Multiple Metal Levels On Semiconductor, Separated By Insulating Layer (e.g., Multiple Level Metallization For Integrated Circuit) Patents (Class 257/758)
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Patent number: 8928144Abstract: A three-dimensional 3D nonvolatile memory device includes vertical channel layers protruding from a substrate; interlayer insulating layers and conductive layer patterns alternately deposited along the vertical channel layers; a barrier metal pattern surrounding each of the conductive layer patterns; a charge blocking layer interposed between the vertical channel layers and the barrier metal patterns; and a diffusion barrier layer interposed between the barrier metal patterns and the charge blocking layer.Type: GrantFiled: August 30, 2012Date of Patent: January 6, 2015Assignee: SK Hynix Inc.Inventor: Suk Goo Kim
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Patent number: 8921982Abstract: The present invention provides a technique for improving the reliability of a semiconductor device where spreading of cracking that occurs at the time of dicing to a seal ring can be restricted even in a semiconductor device with a low-k film used as an interlayer insulating film. Dummy vias are formed in each layer on a dicing region side. The dummy vias are formed at the same intervals in a matrix as viewed in a top view. Even in the case where cracking occurs at the time of dicing, the cracking can be prevented from spreading to a seal ring by the dummy vias. As a result, resistance to moisture absorbed in a circuit formation region can be improved, and deterioration in reliability can be prevented.Type: GrantFiled: October 31, 2013Date of Patent: December 30, 2014Assignee: Renesas Electronics CorporationInventor: Kazuo Tomita
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Patent number: 8922019Abstract: Disclosed is a semiconductor device wherein an insulation layer has a via opening with an aluminum layer in the via opening and in contact with the last wiring layer of the device. There is a barrier layer on the aluminum layer followed by a copper plug which fills the via opening. Also disclosed is a process for making the semiconductor device.Type: GrantFiled: October 31, 2013Date of Patent: December 30, 2014Assignee: International Business Machines CorporationInventors: Mukta G. Farooq, Emily R. Kinser, Ian D. Melville, Krystyna W. Semkow
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Patent number: 8916974Abstract: Methods and apparatus for routing signal paths in an integrated circuit. One or more signal routing paths for transferring signals of the integrated circuit may be determined. A dummy fill pattern for the integrated circuit may be determined based on the one or more metal density specifications and at least one design rule for reducing cross coupling capacitance between the dummy fill pattern and the routing paths. The signal routing paths and/or the dummy fill pattern may be incrementally optimized to meet one or more timing requirements of the integrated circuit.Type: GrantFiled: March 8, 2012Date of Patent: December 23, 2014Assignee: International Business Machines CorporationInventors: Karan B. Koti, Veena Prabhu
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Patent number: 8912657Abstract: The semiconductor device according to the present invention includes a semiconductor substrate, a first insulating layer laminated on the semiconductor substrate, a first metal wiring pattern embedded in a wire-forming region of the first insulating layer, a second insulating layer laminated on the first insulating layer, a second metal wiring pattern embedded in a wire-forming region of the second insulating layer and first dummy metal patterns embedded each in a wire-opposed region opposing to the wire-forming region of the second insulating layer and in a non-wire-opposed region opposing to a non-wire-forming region other than the wire-forming region of the second insulating layer, the wire-opposed region and the non-wire-opposed region each in a non-wire-forming region other than the wire-forming region of the first insulating layer.Type: GrantFiled: July 2, 2010Date of Patent: December 16, 2014Assignee: Rohm Co., Ltd.Inventors: Yuichi Nakao, Satoshi Kageyama, Masaru Naitou
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Patent number: 8912639Abstract: Aspects of a method and system for configuring a transformer embedded in a multi-layer integrated circuit package are provided. In this regard, a windings ratio of a transformer embedded in a multi-layer IC package bonded to an IC may be configured, via logic, circuitry, and/or code in the IC, based on signal levels at one or more terminals of the transformer. The transformer may comprise a plurality of inductive loops fabricated in transmission line media. The integrated circuit may be flip-chip bonded to the multi-layer package. The IC may comprise a signal strength indicator enabled to measure signal levels input to or output by the transformer. The windings ratio may be configured via one or more switches in the IC and/or in the multi-layer package. The IC and/or the multi-layer package may comprise ferromagnetic material which may improve magnetic coupling of the transformer.Type: GrantFiled: June 7, 2012Date of Patent: December 16, 2014Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
