be ammonium fluoride or an organic derivative of either ammonium fluoride or a polyammonium fluoride (1.65-7%; preferably 2.25-7%); a glycol solvent (71-98%; preferably 90-98%); and optionally, an amine.
Type:
Grant
Filed:
August 8, 2001
Date of Patent:
May 7, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
William A. Wojtczak, Long Nguyen, Stephen A. Fine
Abstract: Tantalum and titanium source reagents are described, including tantalum amide and tantalum silicon nitride precursors for the deposition of tantalum nitride material on a substrate by processes such as chemical vapor deposition, assisted chemical vapor deposition, ion implantation, molecular beam epitaxy and rapid thermal processing. The precursors may be employed to form diffusion barrier layers on microelectronic device structures enabling the use of copper metallization and ferroelectric thin films in device construction.
Abstract: A cathode structure suitable for a flat panel display is provided with coated emitters. The emitters are formed with material, typically nickel, capable of growing to a high aspect ratio. These emitters are then coated with carbon containing material for improving the chemical robustness and reducing the work function. One coating process is a DC plasma deposition process in which acetylene is pumped through a DC plasma reactor to create a DC plasma for coating the cathode structure. An alternative coating process is to electrically deposit raw carbon-based material onto the surface of the emitters, and subsequently reduce the raw carbon-based material to the carbon containing material. Work function of coated emitters is typically reduced by about 0.8 to 1.0 eV.
Abstract: A ceramic composition having a high adsorptive capacity for oxygen at elevated temperature, including at least one of: Bi2−yEryO3−d; Bi2−yYyO3−d; La1−yBayCo1−xNixO3−d; La1−ySryCo1−xNixO3−d; La1−yCayCo1−xNixO3−d; La1−yBayCo1−xFexO3−d; La1−ySryCo1−xFexO3−d; and La1−yCayCo1−xFexO3−d; wherein x is from 0.2 to 0.8, y is from 0 to 1.0 and d=0.1 to 0.9. Such ceramic composition may be made using a modified Pechini synthetic procedure. The resulting ceramic composition is usefully employed as an adsorbent for separation of oxygen from an oxygen-containing feed gas mixture, e.g., in a pressure swing adsorption (PSA) process.
Type:
Grant
Filed:
November 2, 1999
Date of Patent:
April 2, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Ward C. Stevens, Delwyn Cummings, Philip Chen
Abstract: A pressure swing adsorption system for processing an oxygen-containing feed gas mixture to extract oxygen therefrom, comprising an adsorbent bed arranged for elevated temperature sorption/desorption operation, wherein the adsorbent bed comprises a ceramic adsorbent having affinity for oxygen when the ceramic adsorbent is at elevated temperature. Suitable ceramic adsorbents include lanthanum calcium cobalt ferrites and other oxygen ionic transport ceramic metal oxide compositions. As applied to the separation of air or other oxygen/nitrogen mixtures, the PSA system is effective to produce oxygen-rich as well as nitrogen-rich product gases.
Type:
Grant
Filed:
November 2, 1999
Date of Patent:
March 26, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Ward C. Stevens, Delwyn Cummings, Philip Chen
Abstract: A fluid storage and dispensing system including a fluid storage and dispensing vessel enclosing an interior volume for holding a fluid. The vessel includes a fluid discharge port for discharging fluid from the vessel. A pressure regulating element in the interior volume of the fluid storage and dispensing vessel is arranged to flow fluid therethrough to the fluid discharge port at a set pressure for dispensing thereof. A controller external of the fluid storage and dispensing vessel is arranged to transmit a control input into the vessel to cause the pressure regulating element to change the set pressure of the fluid flowed from the pressure regulating element to the fluid discharge port. By such arrangement, the respective storage and dispensing operations can have differing regulator set point pressures, as for example a subatmospheric pressure set point for storage and a super atmospheric pressure set point for dispensing.
Type:
Grant
Filed:
August 10, 2000
Date of Patent:
March 26, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Luping Wang, Glenn M. Tom, James A Dietz, Steven M. Lurcott, Steven J. Hultquist
Abstract: A method is provided for promoting adhesion of CVD copper to diffusion barrier material in integrated circuit manufacturing. The method uses a two-step CVD copper metallization process. Following deposition of a diffusion barrier layer on the IC substrate, a first layer of CVD copper is deposited on the barrier material. The first layer is preferably thin (less than 300 Å) and deposited using a precursor which yields an adherent conforming layer of copper. The suggested precursor for use in depositing the first layer of CVD copper is (hfac)Cu(1,5-Dimethylcyclooctadiene). The first layer of CVD copper serves as a “seed” layer to which a subsequently-deposited “fill” or “bulk” layer of CVD copper will readily adhere. The second copper deposition step of the two-step process is the deposit of a second layer of copper by means of CVD using another precursor, different from (hfac)Cu(1,5-Dimethylcyclooctadiene).
