Patents Issued in February 13, 2007
  • Patent number: 7176057
    Abstract: A power module and a method for producing it. The power module has a first substrate having power semiconductor chips, and a second substrate populated with signal semiconductor chips. The substrates are oriented parallel one above the other, their placement sides being arranged facing one another, and the second substrate, with the aid of bonding wires bent in hingelike fashion, being held at a defined distance d from the first substrate and being mechanically fixed in a plastic housing and electrically connected.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: February 13, 2007
    Assignee: Infineon Technologies AG
    Inventor: Wolfram Hable
  • Patent number: 7176058
    Abstract: Disclosed are a chip scale package and a method of fabricating the chip scale package. The chip scale package comprises conductive layers with a designated depth formed on an upper and a lower surfaces of a chip, and electrode surfaces formed on the same side surfaces of the conductive layers, which are connected to corresponding connection pads of a printed circuit board. The chip scale package is miniaturized in the whole package size. Further, the method of fabricating the chip scale package does not require a wire-bonding step or a via hole forming step, thereby simplifying the fabrication process of the chip scale package and improving the reliability of the chip scale package.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: February 13, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joon Ho Yoon, Yong Chil Choi, Suk Su Bae
  • Patent number: 7176059
    Abstract: An electronic component includes at least one semiconductor chip, which has an active chip top side with contact areas and has a chip rear side arranged on a carrier top side of a circuit carrier. The circuit carrier and the chip top side are covered by a common rewiring layer having external contact areas at a different level. The different level is matched to a common level of external contact top sides by means of different heights of in part compliant external contacts.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: February 13, 2007
    Assignee: Infineon Technologies, AG
    Inventor: Georg Meyer-Berg
  • Patent number: 7176060
    Abstract: A multi-function structure of a plug-in universal IC card is to be promoted and the manufacturing cost is to be reduced. The body of the plug-in UICC is constructed of a molding resin. A tape substrate and a chip mounted on one side of the tape substrate are sealed in the interior of the molding resin. A side opposite to the chip mounting side of the tape substrate is exposed to the exterior of the molding resin and constitutes a surface portion of the plug-in UICC. Contact patterns serving as external terminals of the plug-in UICC are formed on the surface of the tape substrate exposed to the exterior of the molding resin. In the plug-in UICC whose body is constructed of molding resin, cracking of the chip can be prevented effectively even in the case where the chip is large-sized.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: February 13, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Nobuaki Yamada, Kazunari Suzuki, Bunshi Kuratomi, Hiroaki Tanaka, Akira Onozawa
  • Patent number: 7176061
    Abstract: In manufacturing a semiconductor memory, a gate oxide film, a polysilicon film and a WSi film are laminated on the major surface of a semiconductor wafer corresponding to both an element region on which a semiconductor chip is to be formed and a dicing region serving as a dicing line. These laminated films are patterned to form a projected dummy pattern having substantially the same wiring structure as that of a gate electrode portion of a selective transistor. The dummy pattern is formed between element isolation regions along a dicing direction at the same time when the gate electrode portion is formed. The dummy pattern prevents stress caused by dicing from being concentrated on an insulation film in the dicing region, thereby minimizing a crack waste. Consequently, in the semiconductor memory, a malfunction due to a large crack waste caused by the dicing, can be avoided.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: February 13, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Miki Sasaki, Toshifumi Minami
  • Patent number: 7176062
    Abstract: A lead-frame method and assembly for interconnecting circuits within a circuit module allows a circuit module to be fabricated without a circuit board substrate. Integrated circuit dies are attached to a metal lead-frame assembly and the die interconnects are wire-bonded to interconnect points on the lead-frame assembly. An extension of the lead-frame assembly out of the circuit interconnect plane provides external electrical contacts for connection of the circuit module to a socket.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: February 13, 2007
    Assignee: Amkor Technology, Inc.
    Inventors: Jeffrey Alan Miks, Kenneth Kaskoun, Markus Liebhard, Donald Craig Foster, Paul Robert Hoffman, Frederic Bertholio
  • Patent number: 7176063
    Abstract: A slotted file is created by connecting two side walls and a back wall. The side walls have etched grooves facing directly across from each other. The platelet has flanges that fit into the grooves. In one embodiment, a completed cube is formed when the platelets fill the slotted file.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: February 13, 2007
    Assignee: Honeywell International Inc.
