Planar Capacitor Patents (Class 438/393)
  • Patent number: 7781863
    Abstract: The semiconductor device according to the present invention includes a lower electrode made of a metallic material, a capacitance film made of an insulating material and laminated on the lower electrode, an upper electrode made of a metallic material, opposed to the lower electrode through the capacitance film, and having an outline smaller than that of the lower electrode in plan view along the opposed direction, and a protective film made of the same material as that of the capacitance film and laminated on the upper electrode.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: August 24, 2010
    Assignee: ROHM Co., Ltd.
    Inventors: Ryotaro Yagi, Yuichi Nakao, Isamu Nishimura
  • Patent number: 7776730
    Abstract: A siloxane polymer composition includes an organic solvent in an amount of about 93 percent by weight to about 98 percent by weight, based on a total weight of the siloxane polymer composition, and a siloxane complex in an amount of about 2 percent by weight to about 7 percent by weight, based on the total weight of the siloxane polymer composition, the siloxane complex including a siloxane polymer with an introduced carboxylic acid and being represented by Formula 1 below, wherein each of R1, R2 R3, and R4 independently represents H, OH, CH3, C2H5, C3H7, C4H9 or C5H11, R? represents CH2, C2H4, C3H6, C4H8, C5H10 or C6H12, and n represents a positive integer so the siloxane polymer of the siloxane complex has a number average molecular weight of about 4,000 to about 5,000.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 17, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-Mi Kim, Young-Ho Kim, Youn-Kyung Wang, Mi-Ra Park
  • Patent number: 7775846
    Abstract: A flat panel display device which is capable of preventing in-line shorts by forming as a face plate a common power line impressing an equal power supply to all pixels. The flat panel display includes a power supply layer formed on an insulation substrate and connected with source/drain electrodes through contact holes; and an insulating layer formed with a contact hole to insulate the power supply layer and a thin film transistor, wherein the thin film transistor is formed over the insulating layer and includes the source/drain electrodes.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: August 17, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Bon Koo, Dong-Chan Shin
  • Patent number: 7772081
    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: September 17, 2008
    Date of Patent: August 10, 2010
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Jianmin Fang, Kang Chen, Haijing Cao
  • Publication number: 20100190314
    Abstract: Electroless plating can be utilized to form electrical interconnects associated with semiconductor substrates. For instance, a semiconductor substrate can be formed to have a dummy structure thereover with a surface suitable for electroless plating, and to also have a digit line thereover having about the same height as the dummy structure. A layer can be formed over the dummy structure and digit line, and openings can be formed through the layer to the upper surfaces of the dummy structure and digit line. Subsequently, a conductive material can be electroless plated within the openings to form electrical contacts within the openings. The opening extending to the dummy structure can pass through a capacitor electrode, and accordingly the conductive material formed within such opening can be utilized to form electrical contact to the capacitor electrode.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Nishant Sinha, Dinesh Chopra, Fred D. Fishburn
  • Patent number: 7763925
    Abstract: A semiconductor device incorporating a capacitor and a method of fabricating the same include a first inter-layer dielectric film formed on a semiconductor substrate, a first electrode pattern formed on the first inter-layer dielectric film, and a capacitor region self-aligned to the first electrode pattern and in which the first inter-layer dielectric film is etched. An MIM capacitor is conformably formed on the sidewall of the first electrode pattern in the capacitor region. In the capacitor region, a first hollow region is formed enclosed by the MIM capacitor and a second electrode pattern fills the first hollow region. The second electrode pattern has a sidewall opposite to the sidewall of the first electrode pattern. The MIM capacitor is conformably formed in the capacitor region that is deepened more than a thickness of an interconnection layer, so that it has a capacitor area wider than an area contacting with the interconnection layer.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: July 27, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jun-Pyo Hong
  • Publication number: 20100181647
    Abstract: In this invention, the film thicknesses of an upper barrier film of a lower electrode of a capacitive element and an upper barrier film of a metallic interconnect layer formed in the same layer as this is made thicker than the film thicknesses of upper barrier films of other metallic interconnect layers. Moreover, in this invention, the film thickness of the upper barrier film of the lower electrode of the capacitive element is controlled to be 110 nm or more, more preferably, 160 nm or more. A decrease in the dielectric voltage of the capacitive dielectric film due to cracks in the upper barrier film does not occur and the deposition temperature of the capacitive dielectric film can be made higher, so that a semiconductor device having a MIM capacitor with high performance and high capacitance can be achieved, where the dielectric voltage of the capacitive dielectric film is improved.