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Patent number: 8912655Abstract: When a first wiring and/or a second wiring is formed, a connection portion is formed in the first wiring and/or the second wiring which covers a part of a lower electrode layer outside the memory cell array. An etching suppressing portion is formed above the connection portion. A contact hole is formed in which a portion under the etching suppressing portion reaches up to a connection potion, and the other portion reaches up to the lower electrode layer by performing etching to a laminated body in a range including the etching suppressing portion. The laminated body includes the insulating layer, the first wiring, a memory cell layer, the second wiring, and the etching suppressing portion. The contact layer is formed by burying a conductive material in the contact hole.Type: GrantFiled: March 21, 2012Date of Patent: December 16, 2014Assignee: Kabushiki Kaisha ToshibaInventor: Shingo Nakajima
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Patent number: 8907497Abstract: A device and method for fabricating a device is disclosed. An exemplary device includes a first conductive layer disposed over a substrate, the first conductive layer including a first plurality of conductive lines extending in a first direction. The device further includes a second conductive layer disposed over the first conductive layer, the second conductive layer including a second plurality of conductive lines extending in a second direction. The device further includes a self-aligned interconnect formed at an interface where a first conductive line of the first plurality of conductive lines is in electrical contact with a first conductive line of the second plurality of conductive lines. The device further includes a blocking portion interposed between a second conductive line of the first plurality of conductive lines and a second conductive line of the second plurality of conductive lines.Type: GrantFiled: April 27, 2012Date of Patent: December 9, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shih-Ming Chang, Ken-Hsien Hsieh, Tsong-Hua Ou, Ru-Gun Liu, Fang-Yu Fan, Yuan-Te Hou
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Publication number: 20140353830Abstract: Semiconductor devices with multilayer flex interconnect structures. In some embodiments, a semiconductor device may include a semiconductor chip coupled to a planar substrate and a multilayer flex interconnect structure coupled to the semiconductor chip, the multilayer flex interconnect structure including at least: a first conductive layer, a second conductive layer, and a dielectric layer disposed between the first and second conductive layers. The semiconductor device may also include another semiconductor chip coupled to the planar substrate and placed in a side-by-side configuration with respect to the semiconductor chip, where the multilayer flex interconnect structure provides electrical connections between at least two terminals of the semiconductor chip and at least two terminals of the other semiconductor chip.Type: ApplicationFiled: May 28, 2013Publication date: December 4, 2014Applicant: Freescale Semiconductor, Inc.Inventors: Burton J. Carpenter, Jr., Twila J. Eichman
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Patent number: 8900989Abstract: The present disclosure provides a method for forming a semiconductor device. The method includes forming first conductive layer structures in a first dielectric layer on a substrate; forming a patterned photoresist layer having portions that are each disposed over a respective one of the first conductive layer structures; forming an energy removable film (ERF) on the sidewalls of each of the portions; forming a second dielectric layer over the ERFs, the portions of the patterned photoresist layer, and the first dielectric layer; removing the portions to leave behind a plurality of openings; filling a conductive material in the openings, the conductive material defining second conductive layer structures; forming a ceiling layer over the second conductive layer structures, the ERFs, and the second dielectric layer; and applying energy to the ERFs to partially remove the ERFs on the sidewalls of the portions thereby forming air gaps.Type: GrantFiled: March 6, 2013Date of Patent: December 2, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Cheng-Hsiung Tsai, Chung-Ju Lee
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Patent number: 8896045Abstract: A memory cell includes a first electrode, a second electrode, a layer of phase change material extending from a first contact with the first electrode to a second contact with the second electrode, and a sidewall spacer contacting the second electrode and a sidewall of the layer of phase change material adjacent to the second contact.Type: GrantFiled: April 19, 2006Date of Patent: November 25, 2014Assignee: Infineon Technologies AGInventors: Jan Boris Philipp, Thomas Happ
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Patent number: 8896129Abstract: A semiconductor device includes a substrate including a circuit region where a circuit element is formed, a multilayer wiring layer that is formed on the substrate and composed of a plurality of wiring layers and a plurality of via layers that are laminated, and an electrode pad that is formed on the multilayer wiring layer. An interlayer insulating film is formed in a region of a first wiring layer that is a top layer of the plurality of wiring layers, in the region the electrode pad and the first circuit region overlapping each other in a planar view of the electrode pad.Type: GrantFiled: February 15, 2013Date of Patent: November 25, 2014Assignee: Renesas Electronics CorporationInventors: Ryo Mori, Kazuki Fukuoka, Naozumi Morino, Yoshinori Deguchi
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Patent number: 8896124Abstract: A circuit device is configured with robust circuit connectors. In connection with various example embodiments, an integrated circuit device includes one or more via network layers below a bond pad contact, connecting the bond pad contact with one or more underlying metal layers. Each via network layer includes a plurality of via strips extending about parallel to the bond pad contact and in different directions to structurally support the bond pad contact.Type: GrantFiled: April 4, 2011Date of Patent: November 25, 2014Assignee: NXP B.V.Inventors: Yuan Li, Som Nath, Maarten Jeroen Van Dort
