Patents Issued in April 6, 2010
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Patent number: 7691665Abstract: The present invention relates to a process for reducing the mobility of an semiconductor (OSC) layer in an electronic device, which has a semiconducting channel area, in specific areas outside said channel area by applying an oxidzing agent to the OSC layer.Type: GrantFiled: October 4, 2005Date of Patent: April 6, 2010Assignee: Merck Patent GmbHInventors: Beverley Anne Brown, Janos Veres, Simon Dominic Ogier
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Patent number: 7691666Abstract: A thin film transistor comprises a zinc-oxide-containing semiconductor material. Such transistors can further comprise spaced apart first and second contact means or electrodes in contact with said material. Further disclosed is a process for fabricating a thin film transistor device, wherein the substrate temperature is no more than 300° C. during fabrication.Type: GrantFiled: June 16, 2005Date of Patent: April 6, 2010Assignee: Eastman Kodak CompanyInventors: David H. Levy, Andrea C. Scuderi, Lyn M. Irving
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Patent number: 7691667Abstract: An integrated circuit package may include a plurality of interconnects, and an integrated package substrate coupled to the plurality of interconnects and comprising an integrated circuit package substrate core. A first surface of the integrated circuit package substrate core may define a depression.Type: GrantFiled: June 27, 2006Date of Patent: April 6, 2010Assignee: Intel CorporationInventors: Biju Chandran, Mitul Modi
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Patent number: 7691668Abstract: A method and apparatus are provided for multi-chip packaging. A multi-chip package (100) includes a substrate (105) and a plurality of semiconductor dice (110, 120, 130). A first semiconductor die (110) is physically coupled to an upper face of the substrate (105), the first semiconductor die (110) being a smallest one of the plurality of semiconductor dice (110, 120, 130).Type: GrantFiled: December 19, 2006Date of Patent: April 6, 2010Assignee: Spansion LLCInventors: Yong Du, John Yan
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Patent number: 7691669Abstract: Techniques for electronic device fabrication are provided. In one aspect, an electronic device is provided. The electronic device comprises at least one interposer structure having one or more vias and a plurality of decoupling capacitors integrated therein, the at least one interposer structure being configured to allow for one or more of the plurality of decoupling capacitors to be selectively deactivated. In another aspect, a method of fabricating an electronic device comprising at least one interposer structure having one or more vias and a plurality of decoupling capacitors integrated therein comprises the following step. One or more of the plurality of decoupling capacitors are selectively deactivated.Type: GrantFiled: March 27, 2008Date of Patent: April 6, 2010Assignee: International Business Machines CorporationInventors: Raymond R. Horton, John U. Knickerbocker, Edmund J. Sprogis, Cornelia K. Tsang
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Patent number: 7691670Abstract: Embodiments in accordance with the present invention relate to techniques which avoid the problems of deformation in the shape of a solder connection in a flip chip package, resulting from solder reflow. In one embodiment, a solder-repellent surface is created adjacent to the solder to constrain the reflow and thereby maintain the vertical profile of the solder. Examples of such a solder-repellent surface include an oxide (such as Brown Oxide) of the lead frame, or a tape (such as Kapton) which is used as a dam bar to control/constrain the solder flow on the leads prior to the encapsulation step. In another embodiment, the solder connection may be formed from at least two components. The first component may reflow at high temperatures to provide the necessary adhesion between solder ball and the die, with the second component reflowing at a lower temperature to provide the necessary adhesion between the solder ball and the leads.Type: GrantFiled: July 11, 2008Date of Patent: April 6, 2010Assignee: GEM Services, Inc.Inventors: Mohammad Eslamy, Anthony C. Tsui
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Patent number: 7691671Abstract: Methods and systems for attaching a chip to a next level package by directing radiant energy at the chip back side while substantially preventing irradiation of the next level package are described.Type: GrantFiled: October 30, 2006Date of Patent: April 6, 2010Assignee: Intel CorporationInventor: Kristopher J. Frutschy
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Patent number: 7691672Abstract: The present invention provides a substrate treating method including the steps of joining a one-side surface of a substrate to be treated to a support substrate, treating the substrate to be treated in the condition where the substrate to be treated is supported by the support substrate, and removing the support substrate from the substrate to be treated. The step of joining the substrate to be treated to the support substrate includes melting a joint bump formed on the substrate to be treated so as to join the substrate to be treated to the support substrate, and the step of removing the support substrate from the substrate to be treated includes polishing the support substrate so as to remove the support substrate.Type: GrantFiled: April 30, 2007Date of Patent: April 6, 2010Assignee: Sony CorporationInventors: Masaki Hatano, Hiroshi Asami
