With Devices Vertically Spaced In Different Layers Of Semiconductor Material (e.g., "3-dimensional" Integrated Circuit) Patents (Class 257/278)
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Patent number: 8120040Abstract: A device for optical communication including a substrate for mounting an IC chip, and a multilayered printed circuit board. An optical path for transmitting optical signal which penetrates the substrate for mounting an IC chip is formed in the substrate for mounting an IC chip.Type: GrantFiled: May 24, 2010Date of Patent: February 21, 2012Assignee: Ibiden Co., Ltd.Inventors: Motoo Asai, Hiroaki Kodama, Toyoaki Tanaka
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Patent number: 8110834Abstract: A three-dimensional semiconductor device includes a vertical channel pattern on the substrate, a plurality of cell gate patterns and a select gate pattern stacked on the substrate along the sidewall of the vertical channel pattern, a charge storage pattern between the vertical channel pattern and the cell gate pattern and a select gate pattern between the vertical channel pattern and the select gate pattern. The select gate pattern has a different work function from the cell gate pattern.Type: GrantFiled: January 4, 2010Date of Patent: February 7, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jinho Kim, Sunghoi Hur, Hansoo Kim, Younggoan Jang, Sunil Shim
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Patent number: 8089108Abstract: Memory cells are constructed from double-gated four terminal transistors having independent gate control. DRAM cells may use one, two or three transistors. Single transistor cells are constructed either with or without a bit storage capacitor, and both NAND- and NOR-type Non-Volatile NVRAM cells, as well as Ferroelectric FeRAM cells, are described. For all cells, top gates provide conventional access while independent bottom gates provide control to optimize memory retention for given speed and power parameters as well as to accommodate hardening against radiation. In a single transistor cell without a capacitor, use of the bottom gate allows packing to a density approaching 2 F2. The memory cells are compatible with SOI logic circuitry for use as embedded RAM in SOC applications.Type: GrantFiled: February 28, 2011Date of Patent: January 3, 2012Assignee: American Semiconductor, Inc.Inventors: Dale G. Wilson, Douglas R. Hackler, Sr.
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Patent number: 8053819Abstract: An IC structure having reduced power loss and/or noise includes two or more active semiconductor regions stacked in a substantially vertical dimension, each active semiconductor region including an active layer. The IC structure further includes two or more voltage supply planes, each of the voltage supply planes corresponding to a respective one of the active layers.Type: GrantFiled: May 15, 2008Date of Patent: November 8, 2011Assignee: International Business Machines CorporationInventors: Kerry Bernstein, Paul W. Coteus, Philip George Emma, Allan Mark Hartstein, Stephen V. Kosonocky, Ruchir Puri, Mark B. Ritter
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Patent number: 8039900Abstract: The stacked semiconductor device includes a semiconductor substrate, a multi-layered insulation layer pattern having at least two insulation layer patterns and an opening, an active layer pattern formed on each of the insulation layer patterns, a first plug including single crystalline silicon-germanium, a second plug including single crystalline silicon, and a wiring electrically connected to the first plug and sufficiently filling up the opening. The insulation layer patterns are vertically stacked on the semiconductor substrate and the opening exposes an upper face of the semiconductor substrate. A side portion of the active layer pattern is exposed by the opening. The first plug is formed on the upper face of the semiconductor substrate to partially fill the opening. The second plug is partially formed on the first plug, and has substantially the same interface as that of the first plug.Type: GrantFiled: June 28, 2007Date of Patent: October 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Kyoung-Seok Kim, Kong-Soo Lee, Sang-Jin Park, Sung-Kwan Kang, Ko-Eun Lee
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Patent number: 7982250Abstract: A semiconductor device is demonstrated in which a plurality of field-effect transistors is stacked with an interlayer insulating layer interposed therebetween over a substrate having an insulating surface. Each of the plurality of filed-effect transistors has a semiconductor layer which is prepared by a process including separation of the semiconductor layer from a semiconductor substrate followed by bonding thereof over the substrate. Each of the plurality of field-effect transistors is covered with an insulating film which provides distortion of the semiconductor layer. Furthermore, the crystal axis of the semiconductor layer, which is parallel to the crystal plane thereof, is set to a channel length direction of the semiconductor layer, which enables production of the semiconductor device with high performance and low power consumption having an SOI structure.Type: GrantFiled: September 12, 2008Date of Patent: July 19, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Atsuo Isobe, Hiromichi Godo, Yutaka Okazaki