    Inventors: Gerard J. Sullivan, James R. Rau, Deceased, Larry R. Adkins, A. James Hughes
  • Patent number: 7176064
    Abstract: A memory cell is formed of a semiconductor junction diode in series with an antifuse. The cell is programmed by rupture of the antifuse. The semiconductor junction diode comprises silicon, the silicon crystallized in contact with a silicide. The suicide apparently provides a template for crystallization, improving crystallinity and conductivity of the diode, and reducing the programming voltage required to program the cell. It is advantageous to reduce a dielectric layer (such as an oxide, nitride, or oxynitride) intervening between the silicon and the silicon-forming metal during the step of forming the silicide.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: February 13, 2007
    Assignee: Sandisk 3D LLC
    Inventor: S. Brad Herner
  • Patent number: 7176065
    Abstract: An MRAM device having a plurality of MRAM cells formed of a fixed magnetic layer, a second soft magnetic layer and a dielectric layer interposed between the fixed magnetic layer and the soft magnetic layer. The MRAM cells are all formed simultaneously and at least some of the MRAM cells are designed to function as antifuse devices whereby the application of a selected electrical potential can short the antifuse device to thereby affect the functionality of the MRAM device.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: February 13, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Mirmajid Seyyedy, Mark E. Tuttle, Glen E. Hush
  • Patent number: 7176066
    Abstract: A silicon substrate is coated with one or more layers of resist. First and second circuit patterns are exposed in sequence, where the second pattern crosses the first pattern. The patterned resist layers are developed to open holes which extend down to the substrate only where the patterns cross over each other. These holes provide a mask suitable for implanting single phosphorous ions in the substrate, for a solid state quantum computer. Further development of the resist layers provides a mask for the deposition of nanoelectronic circuits, such as single electron transistors, aligned to the phosphorous ions.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: February 13, 2007
    Assignee: Unisearch Limited
    Inventors: Rolf Brenner, Tilo Marcus Buehler, Robert Graham Clark, Andrew Steven Dzurak, Alexander Rudolf Hamilton, Nancy Ellen Lumpkin, Rita Paytricia McKinnon
  • Patent number: 7176067
    Abstract: A method of forming a fin field effect transistor on a semiconductor substrate includes forming an active region in the substrate, forming an epitaxial layer on the active region, and removing a portion of the epitaxial layer to form a vertical fin on the active region. The fin has a width that is narrower than a width of the active region. Removing a portion of the epitaxial layer may include oxidizing a surface of the epitaxial layer and then removing the oxidized surface of the epitaxial layer to decrease the width of the fin. The epitaxial layer may be doped in situ before removing a portion of the epitaxial layer. The method further includes forming a conductive layer on a top surface and on sidewalls of the fin. Related transistors are also discussed.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: February 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Soo Jung, Deok-Hyung Lee, Si-Young Choi, Byeong-Chan Lee, Yong-Hoon Son
  • Patent number: 7176068
    Abstract: The present invention provides a semiconductor device in which a bottom-gate TFT or an inverted stagger TFT arranged in each circuit is suitably constructed in conformity with the functionality of the respective circuits, thereby attaining an improvement in the operating efficiency and reliability of the semiconductor device. In the structure, LDD regions in a pixel TFT are arranged so as not to overlap with a channel protection insulating film and to overlap with a gate electrode by at least a portion thereof. LDD regions in an N-channel TFT of a drive circuit is arranged so as not to overlap with a channel protection insulating film and to overlap with a gate electrode by at least a portion thereof. LDD regions in a P-channel TFT of the drive circuit is arranged so as to overlap with a channel protection insulating film and to overlap with the gate electrode.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: February 13, 2007
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideto Kitakado, Ritsuko Kawasaki, Kenji Kasahara
  • Patent number: 7176069
    Abstract: It is an object of the present invention to reduce the consumption of materials for manufacturing a display device, simplify the manufacturing process and the apparatus used for it, and lower the manufacturing costs. The present invention provides a technique to manufacture a display device, applying a means to form a pattern such as a contact hole formed in a semiconductor film, a wiring or an insulating film, or a mask pattern to form such a pattern by drawing directly, a means to remove a film, such as etching and ashing, and a film forming means to selectively form an insulating film, a semiconductor film and a metal film on a predetermined region.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: February 13, 2007
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yasuyuki Arai
  • Patent number: 7176070
    Abstract: An active matrix organic light emitting display (AM-OLED) and a method of forming the same. The AM-OLED has a plurality of pixel areas arranged in a matrix form. Each pixel area has at least two amorphous silicon TFTs, a display area and a light-shielding layer. The amorphous silicon TFT has an amorphous silicon layer serving as a channel region. The display area is formed by a transparent-conductive layer. The light-shielding layer covers at least the amorphous silicon layer of the amorphous silicon TFT and exposes the display area.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: February 13, 2007
    Assignee: AU Optronics Corp.