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Patent number: 7691673Abstract: An electronic parts packaging structure of the present invention includes a wiring substrate having a wiring pattern, a first insulating film which is formed on the wiring substrate and which has an opening portion in a packaging area where an electronic parts is mounted, the electronic parts having a connection terminal flip-chip mounted on the wiring pattern exposed in the opening portion of the first insulating film, a second insulating film for covering the electronic parts, a via hole formed in a predetermined portion of the first and second insulating films on the wiring pattern, and an upper wiring pattern formed on the second insulating film and connected to the wiring pattern through the via hole.Type: GrantFiled: September 22, 2006Date of Patent: April 6, 2010Assignee: Shinko Electric Industries Co., Ltd.Inventors: Masahiro Sunohara, Kei Murayama, Toshinori Koyama, Kazutaka Kobayashi, Mitsutoshi Higashi
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Patent number: 7691674Abstract: A method of manufacture of an integrated circuit packaging system includes: forming a first lead, having a first body and a first tip, and a paddle, having a protrusion at a side of the paddle, with the first body adjacent to the protrusion; forming a second lead having a second body and a second tip adjacent to the paddle; attaching a device, having a device active side, to the paddle and adjacent to the protrusion; mounting a component, having a component active side, to the device with the component active side facing the device active side and between the second body and the first tip; connecting the component and the second body; and forming an encapsulation covering the device, and partially covering the paddle, the component, the first lead, and the second lead.Type: GrantFiled: June 20, 2009Date of Patent: April 6, 2010Assignee: Stats Chippac Ltd.Inventors: Henry Descalzo Bathan, Zigmund Ramirez Camacho, Jairus Legaspi Pisigan
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Patent number: 7691675Abstract: An electrical connection is encapsulated by dispensing an encapsulant on a first side of the electrical connection only, and directing the encapsulant to a second side of the electrical connection from the first side, where the second side generally faces opposite the first side.Type: GrantFiled: October 24, 2005Date of Patent: April 6, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Carlos B. W. Garcia, M. Jeffery Igelman, Paul David Schweitzer
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Patent number: 7691676Abstract: A mold array process (MAP) for manufacturing a plurality of semiconductor packages is revealed. Firstly, a substrate strip including a plurality of substrate units arranged in an array within a molding area is provided. A plurality of chips are disposed on the substrate units. An encapsulant by molding is formed on the molding area of the substrate strip to continuously encapsulate the chips. During the molding process, an adjustable top mold is implemented where a cavity width between two opposing sidewalls inside a top mold chest can be adjusted to make the mold flow speeds at the center and at the side rails of the molding area the same.Type: GrantFiled: November 14, 2008Date of Patent: April 6, 2010Assignee: Powertech Technology Inc.Inventors: Wen-Jeng Fan, Li-Chih Fang, Ji-Cheng Lin
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Patent number: 7691677Abstract: The quality of a non-leaded semiconductor device is to be improved. The semiconductor device comprises a sealing body for sealing a semiconductor chip with resin, a tab disposed in the interior of the sealing body, suspension leads for supporting the tab, plural leads having respective to-be-connected surfaces exposed to outer edge portions of a back surface of the sealing body, and plural wires for connecting pads formed on the semiconductor chip and the leads with each other. End portions of the suspending leads positioned in an outer periphery portion of the sealing body are not exposed to the back surface of the sealing body, but are covered with the sealing body. Therefore, stand-off portions of the suspending leads are not formed in resin molding.Type: GrantFiled: November 24, 2008Date of Patent: April 6, 2010Assignee: Renesas Technology Corp.Inventors: Tadatoshi Danno, Hiroyoshi Taya, Yoshiharu Shimizu
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Patent number: 7691678Abstract: A solid-state imaging device comprises a housing in which a base and ribs forming a rectangular frame are formed in one piece by a resin; a plurality of metal lead pieces embedded in the housing, each of which has an internal terminal portion facing an internal space of the housing and an external terminal portion exposed at an outer portion of the housing; an imaging element arranged on the base in the internal space of the housing; connecting members connecting electrodes of the imaging element to the internal terminal portions of the metal lead pieces; and a transparent plate fastened to an upper face of the ribs. The upper face of the ribs is provided with a lower step portion that is lowered along an external periphery, and the transparent plate is fastened to the upper face of the ribs by an adhesive filled at least into the lower step portion.Type: GrantFiled: April 3, 2008Date of Patent: April 6, 2010Assignee: Panasonic CorporationInventors: Katsutoshi Shimizu, Masanori Minamio, Kouichi Yamauchi