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Patent number: 7964870Abstract: To provide a display device capable of reliably forming a resistive element formed on a substrate including pixels. A display device including at least a thin-film transistor and a resistive element on a substrate has a gate electrode, an insulating film, a semiconductor layer and a conductive layer which are sequentially stacked on the substrate, in which the resistive element is formed by using the semiconductor layer formed between end portions of wiring made of the conductive layer as a resistive body, and at least one conductive layer apart from the end portions is formed on the semiconductor layer between the end portions of wiring.Type: GrantFiled: June 2, 2008Date of Patent: June 21, 2011Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tsuyoshi Uchida, Hiroshi Katayanagi
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Patent number: 7956391Abstract: Various integrated circuit devices, in particular a junction field-effect transistor (JFET), are formed inside an isolation structure which includes a floor isolation region and a trench extending from the surface of the substrate to the floor isolation region. The trench may be filled with a dielectric material or may have a conductive material in a central portion with a dielectric layer lining the walls of the trench. Various techniques for terminating the isolation structure by extending the floor isolation region beyond the trench, using a guard ring, and a forming a drift region are described.Type: GrantFiled: February 27, 2008Date of Patent: June 7, 2011Assignee: Advanced Analogic Technologies, Inc.Inventors: Donald R. Disney, Richard K. Williams
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Patent number: 7898009Abstract: Memory cells are constructed from double-gated four terminal transistors having independent gate control. DRAM cells may use one, two or three transistors. Single transistor cells are constructed either with or without a bit storage capacitor, and both NAND- and NOR-type Non-Volatile NVRAM cells, as well as Ferroelectric FeRAM cells, are described. For all cells, top gates provide conventional access while independent bottom gates provide control to optimize memory retention for given speed and power parameters as well as to accommodate hardening against radiation. In a single transistor cell without a capacitor, use of the bottom gate allows packing to a density approaching 2 F2. Using a ferroelectric material as the gate insulator produces a single-transistor FeRAM cell that overcomes the industry-wide Write Disturb problem. The memory cells are compatible with SOI logic circuitry for use as embedded RAM in SOC applications.Type: GrantFiled: February 22, 2007Date of Patent: March 1, 2011Assignee: American Semiconductor, Inc.Inventors: Dale G. Wilson, Kelly James DeGregorio, Stephen A. Parke, Douglas R. Hackler, Sr.
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Patent number: 7892904Abstract: A semiconductor device with an amorphous silicon (a-Si) metal-oxide-nitride-oxide-silicon (MONOS) or metal-aluminum oxide-silicon (MAS) memory cell structure with one-time programmable (OTP) function. The device includes a substrate, a first dielectric layer overlying the substrate, and one or more source or drain regions embedded in the first dielectric layer with a co-planar surface of n-type a-Si and the first dielectric layer. Additionally, the device includes a p-i-n a-Si diode junction. The device further includes a second dielectric layer on the a-Si p-i-n diode junction and a metal control gate overlying the second dielectric layer. Optionally the device with OTP function includes a conductive path formed between n-type a-Si layer and the metal control gate. A method of making the same memory cell structure is provided and can be repeated to integrate the structure three-dimensionally.Type: GrantFiled: October 27, 2008Date of Patent: February 22, 2011Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventor: Mieno Fumitake
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Patent number: 7884390Abstract: A vertically conducting semiconductor device includes a semiconductor substrate having a topside surface and a backside surface. The semiconductor substrate serves as a terminal of the vertically conducting device for biasing the vertically conducting device during operation. An epitaxial layer extends over the topside surface of the semiconductor substrate but terminates prior to reaching an edge of the semiconductor substrate so as to form a recessed region along a periphery of the semiconductor substrate. An interconnect layer extends into the recessed region but terminates prior to reaching an edge of the semiconductor substrate. The interconnect layer electrically contacts the topside surface of the semiconductor substrate in the recessed region to thereby provide a topside contact to the semiconductor substrate.Type: GrantFiled: July 7, 2008Date of Patent: February 8, 2011Assignee: Fairchild Semiconductor CorporationInventors: John T. Andrews, Hamza Yilmaz, Bruce Marchant, Ihsiu Ho
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Patent number: 7834402Abstract: To strengthen tolerance to radiation. Source and back gate of P-channel transistor P1 are connected to power supply. Gate of the P-channel transistor P1 is connected to input terminal IN. Gate of N1 is connected to IN. Drain of N1 is connected to OUT. Cathode of diode D1 is connected to power supply, anode of D1 being connected to OUT. Cathode of diode D2 is connected to OUT, anode of D2 being grounded. When seen from a direction perpendicular to a substrate on which an inverter circuit is formed, a projection plane of a region of a p+ diffusion layer of D1 includes a projection plane of a region of an n+ diffusion layer of N, and a projection plane of a region of an n+ diffusion layer of the diode D2 includes a projection plane of a region of a p+ diffusion layer of P1.Type: GrantFiled: May 14, 2007Date of Patent: November 16, 2010Assignee: NEC Electronics CorporationInventor: Hideyuki Yoneda
