Patents Examined by Victor V Yevsikov
  • Patent number: 7141503
    Abstract: A method for forming a pre-metallization layer on an underlying micro-structure, and a corresponding micro-structure formed by the method. The micro-structure may be a semiconductor circuit and/or a Micro-Electro-Mechanical Systems (MEMS) device. A first layer of undoped silicate glass is deposited on a micro-structure. Then, a layer of phospho silicate glass is deposited on the first layer of undoped silicate glass. This combination is then densified by applying a temperature to the combination that is sufficient to densify the layer of phospho-silicate glass, while being below the glass flow temperature. After densification, a second layer of undoped silicate glass is deposited on the densified layer of phospho silicate glass. Finally, the upper surface of the second layer of undoped silicate glass is polished using a chemical mechanical polishing process. The result is a dielectric layer of high density and low stress, and that reduces soft errors and defects.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: November 28, 2006
    Assignee: AMI Semiconductor, Inc
    Inventors: John Naughton, Mark M. Nelson
  • Patent number: 7135383
    Abstract: A composite structure is disclosed that includes a support wafer and a layered structure on the support wafer. The layered structure includes at least one layer of a monocrystalline material and at least one layer of a dielectric material. In addition, the layered structure materials and the thickness of each layer are chosen such that the thermal impedance between ambient temperature and 600° K of the composite structure is a value that is no greater than about 1.3 times the thermal impedance of a monocrystalline bulk SiC wafer having the same dimensions as the composite structure. The composite structure provides sufficient heat dissipation properties for manufacturing optical, electronic, or optoelectronic components.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: November 14, 2006
    Assignee: S.O.I.Tec Silicon on Insulator Technologies S.A.
    Inventors: Bruce Faure, Alice Boussagol
  • Patent number: 7135418
    Abstract: Methods of forming conformal films that reduce the amount of metal-containing precursor and/or silicon containing precursor materials required are described. The methods increase the amount of film grown following each dose of metal-containing and/or silicon-containing precursors. The methods may involve introducing multiple doses of the silicon-containing precursor for each dose of the metal-containing precursor and/or re-pressurizing the process chamber during exposure to a dose of the silicon-containing precursor. The methods of the present invention are particularly suitable for use in RVD processes.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: November 14, 2006
    Assignee: Novellus Systems, Inc.
    Inventor: George D. Papasouliotis
  • Patent number: 7132353
    Abstract: A method of forming a sidewall spacer on a gate electrode is described. The method includes generating a first plasma from a silicon containing precursor and oxide precursor, and forming a silicon oxy-nitride layer on the sidewall of the gate electrode. The method also includes generating a second plasma from the silicon containing precursor and a nitrogen precursor, and forming a nitride layer on the silicon oxy-nitride layer. The silicon containing precursor can flow continuously between the generation of the first and the second plasmas. Also, a method of forming a sidewall spacer on the side of a gate electrode on a substrate. The method includes forming an oxy-nitride layer on the sidewall, and forming a nitride layer on the oxy-nitride layer, where the substrate wafer is not exposed to air between the formation of the layers.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: November 7, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Li-Qun Xia, Mei-Yee Shek, Troy Kim, Vladamir Zubkov, Ritwik Bhatia
  • Patent number: 7122458
    Abstract: A method for fabricating a pad redistribution layer. First, at least one bonding pad exposed by a first passivation layer is provided. A diffusion barrier layer and a seed layer are then formed over the first passivation layer and the bonding pad. A patterned mask layer is then formed over the seed layer to expose a portion thereof over the bonding pad, and a metal layer is then formed thereon. A sacrificial layer is then formed over the substrate and the sacrificial layer over the patterned mask layer is removed. The conductive film exposed by the metal layer and the remaining sacrificial layer is then removed, leaving a pad redistribution layer for the bonding pad.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: October 17, 2006
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chia-Jen Cheng, Hui-Mei Yu, Li-Hsin Tseng, Tzu-Han Lin, Ching-Chiang Wu, Chun-Yen Lo, Li-Chuan Huang, Boe Su
  • Patent number: 7122452
    Abstract: A method of producing a semiconductor device on a silicon on insulator (SOI) substrate is disclosed. In one aspect, the method comprises providing a device with a monocrystalline semiconductor layer on an insulating layer; providing a mask on the semiconductor layer to provide first shielded portions and first unshielded portions, amorphizing the first unshielded portions to yield first amorphized portions of the monocrystalline semiconductor layer, implanting a first dopant in the first amorphized portions, applying a first solid phase epitaxial regrowth action to the semiconductor device while using the first shielded portions as monocrystalline seeds.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: October 17, 2006
    Assignees: Interuniversitair Microelektronica Centrum (IMEC) vzw, Koninklijke Philips Electronics
    Inventor: Bartlomiej Jan Pawlak
  • Patent number: 7122465