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Patent number: 7691679Abstract: A process for producing a pre-plated leadframe that has enhanced adhesion by molding compound is provided, wherein a base leadframe material is first plated with multiple layers of metallic material. Thereafter, the plated base leadframe material is covered with a mask, so as to expose selected surfaces thereof at unmasked areas where enhanced adhesion of molding compound is desired. The said unmasked areas are plated with a layer of copper before removing the mask. Optionally, the layer of copper may further be oxidized to form a layer of specially controlled copper oxide.Type: GrantFiled: March 23, 2007Date of Patent: April 6, 2010Assignee: ASM Assembly Materials Ltd.Inventors: Yiu Fai Kwan, Tat Chi Chan, Chun Ho Yau, Chi Chung Lee
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Patent number: 7691680Abstract: The present disclosure suggests various microelectronic component assembly designs and methods for manufacturing microelectronic component assemblies. In one particular implementation, a microelectronic component assembly includes a microelectronic component, at least two leads, and at least two bond wires. Each of the leads may have a reduced-thickness inner length adjacent terminals of the microelectronic component and a body having an outer surface spaced farther from the microelectronic component than a bond surface of the inner length. Each of the bond wires couples the microelectronic component to one of the leads and has a maximum height outwardly from the microelectronic component that is no greater than the height of the outer surface of the lead.Type: GrantFiled: April 23, 2008Date of Patent: April 6, 2010Assignee: Micron Technologies, Inc.Inventors: Chee Peng Neo, Hock Chuan Tan, Beng Chye Chew, Yih Ming Chai, Kian Shing Tan
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Patent number: 7691681Abstract: A flip chip lead frame package includes a die and a lead frame having a die paddle and leads, and has interconnection between the active site of the die and the die paddle. Also, methods for making the package are disclosed.Type: GrantFiled: August 14, 2008Date of Patent: April 6, 2010Assignee: ChipPAC, Inc.Inventor: Cheonhee Lee
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Patent number: 7691682Abstract: A device is disclosed which includes, in one illustrative example, an integrated circuit die having an active surface and a molded body extending around a perimeter of the die, the molded body having lips that are positioned above a portion of the active surface of the die. Another illustrative example includes an integrated circuit die having an active surface, a molded body extending around a perimeter of the die and a CTE buffer material formed around at least a portion of the perimeter of the die adjacent the active surface of the die, wherein the CTE buffer material is positioned between a portion of the die and a portion of the molded body and wherein the CTE buffer material has a coefficient of thermal expansion that is intermediate a coefficient of thermal expansion for the die and a coefficient of thermal expansion for the molded body.Type: GrantFiled: June 26, 2007Date of Patent: April 6, 2010Assignee: Micron Technology, Inc.Inventors: Ng Hong Wan, Lee Choon Kuan, David J. Corisis, Chong Chin Hui
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Patent number: 7691683Abstract: Electrode structures, variable resistance memory devices, and methods of making the same, which minimize electrode work function variation. Methods of forming an electrode having a minimized work function variation include methods of eliminating concentric circles of material having different work functions. Exemplary electrodes include electrode structures having concentric circles of materials with different work functions, wherein this difference in workfunction has been minimized by recessing these materials within an opening in a dielectric and forming a third conductor, having a uniform work function, over said recessed materials.Type: GrantFiled: March 7, 2006Date of Patent: April 6, 2010Inventors: Joseph F. Brooks, John T. Moore
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Patent number: 7691684Abstract: A method of forming an antifuse forms a material layer and then patterns the material layer into a fin. The center portion of the fin is converted into a substantially non-conductive region and the end portions of the fin into conductors. The process of converting the center portion of the fin into an insulator allows a process of heating the fin above a predetermined temperature to convert the insulator into a conductor. Thus, the fin-type structure that can be selectively converted from an insulator into a permanent conductor using a heating process.Type: GrantFiled: July 31, 2008Date of Patent: April 6, 2010Assignee: International Business Machines CorporationInventors: Matthew J. Breitwisch, Chung H. Lam, Edward J. Nowak