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Patent number: 7825446Abstract: There is provided a semiconductor device including, a semiconductor substrate having a circuit forming region and a peripheral region, a base insulating film formed over the semiconductor substrate, a capacitor formed of a lower electrode, a capacitor dielectric film made of a ferroelectric material, and an upper electrode in this order over the base insulating film in the circuit forming region, an uppermost interlayer insulating film formed over the capacitor, a seal ring formed over the semiconductor substrate in the peripheral region, the seal ring having a height that reaches at least the upper surface of the interlayer insulating film, and surrounding the circuit forming region, a block film formed over the seal ring and over the interlayer insulating film in the circumference of the seal ring, and an electrode conductor pattern which is formed over the interlayer insulating film in the peripheral region, the electrode conductor pattern having an electrode pad, and having a cross-section exposed to a diType: GrantFiled: July 17, 2008Date of Patent: November 2, 2010Assignee: Fujitsu Semiconductor LimitedInventors: Yasufumi Takahashi, Kenichiro Kajio
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Patent number: 7795651Abstract: A one transistor DRAM device includes: a substrate with an insulating layer, a first semiconductor layer provided on the insulating layer and including a first source region and a first region which are in contact with the insulating layer and a first floating body between the first source region and the first drain region, a first gate pattern to cover the first floating body, a first interlayer dielectric to cover the first gate pattern, a second semiconductor layer provided on the first interlayer dielectric and including a second source region and a second drain region which are in contact with the first interlayer dielectric and a second floating body between the second source region and the second drain region, and a second gate pattern to cover the second floating body.Type: GrantFiled: February 1, 2008Date of Patent: September 14, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hun Jeong, Ki-Nam Kim, Soon-Moon Jung, Jae-Hoon Jang
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Patent number: 7777307Abstract: A method for manufacturing a high-frequency signal transmission circuit includes the steps of forming a groove to surround a first region on a semiconductor substrate, filling the groove with a stopper material, forming a high-frequency transmission line on the semiconductor substrate so that the transmission line extends over the first region, and etching the first region of the semiconductor substrate using the stopper material as an etching stopper to form a recess in the first region.Type: GrantFiled: April 24, 2006Date of Patent: August 17, 2010Assignee: Sony CorporationInventor: KueiSung Chang
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Patent number: 7763915Abstract: The three-dimensional integrated CMOS circuit is formed in a hybrid substrate. n-MOS type transistors are formed, at a bottom level, in a first semi-conducting layer of silicon having a (100) orientation, which layer may be tension strained. p-MOS transistors are formed, at a top level, in a preferably monocrystalline and compression strained second semi-conducting layer of germanium having a (110) orientation. The second semi-conducting layer is transferred onto a first block in which the n-MOS transistors were previously formed, and the p-MOS transistors are then formed.Type: GrantFiled: January 18, 2007Date of Patent: July 27, 2010Assignee: Commissariat a l'Energie AtomiqueInventors: Jean-Pierre Joly, Olivier Faynot, Laurent Clavelier
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Publication number: 20100148226Abstract: In accordance with the present techniques, there is provided a JFET device structures and methods for fabricating the same. Specifically, there is provided a transistor including a semiconductor substrate having a source and a drain. The transistor also includes a doped channel formed in the semiconductor substrate between the source and the drain, the channel configured to pass current between the source and the drain. Additionally, the transistor has a gate comprising a semiconductor material formed over the channel and dielectric spacers on each side of the gate. The source and the drain are spatially separated from the gate so that the gate is not over the drain and source.Type: ApplicationFiled: December 11, 2008Publication date: June 17, 2010Applicant: MICRON TECHNOLOGY, INC.Inventor: Chandra Mouli
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Patent number: 7723764Abstract: A method of repairing a defective one of devices mounted on substrate is provided. Devices are arrayed on a substrate and electrically connected to wiring lines connected to a drive circuit, to be thus mounted on the substrate. The devices mounted on the substrate are then subjected to an emission test. If a defective device is detected in this test, a repair device is mounted at a position corresponding to a position of the defective device. At this time, after wiring lines connected to the defective device are cut off, the repair device is electrically connected to portions of the wiring lines, the portions of the wiring lines being located at positions nearer to the drive circuit side than the cut-off positions of the wiring lines.Type: GrantFiled: May 25, 2006Date of Patent: May 25, 2010Assignee: Sony CorporationInventors: Toyoharu Oohata, Toshiaki Iwafuchi, Hisashi Ohba