    Inventors: Hsin-Hung Lee, Chih-Feng Sung
  • Patent number: 7176071
    Abstract: A semiconductor device includes a semiconductor layer formed on part of an insulating layer. The semiconductor layer includes a diffusion region and a channel region. The insulating layer is etched so that the semiconductor layer is separated from the insulating layer below at least part of the diffusion region. The space left below this part of the semiconductor layer is filled by an etch stop film that also covers the side surfaces of the insulating layer. The etch stop film prevents contact holes targeted at the diffusion region from penetrating the insulating layer due to alignment error or defects in the semiconductor layer. Since the etch stop film is not present below the channel region, the electrical characteristics of the semiconductor device are not altered.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: February 13, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Shinobu Takehiro
  • Patent number: 7176072
    Abstract: A method of fabricating strained silicon devices for transfer to glass for display applications includes preparing a wafer having a silicon substrate thereon; forming a relaxed SiGe layer on the silicon substrate; forming a strained silicon layer on the relaxed SiGe layer; fabricating an IC device on the strained silicon layer; depositing a dielectric layer on the wafer to cover a gate module of the IC device; smoothing the dielectric; implanting ions to form a defect layer; cutting the wafer into individual silicon dies; preparing a glass panel and the silicon dies for bonding; bonding the silicon dies onto the glass panel to form a bonded structure; annealing the bonded structure; splitting the bonded structure along the defect layer; removing the remaining silicon layer from the silicon substrate and relaxed SiGe layer on the silicon die on the glass panel; and completing the glass panel circuitry.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: February 13, 2007
    Assignee: Sharp Laboratories of AMerica, Inc
    Inventors: Jong-Jan Lee, Jer-Shen Maa, Sheng Teng Hsu
  • Patent number: 7176073
    Abstract: The invention pertains to thin film constructions comprising NVRAM devices built over a versatile substrate base. In particular aspects, a device includes a body region, and further include first and second diffusion regions formed in the body region. A channel region is in the body region between the first and second diffusion regions. A gate insulator stack is above the channel region, and a gate is over the gate insulator stack. The gate insulator stack includes a floating plate charge center which is electrically connected to the second diffusion region. The memory device includes a diode which connects the body region to the second diffusion region such that the floating plate is charged when the diode is reversed biased. The invention also includes electronic systems comprising novel TFT-based NVRAM devices.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: February 13, 2007
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 7176074
    Abstract: A manufacturing method of thin film transistor array substrate is provided. A substrate, whereon first, second, and third poly-silicon islands, a gate insulating layer, a plurality of first, second, and third gates, and a first passivation layer have been formed, is provided. A third patterned photoresist layer is formed on the first passivation layer by using a third half-tone mask. A first ion implantation process is performed with the third patterned photoresist layer as mask to form first sources/drains. A portion of the thickness of the third patterned photoresist layer is removed, and then portions of the first passivation layer and the gate insulating layer are removed with the third patterned photoresist layer as mask to form the first patterned passivation layer. The third patterned photoresist layer is removed. First, second and third source/drain conductive layers, a second patterned passivation layer, and pixel electrodes are formed in sequence.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: February 13, 2007
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Fu-Yuan Shiau, Yu-Liang Wen
  • Patent number: 7176075
    Abstract: The present invention is a novel field effect transistor having a channel region formed from a narrow bandgap semiconductor film formed on an insulating substrate. A gate dielectric layer is formed on the narrow bandgap semiconductor film. A gate electrode is then formed on the gate dielectric. A pair of source/drain regions formed from a wide bandgap semiconductor film or a metal is formed on opposite sides of the gate electrode and adjacent to the low bandgap semiconductor film.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: February 13, 2007
    Assignee: Intel Corporation
    Inventors: Robert S. Chau, Doulgas Barlage, Been-Yih Jin
  • Patent number: 7176076
    Abstract: The present invention facilitates semiconductor fabrication by providing methods of fabrication that selectively form high-k dielectric layers within NMOS regions. An I/O dielectric layer is formed in core and I/O regions of a semiconductor device (506). The I/O dielectric layer is removed (508) from the core region of the device. A core dielectric layer is formed in the core region (510). A barrier layer is deposited and patterned to expose the NMOS devices of the core region (512). The core dielectric layer is removed from the core NMOS devices (514). A high-k dielectric layer is formed (514) over the core and I/O regions. Then, the high-k dielectric layer is removed (512) from PMOS regions/devices of the core region and the NMOS and PMOS regions/devices of the I/O region.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: February 13, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: James Joseph Chambers, Mark Robert Visokay, Luigi Colombo
  • Patent number: 7176077
    Abstract: Floating-gate memory cells having a trench source-line contact are suited for increased packing densities without a need for low-resistance ground straps placed at regular intervals across a memory array. Such floating-gate memory cells have their drain regions and source regions formed in a first semiconductor region having a first conductivity type. This first semiconductor region is separated from the underlying substrate by an interposing second semiconductor region having a second conductivity type different from the first conductivity type. The source regions of the memory cells are coupled to the second semiconductor region as a common source line. Such memory cells can be programmed, read and erased by applying various potential levels to their control gates, their drain regions, the first semiconductor region, and the second semiconductor region.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: February 13, 2007
    Assignee: Micron Technology, Inc.