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Patent number: 8889491Abstract: An electronic fuse structure having an Mx level including an Mx dielectric, a fuse line, an Mx cap dielectric above at least a portion of the Mx dielectric, and a modified portion of the Mx cap dielectric directly above at least a portion of the fuse line, where the modified portion of the Mx cap dielectric is chemically different from the remainder of the Mx cap dielectric, an Mx+1 level including an Mx+1 dielectric, a first Mx+1 metal, an Mx+1 cap dielectric above of the Mx+1 dielectric and the first Mx+1 metal, where the Mx+1 level is above the Mx level, and a first via electrically connecting the fuse line to the first Mx+1 metal.Type: GrantFiled: January 28, 2013Date of Patent: November 18, 2014Assignee: International Business Machines CorporationInventors: Ronald G. Filippi, John A. Fitzsimmons, Erdem Kaltalioglu, Ping-Chuan Wang, Lijuan Zhang
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Publication number: 20140332963Abstract: An electronic interconnect structure having a hybridized metal structure near regions of high operating temperature on an integrated circuit, and methods of making the same. The hybridized metal structure features at least two different metals in a single metallization level. The first metal is in a region of high operating temperature and the second region is in a region of normal operating temperatures. In a preferred embodiment the first metal includes aluminum and is in a first level metallization over an active area of the device while the second metal includes copper. In some embodiments, the first and second metals are not in direct physical contact. In other embodiments the first and second metals physically contact each other. In a preferred embodiment, a top surface of the first metal is not co-planar with a top surface of the second metal, despite being in the same metallization level.Type: ApplicationFiled: May 9, 2013Publication date: November 13, 2014Applicant: International Business Machines CorporationInventors: Ronald G. Filippi, Erdem Kaltalioglu, Ping-Chuan Wang, Lijuan Zhang
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Patent number: 8883628Abstract: A structure comprises a top metal connector formed underneath a bond pad. The bond pad is enclosed by a first passivation layer and a second passivation layer. A polymer layer is further formed on the second passivation layer. The dimension of an opening in the first passivation layer is less than the dimension of the top metal connector. The dimension of the top metal connector is less than the dimensions of an opening in the second passivation layer and an opening in the polymer layer.Type: GrantFiled: June 25, 2013Date of Patent: November 11, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yao-Chun Chuang, Chang-Chia Huang, Tsung-Shu Lin, Chen-Cheng Kuo, Chen-Shien Chen
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Patent number: 8884400Abstract: A device includes a metal pad and a passivation layer having a portion overlapping the metal pad. A capacitor includes a bottom capacitor electrode underlying the passivation layer, wherein the bottom capacitor includes the metal pad. The capacitor further includes a top capacitor electrode over the portion of the passivation layer; and a capacitor insulator including the portion of the passivation layer.Type: GrantFiled: December 27, 2012Date of Patent: November 11, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hao-Yi Tsai, Hsien-Wei Chen, Hung-Yi Kuo, Tung-Liang Shao, Ying-Ju Chen, Tsung-Yuan Yu, Jie Chen
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Patent number: 8884433Abstract: A circuit structure includes a semiconductor substrate, first and second metallic posts over the semiconductor substrate, an insulating layer over the semiconductor substrate and covering the first and second metallic posts, first and second bumps over the first and second metallic posts or over the insulating layer. The first and second metallic posts have a height of between 20 and 300 microns, with the ratio of the maximum horizontal dimension thereof to the height thereof being less than 4. The distance between the center of the first bump and the center of the second bump is between 10 and 250 microns.Type: GrantFiled: August 24, 2009Date of Patent: November 11, 2014Assignee: Qualcomm IncorporatedInventors: Mou-Shiung Lin, Chien-Kang Chou, Ke-Hung Chen
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Patent number: 8883642Abstract: In one embodiment, a method of manufacturing a semiconductor device includes forming a concave portion on a surface of a substrate to be processed. The method further includes forming a coating film on the substrate to embed the coating film in the concave portion. The method further includes performing a first heat treatment in an atmosphere including an oxidant which contains polar molecules. The method further includes performing a second heat treatment after the first heat treatment by irradiating the coating film with a microwave after or while exposing the coating film to a liquid or a gas containing polar molecules.Type: GrantFiled: February 28, 2013Date of Patent: November 11, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Wakana Kai, Tomonori Aoyama