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Patent number: 7671389Abstract: An SRAM device includes a substrate having at least one cell active region in a cell array region and a plurality of peripheral active regions in a peripheral circuit region, a plurality of stacked cell gate patterns in the cell array region, and a plurality of peripheral gate patterns disposed on the peripheral active regions in the peripheral circuit region. Metal silicide layers are disposed on at least one portion of the peripheral gate patterns and on the semiconductor substrate near the peripheral gate patterns, and buried layer patterns are disposed on the peripheral gate patterns and on at least a portion of the metal silicide layers and the portions of the semiconductor substrate near the peripheral gate patterns. An etch stop layer and a protective interlayer-insulating layer are disposed around the peripheral gate patterns and on the cell array region. Methods of forming an SRAM device are also disclosed.Type: GrantFiled: March 21, 2006Date of Patent: March 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hoon Jang, Soon-Moon Jung, Young-Seop Rah, Han-Byung Park
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Patent number: 7586135Abstract: Semiconductor devices including a plurality of semiconductor layers. A plurality of transistors are on each of the semiconductor layers. The transistors include gate lines and have source regions and drain regions formed between the gate lines in the respective semiconductor layer including the transistors. The semiconductor devices further include a plurality of local source line structures. Each of the local source line structures is positioned on a corresponding one of the semiconductor layers and connects a plurality of the source regions formed on the corresponding one of the semiconductor layers. Methods of forming the semiconductor devices are also provided.Type: GrantFiled: November 30, 2006Date of Patent: September 8, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Wook-Hyun Kwon, Ki-Nam Kim, Chan-Kwang Park, Soon-Moon Jung, Sang-Pil Sim
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Patent number: 7525137Abstract: There is provided a monolithic three dimensional TFT mask ROM array. The array includes a plurality of device levels. Each of the plurality of device levels contains a first set of enabled TFTs and a second set of partially or totally disabled TFTs.Type: GrantFiled: July 12, 2006Date of Patent: April 28, 2009Assignee: Sandisk CorporationInventors: Andrew J. Walker, Christopher Petti
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Patent number: 7479673Abstract: Semiconductor integrated circuits that include thin film transistors (TFTs) and methods of fabricating such semiconductor integrated circuits are provided. The semiconductor integrated circuits may include a bulk transistor formed at a semiconductor substrate and a first interlayer insulating layer on the bulk transistor. A lower TFT may be on the first interlayer insulating layer, and a second interlayer insulating layer may be on the lower TFT. An upper TFT may be on the second interlayer insulating layer, and a third interlayer insulating layer may be on the upper TFT. A first impurity region of the bulk transistor, a first impurity region of the lower TFT, and a first impurity region of the upper TFT may be electrically connected to one another through a node plug that penetrates the first, second and third interlayer insulating layers.Type: GrantFiled: January 11, 2005Date of Patent: January 20, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hoon Jang, Soon-Moon Jung, Kun-Ho Kwak, Byung-Jun Hwang
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Patent number: 7449733Abstract: A semiconductor device includes a semiconductor substrate, a channel region formed above the semiconductor substrate, a first gate electrode formed above the channel region via a first gate insulating film, a second gate electrode formed below the channel region via a second gate insulating film to face the first gate electrode, a first insulating film covering side surfaces of the second gate electrode, a second insulating film covering a bottom surface of the second gate electrode, and a semiconductor layer which has an upper surface positioned above an upper surface of the first gate insulating film and side surfaces facing side surfaces of the first gate electrode, and in which a source region and drain region are formed. The side surfaces of the second gate electrode are aligned with or positioned inside the side surfaces of the semiconductor layer.Type: GrantFiled: January 30, 2006Date of Patent: November 11, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Inaba, Tetsu Morooka
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Patent number: 7423304Abstract: A die is formed with different and optimized critical dimensions in different device levels and areas of those device levels using photolithography and etch techniques. One aspect of the invention provides for a memory array formed above a substrate, with driver circuitry formed in the substrate. A level of the memory array consists of, for example, parallel rails and a fan-out region. It is desirable to maximize density of the rails and minimize cost of lithography for the entire memory array. This can be achieved by forming the rails at a tighter pitch than the CMOS circuitry beneath it, allowing cheaper lithography tools to be used when forming the CMOS, and similarly by optimizing lithography and etch techniques for a device level to produce a tight pitch in the rails, and a more relaxed pitch in the less-critical fan-out region.Type: GrantFiled: December 5, 2003Date of Patent: September 9, 2008Assignee: Sandisck 3D LLCInventors: James M. Cleeves, Roy E. Scheuerlein