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Patent number: 7691685Abstract: In the present circumstances, a film formation method of using spin coating in a manufacturing process is heavily used. As increasing the substrate size in future, the film formation method of using spin coating becomes at a disadvantage in mass production since a mechanism for rotating a large substrate becomes large, and there is many loss of material solution or waste liquid. According to the present invention, in a manufacturing process of a semiconductor device, a microscopic wiring pattern can be realized by delivering selectively photosensitive conductive material solution by droplet discharging, exposing selectively to laser light or the like, and developing. The present invention can reduce drastically costs since a patterning process can be shortened and an amount of material in a process of forming a conductive pattern can be reduced. Accordingly, the present invention can be applied to manufacture a large substrate.Type: GrantFiled: January 24, 2005Date of Patent: April 6, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shinji Maekawa, Shunpei Yamazaki, Hironobu Shoji
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Patent number: 7691686Abstract: An object of the present invention to provide a semiconductor device manufactured in short time by performing the step of forming the thin film transistor and the step of forming the photoelectric conversion layer in parallel, and to provide a manufacturing process thereof. According to the present invention, a semiconductor device is manufactured in such a way that a thin film transistor is formed over a first substrate, a photoelectric conversion element is formed over a second substrate, and the thin film transistor and the photoelectric conversion element are connected electrically by sandwiching a conductive layer between the first and second substrates opposed to each other so that the thin film transistor and the photoelectric conversion element are located between the first and second substrates. Thus, a method for manufacturing a semiconductor device which suppresses the increase in the number of steps and which increases the throughput can be provided.Type: GrantFiled: May 16, 2005Date of Patent: April 6, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kazuo Nishi, Junya Maruyama, Naoto Kusumoto, Yuusuke Sugawara
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Patent number: 7691687Abstract: A crystalline film includes a first crystalline region having a first film thickness and a first crystalline grain structure; and a second crystalline region having a second film thickness and a second crystalline grain structure. The first film thickness is greater than the second film thickness and the first and second film thicknesses are selected to provide a crystalline region having the degree and orientation of crystallization that is desired for a device component.Type: GrantFiled: January 9, 2007Date of Patent: April 6, 2010Assignee: The Trustees of Columbia University in the City of New YorkInventor: James S. Im
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Patent number: 7691688Abstract: Methods of forming a strained Si-containing hybrid substrate are provided as well as the strained Si-containing hybrid substrate formed by the methods. In the methods of the present invention, a strained Si layer is formed overlying a regrown semiconductor material, a second semiconducting layer, or both. In accordance with the present invention, the strained Si layer has the same crystallographic orientation as either the regrown semiconductor layer or the second semiconducting layer. The methods provide a hybrid substrate in which at least one of the device layers includes strained Si.Type: GrantFiled: June 23, 2008Date of Patent: April 6, 2010Assignee: International Business Machines CorporationInventors: Kevin K. Chan, Meikei Ieong, Alexander Reznicek, Devendra K. Sadana, Leathen Shi, Min Yang
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Patent number: 7691689Abstract: In methods of fabricating a semiconductor device having multiple channel transistors and semiconductor devices fabricated thereby, the semiconductor device includes an isolation region disposed within a semiconductor substrate and defining a first region. A plurality of semiconductor pillars self-aligned with the first region and spaced apart from each other are disposed within the first region, and each of the semiconductor pillars has at least one recessed region therein. At least one gate structure may be disposed across the recessed regions, which crosses the semiconductor pillars and extends onto the isolation region.Type: GrantFiled: July 13, 2006Date of Patent: April 6, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Se-Myeong Jang, Makoto Yoshida, Jae-Rok Kahng, Hyun-Ju Sung, Hui-Jung Kim, Chang-Hoon Jeon
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Patent number: 7691690Abstract: Methods for forming fully silicided gates over fins of FinFet devices are disclosed. The disclosure provides methods for patterning a gate stack over each fin from a polysilicon layer and a polysilicon germanium layer, and then removing the polysilicon germanium layer over one of the fins. The disclosure further includes forming a metal layer over both fins and annealing the FinFet device to form fully silicided gates over each fin of the FinFet device.Type: GrantFiled: January 12, 2007Date of Patent: April 6, 2010Assignee: International Business Machines CorporationInventors: Huilong Zhu, Zhijiong Luo
