Patents Issued in January 19, 2010
  • Patent number: 7648871
    Abstract: The present invention relates to an field effect transistor (FET) comprising an inverted source/drain metallic contact that has a lower portion located in a first, lower dielectric layer and an upper portion located in a second, upper dielectric layer. The lower portion of the inverted source/drain metallic contact has a larger cross-sectional area than the upper portion. Preferably, the lower portion of the inverted source/drain metallic contact has a cross-sectional area ranging from about 0.03 ?m2 to about 3.15 ?m2, and such an inverted source/drain metallic contact is spaced apart from a gate electrode of the FET by a distance ranging from about 0.001 ?m to about 5 ?m.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: January 19, 2010
    Assignee: International Business Machines Corporation
    Inventors: Michael P. Belyansky, Dureseti Chidambarrao, Lawrence A. Clevenger, Kaushik A. Kumar, Carl Radens
  • Patent number: 7648872
    Abstract: Methods of etching into silicon oxide-containing material with an etching ambient having at least 75 volume percent helium. The etching ambient may also include carbon monoxide, O2 and one or more fluorocarbons. The openings formed in the silicon oxide-containing material may be utilized for fabrication of container capacitors, and such capacitors may be incorporated into DRAM.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: January 19, 2010
    Assignee: Micron Technology, Inc.
    Inventor: Russell A. Benson
  • Patent number: 7648873
    Abstract: A method of forming a capacitor includes forming a first capacitor electrode over a semiconductor substrate. A capacitor dielectric region is formed onto the first capacitor electrode. The capacitor dielectric region has an exposed oxide containing surface. The exposed oxide containing surface of the capacitor dielectric region is treated with at least one of a borane or a silane. A second capacitor electrode is deposited over the treated oxide containing surface. The second capacitor electrode has an inner metal surface contacting against the treated oxide containing surface. Other aspects and implementations are contemplated.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: January 19, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Matthew W. Miller, Cem Basceri
  • Patent number: 7648874
    Abstract: In a method of manufacturing a dielectric structure, after a first dielectric layer is formed on a substrate by using a metal oxide doped with silicon, the substrate is placed on a susceptor of a chamber. By treating the first dielectric layer with a plasma in controlling a voltage difference between the susceptor and a ground, a second dielectric layer is formed on the first dielectric layer. The second dielectric layer including a metal oxynitride doped with silicon having enough content of nitrogen is formed on the first dielectric layer. Therefore, dielectric properties of the dielectric structure comprising the first and the second dielectric layers can be improved and a leakage current can be greatly decreased. By adapting the dielectric structure to a gate insulation layer and/or to a dielectric layer of a capacitor or of a non-volatile semiconductor memory device, capacitances and electrical properties can be improved.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: January 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Cheol Lee, Sung-Tae Kim, Young-Sun Kim, Cha-Young Yoo, Gab-Jin Nam, Young-Geun Park, Jae-Hyoung Choi, Jae-Hyun Yeo, Ha-Jin Lim, Yun-Seok Kim
  • Patent number: 7648875
    Abstract: A first interlayer dielectric is formed on a semiconductor substrate. A contact pad is formed to contact the substrate through the first interlayer dielectric. A bitline is formed on the first interlayer dielectric not to contact the contact pad. A second interlayer dielectric is formed and planarized to expose the top of the bitline. A protective layer is formed an entire surface of the resultant structure. A sacrificial layer is formed on the protective layer. The sacrificial layer, the protective layer, and the second interlayer dielectric are patterned between two adjacent bitlines to form a bottom electrode contact hole exposing the contact pad. A conductive layer is formed and planarized to form a bottom electrode contact plug filling the bottom electrode contact hole.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: January 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Seo Hong, Jung-Woo Seo, Jun-Sik Hong, Jeong-Sic Jeon
  • Patent number: 7648876
    Abstract: Embodiments relate to a flash memory device and a method of manufacturing a flash memory device that may improve a reliability of process by obtaining a Depth of Focus (DOF) in an exposure process. In embodiments, a method may include sequentially stacking an oxide film, a floating gate poly film, an ONO film, a control gate poly film, and a BARC (Bottom AntiReflect Coating) on a semiconductor substrate, forming a photoresist pattern for a stack gate on the BARC, and etching the BARC, the control gate poly film, the ONO film and the floating gate poly film at once by using the photoresist pattern until the oxide film is exposed.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: January 19, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Jeong-Yel Jang
