Of Capacitor (epo) Patents (Class 257/E21.008)
  • Patent number: 8115276
    Abstract: An integrated circuit system that includes: providing a substrate including front-end-of-line circuitry; forming a first metallization layer over the substrate and electrically connected to the substrate; forming a viabar or a via group over the first metallization layer; and forming a second metallization layer over the first metallization layer and electrically connected to the first metallization layer through either the viabar or the via group.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: February 14, 2012
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Shaoqing Zhang, Fan Zhang, Shao-fu Sanford Chu, Bei Chao Zhang
  • Patent number: 8114752
    Abstract: A structure of a capacitor set is described, including at least two capacitors that are disposed at the same position on a substrate and include a first capacitor and a second capacitor. The first capacitor includes multiple first capacitor units electrically connected with each other in parallel. The second capacitor includes multiple second capacitor units electrically connected with each other in parallel. The first and the second capacitor units are arranged spatially intermixing with each other to form an array.
    Type: Grant
    Filed: February 6, 2010
    Date of Patent: February 14, 2012
    Assignee: United Microelectronics Corp.
    Inventors: Victor Chiang Liang, Chien-Kuo Yang, Hua-Chou Tseng, Chun-Yao Ko, Cheng-Wen Fan, Yu-Ho Chiang, Chih-Yuh Tzeng
  • Patent number: 8114731
    Abstract: The present invention provides an integrated high voltage capacitor, a method of manufacture therefore, and an integrated circuit chip including the same. The integrated high voltage capacitor, among other features, includes a first capacitor plate (120) located over or in a semiconductor substrate (105), and an insulator (130) located over the first capacitor plate (120), at least a portion of the insulator (130) comprising an interlevel dielectric layer (135, 138, 143, or 148). The integrated high voltage capacitor further includes capacitance uniformity structures (910) located at least partially within the insulator (130) and a second capacitor plate (160) located over the insulator (130).
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: February 14, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: David L. Larkin, Lily X. Springer, Makoto Takemura, Ashish V. Gokhale, Dhaval A. Saraiya
  • Publication number: 20120034752
    Abstract: In a method of forming a gate structure, a gate pattern including a gate insulation layer pattern and a gate electrode sequentially stacked on a substrate is formed. The gate electrode includes a metal. A first plasma process is performed on the gate pattern using a reaction gas to reduce an oxidized edge portion of the gate electrode. The reaction gas includes nitrogen. A spacer is formed on a sidewall of the gate pattern. A threshold voltage is adjusted by reducing the oxidized edge portion of the gate electrode. Therefore, a semiconductor device including the gate pattern has excellent electrical characteristics.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 9, 2012
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Weon-Hong KIM, Hyung-Suk Jung, Ha-Jin Lim
  • Publication number: 20120034751
    Abstract: A method of manufacturing a semiconductor device includes forming a flash memory cell in a first region, forming a first electrode of a capacitor in a second region, forming a first silicon oxide film, a silicon nitride film, and a second silicon oxide film in this order as a second insulating film, removing the silicon nitride film and the second silicon oxide film in a partial region of the first electrode, wet-etching a first insulating film and the second insulating film in the third region, forming a second electrode of the capacitor, and etching and removing the first silicon oxide film in the partial region.
    Type: Application
    Filed: May 12, 2011
    Publication date: February 9, 2012
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Junichi Ariyoshi, Taiji Ema, Toru Anezaki
  • Publication number: 20120032299
    Abstract: A method of manufacturing a semiconductor device includes forming an insulating film over a semiconductor substrate, forming a capacitor including a lower electrode, a capacitor dielectric film including a ferroelectric material, and an upper electrode over the insulating film, forming a first protective insulating film over a side surface and upper surface of the capacitor by a sputtering method, and forming a second protective insulating film over the first protective insulating film by an atomic layer deposition method.