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Publication number: 20080203445Abstract: An IC structure having reduced power loss and/or noise includes two or more active semiconductor regions stacked in a substantially vertical dimension, each active semiconductor region including an active layer. The IC structure further includes two or more voltage supply planes, each of the voltage supply planes corresponding to a respective one of the active layers.Type: ApplicationFiled: May 15, 2008Publication date: August 28, 2008Applicant: International Business Machines CorporationInventors: Kerry Bernstein, Paul W. Coteus, Philip George Emma, Allan Mark Hartstein, Stephen V. Kosonocky, Ruchir Puri, Mark B. Ritter
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Patent number: 7402854Abstract: An IC structure having reduced power loss and/or noise includes two or more active semiconductor regions stacked in a substantially vertical dimension, each active semiconductor region including an active layer. The IC structure further includes two or more voltage supply planes, each of the voltage supply planes corresponding to a respective one of the active layers.Type: GrantFiled: July 31, 2006Date of Patent: July 22, 2008Assignee: International Business Machines CorporationInventors: Kerry Bernstein, Paul W. Coteus, Philip George Emma, Allan Mark Hartstein, Stephen V. Kosonocky, Ruchir Puri, Mark B. Ritter
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Patent number: 7394128Abstract: A semiconductor memory (26) having a plurality of memory cells (25), the semiconductor memory (26) having a substrate (1), at least one wordline (2) and first (3) and second lines (4). Each memory cell (25) of the plurality of memory cells (25) includes a fin (15) of semiconductor material, the fin (15) having a top surface (5), first (6) and second (7) opposing sidewalls and first (8) and second (9) opposing ends. The fin (15) extends along a first direction (X). Each memory cell (25) also includes a charge-trapping layer (11) disposed on the first (6) and second (7) sidewalls of said fin (15), a patterned first insulating layer (10) disposed on the top surface (5) of the fin (15), wherein the first insulating layer (10) abuts the top surface (5) of the fin (15) and the charge-trapping layer (11). Each memory cell (25) also includes a first doping region (12) coupled to the first end (8) of said fin (15) and a second doping region (13) coupled to the second end (9) of the fin (15).Type: GrantFiled: December 15, 2005Date of Patent: July 1, 2008Assignee: Infineon Technologies AGInventor: Lars Bach
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Patent number: 7388277Abstract: A process is described for semiconductor device integration at chip level or wafer level, in which vertical connections are formed through a substrate. A metallized feature is formed in the top surface of a substrate, and a handling plate is attached to the substrate. The substrate is then thinned at the bottom surface thereof to expose the bottom of the feature, to form a conducting through-via. The substrate may comprise a chip having a device (e.g. DRAM) fabricated therein. The process therefore permits vertical integration with a second chip (e.g. a PE chip). The plate may be a wafer attached to the substrate using a vertical stud/via interconnection. The substrate and plate may each have devices fabricated therein, so that the process provides vertical wafer-level integration of the devices.Type: GrantFiled: January 12, 2005Date of Patent: June 17, 2008Assignee: International Business Machines CorporationInventors: H. Bernhard Pogge, Roy Yu, Chandrika Prasad, Chandrasekhar Narayan
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Patent number: 7369436Abstract: Memory devices, arrays, and strings are included that facilitate the use of vertical floating gate memory cells in NAND architecture memory strings, arrays, and devices. NAND Flash memory strings, arrays, and devices, include vertical Flash memory cells to form NAND architecture memory cell strings and memory arrays. These vertical memory cell NAND architecture strings allow for an improved high density memory devices or arrays that can take advantage of the feature sizes semiconductor fabrication processes are generally capable of and still allow for appropriate device sizing for operational considerations.Type: GrantFiled: July 27, 2005Date of Patent: May 6, 2008Assignee: Micron Technology, Inc.Inventor: Leonard Forbes
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Publication number: 20080023731Abstract: An IC structure having reduced power loss and/or noise includes two or more active semiconductor regions stacked in a substantially vertical dimension, each active semiconductor region including an active layer. The IC structure further includes two or more voltage supply planes, each of the voltage supply planes corresponding to a respective one of the active layers.Type: ApplicationFiled: July 31, 2006Publication date: January 31, 2008Applicant: International Business Machines CorporationInventors: Kerry Bernstein, Paul W. Coteus, Philip George Emma, Allan Mark Hartstein, Stephen V. Kosonocky, Ruchir Puri, Mark B. Ritter