    Type: Application
    Filed: March 30, 2010
    Publication date: July 22, 2010
    Inventors: Toshinori IMAI, Tsuyoshi Fujiwara, Hiroshi Ashihara, Akira Ootaguro, Yoshihiro Kawasaki
  • Publication number: 20100176485
    Abstract: Disclosed is a method of manufacturing a storage capacitor having increased aperture ratio: providing a substrate having a metal layer disposed thereon, and said metal layer is covered correspondingly with a first dielectric layer and a second dielectric layer in sequence; forming a photoresist layer with a uniform thickness to cover said second dielectric layer; performing a process of exposure-to-light and development to a portion of said photoresist layer that is correspondingly disposed over said metal layer sequentially, so that its thickness is less than its original thickness; removing said photoresist layer and etching said portion of said second dielectric layer, so that a thickness of said portion of said second dielectric layer is less than its original thickness, and the etching depth of said portion is greater than that of the other remaining portions of said second dielectric layer; and forming an electrode layer on said second dielectric layer.
    Type: Application
    Filed: May 15, 2009
    Publication date: July 15, 2010
    Inventor: Chiu-Chuan Chen
  • Publication number: 20100176487
    Abstract: An electronic component is provided on a substrate. A thin-film capacitor is attached to the substrate, the thin-film capacitor includes a pyrochlore or perovskite dielectric layer between a plurality of electrode layers, the electrode layers being formed from a conductive thin-film material. A reactive barrier layer is deposited over the thin-film capacitor. The reactive barrier layer includes an oxide having an element with more than one valence state, wherein the element with more than one valence state has a molar ratio of the molar amount of the element that is in its highest valence state to its total molar amount in the barrier of 50% to 100%. Optionally layers of other materials may intervene between the capacitor and reactive barrier layer. The reactive barrier layer may be paraelectric and the electronic component may be a tunable capacitor.
    Type: Application
    Filed: March 25, 2010
    Publication date: July 15, 2010
    Applicant: PARATEK MICROWAVE, INC.
    Inventors: Marina Zelner, Miroea Capanu, Paul Bun Cheuk Woo, Susan C. Nagy, Andrew Cervin-Lawry
  • Publication number: 20100177459
    Abstract: A process for fabricating crown capacitors is described. A substrate having a template layer thereon is provided. A patterned support layer is formed over the template layer. A sacrifice layer is formed over the substrate covering the patterned support layer. Holes are formed through the sacrifice layer, the patterned support layer and the template layer, wherein the patterned support layer is located at a depth at which bowing of the sidewalls of the holes occurs and is bowed less than the sacrifice layer at the sidewalls. A substantially conformal conductive layer is formed over the substrate. The conductive layer is then divided into lower electrodes of the crown capacitors.
    Type: Application
    Filed: January 14, 2009
    Publication date: July 15, 2010
    Applicant: Powerchip Semiconductor Corp.