    Type: Application
    Filed: May 16, 2011
    Publication date: February 9, 2012
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventor: Wensheng Wang
  • Publication number: 20120034753
    Abstract: A method of forming a plurality of capacitors includes an insulative material received over a capacitor array area and a circuitry area. The array area comprises a plurality of capacitor electrode openings within the insulative material received over individual capacitor storage node locations. The intervening area comprises a trench. Conductive metal nitride-comprising material is formed within the openings and against a sidewall portion of the trench to less than completely fill the trench. Inner sidewalls of the conductive material within the trench are annealed in a nitrogen-comprising atmosphere. The insulative material within the array area is etched with a liquid etching solution effective to expose outer sidewall portions of the conductive material within the array area. The conductive material within the array area is incorporated into a plurality of capacitors.
    Type: Application
    Filed: October 10, 2011
    Publication date: February 9, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Vishwanath Bhat, Kevin R. Shea
  • Publication number: 20120032242
    Abstract: A semiconductor device includes: a diffusion layer configuring a memory cell, and a diffusion layer configuring a dummy cell formed over the semiconductor substrate, interlayer insulating films formed over the semiconductor substrate, a cylinder layer insulating film including at least one concavity overlapping a diffusion layer and formed over an interlayer insulating film, a contact plug formed over one diffusion layer, a contact plug formed over another diffusion layer, a lower electrode formed over the side surfaces and bottom surface of the concavity and coupled to the diffusion layer by way of the contact plug, a dielectric material film formed over the lower electrode, over the cylinder layer insulating film and over the contact plug, and coupling by way of the contact plug to the diffusion layer, and an upper electrode formed over the inductive film material.
    Type: Application
    Filed: July 8, 2011
    Publication date: February 9, 2012
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Yasuyuki AOKI
  • Patent number: 8110411
    Abstract: The present invention provides a semiconductor device which is characterized as follows. The semiconductor device includes: an interlayer insulating film formed above a semiconductor substrate and provided with a hole above an impurity diffusion region; a conductive plug formed in the hole and electrically connected to the impurity diffusion region; a conductive oxygen barrier film formed on the conductive plug and the interlayer insulating film around the conductive plug; a conductive anti-diffusion film formed on the conductive oxygen barrier film; and a capacitor that has a lower electrode which is formed on the conductive anti-diffusion film and which exposes platinum or palladium on the upper surface, a capacitor dielectric film made of a ferroelectric material, and an upper electrode. The conductive anti-diffusion film is made of a non-oxide conductive material for preventing the diffusion of the constituent element of the capacitor dielectric film.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 7, 2012
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Wensheng Wang
  • Patent number: 8110477
    Abstract: A semiconductor device is made by providing an integrated passive device (IPD). Through-silicon vias (TSVs) are formed in the IPD. A capacitor is formed over a surface of the IPD by depositing a first metal layer over the IPD, depositing a resistive layer over the first metal layer, depositing a dielectric layer over the first metal layer, and depositing a second metal layer over the resistive and dielectric layers. The first metal layer and the resistive layer are electrically connected to form a resistor and the first metal layer forms a first inductor. A wafer supporter is mounted over the IPD using an adhesive material and a third metal layer is deposited over the IPD. The third metal layer forms a second inductor that is electrically connected to the capacitor and the resistor by the TSVs of the IPD. An interconnect structure is connected to the IPD.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: February 7, 2012
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Jianmin Fang, Kang Chen, Haijing Cao
  • Patent number: 8110862
    Abstract: A structure and a method for fabrication of the structure use a capacitor trench for a trench capacitor and a resistor trench for a trench resistor. The structure is typically a semiconductor structure. In a first instance, the capacitor trench has a linewidth dimension narrower than the resistor trench. The trench linewidth difference provides an efficient method for fabricating the trench capacitor and the trench resistor. In a second instance, the trench resistor comprises a conductor material at a periphery of the resistor trench and a resistor material at a central portion of the resistor trench.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: February 7, 2012
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Robert M. Rassel
  • Publication number: 20120028433
    Abstract: A dielectric layer is formed in the surface of an anode body which is composed of a sintered body, a semiconductor layer composed of an electrically-conductive polymer is formed on the dielectric layer, and then an electric conductor layer is formed on the semiconductor layer with an electrically-conductive paste which contains a dispersant to obtain a solid electrolytic capacitor element: The electric conductor layer of the solid electrolytic capacitor element is electrically connected to a cathode terminal using the electrically-conductive paste which contains a dispersant, and the anode body is electrically connected to an anode terminal through a lead wire by welding. The solid electrolytic capacitor element connected to the terminals is immersed in a solvent, and then the solid electrolytic capacitor element is encapsulated with a resin to obtain a solid electrolytic capacitor.
