Characterized By Materials (epo) Patents (Class 257/E23.072)
  • Patent number: 7786578
    Abstract: The present invention provides a method for producing thin nickel (Ni) monosilicide or NiSi films (having a thickness on the order of about 30 nm or less), as contacts in CMOS devices wherein an amorphous Ni alloy silicide layer is formed during annealing which eliminates (i.e., completely by-passing) the formation of metal-rich silicide layers. By eliminating the formation of the metal-rich silicide layers, the resultant NiSi film formed has improved surface roughness as compared to a NiSi film formed from a metal-rich silicide phase. The method of the present invention also forms Ni monosilicide films without experiencing any dependence of the dopant type concentration within the Si-containing substrate that exists with the prior art NiSi films.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: August 31, 2010
    Assignee: International Business Machines Corporation
    Inventors: Christophe Detavenier, Simon Gaudet, Christian Lavoie, Conal E. Murray
  • Publication number: 20100213608
    Abstract: Disclosed is an under bump metallization structure including a plurality of metal or metal alloy layers formed on chip bond pads. The disclosed UBM structure has a stress improvement on the semiconductor device because the thickness of the copper-base layer is reduced to between about 0.3 and 10 microns, preferably between about 0.3 and 2 micron. The presence of the pure tin layer prevents oxidation and contamination of the nickel-base layer. It also forms a good solderable surface for the subsequent processes. Also disclosed are semiconductor devices having the disclosed UBM structure and the methods of making the semiconductor devices.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 26, 2010
    Inventors: Siong Cho Lau, Tze Peng Theng
  • Publication number: 20100213613
    Abstract: An electrical connection arrangement between a semiconductor circuit arrangement and an external contact device, and to a method for producing the connection arrangement is disclosed. In one embodiment, a metallic layer is deposited onto at least one contact terminal and/or the contacts and the wire, the metallic layer protecting the contact terminal or the electrical connection against ambient influences and ensuring a high reliability.
    Type: Application
    Filed: April 29, 2010
    Publication date: August 26, 2010
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Thomas Laska, Matthias Stecher, Gregory Bellynck, Khalil Hosseini, Joachim Mahler
  • Patent number: 7772697
    Abstract: A semiconductor device includes a tape carrier substrate having a flexible insulating film base, a plurality of conductor wirings provided on the film base, and wiring bumps respectively formed so as to cover an upper surface and both side surfaces of the conductor wirings, and a semiconductor chip mounted on the tape carrier substrate, wherein electrodes of the semiconductor chip are connected to the conductor wirings via the wiring bumps. Electrode bumps are formed on the electrodes of the semiconductor chip, the electrodes of the semiconductor chip are connected to the conductor wirings via a bonding between the wiring bumps and the electrode bumps, and the electrode bumps are harder than the wiring bumps. This structure can reduce bonding damages to the electrodes of the semiconductor chip caused by a process of connecting the electrodes and the conductor wirings via the bumps.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: August 10, 2010
    Assignee: Panasonic Corporation
    Inventors: Kazuhiko Matsumura, Nozomi Shimoishizaka
  • Publication number: 20100181675
    Abstract: A semiconductor package with wedge bonded chip. One embodiment provides a semiconductor chip, a wire bond and a metal element. The chip includes a bond pad with a copper layer. The wire bond is wedge bonded to the bond pad and ball bonded to the metal element.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 22, 2010
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Dexter Reynoso, Erwin Orejola
  • Publication number: 20100155955
    Abstract: A method of manufacturing a System In Package (SIP) and devices thereof. A method of manufacturing a SIP may include providing a first chip having a first substrate region and/or a first metal connection portion. A method of manufacturing a SIP may include providing a second chip having a second substrate region and/or a second metal connection portion. A method of manufacturing a SIP may include bonding a first metal connection portion with a second metal connection portion, which may stack a second chip with a first chip. A method of manufacturing a SIP may include subjecting a second substrate region to reactive ion etching to expose a portion of a second metal connection portion and/or to form a deep contact hole. A method of manufacturing a SIP may include treating a surface of a deep contact hole with tetra-methyl ammonium hydroxide and/or nitric acid.