    Inventors: Kun-Jung Wu, Nagai Yukihiro
  • Patent number: 7749852
    Abstract: Methods of forming a dielectric layer of a MIM capacitor can include forming a passivation layer on a dielectric layer of a MIM capacitor to separate the dielectric layer from direct contact with an overlying photo-resist pattern. Related capacitor structures are also disclosed.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: July 6, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Chae Kim, Duk-Min Yi, Sang-Il Jung, Jong-Wook Hong
  • Patent number: 7749855
    Abstract: A method of forming a capacitor for use as a charge pump with flash memory, comprising: (a) concurrently forming polysilicon gates on a semiconductor body in a core region and a polysilicon middle capacitor plate in a peripheral region, (b) forming a first dielectric layer over the polysilicon gates and the middle capacitor plate, (c) planarizing the first dielectric layer to expose a top portion of the polysilicon gates and a top portion of the middle capacitor plate, (d) forming a second dielectric layer over the top portion of the middle capacitor layer, (e) concurrently forming patterning a second polysilicon layer in the core region and a third capacitor plate in the periphery region and (f) connecting the third capacitor plate to the source/drain well.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: July 6, 2010
    Assignee: Spansion LLC
    Inventors: Nian Yang, Yonggang Wu, David Aoyagi
  • Publication number: 20100164066
    Abstract: An embodiment of an electronic device integrated in a chip of semiconductor material and an embodiment of a corresponding production method are proposed. The electronic device includes a capacitor having a first conductive plate, a second conductive plate, and an insulating layer for insulating the first plate from the second plate. In an embodiment of the invention, at least a selected one between the first plate and the second plate has a non-uniform thickness.
    Type: Application
    Filed: December 29, 2009
    Publication date: July 1, 2010
    Applicant: STMICROELECTRONICS S.R.L.
    Inventor: Antonio Di Franco
  • Publication number: 20100164064
    Abstract: A capacitor and methods for manufacturing the capacitor are disclosed. The method may include forming a first electrode on a substrate, forming a dielectric layer on the first electrode, the dielectric layer having a first silicon oxide (SiO2) layer, a zirconium-doped hafnium oxide (Zr-doped HfO2) layer and a second silicon oxide layer sequentially, and forming a second electrode on the dielectric layer.
    Type: Application
    Filed: December 21, 2009
    Publication date: July 1, 2010
    Inventor: Hyun Dong KIM
  • Publication number: 20100167489
    Abstract: A method of fabricating an MIM capacitor may include a first electrode formed on and/or over a semiconductor substrate, a dielectric layer composed of an oxygen material formed on and/or over the first electrode under an oxygen atmosphere. A second electrode is formed on and/or over the dielectric layer. Because the dielectric layer is formed under an oxygen atmosphere, an oxygen composition ratio of the dielectric layer is increased.
    Type: Application
    Filed: June 26, 2009
    Publication date: July 1, 2010
    Inventor: Seok-Joon Oh
  • Patent number: 7745300
    Abstract: Disclosed is a capacitor and method for forming a capacitor in a semiconductor. The method includes the steps of: (a) forming a lower electrode pattern on a silicon semiconductor substrate; (b) etching a portion of the lower electrode pattern to a predetermined depth to form a step in the lower electrode pattern; (c) forming a dielectric layer and a upper electrode layer on an entire surface of the substrate including the lower electrode pattern; and (e) patterning the upper electrode layer and the dielectric layer to form a upper electrode pattern and a dielectric pattern.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: June 29, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Sang Kwon Kim
  • Patent number: 7745280
    Abstract: A metal-insulator-metal capacitor structure includes a lower electrode, a buffer layer, a barrier layer, a dielectric layer and an upper electrode. The lower electrode is disposed in the buffer layer. The barrier layer covers part of the lower electrode and is disposed between the lower electrode and the upper electrode. The buffer layer serves as an etching stop layer to define the dielectric layer. The dielectric layer in the metal-insulator-metal capacitor structure has a uniform and ideal thickness.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: June 29, 2010
    Assignee: United Microelectronics Corp.
    Inventor: Yu-Ho Chiang
  • Publication number: 20100159665
    Abstract: The present invention provides a semiconductor device, a method of manufacture therefor, and an integrated circuit including the semiconductor device. The semiconductor device, among other elements, includes a recrystallized polysilicon layer 148 located over a gate electrode layer 143, a capacitor 170 located on the recrystallized polysilicon layer 148. The capacitor 170, in this embodiment, includes a first electrode 173, an insulator 175 located over the first electrode 173, and a second electrode 178 located over the insulator 175.