    Type: Application
    Filed: March 2, 2010
    Publication date: February 2, 2012
    Applicant: SHOWA DENKO K.K.
    Inventor: Kazumi Naito
  • Publication number: 20120025288
    Abstract: In one exemplary embodiment, a semiconductor structure including: a silicon-on-insulator substrate having of a top silicon layer overlying an insulation layer, where the insulation layer overlies a bottom silicon layer; a capacitor disposed at least partially in the insulation layer; a device disposed at least partially on the top silicon layer, where the device is coupled to a doped portion of the top silicon layer; a backside strap of first epitaxially-deposited material, where at least a first portion of the backside strap underlies the doped portion of the top silicon layer, where the backside strap is coupled to the doped portion of the top silicon layer at a first end of the backside strap and to the capacitor at a second end of the backside strap; and second epitaxially-deposited material that at least partially overlies the doped portion of the top silicon layer, where the second epitaxially-deposited material further at least partially overlies the first portion of the backside strap.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Inventors: Bruce B. Doris, Kangguo Cheng, Ali Khakifirooz, Pranita Kulkarni, Ghavam G. Shahidi
  • Publication number: 20120025347
    Abstract: An embedded memory system includes an array of dynamic random access memory (DRAM) cells, on the same substrate as an array of logic transistors. Each DRAM cell includes an access transistor and a capacitor structure. The capacitor structure is fabricated by forming a metal-insulator-metal capacitor in a dielectric layer.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: MoSys, Inc.
    Inventor: Jeong Y. Choi
  • Publication number: 20120028374
    Abstract: A ferroelectric capacitor provided with a ferroelectric film (10a) is formed above a semiconductor substrate, and thereafter a wiring (17) directly connected to electrodes (9a, 11a) of a ferroelectric capacitor is formed. Then, a silicon oxide film (18) covering the wiring (17) is formed. As the silicon oxide film (18), a film which has processability higher than that of an aluminum oxide film is formed. Besides, a degree of damage that occurs in the ferroelectric capacitor when the insulating film is formed is equal to or less than that when an aluminum oxide film is formed.
    Type: Application
    Filed: October 12, 2011
    Publication date: February 2, 2012
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Hideaki Kikuchi, Kouichi Nagai
  • Patent number: 8105896
    Abstract: A method of forming a capacitor includes forming a conductive first capacitor electrode material comprising TiN over a substrate. TiN of the TiN-comprising material is oxidized effective to form conductive TiOxNy having resistivity no greater than 1 ohm·cm over the TiN-comprising material where x is greater than 0 and y is from 0 to 1.4. A capacitor dielectric is formed over the conductive TiOxNy. Conductive second capacitor electrode material is formed over the capacitor dielectric. Other aspects and implementations are contemplated, including capacitors independent of method of fabrication.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: January 31, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Vishwanath Bhat, Noel Rocklein, F. Daniel Gealy
  • Patent number: 8105913
    Abstract: Disclosed herein is a method of fabricating a capacitor of a semiconductor device that includes sequentially forming an interlayer insulating film defining a contact plug, a lower electrode oxide film, and a hard mask film over a semiconductor substrate; etching the hard mask film with a mask comprising a dummy pattern and a cell pattern to form a hard mask pattern wherein a first trench is formed in a dummy pattern region and a second trench is formed in a cell pattern region; forming a capping film that buries the first trench; and etching the lower electrode oxide film with the capping film and the hard mask pattern as a mask to form a lower electrode trench that exposes the contact plug.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: January 31, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Yong Soon Jung
  • Publication number: 20120021587
    Abstract: A method of forming (and apparatus for forming) a metal oxide layer, preferably a dielectric layer, on a substrate, particularly a semiconductor substrate or substrate assembly, using a vapor deposition process and ozone with one or more metal organo-amine precursor compounds.