    Type: Application
    Filed: November 17, 2009
    Publication date: June 24, 2010
    Inventor: Chung-Kyung Jung
  • Publication number: 20100155938
    Abstract: An integrated circuit (IC) product includes a redistribution layer (RDL) having at least one conductive layer configured to distribute electrical information from one location to another location in the IC. The RDL also includes a plurality of wire bond pads and a plurality of solder pads. The plurality of solder pads each includes a solder wettable material that is in direct electrical communication with the RDL.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 24, 2010
    Applicant: ATI TECHNOLOGIES ULC
    Inventors: Liane Martinez, Roden R. Topacio, Yip Seng Low
  • Publication number: 20100084682
    Abstract: There are provided an ohmic electrode, which includes a contact layer made of an Al alloy and formed on a nitride-based semiconductor layer functioning as a light emitting layer, a reflective layer made of Ag metal, formed on the contact layer and having some particles in-diffused to the semiconductor layer, and a protective layer formed on the reflective layer to restrain out-diffusion of the reflective layer; a method of forming the ohmic electrode; and a semiconductor light emitting element having the ohmic electrode. The present invention has strong adhesive strength and low contact resistance since the reflective layer and the light emitting layer directly form an ohmic contact due to the interface reaction during heat treatment, and the present invention has high light reflectance and excellent thermal stability since the contact layer and the protective layer restrain out-diffusion of the reflective layer during heat treatment.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 8, 2010
    Applicant: Postech Academy-Industry Foundation
    Inventors: Jong Lam Lee, Sang Han Lee
  • Publication number: 20100052162
    Abstract: A semiconductor device, includes a semiconductor substrate; and a solder bump part, which is formed on the semiconductor substrate and in which no grain boundary extends equal to or over ? of a diameter dimension of said solder bump part from an outer circumferential surface between an end of a connection part with the semiconductor substrate and a lateral portion.
    Type: Application
    Filed: July 2, 2009
    Publication date: March 4, 2010
    Inventor: Tadashi IIJIMA
  • Publication number: 20100032840
    Abstract: A semiconductor device with an improved solder joint system is described. The solder system includes two copper contact pads connected by a body of solder and the solder is an alloy including tin, silver, and at least one metal from the transition groups IIIA, IVA, VA, VIA, VIIA, and VIIIA of the Periodic Table of the Elements. The solder joint system also includes, between the pads and the solder, layers of intermetallic compounds, which include grains of copper and tin compounds and copper, silver, and tin compounds. The compounds contain the transition metals. The inclusion of the transition metals in the compound grains reduce the compound grains size and prevent grain size increases after the solder joint undergoes repeated solid/liquid/solid cycles.
    Type: Application
    Filed: October 19, 2009
    Publication date: February 11, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Masazumi AMAGAI
  • Publication number: 20100013092
    Abstract: Provided is a semiconductor device having a bump structure which is capable of resolving inconvenience in mounting. The semiconductor device comprises: an electrode pad; and a columnar bump formed on the electrode pad, the columnar bump comprising: a first high melting point metal layer (14) formed on the electrode pad; a first solder (15) formed on the first high melting point metal layer (14); a second high melting point metal layer (16) formed on the first solder (15); and a second solder (17) which is formed on the second high melting point metal layer (16) and is connected to an external.
    Type: Application
    Filed: July 8, 2009
    Publication date: January 21, 2010
    Applicant: NEC ELECTRONIC CORPORATION
    Inventor: Tsuyoshi Eda
  • Publication number: 20090321733
    Abstract: Methods and compositions for depositing a metal containing film on a substrate are disclosed. A reactor and at least one substrate disposed in the reactor are provided. A metal containing precursor is provided and introduced into the reactor, which is maintained at a temperature of at least 100° C. A metal is deposited on to the substrate through a deposition process to form a thin film on the substrate.
    Type: Application
    Filed: June 25, 2009
    Publication date: December 31, 2009
    Inventors: Julien GATINEAU, Kazutaka Yanagita, Singo Okubo
  • Publication number: 20090289364
    Abstract: A semiconductor device according to the present invention includes: a semiconductor chip; a sealing resin layer formed on the semiconductor chip; and a post electrode formed in a through-hole penetrating through the sealing resin layer in a thickness direction, and having a hemispheric top surface.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 26, 2009
    Applicant: ROHM CO., LTD.