    Inventor: Ebrahim Abedifard
  • Patent number: 7176078
    Abstract: In a nonvolatile semiconductor memory device having a memory cell array region and a strap region for providing voltage to the memory cell array region, in the memory cell array region, a plurality of word lines and a plurality of source lines are formed in a row direction, and one source line is formed between two word lines. In the strap region, the word lines and the source lines extend in the row direction and are collinear with, and without separation from, the word lines and the source lines of the memory cell array region, and each of the word lines and the source lines has a word line contact and a source line contact.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: February 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yonghee Kim
  • Patent number: 7176079
    Abstract: A method of fabricating a semiconductor device includes depositing a dielectric film and subjecting the dielectric film to a wet oxidation in a rapid thermal process chamber. The technique can be used, for example, in the formation of various elements in an integrated circuit, including gate dielectric films as well as capacitive elements. The tight temperature control provided by the RTP process allows the wet oxidation to be performed quickly so that the oxidizing species does not diffuse significantly through the dielectric film and diffuse into an underlying layer. In the case of capacitive elements, the technique also can help reduce the leakage current of the dielectric film without significantly reducing its capacitance.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: February 13, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Ronald A. Weimer, Scott J. DeBoer, Dan Gealy, Husam N. Al-Shareef
  • Patent number: 7176080
    Abstract: A method of fabricating a semiconductor device includes forming trenches in active areas respectively, the trenches having sidewalls and upper openings respectively, forming first conductive regions in the trenches so that the first conductive regions serve as electrodes of the trench capacitors, respectively, each first conductive region including first impurity of a predetermined conductive type, forming sidewall insulating films on the sidewalls located over the first conductive regions respectively, forming second conductive regions inside the sidewall insulating films respectively, removing the sidewall insulating film located above the second conductive regions respectively, doping regions of the substrate located under the gate electrodes with second impurity of a reverse conduction type relative to the first impurity in the second direction from the upper openings through portions of the trenches from which the sidewall insulating films have been removed respectively, and forming third conductive regi
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: February 13, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Itaru Kawabata, Hirofumi Inoue
  • Patent number: 7176081
    Abstract: A novel, low-temperature metal deposition method which is suitable for depositing a metal film on a substrate, such as in the fabrication of metal-insulator-metal (MIM) capacitors, is disclosed. The method includes depositing a metal film on a substrate using a deposition temperature of less than typically about 270 degrees C. The resulting metal film is characterized by enhanced thickness uniformity and reduced grain agglomeration which otherwise tends to reduce the operational integrity of a capacitor or other device of which the metal film is a part. Furthermore, the metal film is characterized by intrinsic breakdown voltage (Vbd) improvement.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: February 13, 2007
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Fu Chang, Yen-Hsiu Chen, Hung-Jen Lin, Ming-Chu King, Ching-Hwanq Su, Chih-Mu Huang, Yun Chang
  • Patent number: 7176082
    Abstract: A process for forming a capacitive structure that includes an upper layer having a first capacitor electrode section therein. A capacitor dielectric layer is formed adjacent the upper layer. The capacitor dielectric layer covers the first capacitor electrode section. A second capacitor electrode layer is formed adjacent the capacitor dielectric layer. The second capacitor electrode layer includes a second capacitor electrode section that at least partially covers the first capacitor electrode section, and which has an edge portion that extends beyond the underlying first capacitor electrode section. The capacitor dielectric layer being disposed between the first capacitor electrode section and the second capacitor electrode section. An upper dielectric layer is formed adjacent the second capacitor electrode section.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: February 13, 2007
    Assignee: LSI Logic Corporation
    Inventors: Todd A. Randazzo, Kenneth P. Fuchs, John de Q. Walker
  • Patent number: 7176083
    Abstract: An embedded flash cell structure comprising a structure, a first floating gate having an exposed side wall over the structure, a second floating gate having an exposed side wall over the structure and spaced apart from the first floating gate, a first pair of spacers over the respective first floating gate and the second floating gate, a second pair of spacers at least over the respective exposed side walls of the first and second floating gates, a source area in the structure between the second pair of spacers, a plug over the source implant, and first and second control gates outboard of the first pair of spacers and exposing outboard portions of the structure and respective drain areas in the exposed outboard portions of the structure is provided. A method of forming the embedded flash cell structure is also provided.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: February 13, 2007
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Der-Shin Shyu, Hung-Cheng Sung, Chen-Ming Huang
  • Patent number: 7176084
    Abstract: A self-aligned conductive spacer process for fabricating sidewall control gates on both sides of a floating gate for high-speed RAM applications, which can well define dimensions and profiles of the sidewall control gates. A conductive layer is formed on the dielectric layer to cover a floating gate patterned on a semiconductor substrate. Oxide spacer are formed on the conductive layer adjacent to the sidewalls of the floating gate. Performing an anisotropic etch process on the conductive layer and using the oxide spacers as a hard mask, a conductive spacers are self-aligned fabricated at both sides of the floating gate, serving as sidewall control gates.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: February 13, 2007
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tzyh-Cheang Lee, Fu-Liang Yang, Jiunn-Ren Hwang, Tsung-Lin Lee
  • Patent number: 7176085
    Abstract: A method of manufacturing a split gate type nonvolatile semiconductor memory device in which control gates are formed by a self aligning process.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: February 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-seog Jeon, Seung-beom Yoon
  • Patent number: 7176086
    Abstract: Field-effect transistors, select gates, and select lines have first and second conductive layers separated by an interlayer dielectric layer. A conductive strap is disposed on either side of the first and second conductive layers. Each strap electrically interconnects the first and second conductive layers.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: February 13, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Michael Violette, Mark A. Helm
  • Patent number: 7176087
    Abstract: In one aspect, the invention provides a method of forming an electrical connection in an integrated circuitry device. According to one preferred implementation, a diffusion region is formed in semiconductive material. A conductive line is formed which is laterally spaced from the diffusion region. The conductive line is preferably formed relative to and within isolation oxide which separates substrate active areas. The conductive line is subsequently interconnected with the diffusion region. According to another preferred implementation, an oxide isolation grid is formed within semiconductive material. Conductive material is formed within the oxide isolation grid to form a conductive grid therein. Selected portions of the conductive grid are then removed to define interconnect lines within the oxide isolation grid. According to another preferred implementation, a plurality of oxide isolation regions are formed over a semiconductive substrate.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: February 13, 2007
    Assignee: Micron Technology, Inc.