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Patent number: 7312487Abstract: A three dimensional (3D) integrated circuit (IC), 3D IC chip and method of fabricating a 3D IC chip. The chip includes multiple layers of circuits, e.g., silicon insulator (SOI) CMOS IC layers, each including circuit elements. The layers may be formed in parallel and one layer attached to another to form a laminated 3D chip.Type: GrantFiled: August 16, 2004Date of Patent: December 25, 2007Assignee: International Business Machines CorporationInventors: Syed M. Alam, Ibrahim M. Elfadel, Kathryn W. Guarini, Meikei Ieong, Prabhakar N. Kudva, David S. Kung, Mark A. Lavin, Arifur Rahman
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Patent number: 7298638Abstract: A high density vertical gain cell is realized for memory operation. The gain cell includes a vertical MOS transistor used as a sense transistor having a floating body between a drain region and a source region, and a second vertical MOS transistor merged with the sense transistor. Addressing the second vertical MOS transistor provides a means for changing a potential of the floating body of the sense transistor. The vertical gain cell can be used in a memory array with a read data/bit line and a read data word line coupled to the sense transistor, and with a write data/bit line and a write data word line coupled to the second transistor of the vertical gain cell.Type: GrantFiled: August 31, 2004Date of Patent: November 20, 2007Assignee: Micron Technology, Inc.Inventor: Leonard Forbes
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Patent number: 7288821Abstract: A method and device for increasing pFET performance without degradation of nFET performance. The method includes forming a first structure on a substrate using a first plane and direction and forming a second structure on the substrate using a second plane and direction. In use, the device includes a nFET stack on a substrate using a first plane and direction, e.g., (100)<110> and a pFET stack on the substrate using a second plane and direction, e.g., (111)/<112>. An isolation region within the substrate is provided between the nFET stack and the pFET stack.Type: GrantFiled: April 8, 2005Date of Patent: October 30, 2007Assignee: International Business Machines CorporationInventor: Oh-Jung Kwon
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Patent number: 7250646Abstract: There is provided a monolithic three dimensional TFT mask ROM array. The array includes a plurality of device levels. Each of the plurality of device levels contains a first set of enabled TFTs and a second set of partially or totally disabled TFTs.Type: GrantFiled: October 18, 2004Date of Patent: July 31, 2007Assignee: Sandisk 3D, LLC.Inventors: Andrew J. Walker, Christopher Petti
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Publication number: 20070170471Abstract: The three-dimensional integrated CMOS circuit is formed in a hybrid substrate. n-MOS type transistors are formed, at a bottom level, in a first semi-conducting layer of silicon having a (100) orientation, which layer may be tension strained. p-MOS transistors are formed, at a top level, in a preferably monocrystalline and compression strained second semi-conducting layer of germanium having a (110) orientation. The second semi-conducting layer is transferred onto a first block in which the n-MOS transistors were previously formed, and the p-MOS transistors are then formed.Type: ApplicationFiled: January 18, 2007Publication date: July 26, 2007Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Jean-Pierre Joly, Olivier Faynot, Laurent Clavelier
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Patent number: 7244977Abstract: A semiconductor memory device includes a vertical MISFET having a source region, a channel forming region, a drain region, and a gate electrode formed on a sidewall of the channel forming region via a gate insulating film. In manufacturing the semiconductor memory device, the vertical MISFET in which leakage current (off current) is less can be realized by: counter-doping boron of a conductivity type opposite to that of phosphorus diffused into a poly-crystalline silicon film (10) constituting the channel forming region from an n type poly-crystalline silicon film (7) constituting the source region of the vertical MISFET, and the above-mentioned poly-crystalline silicon film (10); and reducing an effective impurity concentration in the poly-crystalline silicon film (10).Type: GrantFiled: October 10, 2002Date of Patent: July 17, 2007Assignee: Elpida Memory, Inc.Inventors: Tsuyoshi Tabata, Kazuo Nakazato, Hiroshi Kujirai, Masahiro Moniwa, Hideyuki Matsuoka, Teruo Kisu, legal representative, Haruko Kisu, legal representative, Satoru Haga, Teruaki Kisu, deceased
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Patent number: 7226871Abstract: A method for forming a silicon oxynitride layer, suitable to be used in the production of semiconductor devices, e.g. poly-silicon thin film transistors, is provided. A plasma surface treatment is performed over a substrate after a silicon nitride/silicon oxide layer has been formed on the substrate by a glow discharge system to transform the silicon nitride/silicon oxide layer into a silicon oxynitride layer. The semiconductor device may be completely manufactured in simplex equipment. Therefore, the production time and production cost are favorably reduced.Type: GrantFiled: October 19, 2005Date of Patent: June 5, 2007Assignee: Industrial Technology Research InstituteInventors: Lin-En Chou, Hung-Che Ting