    Inventor: Tatsuya SAKAMOTO
  • Publication number: 20090256177
    Abstract: In an ohmic layer and methods of forming the ohmic layer, a gate structure including the ohmic layer and a metal wiring having the ohmic layer, the ohmic layer is formed using tungsten silicide that includes tungsten and silicon with an atomic ratio within a range of about 1:5 to about 1:15. The tungsten silicide may be obtained in a chamber using a reaction gas including a tungsten source gas and a silicon source gas by a partial pressure ratio within a range of about 1.0:25.0 to about 1.0:160.0. The reaction gas may have a partial pressure within a range of about 2.05 percent to about 30.0 percent of a total internal pressure of the chamber. When the ohmic layer is employed for a conductive structure, such as a gate structure or a metal wiring, the conductive structure may have a reduced resistance.
    Type: Application
    Filed: May 1, 2009
    Publication date: October 15, 2009
    Inventors: Hee-Sook PARK, Gil-Heyun CHOI, Chang-Won LEE, Byung-Hak LEE, Sun-Pil YOUN, Dong-Chan LIM, Jae-Hwa PARK, Jang-Hee LEE, Woong-Hee SOHN
  • Publication number: 20090236743
    Abstract: Programmable resistive RAM cells have a resistance that depends on the size of the contacts. Manufacturing methods and integrated circuits for lowered contact resistance are disclosed that have contacts of reduced size.
    Type: Application
    Filed: June 3, 2009
    Publication date: September 24, 2009
    Applicant: Macronix International Co., Ltd.
    Inventors: Chiahua Ho, Erh-Kun Lai, Kuang Yeu Hsieh
  • Publication number: 20090224406
    Abstract: Methods of forming dense seed layers and structures thereof are provided. Seed layers including a monolayer of molecules having a density of about 0.5 or greater may be manufactured over a metal layer, resulting in a well-defined interface region between the metal layer and a subsequently formed material layer. A seed layer including a monolayer of atoms is formed over the metal layer, the temperature of the workpiece is lowered, and a physisorbed layer is formed over the seed layer, the physisorbed layer including a weakly bound layer of first molecules. A portion of the first molecules in the physisorbed layer are dissociated by irradiating the physisorbed layer with energy, the dissociated atoms of the first molecules being proximate the seed layer. The workpiece is then heated, causing integration of the dissociated atoms of the first molecules of the physisorbed layer into the seed layer and removing the physisorbed layer.
    Type: Application
    Filed: May 15, 2009
    Publication date: September 10, 2009
    Inventor: Stefan Wurm
  • Patent number: 7553754
    Abstract: In an electronic device comprising a first electrodes consisting of a metal oxide and a second electrode consisting of an aluminum alloy film directly contacted and electrically connected to the first electrode, the contact interface between the aluminum alloy film and the first electrode is constructed so that at least a part of alloy components constituting the aluminum alloy film exist as a precipitate or concentrated layer. This construction enables direct contact between the aluminum alloy film and the electrode consisting of a metallic oxide and allows elimination of a barrier metal in such an electronic device, and manufacturing technology therefor.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: June 30, 2009
    Assignee: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroshi Gotoh, Toshihiro Kugimiya, Junichi Nakai, Katsufumi Tomihisa
  • Publication number: 20090146298
    Abstract: A semiconductor device has a chip (101) with gold studs (212) assembled on a tape substrate (102), which has solder balls (103) for attachment to external parts. The tape substrate (about 30 to 70 ?m thick) has on its first surface first copper contact pads (221) covered with a continuous thin nickel layer (222) of about 0.04 to 0.12 ?m thickness. Gold including stud (212) is contacting the nickel. On the second substrate surface are second copper contact pads (231) covered with an alloy layer (about 2 to 3 ?m thick) including gold, copper/tin alloys, and copper/nickel/tin alloys; the alloys are metallurgically attached to the second copper pad and substantially free of unalloyed nickel. A reflow body (103) comprising tin is metallurgically attached to the alloy layer of each second pad.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 11, 2009
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Mutsumi Masumoto
  • Patent number: 7476615
    Abstract: An iodine-doped ruthenium barrier layer for use with copper interconnects within integrated circuits is formed using novel, iodine-containing ruthenium precursors in an ALD or CVD process. Ruthenium precursors that may be used include ruthenium containing carbonyls, arenes, cyclopentadienyls, and certain other ruthenium containing compounds. The ruthenium precursors include iodine to catalyze a subsequent copper metal deposition and to smooth the surface of the ruthenium layer. The iodine concentration across the thickness of the ruthenium barrier layer may be constant or may be graded.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: January 13, 2009
    Assignee: Intel Corporation
    Inventors: Joseph H. Han, Harsono S. Simka, Adrien R. Lavoie, Juan E. Dominguez, John J. Plombon
  • Publication number: 20080217780
    Abstract: The present invention provides a method for producing thin nickel (Ni) monosilicide or NiSi films (having a thickness on the order of about 30 nm or less), as contacts in CMOS devices wherein an amorphous Ni alloy silicide layer is formed during annealing which eliminates (i.e., completely by-passing) the formation of metal-rich silicide layers. By eliminating the formation of the metal-rich silicide layers, the resultant NiSi film formed has improved surface roughness as compared to a NiSi film formed from a metal-rich silicide phase. The method of the present invention also forms Ni monosilicide films without experiencing any dependence of the dopant type concentration within the Si-containing substrate that exists with the prior art NiSi films.