    Abstract: According to one exemplary embodiment, a method comprises a step of etching a trench in an ILD layer, said trench having sidewalls and a bottom surface. The method further comprises determining a height of the sidewalls of the trench. The method further comprises filling the trench with interconnect metal such the interconnect metal extends above the trench. According to this exemplary embodiment, the method further comprises performing a CMP process to remove a portion of the interconnect metal. In the present invention, the height of the sidewalls of the trench is utilized to control an amount of polishing performed in the CMP process. The remaining portion of interconnect metal in the trench forms an interconnect line, where the thickness of the interconnect line is controlled by utilizing the height of the sidewalls of the trench to control the amount of polishing in the CMP process.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: October 17, 2006
    Assignee: Spansion LLC
    Inventors: Boon-Yong Ang, Cinti Xiaohua Chen, Simon S. Chan, Inkuk Kang
  • Patent number: 7122441
    Abstract: In one embodiment, a plurality of bottom electrodes spaced apart from each other are formed on a lower insulating layer. A high-k dielectric layer and an upper conductive layer are sequentially and conformally formed overlying the bottom electrodes. The high-k dielectric layer and the upper conductive layer cover the bottom electrodes and the lower insulating layer between the bottom electrodes. A hard mask layer is selectively formed on the upper conductive layer to have an overhang over each of the bottom electrodes. Then the upper conductive layer is anisotropically etched using the hard mask layer as an etch mask, thereby forming upper electrodes spaced from each other. Therefore, a photolithography process of forming upper electrodes can be omitted, and damage to the upper electrodes due to etch can be prevented.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: October 17, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Hoon Park, Hyun-Ho Kim
  • Patent number: 7119392
    Abstract: In a storage electrode of a semiconductor device, and a method of forming the same, the storage electrode includes an outer cylinder including a first outer cylindrical portion having a first outer diameter, and a second outer cylindrical portion that is formed on the first outer cylindrical portion and having a second outer diameter, which is less than the first outer diameter, the first and second outer cylindrical portions having substantially equal inner diameters, and an inner cylinder formed on inner surfaces of the outer cylinder.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: October 10, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-Seok Kim, Ki-Hyun Hwang, Hyo-Jung Kim, Hyeon-Deok Lee, Seok-Woo Nam
  • Patent number: 7109065
    Abstract: An improved bumped chip carrier (BCC) package according to the present invention includes a resin-molded lead frame encapsulating an attached semiconductor integrated circuit (IC) and a plurality of interconnecting wire bonds attaching a plurality of contact pads on the IC to an associated plurality of solder-covered external contact terminals that are integrated in the lead frame. By integrally processing the external contact terminals, bonding wires may be affixed using a single wire bonding process. A method for manufacturing the BCC package preferably includes a dual photoresist patterning process accompanied by a dual wet etching process to create a plurality of highly reliable external contact terminals having improved bonding between the contact terminals and the encapsulating resin mold.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: September 19, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In Ku Kang, Sang Ho Ahn
  • Patent number: 7109129
    Abstract: Methods of forming conformal films that reduce the amount of metal-containing precursor and/or silicon containing precursor materials required are described. The methods increase the amount of film grown following each dose of metal-containing and/or silicon-containing precursors. The methods may involve introducing multiple doses of the silicon-containing precursor for each dose of the metal-containing precursor and/or re-pressurizing the process chamber during exposure to a dose of the silicon-containing precursor. The methods of the present invention are particularly suitable for use in RVD processes.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: September 19, 2006
    Assignee: Novellus Systems, Inc.
    Inventor: George D. Papasouliotis
  • Patent number: 7105418
    Abstract: For forming stacked capacitors, an opening is formed through at least one semiconductor material. A lower electrode material is patterned within the opening to form a plurality of lower electrodes within the opening. The stacked capacitors are formed with the lower electrodes within the opening by depositing a capacitor dielectric and an upper electrode within the opening. With such a relatively large opening, a capacitor dielectric of the stacked capacitors is deposited with a large thickness for improving reliability of the stacked capacitors.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: September 12, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Heung-Jin Joo
  • Patent number: 7105429
    Abstract: A method inhibits metal silicide encroachment in channel regions in a transistor that uses metal silicide as an electrical contact to its terminals. A metal layer is deposited overlying the transistor. A first anneal that is a low temperature anneal forms metal silicide regions to source, gate and drain terminals of the transistor. The low temperature inhibits lateral encroachment. Unsilicided portions of the metal are removed and followed by an ion implant of an element, such as nitrogen, that diffuses into the metal silicide regions. A second anneal at a higher temperature than the first anneal is completed wherein the implanted nitrogen ions prevent lateral encroachment of metal silicide.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: September 12, 2006
    Assignee: Freescale Semiconductor, Inc.