    Type: Application
    Filed: September 30, 2011
    Publication date: January 26, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Brian A. Vaartstra, Timothy A. Quick
  • Publication number: 20120018844
    Abstract: Solid-state thin-film capacitors are provided. Aspects of the solid-state thin-film capacitors include a first electrode layer of a transition metal, a dielectric layer of an oxide of the transition metal, and a second electrode layer of a metal oxide. Also provided are methods of making the solid-state thin-film capacitors, as well as devices that include the same. The capacitor may have one or more cathodic arc produced structures, i.e., structures produced using a cathodic arc deposition process. The structures may be stress-free metallic structures, porous layers and layers displaying crenulations. Aspects of the invention further include methods of producing capacitive structures using chemical vapor deposition and/or by sputter deposition.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 26, 2012
    Inventor: Hooman Hafezi
  • Patent number: 8101494
    Abstract: A method of making a semiconductor structure includes forming at least a first trench and a second trench having different depths in a substrate, forming a capacitor in the first trench, and forming a via in the second trench. A semiconductor structure includes a capacitor arranged in a first trench formed in a substrate and a via arranged in a second trench formed in the substrate. The first and second trenches have different depths in the substrate.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: January 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: David S. Collins, Kai D. Feng, Zhong-Xiang He, Peter J. Lindgren, Robert M. Rassel
  • Patent number: 8101495
    Abstract: Structures and methods of forming an ideal MIM capacitor are disclosed. The single capacitor includes a first and a second metal structure overlying a substrate, a first dielectric material disposed between a first portion of the first metal structure and a first portion of the second metal structure. A second dielectric material is disposed between a second portion of the first metal structure and a second portion of the second metal structure. No first dielectric material is disposed between the second portion of the first and second metal structures, and no second dielectric material is disposed between the first portion of the first and second metal structures. The first and second dielectric material layers include materials with opposite coefficient of capacitance.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 24, 2012
    Assignee: Infineon Technologies AG
    Inventors: Philipp Riess, Armin Fischer
  • Publication number: 20120012971
    Abstract: A structure and method is provided for fabricating isolated capacitors. The method includes simultaneously forming a plurality of deep trenches and one or more isolation trenches surrounding a group or array of the plurality of deep trenches through a SOI and doped poly layer, to an underlying insulator layer. The method further includes lining the plurality of deep trenches and one or more isolation trenches with an insulator material. The method further includes filling the plurality of deep trenches and one or more isolation trenches with a conductive material on the insulator material. The deep trenches form deep trench capacitors and the one or more isolation trenches form one or more isolation plates that isolate at least one group or array of the deep trench capacitors from another group or array of the deep trench capacitors.
    Type: Application
    Filed: July 19, 2010
    Publication date: January 19, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Oh-Jung KWON, Junedong LEE, Paul C. PARRIES, Dominic J. SCHEPIS
  • Publication number: 20120012980
    Abstract: A semiconductor capacitor and its method of fabrication are disclosed. A non-linear nitride layer is used to increase the surface area of a capacitor plate, resulting in increased capacitance without increase in chip area used for the capacitor.
    Type: Application
    Filed: June 21, 2011
    Publication date: January 19, 2012
    Applicant: International Business Machines Corporation
    Inventors: DAVID VACLAV HORAK, Shom Ponoth, Hosadurga Shobha, Chih-Chao Yang
  • Publication number: 20120012970
    Abstract: A semiconductor device includes an isolated p-type well, wherein the isolated p-type well is a first electrode of a capacitor device; a capacitor dielectric on the isolated p-type well; a p-type polysilicon electrode over the capacitor dielectric, wherein the p-type polysilicon electrode is a second electrode of the capacitor device; a first p-type contact region in the isolated p-type well, laterally extending from a first sidewall of the p-type polysilicon electrode; a second p-type contact region in the isolated p-type well, laterally extending from a second sidewall of the p-type polysilicon electrode, opposite the first sidewall of the p-type polysilicon electrode, wherein a portion of the isolated p-type well between the first and second p-type contact regions is under the p-type polysilicon electrode and the capacitor dielectric; and an n-type isolation region surrounding the isolated p-type well. This device may be conveniently coupled to a fringe capacitor.