    Type: Application
    Filed: April 17, 2008
    Publication date: September 11, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christophe Detavernier, Simon Gaudet, Christian Lavoie, Conal E. Murray
  • Publication number: 20080217781
    Abstract: The present invention provides a method for producing thin nickel (Ni) monosilicide or NiSi films (having a thickness on the order of about 30 nm or less), as contacts in CMOS devices wherein an amorphous Ni alloy silicide layer is formed during annealing which eliminates (i.e., completely by-passing) the formation of metal-rich silicide layers. By eliminating the formation of the metal-rich silicide layers, the resultant NiSi film formed has improved surface roughness as compared to a NiSi film formed from a metal-rich silicide phase. The method of the present invention also forms Ni monosilicide films without experiencing any dependence of the dopant type concentration within the Si-containing substrate that exists with the prior art NiSi films.
    Type: Application
    Filed: April 17, 2008
    Publication date: September 11, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christophe Detavernier, Simon Gaudet, Christian Lavoie, Conal E. Murray
  • Publication number: 20070228575
    Abstract: A wiring material for TFT-LCD which comprises an Ag alloy containing Ag and Zr as essential components and further one or more metals selected from the group consisting of Au, Ni, Co and Al; and a wiring material which comprises a Cu alloy comprising Au and/or Co and Cu, wherein the alloy has a Cu content of 80 to 99.5 wt % and a sum of a Au (or Cu) on a glass substrate or a silicon wafer by the sputtering method has exhibited satisfactorily low electric resistance and also satisfactorily high adhesion strength to the substrate or the wafer.
    Type: Application
    Filed: June 5, 2007
    Publication date: October 4, 2007
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventor: Kazuyoshi INOUE
  • Patent number: 7271486
    Abstract: A method for providing a low resistance non-agglomerated Ni monosilicide contact that is useful in semiconductor devices. Where the inventive method of fabricating a substantially non-agglomerated Ni alloy monosilicide comprises the steps of: forming a metal alloy layer over a portion of a Si-containing substrate, wherein said metal alloy layer comprises of Ni and one or multiple alloying additive(s), where said alloying additive is Ti, V, Ge, Cr, Zr, Nb, Mo, Hf, Ta, W, Re, Rh, Pd or Pt or mixtures thereof; annealing the metal alloy layer at a temperature to convert a portion of said metal alloy layer into a Ni alloy monosilicide layer; and removing remaining metal alloy layer not converted into Ni alloy monosilicide. The alloying additives are selected for phase stability and to retard agglomeration. The alloying additives most efficient in retarding agglomeration are most efficient in producing silicides with low sheet resistance.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: September 18, 2007
    Assignee: International Business Machines Corporation
    Inventors: Cyril Cabral, Jr., Roy A. Carruthers, Christophe Detavernier, James M. E. Harper, Christian Lavoie
  • Patent number: 6864579
    Abstract: A carrier has a metal area that is essentially composed of copper. A chip has a rear side metallization layer. A buffer layer, essentially composed of nickel and having a thickness of between 5 ?m and 10 ?m, is arranged on the metal area. The chip does not have a chip housing and is arranged on the metal area, which has been provided with the buffer layer, such that only one connecting medium is arranged between the rear side metallization layer of the chip and the buffer layer.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: March 8, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Kurt Gross, Hans Rappl