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Patent number: 8884288Abstract: The present invention provides a semiconductor structure for testing MIM capacitors. The semiconductor structure comprises: a first metal layer comprising at least a first circuit area and a second circuit area; a second metal layer located below the first metal layer with a first dielectric layer lying therebetween and connected with the second circuit area; a top plate located within the first dielectric layer closer to the first metal layer and connected with the first circuit area; a bottom plate located within the first dielectric layer closer to the second metal layer and separated from the top plate with an insulation layer therebetween and connected with the second circuit area. The second metal layer is connected with the substrate through a first electric pathway so as to form a second electric pathway from the top plate to the substrate when an electric leakage region exists in the insulation layer.Type: GrantFiled: September 30, 2013Date of Patent: November 11, 2014Assignee: Shanghai Huali Microelectronics CorporationInventors: Qiang Li, Zhuanlan Sun, Changhui Yang
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Patent number: 8878203Abstract: A switching circuit comprises a first transistor and a second transistor formed in an active area of semiconductor substrate. The source and drain regions of the transistors are electrically connected to respective source wires and drain wires through a plurality of intermediate metal layers stacked above the transistor. Electrical connections between different layers are made with a plurality of vias. To improve switching performance, the intermediate wires are disposed such that intermediate wires electrically connected to the transistor source regions are not directly beneath the drain wires. Similarly, intermediate wires electrically connected to drain regions are arranged not to be directly underneath source wires.Type: GrantFiled: March 6, 2013Date of Patent: November 4, 2014Assignee: Kabushiki Kaisha ToshibaInventor: Takayuki Teraguchi
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Patent number: 8878365Abstract: A semiconductor device, including: a semiconductor layer; a first conductive layer formed above the semiconductor layer and having a first width; a second conductive layer connected to the first conductive layer and having a second width which is smaller than the first width; an interlayer dielectric formed above the first conductive layer and the second conductive layer; and an electrode pad formed above the interlayer dielectric. A connection section at which the first conductive layer and the second conductive layer are connected is disposed in a specific region positioned inward from a line extending vertically downward from an edge of the electrode pad; and a reinforcing section is provided at the connection section.Type: GrantFiled: October 14, 2011Date of Patent: November 4, 2014Assignee: Seiko Epson CorporationInventors: Takeshi Yuzawa, Masatoshi Tagaki
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Patent number: 8878349Abstract: A semiconductor chip includes a semiconductor substrate having one surface, an other surface which faces away from the one surface, and through holes which pass through the one surface and the other surface; through electrodes filled in the through holes; and a gettering layer formed of polysilicon interposed between the through electrodes and inner surfaces of the semiconductor substrate whose form is defined by the through holes.Type: GrantFiled: August 15, 2012Date of Patent: November 4, 2014Assignee: SK Hynix Inc.Inventors: Gyu Jei Lee, Kang Won Lee, Hyun Joo Kim
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Patent number: 8878333Abstract: A semiconductor device includes: a semiconductor substrate having a main surface; an electrode in a device region on the main surface; a metal wiring on the main surface and having a first end connected to the electrode; an electrode pad outside the device region and spaced from the metal wiring; an air gap between the main surface and an air gap forming film on the main surface, enveloping the first end of the metal wiring and the electrode, and having a first opening; a resin closing the first opening and covering a second end of the metal wiring; a liquid repellent film facing the air gap and increasing contact angle of the resin, when liquid, relative to contact angles on the semiconductor substrate and the air gap forming film; and a metal film connecting the metal wiring to the electrode pad through a second opening located in the resin.Type: GrantFiled: July 10, 2012Date of Patent: November 4, 2014Assignee: Mitsubishi Electric CorporationInventors: Youichi Nogami, Hidetoshi Koyama, Yoshitsugu Yamamoto
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Patent number: 8878364Abstract: A method for fabricating a semiconductor device according to an embodiment, includes forming a dielectric film above a substrate; forming an opening in the dielectric film; forming a high melting metal film on a side wall and a bottom surface of the opening; forming a seed film of copper (Cu) on the high melting metal film; performing nitriding process after the seed film is formed; and performing electroplating process, in which a Cu film is buried in the opening while energizing the seed film after performing nitriding process.Type: GrantFiled: February 15, 2013Date of Patent: November 4, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Toshiyuki Morita, Akitsugu Hatazaki, Kazumasa Ito, Hiroshi Toyoda