    Type: Application
    Filed: July 14, 2010
    Publication date: January 19, 2012
    Inventors: HONGZHONG XU, ZHIHONG ZHANG, JIANG-KAI ZUO
  • Publication number: 20120012914
    Abstract: The invention includes methods of utilizing compositions containing iridium and tantalum in semiconductor constructions, and includes semiconductor constructions comprising compositions containing iridium and tantalum. The compositions containing iridium and tantalum can be utilized as barrier materials, and in some aspects can be utilized as barriers to copper diffusion.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 19, 2012
    Applicant: Micron Technology Inc.
    Inventor: Yongjun Jeff Hu
  • Publication number: 20120015495
    Abstract: A method of manufacturing a semiconductor device includes forming a first insulating film above a semiconductor substrate, forming a wiring to be buried in the first insulating film, forming a protruding portion in an upper surface of the wiring, forming a second insulating film above the first insulating film and the wiring including the protruding portion, planarizing a surface of the second insulating film, forming a third insulating film on the second insulating film whose surface is planarized, forming a lower electrode on the third insulating film, forming a capacitor insulating film on the lower electrode, and forming an upper electrode on the capacitor insulating film.
    Type: Application
    Filed: September 24, 2011
    Publication date: January 19, 2012
    Applicant: RENESAS ELECTRONIC CORPORATION
    Inventors: Masayuki Furumiya, Takeshi Toda
  • Publication number: 20120012979
    Abstract: An improved semiconductor capacitor and method of fabrication is disclosed. A nitride stack, comprising alternating sublayers of slow-etch and fast-etch nitride is deposited on a substrate. The nitride stack is etched via an anisotropic etch technique such as reactive ion etch. A wet etch then etches the nitride stack, forming a corrugated shape. The corrugated shape increases surface area, and hence increases the capacitance of the capacitor.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 19, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David Vaclav Horak, Shom Ponoth, Hosadurga Shobha, Chih-Chao Yang
  • Patent number: 8097521
    Abstract: An electronic device (ICD) comprises an integrated circuit (AIC) and a capacitance element (PIC). The integrated circuit (AIC) is provided with a plurality of circuit contact pairs (CI). The capacitance element (PIC) is provided with a plurality of capacitance contact pairs (CC). A capacitance is present between each of at least part of the capacitance contact pairs (CC). The plurality of capacitance contact pairs (CC) faces the plurality of circuit contact pairs (CI). At least a part of the capacitance contact pairs (CC) is electrically coupled in a pair-by-pair manner to at least a part of the circuit contact pairs (CI).
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: January 17, 2012
    Assignee: NXP B.V.
    Inventor: Joop Van Lammeren
  • Publication number: 20120007214
    Abstract: A method of manufacture of an integrated circuit system includes: providing a substrate including front-end-of-line circuitry; forming a first group of metal layers including a first finger and a second finger over the substrate utilizing a first design rule, the first group of metal layers being formed without a finger via; forming a second group of metal layers including a first finger, a second finger, and a finger via over the first group of metal layers utilizing a second design rule that is larger than the first design rule; and interconnecting the first group of metal layers, including interconnecting a first cluster adjacent to a second cluster, to form a capacitor.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 12, 2012
    Applicant: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Shao-fu Sanford Chu, Shaoqiang Zhang, Johnny Kok Wai Chew
  • Patent number: 8093125
    Abstract: Example embodiment is provided to a method for manufacturing a semiconductor device, including forming a hard mask layer on a buried bit line and forming a storage node contact hole by using the selectivity between an interlayer insulating layer and the hard mask layer, thereby forming a contact hole using a mask of a line pattern instead of a hole pattern. Accordingly, a mask for the contact hole can be easily fabricated and the contact area can be maximized, thereby reducing the contact resistance.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: January 10, 2012
    Assignee: Hynix Semiconductor, Inc.