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Patent number: 7691691Abstract: Thin film transistors (TFT) and methods for making same. The TFTs generally comprise: (a) a semiconductor layer comprising source and drain terminals and a channel region therebetween; (b) a gate electrode comprising a gate and a gate dielectric layer between the gate and the channel region; (c) a first dielectric layer adjacent to the gate electrode and in contact with the source and drain terminals, the first dielectric layer comprising a material which comprises a dopant therein; and (d) an electrically functional source/drain extensions in the channel region, adjacent to the source and drain terminals, comprising a material which comprises the same dopant as the first dielectric layer.Type: GrantFiled: May 23, 2007Date of Patent: April 6, 2010Assignee: Kovio, Inc.Inventor: James Montague Cleeves
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Patent number: 7691692Abstract: A substrate processing apparatus includes a plurality of evacuable treatment chambers connected to one another via an evacuable common chamber, and the common chamber is provided with means for transporting a substrate between each treatment chamber. More specifically, a substrate processing apparatus includes a plurality of evacuable treatment chambers, at least one of said treatment chambers having a film formation function through a vapor phase reaction therein, at least one of said treatment chambers having an annealing function with light irradiation and at least one of said treatment chambers having a heating function therein. The apparatus also has a common chamber through which said plurality of evacuable treatment chambers are connected to one another, and a transportation means provided in said common chamber for transporting a substrate between each treatment chamber.Type: GrantFiled: September 17, 2008Date of Patent: April 6, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hisashi Ohtani, Hiroyuki Shimada, Mitsunori Sakama, Hisashi Abe, Satoshi Teramoto
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Patent number: 7691693Abstract: A method for smoothing variations in threshold voltage in an integrated circuit layout. The method begins by identifying recombination surfaces associated with transistors in the layout. Such recombination surfaces are treated to affect the recombination of interstitial atoms adjacent such surfaces, thus minimizing variations in threshold voltage of transistors within the layout.Type: GrantFiled: June 1, 2007Date of Patent: April 6, 2010Assignee: Synopsys, Inc.Inventors: Victor Moroz, Dipankar Pramanik
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Patent number: 7691694Abstract: A silicon carbide semiconductor device includes a substrate and a junction field effect transistor. The transistor includes: a first semiconductor layer disposed on the substrate; a first gate layer disposed on a surface of the first semiconductor layer; a first channel layer adjacent to the first gate layer on the substrate; a first source layer connecting to the first channel layer electrically; a second gate layer adjacent to the first channel layer to sandwich the first channel layer; a second channel layer adjacent to the second gate layer to sandwich the second gate layer; a third gate layer adjacent to the second channel layer to sandwich the second channel layer; and a second source layer connecting to the second channel layer electrically.Type: GrantFiled: April 17, 2007Date of Patent: April 6, 2010Assignee: DENSO CORPORATIONInventors: Rajesh Kumar, Andrei Mihaila, Florin Udrea
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Patent number: 7691695Abstract: The invention relates to a semiconductor device (10) consisting of a substrate (11) and a semiconductor body (2) comprising a strip-shaped semiconductor region (3,3A,3B) of silicon in which a field effect transistor is formed, wherein a source region (4) of a first conductivity type, a channel region (33) of a second conductivity type opposed to the first, and a drain region (5) of the first conductivity type are arranged in succession, successively, seen in the longitudinal direction of the strip-shaped semiconductor region (3,3A,3B), and wherein the channel region (33) is provided with a gate dielectric (6), on which a first gate electrode (7) is present on a first vertical side of the strip-shaped semiconductor region (3,3A,3B), which gate electrode (7) is provided with a first connection region (7A), and on which a second gate electrode (8) is present on a second vertical side of the strip-shaped semiconductor region (3,3A,3B) positioned opposite the first vertical side, which second gate electrode (8) isType: GrantFiled: December 19, 2005Date of Patent: April 6, 2010Assignee: NXP B.V.Inventor: Youri V Ponomarev
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Patent number: 7691696Abstract: Hemi-spherical structure and method for fabricating the same. A device includes discrete pillar regions on a substrate, and a pattern layer on the discrete support structures and the substrate. The pattern layer has hemi-spherical film regions on the discrete support structures respectively, and planarized portions on the substrate between the hemi-spherical film regions. Each of the hemi-spherical film regions in a position corresponding to each of the support structures serves as a hemi-spherical structure.Type: GrantFiled: March 13, 2008Date of Patent: April 6, 2010Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Ming-Chyi Liu, Chi-Hsin Lo