    Inventor: Wendell P. Noble
  • Patent number: 7176088
    Abstract: The invention relates to a bit line structure having a surface bit line (DLx) and a buried bit line (SLx), the buried bit line (SLx) being formed in a trench with a trench insulation layer (6) and being connected to doping regions (10) with which contact is to be made via a covering connecting layer (12) and a self-aligning terminal layer (13) in an upper partial region of the trench.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: February 13, 2007
    Assignee: Infineon Technologies, AG
    Inventors: Ronald Kakoschke, Danny Shum, Georg Tempel
  • Patent number: 7176089
    Abstract: A method of manufacturing provides a vertical transistor particularly suitable for high density integration and which includes potentially independent gate structures on opposite sides of a semiconductor pillar formed by etching or epitaxial growth in a trench. The gate structure is surrounded by insulating material which is selectively etchable to isolation material surrounding the transistor. A contact is made to the lower end of the pillar (e.g. the transistor drain) by selectively etching the isolation material selective to the insulating material. The upper end of the pillar is covered by a cap and sidewalls of selectively etchable materials so that gate and source connection openings can also be made by selective etching with good registration tolerance. A dimension of the pillar in a direction parallel to the chip surface is defined by a distance between isolation regions and selective etching and height of the pillar is defined by thickness of a sacrificial layer.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: February 13, 2007
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Mark C. Hakey, Steven J. Holmes, David V. Horak, James M. Leas, William H-L Ma, Paul A. Rabidoux
  • Patent number: 7176090
    Abstract: A method for making a semiconductor device is described. That method comprises forming on a substrate a dielectric layer and a sacrificial structure that comprises a first layer and a second layer, such that the second layer is formed on the first layer and is wider than the first layer. After the sacrificial structure is removed to generate a trench, a metal gate electrode is formed within the trench.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: February 13, 2007
    Assignee: Intel Corporation
    Inventors: Justin K. Brask, Jack Kavalieros, Mark L. Doczy, Matthew V. Metz, Suman Datta, Uday Shah, Brian S. Doyle, Robert S. Chau
  • Patent number: 7176091
    Abstract: Drain-extended MOS transistors (T1, T2) and semiconductor devices (102) are described, as well as fabrication methods (202) therefor, in which a p-buried layer (130) is formed prior to formation of epitaxial silicon (106) over a substrate (104), and a drain-extended MOS transistor (T1, T2) is formed in the epitaxial silicon layer (106). The p-buried layer (130) may be formed above an n-buried layer (120) in the substrate (104) for high-side driver transistor (T2) applications, wherein the p-buried layer (130) extends between the drain-extended MOS transistor (T2) and the n-buried layer (120) to inhibit off-state breakdown between the source (154) and drain (156).
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: February 13, 2007
    Assignee: Texas Instruments Incorporated
    Inventor: Sameer Pendharkar
  • Patent number: 7176092
    Abstract: A method for forming a gate electrode for a multiple gate transistor provides a doped, planarized gate electrode material which may be patterned using conventional methods to produce a gate electrode that straddles the active area of the multiple gate transistor and has a constant transistor gate length. The method includes forming a layer of gate electrode material having a non-planar top surface, over a semiconductor fin. The method further includes planarizing and doping the gate electrode material, without doping the source/drain active areas, then patterning the gate electrode material. Planarization of the gate electrode material may take place prior to the introduction and activation of dopant impurities or it may follow the introduction and activation of dopant impurities. After the gate electrode is patterned, dopant impurities are selectively introduced to the semiconductor fin to form source/drain regions.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: February 13, 2007