    Inventor: Ji Hye Kim
  • Publication number: 20120001298
    Abstract: A thin film capacitor is characterized by forming a lower electrode, coating a composition onto the lower electrode without applying an annealing process having a temperature of greater than 300° C., drying at a predetermined temperature within a range from ambient temperature to 500° C., and calcining at a predetermined temperature within a range of 500 to 800° C. and higher than a drying temperature. The process from coating to calcining is performed the process from coating to calcining once or at least twice, or the process from coating to drying is performed at least twice, and then calcining is performed once. The thickness of the dielectric thin film formed after the first calcining is 20 to 600 nm. The ratio of the thickness of the lower electrode and the thickness of the dielectric thin film formed after the initial calcining step (thickness of lower electrode/thickness of the dielectric thin film) is preferably in the range 0.10 to 15.0.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 5, 2012
    Applicants: STMicroelectronics(Tours) SAS, MITSUBISHI MATERIALS CORPORATION
    Inventors: Hideaki Sakurai, Toshiaki Watanabe, Nobuyuki Soyama, Guillaume Guegan
  • Patent number: 8088668
    Abstract: A method for manufacturing capacitor lower electrodes of a semiconductor memory firstly forms a first stacked structure over a semiconductor substrate which has a plurality of conductive plugs. Then a second stacked structure is formed on the first stacked structure; furthermore, a plurality of trenches extending from a top surface of the second stacked structure to a bottom surface of the first stacked structure are formed and expose the conducting plugs; finally, conductive metal materials and solid conducting cylindrical structures are deposited in the trenches in turn, and the conductive metal materials contact with the conductive plugs and the conducting cylindrical structures. Each conducting cylindrical structure is a capacitor lower electrode. Accordingly, the present invention can increase the supporting stress of the capacitor lower electrodes and further reduce the difficulty in disposing of capacitor upper electrodes and capacitor dielectric layers outside the capacitor lower electrodes.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: January 3, 2012
    Assignee: Inotera Memories, Inc.
    Inventors: Shin Bin Huang, Chung-Yi Chang, Jung-Hung Wang
  • Patent number: 8088658
    Abstract: Methods for fabricating a capacitor are provided. In the methods, a dielectric may be formed on a metal (e.g. nickel) substrate, and a copper electrode is formed thereon, followed by the thinning of the metal substrate from its non-coated face, and subsequently forming a copper electrode on the thinned, non-coated face of the substrate.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: January 3, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Juan Carlos Figueroa, Damien Francis Reardon
  • Patent number: 8088659
    Abstract: High dielectric films of mixed transition metal oxides of titanium and tungsten, or titanium and tantalum, are formed by sequential chemical vapor deposition (CVD) of the respective nitrides and annealing in the presence of oxygen to densify and oxidize the nitrides. The resulting film is useful as a capacitative cell and resists oxygen diffusion to the underlying material, has high capacitance and low current leakage.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: January 3, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Jiong-Ping Lu, Ming-Jang Hwang
  • Patent number: 8084841
    Abstract: The present invention describes systems and methods for providing high-density capacitors. An exemplary embodiment of the present invention provides a high-density capacitor system comprising a substrate and a porous conductive layer formed on the substrate, wherein the porous conductive layer is formed in accordance with a predetermined pattern. Furthermore, the high-density capacitor system includes a dielectric material formed on the porous conductive layer and a second conductive layer formed on the dielectric material. Additionally, the high-density capacitor system includes a plurality of conductive pads configured in communication with the second conductive layer.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: December 27, 2011
    Assignees: Georgia Tech Research, Medtronic, Inc.
    Inventors: MarkondeyaRaj Pulugurtha, Andreas Fenner, Anna Malin, Dasharatham Janagama Goud, Rao Tummala
  • Publication number: 20110309892
    Abstract: A semiconductor die has an RF coupler and balun integrated on a common substrate. The RF coupler includes first and second conductive traces formed in close proximity. The RF coupler further includes a resistor. The balun includes a primary coil and two secondary coils. A first capacitor is coupled between first and second terminals of the semiconductor die. A second capacitor is coupled between a third terminal of the semiconductor die and a ground terminal. A third capacitor is coupled between a fourth terminal of the semiconductor die and the ground terminal. A fourth capacitor is coupled between the high side and low side of the primary coil. The integration of the RF coupler and balun on the common substrate offers flexible coupling strength and signal directivity, and further improves electrical performance due to short lead lengths, reduces form factor, and increases manufacturing yield.
    Type: Application
    Filed: August 26, 2011
    Publication date: December 22, 2011
    Applicant: STATS CHIPPAC, LTD.