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Patent number: 7691697Abstract: A high-reliability power composite integrated semiconductor device uses thick copper electrodes as current collecting electrodes of a power device portion to resist wire resistance needed for reducing ON-resistance. Furthermore, wire bonding connection of the copper electrodes is secured, and also the time-lapse degradation under high temperature which causes diffusion of copper and corrosion of copper is suppressed. Still furthermore, direct bonding connection can be established to current collecting electrodes in the power device portion, and also established to a bonding pad formed on the control circuit portion in the control circuit portion. A pad area at the device peripheral portion which has been hitherto needed is reduced, so that the area of the device is saved, and the manufacturing cost is reduced.Type: GrantFiled: June 24, 2008Date of Patent: April 6, 2010Assignee: DENSO CORPORATIONInventor: Hiroyasu Itou
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Patent number: 7691698Abstract: The invention relates to a semiconductor structure and method of manufacturing and more particularly to a CMOS device with at least one embedded SiGe layer in the source/drain region of the PFET, and at least one embedded SiGe layer in the channel region of the NFET. In one embodiment, the structure of the invention enhances the electron mobility in the NFET device, and further enhances the hole mobility in the PFET device. Additionally, by using the fabrication methods and hence achieving the final structure of the invention, it is also possible to construct a PFET and NFET each with embedded SiGe layers on the same substrate.Type: GrantFiled: February 21, 2006Date of Patent: April 6, 2010Assignee: International Business Machines CorporationInventors: Dureseti Chidambarrao, Anda C. Mocuta, Dan M. Mocuta, Carl Radens
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Patent number: 7691699Abstract: Disclosed herein is a transistor for a semiconductor device and a method of forming the same. According to the present invention, a recess channel region is formed on a cell region to increase a channel length and a fin-type channel region is simultaneously formed on a peripheral circuit region to increase a channel area so as to simplify process steps, thereby improving the yield and productivity for manufacturing a semiconductor device.Type: GrantFiled: December 30, 2005Date of Patent: April 6, 2010Assignee: Hynix Semiconductor Inc.Inventors: Sung Woong Chung, Sang Don Lee
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Patent number: 7691700Abstract: One aspect of the inventors' concept relates to a method of forming a semiconductor device. In this method, a gate structure is formed over a semiconductor body. A source/drain mask is patterned over the semiconductor body implanted source and drain regions are formed that are associated with the gate structure. After forming the implanted source and drain regions, a multi-stage implant is performed on the source and drain regions that comprises at least two implants where the dose and energy of the first implant varies from the dose and energy of the second implant. Other methods and devices are also disclosed.Type: GrantFiled: June 27, 2007Date of Patent: April 6, 2010Assignee: Texas Instruments IncorporatedInventors: Manoj Mehrotra, Stan Ashburn, Shaoping Tang
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Patent number: 7691701Abstract: Embodiments of the present invention provide a method of forming gate stacks for field-effect-transistors.Type: GrantFiled: January 5, 2009Date of Patent: April 6, 2010Assignees: International Business Machines Corporation, Freescale Semiconductor, Inc.Inventors: Michael P. Belyansky, Siddarth A. Krishnan, Unoh Kwon, Naim Moumen, Ravikumar Ramachandran, James Kenyon Schaeffer, Richard Wise, Keith Kwong Hon Wong, Hongwen Yan
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Patent number: 7691702Abstract: In deep submicron memory arrays there is noted a relatively steady on current value and, therefore, threshold values of the transistors comprising the memory cell are reduced. This, in turn, results in an increase in the leakage current of the memory cell. With the use of an ever increasing number of memory cells leakage current must be controlled. A method of manufacture of a dynamic threshold voltage control scheme implemented with no more than minor changes to the existing MOS process technology is disclosed. The disclosed invention controls the threshold voltage of MOS transistors. Methods for enhancing the impact of the dynamic threshold control technology using this apparatus are also included. The invention is particularly useful for SRAM, DRAM, and NVM devices.Type: GrantFiled: April 24, 2008Date of Patent: April 6, 2010Assignee: Semi Solutions, LLCInventor: Ashok Kumar Kapoor