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Yee-Chia Yeo, Hao-Yu Chen, Fu-Liang Yang, Chenming Hu
  • Patent number: 7176093
    Abstract: Semiconductor processing methods of forming integrated circuitry are described. In one embodiment, memory circuitry and peripheral circuitry are formed over a substrate. The peripheral circuitry comprises first and second type MOS transistors. Second type halo implants are conducted into the first type MOS transistors in less than all of the peripheral MOS transistors of the first type. In another embodiment, a plurality of n-type transistor devices are formed over a substrate and comprise memory array circuitry and peripheral circuitry. At least some of the individual peripheral circuitry n-type transistor devices are partially masked, and a halo implant is conducted for unmasked portions of the partially masked peripheral circuitry n-type transistor devices. In yet another embodiment, at least a portion of only one of the source and drain regions is masked, and at least a portion of the other of the source and drains regions is exposed for at least some of the peripheral circuitry n-type transistor devices.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: February 13, 2007
    Assignee: Micron Technology, Inc.
    Inventor: Luan C. Tran
  • Patent number: 7176094
    Abstract: DPN (decoupled plasma nitridation) is used to improve robustness of ultra thin gate oxides. Conventionally, this is followed by an anneal in pure helium to remove structural defects in the oxide. However, annealing under these conditions has been found to cause a deterioration of the electrical performance of devices. This problem has been overcome by annealing, in a 1:4 oxygen-nitrogen mixture (1,050° C. at about 10 torr) instead of in helium or nitrogen oxide. This results in a gate oxide that is resistant to boron contamination without suffering any loss in its electrical properties.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: February 13, 2007
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Dong Zhong, Yun Ling Tan, Chew Hoe Ang, Jia Zhen Zheng
  • Patent number: 7176095
    Abstract: Methods of fabricating halo regions are provided. In one aspect, a method is provided of fabricating a first halo region and a second halo region for a circuit device of a first conductivity type and having a gate structure with first and second sidewalls. The first halo region of a second conductivity type is formed by implanting the substrate with impurities in a first direction toward the first sidewall of the gate structure. The second halo region of the second conductivity type is formed by implanting the substrate with impurities in a second direction toward the second sidewall of the gate structure. The first and second halo regions are formed without implanting impurities in a direction substantially perpendicular to the first and second directions.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: February 13, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Akif Sultan, David Wu, Wen-Jie Qi, Mark Fuselier
  • Patent number: 7176096
    Abstract: A method of forming a local interconnect for a semiconductor integrated circuit, the local interconnect comprising a refractory silicide contact having a substantially small sheet resistance formed at an exhumed surface of a gate stack, wherein the local interconnect electrically couples a gate electrode of the gate stack with an active region of the semiconductor substrate. The method of forming the local interconnect comprises depositing a gate oxide layer over the substrate, a first polysilicon layer over the gate oxide layer, a laterally conducting layer over the polysilicon layer, a second polysilicon layer over the laterally conducting layer, and an insulating layer over the second polysilicon layer. The intermediate structure is then etched so as to form a plurality of gate stacks. A surface of the second polysilicon layer of a gate stack is exhumed so as to allow subsequent formation of the refractory silicide contact at the exhumed surface.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: February 13, 2007
    Assignee: Micron Technology, Inc.