    Inventors: Robert C. Frye, Kai Liu
  • Publication number: 20110312148
    Abstract: Methods for depositing ruthenium-containing films are provided herein. In some embodiments, a method of depositing a ruthenium-containing film on a substrate may include depositing a ruthenium-containing film on a substrate using a ruthenium-containing precursor, the deposited ruthenium-containing film having carbon incorporated therein; and exposing the deposited ruthenium-containing film to an oxygen-containing gas to remove at least some of the carbon from the deposited ruthenium-containing film. In some embodiments, the oxygen-containing gas exposed ruthenium-containing film may be annealed in a hydrogen-containing gas to remove at least some oxygen from the ruthenium-containing film. In some embodiments, the deposition, exposure, and annealing may be repeated to deposit the ruthenium-containing film to a desired thickness.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 22, 2011
    Applicant: APPLIED MATERIALS, INC.
    Inventors: HOON KIM, SANG-HYEOB LEE, SANG HO YU, WEI TI LEE, SESHADRI GANGULI, HYOUNG-CHAN HA
  • Publication number: 20110309474
    Abstract: A trench and method of fabrication is disclosed. The trench shape is cylindrosymmetric, and is created by forming a dopant profile that is monotonically increasing in dopant concentration level as a function of depth into the substrate. A dopant sensitive etch is then performed, resulting in a trench shape providing increased surface area, yet having relatively smooth trench walls.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 22, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Chengwen Pei, Xi Li, Geng Wang
  • Publication number: 20110304017
    Abstract: A lower electrode includes a metal-containing oxide layer having a thickness of 2 nm or less on the surface layer. A metal-containing oxide layer is formed by oxidizing the surface of the lower electrode. A dielectric film includes a first phase appearing at room temperature in the bulk state and a second phase appearing at a higher temperature than that in the first phase in the bulk state. The second phase has a higher relative permittivity than that of the first phase.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Takayuki IWAKI, Takamasa ITOU, Kana SHIMIZU
  • Publication number: 20110298089
    Abstract: An improved trench capacitor and method of fabrication are disclosed. The trench capacitor utilizes a rare-earth oxide layer to reduce depletion effects, thereby improving performance of the trench capacitor.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 8, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Rishikesh Krishnan, Michael P. Chudzik, Siddarth A. Krishnan
  • Publication number: 20110298090
    Abstract: Capacitors, systems, and methods are disclosed. In one embodiment, the capacitor includes a first electrode. The capacitor may also include a first insulator layer having a positive VCC adjacent to the first electrode. The capacitor may further include a second insulator layer having a negative VCC adjacent to the first insulator layer. The capacitor may also include a third insulator layer having a positive VCC adjacent to the second insulator layer. The capacitor may also include a second electrode adjacent to the third insulator layer.
    Type: Application
    Filed: June 4, 2010
    Publication date: December 8, 2011
    Inventors: Chanro Park, Sangduk Park, Paul D. Kirsch, David Gilmer, Chang Yong Kang, Joel Barnett
  • Publication number: 20110298085
    Abstract: A semiconductor chip includes a substrate including a surface, an active transistor region and a substrate contact region formed on the substrate, a shallow trench isolation (STI) area formed in the surface and disposed at least partially between the active transistor region and the substrate contact region, and at least one capacitor at least partially buried in the STI area.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 8, 2011
    Applicant: Infineon Technologies AG
    Inventor: Hartmud Terletzki
  • Patent number: 8071439
    Abstract: A method for manufacturing a semiconductor device includes forming a first interlayer insulating film over a semiconductor substrate; forming a first opening in the first interlayer insulating film; forming a second interlayer insulating film on the first interlayer insulating film such that the first opening is not filled; and forming a second opening in the second interlayer insulating film such that the second opening is connected to the first opening.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: December 6, 2011
    Assignee: Elpida Memory, Inc.