Type:
Grant
Filed:
July 1, 1998
Date of Patent:
March 12, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Lawrence J. Charneski, Tue Nguyen, Gautam Bhandari
Abstract: A cathode structure suitable for a flat-panel display contains an emitter layer (213) divided into emitter lines, a plurality of electron emitters (229, 239, or 230) situated over the emitter lines, and a gate layer (215A) having an upper surface spaced largely above the electron emitters. The gate layer has a plurality of gate holes (215B) each corresponding to one of the electron emitters. The cathode structure further includes a carbon-containing layer (340, 240, or 241) coated over the electron emitters and directly on at least part of the upper surface of the gate layer such that at least part of the carbon-containing layer extending along and above the gate layer is exposed.
Type:
Grant
Filed:
March 27, 1997
Date of Patent:
March 12, 2002
Assignees:
Candescent Technologies Corporation, Advanced Technology Materials, Inc.
Inventors:
Xueping Xu, George R. Brandes, Christopher J. Spindt, Colin D. Stanners, John M. Macaulay
Abstract: 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.
Abstract: A fully amorphous thin film material that is related to ferroelectric compositions which is grown at low temperature, e.g., below 400° C., to yield a material with voltage independent capacitance, capacitance density of from about 1000 to about 10000 nF/cm2, leakage of <10−7 A/cm2, root mean square roughness <1 nanometer independent of film thickness, and an inverse capacitance that scales as a ratio of film thickness, reflecting uniform dielectric constant throughout the film. The film material may be employed for various capacitor structures, including decoupling capacitors, DRAM storage capacitors, feedthrough capacitors, bypass capacitors, capacitors for RC filters and capacitors for switched capacitor filters.
Abstract: An integrated circuit structures formed by chemical mechanical polishing (CMP) process, which comprises a conductive pathway recessed in a dielectric substrate, wherein the conductive pathway comprises conductive transmission lines encapsulated in a transmission-enhancement material, and wherein the conductive pathway is filled sequentially by a first layer of the transmission-enhancement material followed by the conductive transmission line; a second layer of transmission-enhancement material encapsulating the conductive transmission line and contacting the first layer of the transmission-enhancement material, wherein the transmission-enhancement material is selected from the group consisting of high magnetic permeability material and high permittivity material. Such integrated circuit structure may comprise a device structure selected from the group consisting of capacitors, inductors, and resistors.
Type:
Grant
Filed:
November 25, 1998
Date of Patent:
February 12, 2002
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Peter C. Van Buskirk, Michael W. Russell, Steven M. Bilodeau, Thomas H. Baum
Abstract: A novel lead zirconium titanate (PZT) material having unique properties and application for PZT thin film capacitors and ferroelectric capacitor structures, e.g., FeRAMs, employing such thin film material. The PZT material is scalable, being dimensionally scalable, pulse length scalable and/or E-field scalable in character, and is useful for ferroelectric capacitors over a wide range of thicknesses, e.g., from about 20 nanometers to about 150 nanometers, and a range of lateral dimensions extending to as low as 0.15 &mgr;m. Corresponding capacitor areas (i.e., lateral scaling) in a preferred embodiment are in the range of from about 104 to about 10−2 &mgr;m2. The scalable PZT material of the invention may be formed by liquid delivery MOCVD, without PZT film modification techniques such as acceptor doping or use of film modifiers (e.g., Nb, Ta, La, Sr, Ca and the like).
Type:
Application
Filed:
August 13, 2001
Publication date:
February 7, 2002
Applicant:
Advanced Technology Materials, Inc.
Inventors:
Peter C. Van Buskirk, Jeffrey F. Roeder, Steven M. Bilodeau, Michael W. Russell, Stephen T. Johnston, Daniel J. Vestyck, Thomas H. Baum
Abstract: Chemical vapor deposition (CVD) precursor compositions for forming metal oxide high dielectric constant (&kgr;) 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 Hf, Zr or Ti, 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.
Type:
Application
Filed:
July 17, 2001
Publication date:
February 7, 2002
Applicant:
Advanced Technology Materials Inc.
Inventors:
Thomas H. Baum, Jeffrey F. Roeder, Chongying Xu, Bryan C. Hendrix