    Inventor: Jigish D. Trivedi
  • Patent number: 7176097
    Abstract: A semiconductor device is provided with a FET having a sufficiently small short channel effect and sufficiently small junction capacitance and junction leakage current. The FET includes a channel region formed in a silicon substrate, a gate electrode formed on the channel region through the intermediary of a gate insulting film, heavily doped regions, and pocket regions. The pocket regions are formed to extend from inside the heavily doped regions, respectively, over inside the channel region. Because a pocket sub-region inside the respective heavily doped regions is formed to be located in regions shallower than the respective lower end faces of the heavily doped regions, junction capacitance and junction leakage current are reduced. Further, because respective pocket sub-regions inside the channel region are formed in regions deeper than the respective pocket sub-regions inside the heavily doped regions, a short channel effect can be reduced.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: February 13, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Marie Hiraizumi
  • Patent number: 7176098
    Abstract: A heterojunction bipolar transistor comprises a collector layer, a base layer formed on the collector layer and an emitter layer formed on the base layer. The emitter layer includes a first semiconductor layer covering the entire top surface of the base layer and a second semiconductor layer formed on a predetermined part of the first semiconductor layer. An inactivated region is formed, by ion implantation, in a region of the collector layer located below the base layer except for a part thereof corresponding to the second semiconductor layer. The edge of the inactivated region is located away from the edge of the second semiconductor layer, and a region of the first semiconductor layer between the edge of the inactivated region and the edge of the second semiconductor layer is depleted.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: February 13, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keisuke Kojima, Toshiharu Tanbo, Keiichi Murayama
  • Patent number: 7176099
    Abstract: A hetero-junction bipolar transistor that satisfies high resistance required to avoid a potential breakdown includes: an n-type sub-collector layer 110 that is made of GaAs; an n-type first collector 121 that is made of a semiconductor material with a smaller avalanche coefficient than that of the sub-collector 110 and is formed on the sub-collector layer 110; a second collector layer 132 that is made of n-type or i-type GaAs with lower dopant concentration than that of the sub-collector layer 110 and is formed on the first collector layer 121; a p-type base layer 133 that is made of GaAs and is formed on the second collector layer 132; and emitter layer 134 that is made of a semiconductor material with a larger band gap than that of the base layer 133 and is formed on the base layer 133.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: February 13, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keiichi Murayama, Akiyoshi Tamura, Masanobu Nogome
  • Patent number: 7176100
    Abstract: A method is provided for manufacturing a capacitor including the steps of forming a lower electrode on a substrate, forming an insulation film formed of a perovskite type metal oxide on the lower electrode, and forming an upper electrode on the insulation film. The step of forming the insulation film includes the steps of coating a dispersion liquid in which fine crystal powder of a second metal oxide of a perovskite type in a liquid containing a precursor compound of a first metal oxide of a perovskite type on the lower electrode, and performing a heat treatment of the dispersion liquid after coating.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: February 13, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Motohisa Noguchi
  • Patent number: 7176101
    Abstract: A method is provided in which a first oxide layer is deposited on a silicon substrate and etched to form openings. A first silicon epitaxial layer is grown on the substrate in the openings, forming first active regions, a second oxide layer is deposited thereon, and the first and second oxide layers are etched such that the first oxide layer is wholly removed and the second oxide layer remains only on the first silicon epitaxial layer. A third oxide layer is thermally grown on entire resultant surfaces and then blanket-etched to remain only on sidewalls of the first silicon epitaxial layer. A second silicon epitaxial layer is grown on the exposed substrate between the first active regions, thus forming second active regions. The second oxide layer remaining on the first silicon epitaxial layer is removed. The first and second active regions are separated and electrically isolated by the third oxide layer.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: February 13, 2007
    Assignee: Dongbu Electronics
    Inventor: Hyuk Woo
  • Patent number: 7176102
    Abstract: A method for producing an SOI wafer by the hydrogen ion delamination method comprising at least a step of bonding a base wafer and a bond wafer having a micro bubble layer formed by gas ion implantation and a step of delaminating a wafer having an SOI layer at the micro bubble layer as a border, wherein, after the delamination step, the wafer having an SOI layer is subjected to a two-stage heat treatment in an atmosphere containing hydrogen or argon utilizing a rapid heating/rapid cooling apparatus (RTA) and a batch processing type furnace. Preferably, the heat treatment by the RTA apparatus is performed first. Surface roughness of an SOI layer surface delaminated by the hydrogen ion delamination method is improved over the range from short period to long period, and SOI wafers free from generation of pits due to COPs in SOI layers are efficiently produced with high throughput.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: February 13, 2007
    Assignee: Shin-Etsu Handotai Co., Ltd.