    Inventor: Toshiyuki Hirota
  • Patent number: 8071458
    Abstract: The invention discloses a method for forming an interfacial passivation layer on the Ge semiconductor. The supercritical CO2 fluids is used to form an interfacial passivation layer between Ge channel and gate insulator layer, and improve the dielectric characteristics of gate insulator after high-temperature thermal annealing process.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: December 6, 2011
    Assignee: National Chiao Tung University
    Inventors: Po-Tsun Liu, Chen-Shuo Huang, Yi-Ling Huang, Szu-Lin Cheng, Simon M. Sze, Yoshio Nishi
  • Publication number: 20110291166
    Abstract: An integrated circuit having finFETs and a metal-insulator-metal (MIM) fin capacitor and methods of manufacture are disclosed. A method includes forming a first finFET comprising a first dielectric and a first conductor; forming a second finFET comprising a second dielectric and a second conductor; and forming a fin capacitor comprising the first conductor, the second dielectric, and the second conductor.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 1, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, JR., Kangguo Cheng, Toshiharu Furukawa, Chengwen Pei
  • Publication number: 20110294277
    Abstract: The present invention provides methods for the manufacture of a trench structure in a multilayer wafer that comprises a substrate, an oxide layer on the substrate and a semiconductor layer on the oxide layer. These methods include the steps of forming a trench through the semiconductor layer and the oxide layer and extending into the substrate, and of performing an anneal treatment of the formed trench such that at the inner surface of the trench some material of the semiconductor layer flows at least over a portion of the part of the oxide layer exposed at the inner surface of the trench. Substrates manufactured according to this invention are advantageous for fabricating various semiconductor devices, e.g., MOSFETs, trench capacitors, and the like.
    Type: Application
    Filed: April 25, 2011
    Publication date: December 1, 2011
    Inventors: Konstantin Bourdelle, Carlos Mazure
  • Publication number: 20110294275
    Abstract: A method for fabricating a semiconductor device includes forming an isolation layer over a substrate, forming a plurality of open regions exposing the substrate by selectively etching the isolation layer, performing a surface treatment over the isolation layer, expanding the open regions by removing the surface-treated portion of the isolation layer, and forming a conductive layer in the expanded open regions.
    Type: Application
    Filed: July 8, 2010
    Publication date: December 1, 2011
    Inventor: Sang-Oh Lee
  • Publication number: 20110291235
    Abstract: The present invention discloses a copper interconnection structure with MIM capacitor and a manufacturing method thereof. The method firstly makes a copper conductive pattern in a copper interconnection structure and a copper through hole bolt connected with the copper conductive pattern; etch away an insulation layer around the copper through hole bolt and deposit a etch stop layer, so as to expose the top and side surface of the copper through hole bolt and part of the top surface of the copper conductive pattern; deposit a dielectric layer on the obtained structure and fill a protection material in the recession area of the obtained structure; etch a trench for receiving other copper conductive patterns; remove the protection material; plate copper in the recession area, and plate copper in the trench, so as to obtain a copper interconnection structure with MIM capacitor.
    Type: Application
    Filed: July 14, 2010
    Publication date: December 1, 2011
    Applicant: SHANGHAI INSTITUTE OF MICROSYSTEM AND INFORMATION TECHNOLOGY, CHINESE ACADEMY
    Inventors: Deyuan Xiao, Xiaolu Huang
  • Publication number: 20110291240
    Abstract: To provide a power storage device with improved cycle characteristics and a method for manufacturing the power storage device, a power storage device is provided with a conductive layer in contact with a surface of an active material layer including a silicon layer after an oxide film, such as a natural oxide film, which is formed on the surface of the active material layer is removed. The conductive layer is thus provided in contact with the surface of the active material layer including a silicon layer, whereby the conductivity of the electrode surface of the power storage device is improved; therefore, cycle characteristics of the power storage device can be improved.
    Type: Application
    Filed: May 27, 2011
    Publication date: December 1, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Shunpei YAMAZAKI
  • Patent number: 8067817
    Abstract: A semiconductor device includes a ferroelectric capacitor formed over a semiconductor substrate, wherein the ferroelectric capacitor including a lower electrode, a ferroelectric film formed on the lower electrode, and an upper electrode formed on the ferroelectric film, and the upper electrode including a first conductive film formed of a first conductive noble metal oxide, and a second conductive film formed of a metal nitride compound formed on the first conductive film.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: November 29, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Wensheng Wang