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Patent number: 8878362Abstract: Disclosed are devices and methods related to metallization of semiconductors. A metalized structure can include a first titanium (Ti) layer disposed over a compound semiconductor, a first titanium nitride (TiN) layer disposed over the first Ti layer, and a copper (Cu) layer disposed over the first TiN layer. The first Ti layer and the first TiN layer can be configured as a barrier between the Cu layer and the compound semiconductor. The metalized structure can further include a second TiN layer disposed over the Cu layer and a first platinum (Pt) layer disposed over the second TiN layer.Type: GrantFiled: February 22, 2013Date of Patent: November 4, 2014Assignee: Skyworks Solutions, Inc.Inventor: Kezia Cheng
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Patent number: 8872347Abstract: The semiconductor device has insulating films 40, 42 formed over a substrate 10; an interconnection 58 buried in at least a surface side of the insulating films 40, 42; insulating films 60, 62 formed on the insulating film 42 and including a hole-shaped via-hole 60 and a groove-shaped via-hole 66a having a pattern bent at a right angle; and buried conductors 70, 72a buried in the hole-shaped via-hole 60 and the groove-shaped via-hole 66a. A groove-shaped via-hole 66a is formed to have a width which is smaller than a width of the hole-shaped via-hole 66. Defective filling of the buried conductor and the cracking of the inter-layer insulating film can be prevented. Steps on the conductor plug can be reduced. Accordingly, defective contact with the upper interconnection layer and the problems taking place in forming films can be prevented.Type: GrantFiled: July 13, 2012Date of Patent: October 28, 2014Assignee: Fujitsu Semiconductor LimitedInventor: Kenichi Watanabe
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Patent number: 8872334Abstract: In a manufacturing method of a semiconductor device incorporating a semiconductor element in a multilayered wiring structure including a plurality of wiring layers and insulating layers, a semiconductor element is mounted on a silicon support body whose thickness is reduced to a desired thickness and which are equipped with a plurality of through-vias running through in the thickness direction; an insulating layer is formed to embed the semiconductor element; then, a plurality of wiring layers is formed on the opposite surfaces of the silicon support body in connection with the semiconductor element. Thus, it is possible to reduce warping which occurs in proximity to the semiconductor element in manufacturing, thus improving a warping profile in the entirety of a semiconductor device. Additionally, it is possible to prevent semiconductor elements from becoming useless, improve a yield rate, and produce a thin-type semiconductor device with high-density packaging property.Type: GrantFiled: March 22, 2011Date of Patent: October 28, 2014Assignee: NEC CorporationInventors: Shintaro Yamamichi, Katsumi Kikuchi, Yoshiki Nakashima, Kentaro Mori
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Patent number: 8872344Abstract: An integrated circuit structure includes a first conductive layer (MET4) including a first forked conductive structure (310), an insulating layer (320, ILD45) substantially disposed over the first forked conductive structure (310), a plurality of conductive vias (331-334) through the insulating layer (ILD45) and electrically connecting with the first forked conductive structure (310), and a second conductive layer (MET5) including a second forked conductive structure (340) substantially disposed over at least a portion of the insulating layer (ILD45) and generally perpendicular to the first forked conductive structure (310), the plurality of conductive vias (331-334) electrically connecting with the second forked conductive structure (340). Other structures, devices, and processes are also disclosed.Type: GrantFiled: May 5, 2011Date of Patent: October 28, 2014Assignee: Texas Instruments IncorporatedInventor: Hugh Thomas Mair
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Patent number: 8872353Abstract: The semiconductor device has insulating films 40, 42 formed over a substrate 10; an interconnection 58 buried in at least a surface side of the insulating films 40, 42; insulating films 60, 62 formed on the insulating film 42 and including a hole-shaped via-hole 60 and a groove-shaped via-hole 66a having a pattern bent at a right angle; and buried conductors 70, 72a buried in the hole-shaped via-hole 60 and the groove-shaped via-hole 66a. A groove-shaped via-hole 66a is formed to have a width which is smaller than a width of the hole-shaped via-hole 66. Defective filling of the buried conductor and the cracking of the inter-layer insulating film can be prevented. Steps on the conductor plug can be reduced. Accordingly, defective contact with the upper interconnection layer and the problems taking place in forming films can be prevented.Type: GrantFiled: February 28, 2013Date of Patent: October 28, 2014Assignee: Fujitsu Semiconductor LimitedInventor: Kenichi Watanabe
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Patent number: 8872279Abstract: An electrical contact structure distributes current along a length thereof. The electrical contact structure includes a plurality of n metal rectangles on n levels of metal. The rectangle on one metal level is at least as wide in width and vertically covers in width the rectangle on the metal level immediately below. The rectangle on one metal level is shorter in length than and substantially aligned at a first end with the rectangle on the metal level immediately below. Rectangle first ends are substantially aligned. Features of an exemplary FET transistor of this invention are a source and drain terminal electrical contact structure, a multi-level metal ring connecting gate rectangles on both ends, and a wider-than-minimum gate-to-gate spacing. The invention is useful, for example, in an electromigration-compliant, high performance transistor.Type: GrantFiled: January 11, 2012Date of Patent: October 28, 2014Assignee: International Business Machines CorporationInventors: David R. Greenberg, Jean-Olivier Plouchart, Alberto Valdes-Garcia