    Inventor: Dharmesh Jawarani
  • Patent number: 7101727
    Abstract: A pixel cell is formed by locating a first passivation layer over the final layer of metal lines. Subsequently, the uneven, non-uniform passivation layer is subjected to a planarization process such as chemical mechanical polishing, mechanical abrasion, or etching. A spin-on-glass layer may be deposited over the non-uniform passivation layer prior to planarization. Once a uniform, flat first passivation layer is achieved over the final metal, a second passivation layer, a color filter array, or a lens forming layer with uniform thickness is formed over the first passivation layer. The passivation layers can be oxide, nitride, a combination of oxide and nitride, or other suitable materials. The color filter array layer may also undergo a planarization process prior to formation of the lens forming layer. The present invention is also applicable to other devices.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: September 5, 2006
    Assignee: Micron Technology, Inc.
    Inventor: Howard E. Rhodes
  • Patent number: 7091098
    Abstract: A semiconductor device including a gate stack located over a substrate and a spacer located over the substrate and adjacent the gate stack. The spacer includes a plurality of layers, wherein at least one of the plurality of layers is a batch layer and at least one of the plurality of layers is a non-batch layer.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: August 15, 2006
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yen Ming Chen, Lin Jun Wu
  • Patent number: 7087955
    Abstract: A semiconductor device has a nonvolatile memory employing a split-gate type memory cell structure, using a nitride film as a charge storage layer. An n-type semiconductor region is formed in a main surface of a semiconductor substrate, and then, a memory gate electrode of a memory cell of a split gate type and a charge storage layer are formed over the semiconductor region. Subsequently, side walls are formed on side surfaces of the memory gate electrode, and a photoresist pattern is formed over the main surface of the semiconductor substrate. The photoresist pattern serves as an etching mask, and a part of the main surface of the semiconductor substrate is removed by etching to form a dent. In the region of the dent, the n-type semiconductor region is removed. Then, a p-type semiconductor region for forming a channel of an nMIS transistor for selecting a memory cell is formed.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: August 8, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Yoshiyuki Kawashima, Fumitoshi Ito, Takeshi Sakai, Yasushi Ishii, Yasuhiro Kanamaru, Takashi Hashimoto, Makoto Mizuno, Kousuke Okuyama
  • Patent number: 7087471
    Abstract: In a FinFET integrated circuit, the fins are formed with a reduced body thickness in the body area and then thickened in the S/D area outside the body to improve conductivity. The thickening is performed with epitaxial deposition while the lower portion of the gates are covered by a gate cover layer to prevent thickening of the gates at the fin level, which may short the gate to the S/D.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: August 8, 2006
    Assignee: International Business Machines Corporation
    Inventor: Jochen C. Beintner
  • Patent number: 7067410
    Abstract: The present invention provides a technique for forming a metal silicide, such as a cobalt disilicide, even at extremely scaled device dimensions without unduly degrading the film integrity of the metal silicide. To this end, an ion implantation may be performed, advantageously with silicon, prior to a final anneal cycle, thereby correspondingly modifying the grain structure of the precursor of the metal silicide.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: June 27, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Karsten Wieczorek, Thorsten Kammler, Manfred Horstmann
  • Patent number: 7067424
    Abstract: The present invention provides for a method of providing copper metallization on a semiconductor body, including the step of depositing copper in a nitrogen-containing atmosphere so as to form a nitrogen-containing copper seed layer and forming the copper metallization on the seed layer, and also including the step of heating the seed layer so as to release the nitrogen to form part of a barrier layer separating the seed layer from the semiconductor body.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: June 27, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Robertus Adrianus Maria Wolters, Anouk Maria Van Graven Claassen
  • Patent number: 7060562
    Abstract: A method for fabricating gate electrodes (7) in a field plate trench transistor (1) having a cell array with a plurality of trenches (3) and a plurality of mesa regions (8) arranged between the trenches comprises the following steps: application of a gate electrode layer (7) to the cell array in such a way that the gate electrode layer (7) has depressions within or above the trenches (3), application of a mask layer (10) to the cell array, etching-back of the mask layer (10) in such a way that mask layer residues (10) remain only within the depressions of the gate electrode layer (7), and etching-back of the gate electrode layer (7) using the mask layer residues (10) as an etching mask in such a way that gate electrode layer residues (7) remain only within/above the trenches (3).
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: June 13, 2006
    Assignee: Infineon Technologies AG
    Inventors: Ralf Henninger, Franz Hirler, Uli Hiller, Jan Ropohl