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Patent number: 7217658Abstract: High density plasma chemical vapor deposition and etch back processes fill high aspect ratio gaps without liner erosion or further underlying structure attack. The characteristics of the deposition process are modulated such that the deposition component of the process initially dominates the sputter component of the process. For example, reactive gasses are introduced in a gradient fashion into the HDP reactor and introduction of bias power onto the substrate is delayed and gradually increased or reactor pressure is decreased. In the case of a multi-step etch enhanced gap fill process, the invention may involve gradually modulating deposition and etch components during transitions between process steps. By carefully controlling the transitions between process steps, including the introduction of reactive species into the HDP reactor and the application of source and bias power onto the substrate, structure erosion is prevented.Type: GrantFiled: September 7, 2004Date of Patent: May 15, 2007Assignee: Novellus Systems, Inc.Inventors: Atiye Bayman, George D. Papasouliotis, Yong Ling, Weijie Zhang, Vishal Gauri, Mayasari Lim
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Patent number: 7183197Abstract: A method and apparatus for depositing a material layer onto a substrate is described. The method includes delivering a mixture of precursors for the material layer into a process chamber and depositing the material layer on the substrate at low temperature. The material layer can be used as an encapsulating layer for various display applications which require low temperature deposition process due to thermal instability of underlying materials used. In one aspect, the encapsulating layer includes one or more material layers (multilayer) having one or more barrier layer materials and one or more low-dielectric constant materials. The encapsulating layer thus deposited provides reduced surface roughness, improved water-barrier performance, reduce thermal stress, good step coverage, and can be applied to many substrate types and many substrate sizes. Accordingly, the encapsulating layer thus deposited provides good device lifetime for various display devices, such as OLED devices.Type: GrantFiled: May 18, 2005Date of Patent: February 27, 2007Assignee: Applied Materials, Inc.Inventors: Tae Kyung Won, Sanjay Yadav
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Patent number: 7141856Abstract: Disclosed is a semiconductor fin construction useful in FinFET devices that incorporates an upper region and a lower region with wherein the upper region is formed with substantially vertical sidewalls and the lower region is formed with inclined sidewalls to produce a wider base portion. The disclosed semiconductor fin construction will also typically include a horizontal step region at the interface between the upper region and the lower region. Also disclosed are a series of methods of manufacturing semiconductor devices incorporating semiconductor fins having this dual construction and incorporating various combinations of insulating materials such as silicon dioxide and/or silicon nitride for forming shallow trench isolation (STI) structures between adjacent semiconductor fins.Type: GrantFiled: February 17, 2004Date of Patent: November 28, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Deok Hyung Lee, Byeong Chan Lee, In Soo Jung, Yong Hoon Son, Siyoung Choi, Taek Jung Kim
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Patent number: 7119385Abstract: A semiconductor apparatus includes a substrate, a buffer layer made of a monocrystal semiconductor material and formed on the substrate, a strained-Si layer formed on the buffer layer and having a lattice constant different from that of the buffer layer, a monocrystal insulating film formed on the strained-Si layer and made of a material having a rare earth structure with a lattice constant different from that of Si, and an electrode formed on the insulating film.Type: GrantFiled: August 9, 2004Date of Patent: October 10, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Koji Usuda, Shinichi Takagi
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Patent number: 7091604Abstract: A three-dimensional integrated circuit that provides reduced interconnect signal delay over known 2-dimensional systems. The three-dimensional integrated circuit also allows improved circuit cooling. The three-dimensional integrated circuit includes two or more electrically connected integrated circuits, separated by a cooling channel.Type: GrantFiled: June 4, 2004Date of Patent: August 15, 2006Assignee: Cabot Microelectronics CorporationInventors: Ian W. Wylie, Heinz H. Busta, David J. Schroeder, J. Scott Steckenrider, Yuchun Wang
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Patent number: 7030918Abstract: The present invention discloses a solid-state image pickup device in which a photoelectric conversion part having a photoelectric conversion region, and a logic circuit part are formed on a semiconductor substrate, and outputs a potential change caused by the charges generated in the photoelectric conversion region, and is provided with a light shielding layer that covers the logic circuit part, and a light shielding film that defines the region of beam incidence on the photoelectric conversion region, where the light shielding film is provided closer to the semiconductor substrate than the light shielding layer.Type: GrantFiled: June 27, 2000Date of Patent: April 18, 2006Assignee: NEC Electronics CorporationInventor: Yasutaka Nakashiba