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Patent number: 8872352Abstract: The semiconductor device has insulating films 40, 42 formed over a substrate 10; an interconnection 58 buried in at least a surface side of the insulating films 40, 42; insulating films 60, 62 formed on the insulating film 42 and including a hole-shaped via-hole 60 and a groove-shaped via-hole 66a having a pattern bent at a right angle; and buried conductors 70, 72a buried in the hole-shaped via-hole 60 and the groove-shaped via-hole 66a. A groove-shaped via-hole 66a is formed to have a width which is smaller than a width of the hole-shaped via-hole 66. Defective filling of the buried conductor and the cracking of the inter-layer insulating film can be prevented. Steps on the conductor plug can be reduced. Accordingly, defective contact with the upper interconnection layer and the problems taking place in forming films can be prevented.Type: GrantFiled: February 28, 2013Date of Patent: October 28, 2014Assignee: Fujitsu Semiconductor LimitedInventor: Kenichi Watanabe
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Publication number: 20140312499Abstract: The reliability of wirings, each of which includes a main conductive film containing copper as a primary component, is improved. On an insulating film including the upper surface of a wiring serving as a lower layer wiring, an insulating film formed of a silicon carbonitride film having excellent barrier properties to copper is formed; on the insulating film, an insulating film formed of a silicon carbide film having excellent adhesiveness to a low dielectric constant material film is formed; on the insulating film, an insulating film formed of a low dielectric constant material as an interlayer insulating film is formed; and thereafter a wiring as an upper layer wiring is formed.Type: ApplicationFiled: June 30, 2014Publication date: October 23, 2014Applicant: Renesas Electronics CorporationInventors: Junji NOGUCHI, Takayuki OSHIMA, Noriko MIURA, Kensuke ISHIKAWA, Tomio IWASAKI, Kiyomi KATSUYAMA, Tatsuyuki SAITO, Tsuyoshi TAMARU, Hizuru YAMAGUCHI
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Patent number: 8866202Abstract: A method for reducing capacitances between semiconductor devices is provided. A plurality of contact structures is formed in a dielectric layer. A mask is formed to cover the contact structures wherein the mask has mask features for exposing parts of the dielectric layer wherein the mask features have widths. The widths of the mask features are shrunk with a sidewall deposition. Gaps are etched into the dielectric layer through the sidewall deposition. The gaps are closed to form pockets in the gaps.Type: GrantFiled: April 26, 2012Date of Patent: October 21, 2014Assignee: Lam Research CorporationInventors: S. M. Reza Sadjadi, Zhi-Song Huang
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Patent number: 8866257Abstract: An electrically reprogrammable fuse comprising an interconnect disposed in a dielectric material, a sensing wire disposed at a first end of the interconnect, a first programming wire disposed at a second end of the interconnect, and a second programming wire disposed at a second end of the interconnect, wherein the fuse is operative to form a surface void at the interface between the interconnect and the sensing wire when a first directional electron current is applied from the first programming wire through the interconnect to the second programming wire, and wherein, the fuse is further operative to heal the surface void between the interconnect and the sensing wire when a second directional electron current is applied from the second programming wire through the interconnect to the first programming wire.Type: GrantFiled: February 26, 2014Date of Patent: October 21, 2014Assignee: International Business Machines CorporationInventors: Kaushik Chanda, Lynne M. Gignac, Wai-Kin Ll, Ping-Chaun Wang
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Publication number: 20140306346Abstract: The semiconductor device has insulating films 40, 42 formed over a substrate 10; an interconnection 58 buried in at least a surface side of the insulating films 40, 42; insulating films 60, 62 formed on the insulating film 42 and including a hole-shaped via-hole 60 and a groove-shaped via-hole 66a having a pattern bent at a right angle; and buried conductors 70, 72a buried in the hole-shaped via-hole 60 and the groove-shaped via-hole 66a. A groove-shaped via-hole 66a is formed to have a width which is smaller than a width of the hole-shaped via-hole 66. Defective filling of the buried conductor and the cracking of the inter-layer insulating film can be prevented. Steps on the conductor plug can be reduced. Accordingly, defective contact with the upper interconnection layer and the problems taking place in forming films can be prevented.Type: ApplicationFiled: June 20, 2014Publication date: October 16, 2014Inventor: Kenichi Watanabe