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Patent number: 7691704Abstract: A method for manufacturing a semiconductor device having a damascene metal/insulator/metal (MIM)-type capacitor and metal lines including providing a semiconductor device; sequentially forming a first interlayer insulating film and a second interlayer insulating film over the semiconductor substrate; simultaneously forming a vias hole and a lower metal line in a line region and a lower electrode in a capacitor region, wherein the lower metal line and the lower electrode are electrically connected to the semiconductor device; sequentially forming a dielectric film, a third interlayer insulating film, a fourth interlayer insulating film and a fifth interlayer insulating film over the semiconductor substrate; and then simultaneously forming a plurality of upper electrodes, a plurality of second vias holes and a plurality of second upper metal lines in the capacitor region electrically connected to the plurality of upper electrodes, a plurality of third vias holes and a plurality of second upper metal lines in thType: GrantFiled: October 19, 2007Date of Patent: April 6, 2010Assignee: Dongbu HiTek Co., Ltd.Inventor: Seon-Heui Kim
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Patent number: 7691705Abstract: A method for manufacturing a flash memory cell with a floating gate and a control gate having an increased coupling ratio due to an increase in gate capacitance. The gate size is increased by reducing a groove width in a photoresist pattern used to define the gate region. The groove width is reduced by employing a slope-etching process to form the photoresist pattern.Type: GrantFiled: December 20, 2006Date of Patent: April 6, 2010Assignee: Dongbu HiTek Co., Ltd.Inventor: Tae-Ho Kim
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Patent number: 7691706Abstract: Embodiments relate to a method for fabricating a semiconductor device. In embodiments, the method may include forming a gate dielectric layer on an active region of a semiconductor substrate defined by an isolation region to form a gate conductive layer pattern, etching the isolation region of the semiconductor substrate where the gate conductive layer pattern is formed, to form an isolation trench, forming a polyoxide layer on the gate conductive layer pattern and a sidewall oxide layer in the trench by carrying out an oxidation process, forming a spacer nitride layer on the polyoxide layer and a liner nitride layer on the sidewall oxide layer by carrying out a nitride layer forming process, and then forming a dielectric layer on an entire surface of the resultant structure to fill the trench.Type: GrantFiled: December 27, 2006Date of Patent: April 6, 2010Assignee: Dongbu HiTek Co., Ltd.Inventor: Bong Jun Kim
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Patent number: 7691708Abstract: A MOSgated trench device has a reduced on resistance by forming a less than about a 13 nm thick strained SiGe layer on the silicon surface of the trenches and forming a thin (30 nm or less) layer of epitaxially deposited silicon on the SiGe layer which epi layer is converted to a gate oxide layer. The conduction channel formed by the SiGe layer is permanently strained to increase its mobility particularly hole mobility.Type: GrantFiled: May 17, 2007Date of Patent: April 6, 2010Assignee: International Rectifier CorporationInventors: David Paul Jones, Robert P. Haase
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Patent number: 7691709Abstract: A method of fabricating a flash memory includes forming a first oxide film over a semiconductor substrate, forming a metal film over the first oxide film, forming a photoresist pattern on the metal film, etching the metal film using the photoresist pattern as a mask and forming a metal film pattern, forming a second oxide film overlying the metal film pattern, and heat-treating the first and second oxide films at high temperature and processing the metal film pattern using metal oxide crystallization.Type: GrantFiled: October 17, 2007Date of Patent: April 6, 2010Assignee: Dongbu HiTek Co., LtdInventor: Hye-Sung Lee
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Patent number: 7691710Abstract: A select gate structure for a non-volatile storage system include a select gate and a coupling electrode which are independently drivable. The coupling electrode is adjacent to a word line in a NAND string and has a voltage applied which reduces gate induced drain lowering (GIDL) program disturb of an adjacent unselected non-volatile storage element. In particular, an elevated voltage can be applied to the coupling electrode when the adjacent word line is used for programming. A reduced voltage is applied when a non-adjacent word line is used for programming. The voltage can also be set based on other programming criterion. The select gate is provided by a first conductive region while the coupling electrode is provided by a second conductive region formed over, and isolated from, the first conductive region.Type: GrantFiled: October 17, 2006Date of Patent: April 6, 2010Assignee: Sandisk CorporationInventors: Nima Mokhlesi, Masaaki Higashitani