    Type: Application
    Filed: June 4, 2009
    Publication date: June 24, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jiong-Ping Lu, Haowen Bu, Clint Montgomery
  • Publication number: 20100159666
    Abstract: The use of a conductive bidimensional perovskite as an interface between a silicon, metal, or amorphous oxide substrate and an insulating perovskite deposited by epitaxy, as well as an integrated circuit and its manufacturing process comprising a layer of an insulating perovskite deposited by epitaxy to form the dielectric of capacitive elements having at least an electrode formed of a conductive bidimensional perovskite forming an interface between said dielectric and an underlying silicon, metal, or amorphous oxide substrate.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Applicants: STMicroelectronics S.A., Universite Francois Rabelais, UFR Sciences & Techniques
    Inventors: Ludovic Goux, Monique Gervais
  • Patent number: 7736985
    Abstract: The performance of a sensor in a semiconductor device can be improved. A plurality of oscillators forming an ultrasonic sensor are arranged on a main surface of a semiconductor chip. A negative-type photosensitive insulating film which protects the oscillators is deposited on an uppermost layer of the semiconductor chip. At the time of exposure for forming an opening in the photosensitive insulating film, the semiconductor chip is divided into a plurality of exposure areas and exposed, and then, the exposure areas are jointed so that the entire area is exposed. At this time, a stitching exposure area is arranged so that a center of the stitching exposure area in a width direction in the joint portion of the adjacent exposure areas is positioned at a center of a line which connects centers of oscillators located above and below the stitching exposure area.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: June 15, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Hiroyuki Enomoto, Katsuya Hayano, Shuntaro Machida
  • Patent number: 7732851
    Abstract: A capacitor and a method of fabricating the capacitor are provided herein. The capacitor can be formed by forming two or more dielectric layers and a lower electrode, wherein at least one of the two or more dielectric layers is formed before the lower electrode is formed.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: June 8, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-hyun Lee, Sung-ho Park, Sang-jun Choi
  • Patent number: 7732889
    Abstract: A semiconductor device comprises an integrated circuit formed on a substrate with a signal interface and at least one isolator capacitor. The integrated circuit comprises a plurality of interleaved inter-metal dielectric layers and interlayer dielectrics formed on the substrate, a thick passivation layer formed on the plurality of the interleaved inter-metal dielectric layers and interlayer dielectrics, and a thick metal layer formed on the thick passivation layer. The thick passivation layer has a thickness selected to be greater than the isolation thickness whereby testing for defects is eliminated. The one or more isolator capacitors comprise the thick metal layer and a metal layer in the plurality of interleaved inter-metal dielectric layers and interlayer dielectrics separated by the thick passivation layer as an insulator.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: June 8, 2010
    Assignee: Akros Silicon Inc.
    Inventors: Philip John Crawley, Sajol Ghoshal
  • Patent number: 7732296
    Abstract: In a method of fabricating a metal-insulator-metal (MIM) capacitor and a metal-insulator-metal (MIM) capacitor fabricated according to the method, the method comprises: forming an insulating-layer pattern on a semiconductor substrate, the insulating-layer pattern having a plurality of openings that respectively define areas where capacitor cells are to be formed; forming a lower electrode conductive layer on the insulating-layer pattern and on the semiconductor substrate; forming a first sacrificial layer that fills the openings on the lower electrode conductive layer; forming a second sacrificial layer on of the first sacrificial layer; planarizing the second sacrificial layer; exposing an upper surface of the lower electrode conductive layer; removing the exposed lower electrode conductive layer to form a plurality of lower electrodes that are separated from each other, each corresponding to a capacitor cell; and forming dielectric layers and upper electrodes, that are separated from each other, each corres
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: June 8, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-min Park, Seok-jun Won, Min-woo Song, Yong-kuk Jeong, Dae-jin Kwon, Weon-hong Kim
  • Publication number: 20100133652
    Abstract: Provided is a semiconductor device capable of increasing the capacitance of a capacitor, while reducing an area occupied by the capacitor and inductor on a substrate. The semiconductor device includes a first line; an interlayer insulating film that is formed on the first line and has a recess formed at a location corresponding to the first line; and a second line formed in the recess of the interlayer insulating film. The first line, the second line, and an insulating film formed between the first line and the second line constitute a capacitor. At least one of the first line and the second line constitutes an inductor.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 3, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Takao Atsumo