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Patent number: 8860135Abstract: A method for filling a trench with a metal layer is disclosed. A deposition apparatus having a plurality of supporting pins is provided. A substrate and a dielectric layer disposed thereon are provided. The dielectric layer has a trench. A first deposition process is performed immediately after the substrate is placed on the supporting pins to form a metal layer in the trench, wherein during the first deposition process a temperature of the substrate is gradually increased to reach a predetermined temperature. When the temperature of the substrate reaches the predetermined temperature, a second deposition process is performed to completely fill the trench with the metal layer. The present invention further provides a semiconductor device having an aluminum layer with a reflectivity greater than 1, wherein the semiconductor device is formed by using the method.Type: GrantFiled: February 21, 2012Date of Patent: October 14, 2014Assignee: United Microelectronics Corp.Inventors: Chi-Mao Hsu, Hsin-Fu Huang, Min-Chuan Tsai, Chien-Hao Chen, Wei-Yu Chen, Chin-Fu Lin, Jing-Gang Li, Min-Hsien Chen, Jian-Hong Su
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Patent number: 8860222Abstract: Semiconductor package device, such as wafer-level package semiconductor devices, are described that have pillars for providing electrical interconnectivity. In an implementation, the wafer-level package devices include an integrated circuit chip having at least one pillar formed over the integrated circuit chip. The pillar is configured to provide electrical interconnectivity with the integrated circuit chip. The wafer-level package device also includes an encapsulation structure configured to support the pillar.Type: GrantFiled: November 30, 2012Date of Patent: October 14, 2014Assignee: Maxim Integrated Products, Inc.Inventors: Viren Khandekar, Karthik Thambidurai, Ahmad Ashrafzadeh, Amit Kelkar, Hien D. Nguyen
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Patent number: 8859420Abstract: A method of fabricating an interconnect element may include fabricating a metal layer that overlies a carrier layer and that includes a plurality of metal traces; providing a dielectric element to overlie the metal layer and the carrier layer; providing a plurality of metal posts; and removing the carrier layer to expose the first major surface of the dielectric element and the outer surfaces of the plurality of metal traces.Type: GrantFiled: April 12, 2011Date of Patent: October 14, 2014Assignee: Invensas CorporationInventors: Kimitaka Endo, Norihito Masuda, Tomokazu Shimada
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Patent number: 8859415Abstract: A method of forming wiring of a semiconductor device includes: forming an insulating resin on a main surface of a substrate such that an opening portion defining a wiring pattern is provided in the insulating resin; forming a first wiring layer made of a first metal on a bottom surface and side surfaces of the opening portion surrounding and a surface of the insulating resin opposite to the main surface of the substrate, the first wiring layer having a bottom portion formed on the bottom surface of the opening portion and side portions formed on the side surfaces, the bottom portion having a thickness greater than a thickness of at least one of the side portions; and cutting the insulating resin and the first wiring layer such that the insulating resin and the first wiring layer are exposed.Type: GrantFiled: March 7, 2012Date of Patent: October 14, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Tajima, Akira Tojo
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Patent number: 8860223Abstract: A resistive random access memory may include a memory array and a periphery around the memory array. Decoders in the periphery may be coupled to address lines in the array by forming a metallization in the periphery and the array at the same time using the same metal deposition. The metallization may form row lines in the array.Type: GrantFiled: July 15, 2010Date of Patent: October 14, 2014Assignee: Micron Technology, Inc.Inventors: Cristina Casellato, Carmela Cupeta, Michele Magistretti, Fabio Pellizzer, Roberto Somaschini
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Patent number: 8853861Abstract: The semiconductor device has insulating films 40, 42 formed over a substrate 10; an interconnection 58 buried in at least a surface side of the insulating films 40, 42; insulating films 60, 62 formed on the insulating film 42 and including a hole-shaped via-hole 60 and a groove-shaped via-hole 66a having a pattern bent at a right angle; and buried conductors 70, 72a buried in the hole-shaped via-hole 60 and the groove-shaped via-hole 66a. A groove-shaped via-hole 66a is formed to have a width which is smaller than a width of the hole-shaped via-hole 66. Defective filling of the buried conductor and the cracking of the inter-layer insulating film can be prevented. Steps on the conductor plug can be reduced. Accordingly, defective contact with the upper interconnection layer and the problems taking place in forming films can be prevented.Type: GrantFiled: February 28, 2013Date of Patent: October 7, 2014Assignee: Fujitsu Semiconductor LimitedInventor: Kenichi Watanabe
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Patent number: 8853830Abstract: A method of manufacturing a semiconductor substrate structure for use in a semiconductor substrate stack system is presented. The method includes a semiconductor substrate which includes a front-face, a backside, a bulk layer, an interconnect layer that includes a plurality of inter-metal dielectric layers sandwiched between conductive layers, a contact layer that is between the bulk layer and the interconnect layer, and a TSV structure commencing between the bulk layer and the contact layer and terminating at the backside of the substrate. The TSV structure is electrically coupled to the interconnect layer and the TSV structure is electrically coupled to a bonding pad on the backside.Type: GrantFiled: July 23, 2008Date of Patent: October 7, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hung-Pin Chang, Weng-Jin Wu, Wen-Chih Chiou, Chen-Hua Yu