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Patent number: 7691711Abstract: A method of forming a vertical MOSFET device includes forming a first trench within a semiconductor layer of a first polarity, the first trench generally defining a well region of a second polarity opposite the first polarity; growing a first epitaxial well layer of the second polarity over the original semiconductor layer; growing a second epitaxial source contact layer of the first polarity over the well layer; forming a second trench through the source contact layer and at least a portion of the well layer; growing a third epitaxial layer of the second polarity over the source contact layer; and planarizing at least the first and second epitaxial layers so as to expose an upper surface of the original semiconductor layer, wherein a top surface of the third epitaxial layer is substantially coplanar with a top surface of the source contact layer prior to ohmic contact formation.Type: GrantFiled: January 31, 2008Date of Patent: April 6, 2010Assignee: General Electric CompanyInventors: Zachary Matthew Stum, Kevin Sean Matocha, Jody Alan Fronheiser, Ljubisa Dragoljub Stevanovic
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Patent number: 7691712Abstract: Semiconductor device structures and fabrication methods for field effect transistors in which a gate electrode is provided with an air gap or void disposed adjacent to a sidewall of the gate electrode. The void may be bounded by a dielectric spacer proximate to the sidewall of the gate electrode and a dielectric layer having a spaced relationship with the dielectric spacer. The methods of the invention involve the use of a temporary spacer consisting of a sacrificial material supplied adjacent to the sidewall of the gate electrode, which is removed after the dielectric layer is formed.Type: GrantFiled: June 21, 2006Date of Patent: April 6, 2010Assignee: International Business Machines CorporationInventors: Dureseti Chidambarrao, Ricardo Alves Donaton, Jack Allan Mandelman
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Patent number: 7691713Abstract: A method of manufacturing a semiconductor device is provided that can suppress impurity concentration reduction in a doped channel region arising from formation of a gate insulating film. With a silicon oxide film (20) and a silicon nitride film (21) being formed, p-type impurity ions (23.sub.1, 23.sub.2) are implanted in a Y direction from diagonally above. As for an implant angle .alpha. of the ion implantation, an implant angle is adopted that satisfies the relationship tan?1 (W2/T)<??tan?1 (W1/T), where W1 is an interval between a first portion (211) and a fourth portion (214) and an interval between a third portion (213) and a sixth portion (216); W2 is an interval between a second portion (212) and a fifth portion (215); T is a total film thickness of the silicon oxide film (20) and the silicon nitride film (21).Type: GrantFiled: June 25, 2007Date of Patent: April 6, 2010Assignee: Renesas Technology Corp.Inventors: Yoshinori Tanaka, Katsuyuki Horita, Heiji Kobayashi
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Patent number: 7691714Abstract: The present invention provides a method for manufacturing a transistor device, a method for manufacturing an integrated circuit, and a transistor device. The method for manufacturing the transistor device, among other steps, includes forming a gate structure over a substrate and forming source/drain regions in the substrate proximate the gate structure, the source/drain regions having a boundary that forms an electrical junction with the substrate. The method further includes forming dislocation loops in the substrate, the dislocation loops not extending outside the boundary of the source/drain regions.Type: GrantFiled: January 25, 2005Date of Patent: April 6, 2010Assignee: Texas Instruments IncorporatedInventors: Antonio Luis Pacheco Rotondaro, Kaiping Liu, Jihong Chen, Amitabh Jain
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Patent number: 7691715Abstract: A method for fabricating a device using an oxide semiconductor, including a process of forming the oxide semiconductor on a substrate and a process of changing the conductivity of the oxide semiconductor by irradiating a predetermined region thereof with an energy ray.Type: GrantFiled: July 29, 2008Date of Patent: April 6, 2010Assignee: Canon Kabushiki KaishaInventors: Nobuyuki Kaji, Hisato Yabuta
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Patent number: 7691716Abstract: The present invention provides a “subcollector-less” silicon-on-insulator (SOI) bipolar junction transistor (BJT) that has no impurity-doped subcollector. Instead, the inventive vertical SOI BJT uses a back gate-induced, majority carrier accumulation layer as the subcollector when it operates. The SOI substrate is biased such that the accumulation layer is formed at the bottom of the first semiconductor layer. The advantage of such a device is its CMOS-like process. Therefore, the integration scheme can be simplified and the manufacturing cost can be significantly reduced. The present invention also provides a method of fabricating BJTs on selected areas of a very thin BOX using a conventional SOI starting wafer with a thick BOX. The reduced BOX thickness underneath the bipolar devices allows for a significantly reduced substrate bias compatible with the CMOS to be applied while maintaining the advantages of a thick BOX underneath the CMOS. A back-gated CMOS device is also provided.Type: GrantFiled: June 24, 2008Date of Patent: April 6, 2010Assignee: International Business Machines CorporationInventors: Herbert L. Ho, Mahender Kumar, Qiging Ouyang, Paul A. Papworth, Christopher D. Sheraw, Michael D. Steigerwalt