  • Patent number: 7727837
    Abstract: A method of forming an integrated circuit having a capacitor is disclosed. In one embodiment, the method includes forming a capacitor element with a first electrode, a dielectric layer and a second electrode. The capacitor element is formed using a support layer.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: June 1, 2010
    Assignee: Qimonda AG
    Inventors: Ulrike Gruening-von Schwerin, Rolf Weis, Wolfgang Henke, Odo Wunnicke, Till Schloesser, Florian Schnabel, Wolfgang Mueller
  • Patent number: 7727777
    Abstract: In accordance with some embodiments, a ferroelectric polymer memory may be formed of a plurality of stacked layers. Each layer may be separated from the ensuing layer by a polyimide layer. The polyimide layer may provide reduced layer-to-layer coupling, and may improve planarization after the lower layer fabrication.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 1, 2010
    Inventors: Ebrahim Andideh, Mark Isenberger, Michael Leeson, Mani Rahnama
  • Publication number: 20100129978
    Abstract: A method of fabricating a semiconductor device includes forming a first insulating layer on a semiconductor substrate including a first region, forming an electrode pattern embedded in the first insulating layer on the first region, forming a second insulating layer on the first insulating layer and the electrode pattern; forming a recess portion that defines a capacitor region on the first region by etching the first and second insulating layers, wherein the electrode pattern is arranged in the recess portion and a portion of the electrode pattern protrudes from a bottom surface of the recess portion, and forming a dielectric layer and an upper electrode layer on the bottom surface of the recess portion and the protruded portion of the electrode pattern.
    Type: Application
    Filed: September 2, 2009
    Publication date: May 27, 2010
    Inventor: Yoon-hae Kim
  • Publication number: 20100127350
    Abstract: A method of manufacturing a semiconductor device includes forming a lower electrode on a semiconductor substrate, applying a photoresist on the lower electrode, forming an opening in the photoresist spaced from the periphery of the lower electrode, forming a high-dielectric constant film of a high-k material having a dielectric constant of 10 or more, performing liftoff so that the high-dielectric-constant film remains on the lower electrode, and forming an upper electrode on the high-dielectric-constant film remaining after the liftoff.
    Type: Application
    Filed: April 1, 2009
    Publication date: May 27, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Masahiro Totsuka
  • Patent number: 7723771
    Abstract: A capacitor structure comprises a first and a second electrode of conducting material. Between the first and second electrodes, an atomic layer deposited dielectric film is disposed, which comprises zirconium oxide and a dopant oxide. Herein, the dopant comprises an ionic radius that differs by more than 24 pm from an ionic radius of zirconium, while the dielectric film comprises a dopant content of 10 atomic percent or less of the dielectric film material excluding oxygen. A process for fabricating a capacitor comprises a step of forming a bottom electrode of the capacitor. On the bottom electrode, a dielectric film comprising zirconium oxide is deposited, and a step for introducing a dopant oxide into the dielectric film performed. On the dielectric structure, a top electrode is formed.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: May 25, 2010
    Assignee: Qimonda AG
    Inventors: Tim Boescke, Uwe Schroeder
  • Patent number: 7713831
    Abstract: A method for forming a capacitor in a semiconductor device is disclosed. The method includes forming a storage node electrode on a semiconductor substrate, forming a dielectric layer having a high dielectric constant on the storage node electrode, depositing a plate electrode on the dielectric layer, thereby forming by-product impurities, and removing by-product impurities remaining on the plate electrode by introducing a hydrogen (H) atom-containing gas onto the semiconductor substrate while depositing a capping layer on the plate electrode.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: May 11, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Cheol-Hwan Park, Dong-Su Park, Eun A. Lee, Hye Jin Seo
  • Publication number: 20100091428
    Abstract: Disclosed is a multilayer insulator, a metal-insulator-metal (MIM) capacitor with the same, and a fabricating method thereof. The capacitor includes: a first electrode; an insulator disposed on the first electrode, the insulator including: a laminate structure in which an aluminum oxide (Al2O3) layer and a hafnium oxide (HfO2) layer are laminated alternately in an iterative manner and a bottom layer and a top layer are formed of the same material; and a second electrode disposed on the insulator.