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Patent number: 8852961Abstract: Ferroelectric capacitors (42) are formed over a semiconductor substrate (10), then, a barrier film (46) directly covering the ferroelectric capacitors (42) is formed. Thereafter, wirings (56a etc.) connected to the ferroelectric capacitors (42) are formed. Further, a barrier film (58) is formed at a position higher than the wirings (56a etc.). In forming the barrier film (46), a film stack is formed, the film stack including at least two kinds of diffusion preventive films (46a and 46b) having different components and preventing diffusion of hydrogen or water.Type: GrantFiled: May 10, 2012Date of Patent: October 7, 2014Assignee: Fujitsu Semiconductor LimitedInventor: Wensheng Wang
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Patent number: 8853858Abstract: An integrated circuit structure including reflective metal pads is provided. The integrated circuit structure includes a semiconductor substrate; a first low-k dielectric layer overlying the semiconductor substrate, wherein the first low-k dielectric layer is a top low-k dielectric layer; a second low-k dielectric layer immediately underlying the first low-k dielectric layer; and a reflective metal pad in the second low-k dielectric layer.Type: GrantFiled: August 9, 2012Date of Patent: October 7, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Joung-Wei Liou, Keng-Chu Lin, Shwang-Ming Jeng
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Patent number: 8847395Abstract: A microelectronic device, including: a substrate and a plurality of metal interconnection levels stacked on the substrate; a first metal line of a given metal interconnection level; a second metal line of another metal interconnection level located above the given metal interconnection level, the first and second lines are interconnected via at least one semiconductor connection element extending in a direction forming a nonzero angle with the first metal lines and the second metal line; and a gate electrode capable of controlling conduction of the semiconductor connection element.Type: GrantFiled: July 5, 2011Date of Patent: September 30, 2014Assignee: Commissariat à l'énergie atomique et aux énergies alternativesInventors: Thomas Ernst, Paul-Henry Morel, Sylvain Maitrejean
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Patent number: 8847403Abstract: The semiconductor device has insulating films 40, 42 formed over a substrate 10; an interconnection 58 buried in at least a surface side of the insulating films 40, 42; insulating films 60, 62 formed on the insulating film 42 and including a hole-shaped via-hole 60 and a groove-shaped via-hole 66a having a pattern bent at a right angle; and buried conductors 70, 72a buried in the hole-shaped via-hole 60 and the groove-shaped via-hole 66a. A groove-shaped via-hole 66a is formed to have a width which is smaller than a width of the hole-shaped via-hole 66. Defective filling of the buried conductor and the cracking of the inter-layer insulating film can be prevented. Steps on the conductor plug can be reduced. Accordingly, defective contact with the upper interconnection layer and the problems taking place in forming films can be prevented.Type: GrantFiled: February 28, 2013Date of Patent: September 30, 2014Assignee: Fujitsu Semiconductor LimitedInventor: Kenichi Watanabe
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Patent number: 8841209Abstract: A method for forming coreless flip chip ball grid array (FCBGA) substrates comprising the steps of sequentially depositing a pair of laminates, each having a plurality of insulated metallization layers simultaneously respectively on each side of a temporary carrier substrate, and then removing the temporary carrier to separate the pair of laminates, so that each laminate has an outer ball grid metal pad array, and during the depositing of the pair of laminates on the carrier substrate, further depositing a supporting layer of dielectric material enclosing the metal pad array, wherein said supporting layers of dielectric material provides structural support for each of the laminates after the separation.Type: GrantFiled: August 18, 2011Date of Patent: September 23, 2014Assignee: International Business Machines CorporationInventors: Sylvie Allard, Jean Audet, Kevin Arthur Dore, Sylvain Pharand, David John Russell
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Patent number: 8841771Abstract: A semiconductor device with a transistor region has a first conductor pattern formed within a multilayer interconnect structure positioned under a signal line and above the transistor region. The first conductor pattern is coupled to ground or a power supply and overlaps the transistor region. The signal line overlaps the first conductor pattern.Type: GrantFiled: November 8, 2013Date of Patent: September 23, 2014Assignee: Renesas Electronics CorporationInventors: Masayuki Furumiya, Yasutaka Nakashiba, Akira Tanabe
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Patent number: 8841774Abstract: A first wiring (1) has a bending portion (2), a first wiring region (1a) extending from the bending portion (2) in the X direction, and a second wiring region (1b) extending from the bending portion (2) in the Y direction. A via (3) is formed under the wiring (1). The via (3) is formed so as not to overlap with a region of the bending portion (2) in the first wiring region (1a). The length of the via (3) in the X direction (x) is longer than the length thereof in the Y direction (y) and both ends of the via (3) in the Y direction overlap with both ends of the first wiring region (1a) in the Y direction.Type: GrantFiled: March 7, 2013Date of Patent: September 23, 2014Assignee: Panasonic CorporationInventors: Miwa Ichiryu, Hiroyuki Uehara, Hidetoshi Nishimura