    Inventors: Hiroji Aga, Naota Tate, Susumu Kuwabara, Kiyoshi Mitani
  • Patent number: 7176103
    Abstract: The present invention provides a zeolite sol which can be formed into a porous film that can be thinned to an intended thickness by a method used in the ordinary semiconductor process, that excels in dielectric properties, adhesion, film consistency and mechanical strength, and that can be easily thinned; a composition for film formation; a porous film and a method for forming the same; and a high-performing and highly reliable semiconductor device which contains this porous film inside. More specifically, the zeolite sol is prepared by hydrolyzing and decomposing a silane compound expressed by a general formula: Si(OR1)4 (wherein R1 represents a straight-chain or branched alkyl group having 1 to 4 carbons, and when there is more than one R1, the R1s can be independent and the same as or different from each other) in a conventional coating solution for forming a porous film in the presence of a structure-directing agent and a basic catalyst; and then by heating the silane compound at a temperature of 75° C.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: February 13, 2007
    Assignees: Shin-Etsu Chemical Co. Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsutomu Ogihara, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasago
  • Patent number: 7176104
    Abstract: The present invention relates to a shallow trench isolation structure and a method for forming a shallow trench isolation structure on a semiconductor substrate. A masking structure that includes a hard mask is formed over the semiconductor substrate and an etch is performed so as to form trenches within the semiconductor substrate. A shallow trench isolation structure and a method for forming a shallow trench isolation structure are disclosed. Oxidation enhancing species are then implanted into the bottom surface of the trenches and an oxidation process is performed. The oxidation enhancing species will form a deep oxidation region below the bottom surface of each trench and will form thinner oxidation regions within side surfaces of trenches. A layer of dielectric material is then deposited to fill the trenches. A chemical mechanical polishing process is performed to remove those portions of the dielectric film that overlie the hard mask.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: February 13, 2007
    Assignee: Integrated Device Technology, Inc.
    Inventors: Chih-Hsiang Chen, Guo-Qiang Lo
  • Patent number: 7176105
    Abstract: A thin layer of silicon is deposited within a high aspect ratio feature to provide a template for selective deposition of oxide therein. In accordance with one embodiment, amorphous silicon is deposited within a shallow trench feature overlying an oxide liner grown therein. After exposure to sputtering to remove the amorphous silicon from outside of the trench, oxide is selectively deposited over the amorphous silicon to fill the trench from the bottom up without voids, thereby creating a shallow trench isolation (STI) structure. Deposition of the amorphous silicon or other silicon containing layers allows the selective oxide deposition step to be integrated with a thermally-grown oxide trench liner.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: February 13, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Srinivas Nemani, Shankar Venkataraman
  • Patent number: 7176106
    Abstract: A method for forming device packages includes forming a perimeter comprising a reactive foil and a bonding material interposed between a first wafer and a second wafer, pressing the first and the second wafers against the reactive foil and the bonding material, initiating the reactive foil, wherein the reactive foil heating the bonding material to create a bond between the first and the second wafers, and singulating the first and the second wafers into the device packages.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: February 13, 2007
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventors: Tanya Jegeris Snyder, Robert H. Yi, Robert Edward Wilson