    Type: Application
    Filed: July 14, 2009
    Publication date: April 15, 2010
    Inventors: Kwan-Soo KIM, Soon-Wook KIM
  • Publication number: 20100093150
    Abstract: One capacitor fabrication process of the invention comprises a noble metal layer formation step of forming a noble metal layer on one surface of a substrate, a dielectric layer formation step of forming a dielectric layer on the noble metal layer, a metal foil formation step of forming a metal foil of 10 ?m or greater in thickness on the dielectric layer, a separation step of separating the noble metal layer from the dielectric layer at an interface, and an electrode layer formation step of forming an electrode layer on the second surface of the dielectric layer separated off by the separation step, wherein the second surface faces away from the first surface of the dielectric layer with the metal foil formed thereon.
    Type: Application
    Filed: December 11, 2009
    Publication date: April 15, 2010
    Applicant: TDK CORPORATION
    Inventors: Tomohiko KATO, Yuko Saya, Osamu Shinoura
  • Patent number: 7691719
    Abstract: Embodiments of a semiconductor device having storage nodes include an interlayer insulating layer disposed on a semiconductor substrate; a conductive pad disposed in the interlayer insulating layer to contact with a predetermined portion of the substrate, an upper portion of the conductive pad protruding above the interlayer insulating layer; an etch stop layer disposed on the conductive pad and the interlayer insulating layer; and storage nodes penetrating the etch stop layer and disposed on the conductive pad. A penetration path of wet etchant is completely blocked during the wet etch process that removes the mold oxide layer. Therefore, inadvertent etching of the insulating layer due to penetration of wet etchant is prevented, resulting in a stronger, more stable, storage node structure.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: April 6, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheol-Ju Yun, Kang-Yoon Lee, In-Ho Nam
  • Patent number: 7691704
    Abstract: A method for manufacturing a semiconductor device having a damascene metal/insulator/metal (MIM)-type capacitor and metal lines including providing a semiconductor device; sequentially forming a first interlayer insulating film and a second interlayer insulating film over the semiconductor substrate; simultaneously forming a vias hole and a lower metal line in a line region and a lower electrode in a capacitor region, wherein the lower metal line and the lower electrode are electrically connected to the semiconductor device; sequentially forming a dielectric film, a third interlayer insulating film, a fourth interlayer insulating film and a fifth interlayer insulating film over the semiconductor substrate; and then simultaneously forming a plurality of upper electrodes, a plurality of second vias holes and a plurality of second upper metal lines in the capacitor region electrically connected to the plurality of upper electrodes, a plurality of third vias holes and a plurality of second upper metal lines in th
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: April 6, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Seon-Heui Kim
  • Publication number: 20100078697
    Abstract: A semiconductor device according to the present invention uses a capacitor including a capacitive insulating film sandwiched between an upper electrode and a lower electrode. The lower electrode of the capacitor is constructed by overlappingly connecting a plurality of electrode portions together. A lower electrode portion (plug type electrode) of the adjacent electrode portions is made of columnar tungsten. The lower electrode portion further includes a conductive film (barrier film) that covers a side surface and a bottom surface of the tungsten. A top surface of the tungsten is covered with a bottom portion of an upper electrode portion (cylinder type electrode).