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Patent number: 7030448Abstract: The structure of the nonvolatile memory includes a substrate having source/drain formed at unselected sides and source/drain with extension source/drain formed at other selected sides. A gate dielectric layer is formed on the substrate and a gate is formed on the gate dielectric layer. An isolation layer is formed along the surface of the gate. Spacers are formed attached on the sidewalls of the gate.Type: GrantFiled: January 12, 2004Date of Patent: April 18, 2006Assignee: Applied Intellectual Properties Co., Ltd.Inventor: Erik S. Jeng
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Patent number: 6956256Abstract: A high density vertical gain cell is realized for memory operation. The gain cell includes a vertical MOS transistor used as a sense transistor having a floating body between a drain region and a source region, and a second vertical MOS transistor merged with the sense transistor. Addressing the second vertical MOS transistor provides a means for changing a potential of the floating body of the sense transistor. The vertical gain cell can be used in a memory array with a read data/bit line and a read data word line coupled to the sense transistor, and with a write data/bit line and a write data word line coupled to the second transistor of the vertical gain cell.Type: GrantFiled: March 4, 2003Date of Patent: October 18, 2005Assignee: Micron Technology Inc.Inventor: Leonard Forbes
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Patent number: 6909129Abstract: A magnetic random access memory includes a plurality of multi-layered memory structures that are formed within a single memory unit and connected in one of a series and a parallel configuration. Each of the plurality of multi-layered memory structures has a resistance that varies based on a magnetization direction of a ferromagnetic layer. A transistor is operatively coupled to each of the plurality of multi-layered memory structures to perform one of a memory read and a memory write operation based on a conduction state of the transistor.Type: GrantFiled: November 4, 2002Date of Patent: June 21, 2005Assignee: Hynix Semiconductor Inc.Inventors: Chang Shuk Kim, Hyeok Je Jeong
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Patent number: 6844578Abstract: In a semiconductor integrated circuit device in which the number of the PMOS transistors to be used is relatively larger than that of the NMOS transistors and the PMOS transistor is used as an output driver, there is provided a semiconductor integrated circuit device having excellent stability, reliability, and performance while being inexpensive, and a manufacturing method thereof. In such a semiconductor integrated circuit device, complementary MOS circuits are composed of a P-type MOSFET (36) and an N-type MOSFET (37) which are a horizontal, an output driver is composed of a P-type vertical MOSFET (38) having a trench structure, and a conductivity type of the gate electrode of the respective MOSFETs is set as a P-type.Type: GrantFiled: March 27, 2002Date of Patent: January 18, 2005Assignee: Seiko Instruments Inc.Inventors: Hirofumi Harada, Jun Osanai
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Patent number: 6841813Abstract: There is provided a monolithic three dimensional TFT mask ROM array. The array includes a plurality of device levels. Each of the plurality of device levels contains a first set of enabled TFTs and a second set of partially or totally disabled TFTs.Type: GrantFiled: October 26, 2001Date of Patent: January 11, 2005Assignee: Matrix Semiconductor, Inc.Inventors: Andrew J. Walker, Christopher Petti
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Patent number: 6806535Abstract: A method of fabricating a non-volatile memory is provided. A longitudinal strip of stacked layer is formed over a substrate. The longitudinal strip is a stacked layer including a gate dielectric layer, a conductive layer and a cap layer. A buried bit line is formed in the substrate on each side of the longitudinal strip. The longitudinal strip is patterned to form a plurality of stacked blocks. Thereafter, a dielectric layer is formed over the substrate. The dielectric layer exposes the cap layer of the stacked blocks. Some cap layers of the stacked blocks are removed to expose the conductive layer underneath. A word line is formed over the dielectric layer to connect stacked blocks in the same row serially together.Type: GrantFiled: January 22, 2003Date of Patent: October 19, 2004Assignee: Macronix International Co., Ltd.Inventor: Ching-Yu Chang
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Patent number: 6787825Abstract: A data storage/processing apparatus includes ROM and/or WORM and/or REWRITEABLE memory modules and/or processing modules provided as a single main layer or multiple main layers on top of a substrate. Transistors and/or diodes operate the apparatus. In one set of embodiments, at least some of the transistors and/or diodes are provided on or in the substrate. In another set of embodiments, at least some of the layers on the top of the substrate include low-temperature compatible organic materials and/or low temperature compatible processes inorganic films, and the transistors and/or diodes need not be disposed on or in the substrate. In a related fabricating method, the memory and/or processing modules are provided on the substrate by depositing the layers in successive steps under thermal conditions that avoid subjecting an already-deposited, processed underlying layers to static or dynamic temperatures exceeding given stability limits, particularly with regard to organic materials.Type: GrantFiled: January 2, 2001Date of Patent: September 7, 2004Assignee: Thin Film Electronics ASAInventors: Hans Gude Gudesen, Per-Erik Nordal, Geirr I. Leistad, Johan Carlsson, Göran Gustafsson, Michael O Thompson