    Type: Application
    Filed: September 23, 2009
    Publication date: April 1, 2010
    Inventor: Kenichi Sugino
  • Patent number: 7685703
    Abstract: A monolithic or essentially monolithic single layer capacitor with high structural strength and capacitance, a printed circuit board having the capacitor mounted thereon, and a method of making. Sheets of green-state ceramic dielectric material and glass/metal composite material are laminated together, diced into individual chips, and fired to sinter the glass and the ceramic together. The composite material contains an amount of metal sufficient to render the composite conductive whereby the composite may be used for one or both electrodes and for mounting the capacitor to the printed circuit board. Vertically-oriented surface mountable capacitors and hybrid capacitors are provided.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: March 30, 2010
    Assignee: Presidio Components, Inc.
    Inventors: Alan Devoe, Lambert Devoe, Hung Trinh
  • Patent number: 7685687
    Abstract: Methods of making metal/dielectric/metal structures include casting copper slurry onto a fugitive substrate to form the first electrode and subsequently casting dielectric and copper slurries onto the first electrode, removing the fugitive substrate and co-firing the structure, wherein the dielectric comprises glass in an amount that is less than 20% by weight of the total inorganic composition and the dielectric achieves substantially complete densification. Alternatively, a metal tape and a dielectric tape, comprising glass in the above amount, may be formed and laminated together to form a metal/dielectric/metal green tape structure, which is co-fired, such that the structure achieves substantially complete densification.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: March 30, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William Borland, Lorri Drozdyk
  • Patent number: 7687366
    Abstract: An embedded passive structure, its method of formation, and its integration onto a substrate during fabrication are disclosed. In one embodiment, the embedded passive structure is a thin film capacitor (TFC) formed using a thin film laminate that has been mounted onto a substrate. The TFC's capacitor dielectric and/or lower electrode layers are patterned in such a way as to reduce damage and improve cycle time. In one embodiment, the capacitor dielectric has a high dielectric constant and the substrate is an organic packaging substrate.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: March 30, 2010
    Assignee: Intel Corporation
    Inventor: Yongki Min
  • Patent number: 7682898
    Abstract: A semiconductor device of the present invention includes a plurality of lower electrodes covering the entire surfaces of a plurality of trenches formed in a first interlayer insulating film, a capacitive insulating film covering the entire surfaces of the plurality of lower electrodes, and an upper electrode covering the surfaces of the plurality of lower electrodes from above with the capacitive insulating film interposed between the upper electrode and the plurality of lower electrodes. The upper electrode is formed with a stress-relieving part, such as a crack, a notch or a recess.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: March 23, 2010
    Assignee: Panasonic Corporation
    Inventor: Yoshiyuki Shibata
  • Patent number: 7682924
    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 material is formed within the openings and against a sidewall portion of the trench to less than completely fill the trench. Covering material is formed over an elevationally outer lateral interface of the conductive material within the trench and the insulative material of the circuitry area. 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 and to expose the conductive material within the trench. The conductive material within the array area is incorporated into a plurality of capacitors.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: March 23, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Vishwanath Bhat, Kevin R. Shea, Farrell Good
  • Publication number: 20100068856
    Abstract: A memory cell array including a data line; a capacitor; and a transistor coupled between the data line and the capacitor. At least one of the capacitor and the transistor includes a material with a mutable electrical characteristic. A memory cell array including a first transistor coupled between a first node, a second node, and a third node; and a second transistor coupled between the second node and a fourth node. The first transistor includes a material with a mutable electrical characteristic.
    Type: Application
    Filed: November 19, 2009
    Publication date: March 18, 2010
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: William S. Wong, Sanjiv Sambandan, Tse Nga Ng, Robert A. Street
  • Publication number: 20100065942
    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: Application
    Filed: September 17, 2008
    Publication date: March 18, 2010
    Applicant: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Jianmin Fang, Kang Chen, Haijing Cao
  • Patent number: 7678659
    Abstract: A method for reducing leakage current in a semiconductor capacitor. The method includes providing a top plate for collecting charge, providing a bottom plate for collecting an opposing charge to the top plate, providing a dielectric layer for insulation between the top plate and the bottom plate, providing a top contact, providing a bottom contact, providing a plurality of vias including top level vias for connecting the top plate to the top contact, and bottom level vias for connecting the bottom plate to the bottom contact; and separating a via and an adjacent structure such that their distance is greater than a minimum via spacing requirement of a foundry design rule for a semiconductor process producing the semiconductor capacitor.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: March 16, 2010
    Assignee: MediaTek Inc.
    Inventors: Chao-Chun Tu, Ming-Chieh Lin
  • Publication number: 20100058583
    Abstract: A method of manufacturing a sensor for in vivo applications includes the steps of providing two wafers of an electrically insulating material. A recess is formed in the first wafer, and a capacitor plate is formed in the recess of the first wafer. A second capacitor plate is formed in a corresponding region of the second wafer, and the two wafers are affixed to one another such that the first and second capacitor plates are arranged in parallel, spaced-apart relation.
    Type: Application
    Filed: November 4, 2009
    Publication date: March 11, 2010
    Inventors: Florent Cros, David O'Brien, Michael Fonseca, Matthew Abercrombie, Jin Woo Park, Angad Singh
  • Patent number: 7674682
    Abstract: An on-chip decoupling capacitor (106) and method of fabrication. The decoupling capacitor (106) is integrated at the top metal interconnect level (104) and includes surface protection cladding (109) for the copper metal (104b) of the top metal interconnect.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: March 9, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Edmund Burke, Satyavolu S. Papa Rao, Timothy A. Rost
  • Patent number: 7675138
    Abstract: A first capacitor is formed on a substrate and connected to a first differential node of a differential circuit, and a second capacitor is formed on the substrate and connected to a second differential node of the differential circuit. A third capacitor is connected between the first differential node and the second differential node, and is formed at least partially above the first capacitor. In this way, a size of the first capacitor and/or the second capacitor may be reduced on the substrate.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: March 9, 2010
    Assignee: Broadcom Corporation
    Inventor: Bo Zhang
  • Publication number: 20100055862
    Abstract: A method produces integrated circuit arrangement that includes an undulating capacitor in a conductive structure layer. The surface area of the capacitor is enlarged in comparison with an even capacitor. The capacitor is interlinked with dielectric regions at its top side and/or its underside, so that it can be produced by methods which may not have to be altered in comparison with conventional CMP methods.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 4, 2010
    Inventor: Anton Steltenpohl
  • Patent number: 7670899
    Abstract: A MIM capacitor includes a lower electrode disposed on a semiconductor substrate. A dielectric layer is disposed on the lower electrode to completely cover an exposed surface of the lower electrode. An upper electrode is disposed on the dielectric layer. A method for forming a MIM capacitor includes forming a lower electrode on a semiconductor substrate. A dielectric layer and an upper metal layer are formed on an entire surface of the substrate to cover the lower electrode. The dielectric and upper metal layers are patterned on the lower electrode.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: March 2, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Ki Min Lee
  • Patent number: 7670919
    Abstract: An article includes a top electrode that is embedded in a solder mask. An article includes a top electrode that is on a core structure. A process of forming the top electrode includes reducing the solder mask thickness and forming the top electrode on the reduced-thickness solder mask. A process of forming the top electrode includes forming the top electrode over a high-K dielectric that is in a patterned portion of the core structure.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: March 2, 2010
    Assignee: Intel Corporation
    Inventors: John J. Tang, Xiang Yin Zeng, Jiangqi He, Ding Hai
  • Patent number: 7671430
    Abstract: A method is for manufacturing a microeletromechanical system resonator having a semiconductor device and a microelectromechanical system structure unit formed on a substrate. The method includes: forming a lower electrode of an oxide-nitride-oxide capacitor unit included in the semiconductor device using a first silicon layer; forming, using a second silicon layer, a substructure of the microelectromechanical system structure unit and an upper electrode of the oxide-nitride-oxide capacitor unit included in the semiconductor device; and forming, using a third silicon layer, a superstructure of the microelectromechanical system structure unit and a gate electrode of a complementary metal oxide semiconductor circuit unit included in the semiconductor device.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: March 2, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Shogo Inaba, Akira Sato, Toru Watanabe, Takeshi Mori