  • Patent number: 7648877
    Abstract: A field effect transistor (FET) is formed as follows. A trench is formed in a silicon region. An oxidation barrier layer is formed over a surface of the silicon region adjacent the trench and along the trench sidewalls and bottom. A protective layer is formed over the oxidation barrier layer inside and outside the trench. The protective layer is partially removed such that a portion of the oxidation barrier layer extending at least along the trench bottom becomes exposed and portions of the oxidation barrier layer extending over the surface of the silicon region adjacent the trench remain covered by remaining portions of the protective layer.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: January 19, 2010
    Assignee: Fairchild Semiconductor Corporation
    Inventor: John Tracey Andrews
  • Patent number: 7648878
    Abstract: A pad oxide layer is formed on a substrate. A pad nitride layer is formed on the pad oxide layer. The pad nitride layer and the pad oxide layer are patterned. Predetermined portions of the substrate are etched using the pad nitride layer as an etch barrier to thereby form trenches used as device isolation regions. The trenches are filled with an insulation layer to thereby form device isolation regions. The pad nitride layer is removed. Recesses are formed by etching predetermined portions of the pad oxide layer and the substrate. The pad oxide layer is removed. A gate oxide layer is formed on the recesses and on the substrate. Gate structures of which bottom portions are buried in the recesses on the gate oxide layer are formed.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: January 19, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Tae-Woo Jung
  • Patent number: 7648879
    Abstract: A high-voltage transistor includes first and second trenches that define a mesa in a semiconductor substrate. First and second field plate members are respectively disposed in the first and second trenches, with each of the first and second field plate members being separated from the mesa by a dielectric layer. The mesa includes a plurality of sections, each section having a substantially constant doping concentration gradient, the gradient of one section being at least 10% greater than the gradient of another section. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: January 19, 2010
    Assignee: Power Integrations, Inc.
    Inventors: Sujit Banerjee, Donald Ray Disney
  • Patent number: 7648880
    Abstract: A double-gate field effect transistor (DGFET) structure and method of forming such a structure in which the parasitic capacitance under the source/drain regions is substantially reduced are provided. In the present invention, self-aligned isolation regions are provided to reduce the parasitic capacitance in the DGFET structure. Additionally, the present invention encapsulates the silicon-containing channel layer to enable the back-gate to be oxidized to a greater extent thereby reducing the parasitic capacitance of the structure even further.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: January 19, 2010
    Assignee: International Business Machines Corporation
    Inventors: Kevin K. Chan, Hussein I. Hanafi, Paul M. Solomon
  • Patent number: 7648881
    Abstract: A non-volatile memory device comprises a cell region defined at a substrate and a plurality of device isolation layers formed in the cell region to define a plurality of active regions. A charge storage insulator covers substantially the entire top surface of the cell region. A plurality of gate lines are formed on the charge storage insulator that cross over the device isolation layers. Conductive patterns are disposed between predetermined gate lines that penetrate the charge storage insulator to electrically connect with the active regions. According to the method of fabricating the device, a plurality of device isolation layers are formed in the substrate and then a charge storage insulator is formed on an entire surface of the substrate and the device isolation layers. A plurality of parallel gate lines that cross over the device isolation layers are formed on the charge storage insulator and then conductive patterns are formed between predetermined gate lines.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: January 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-Hyun Lee
  • Patent number: 7648882
    Abstract: A method for fabricating a silicon-oxide-nitride-oxide-silicon (SONOS) flash memory includes preparing a silicon substrate including a silicon oxide-silicon nitride-silicon oxide (ONO) layer, a first polysilicon layer and a first etch stop layer in sequence; etching the first etch stop layer along a direction of bit line; selectively etching the first polysilicon layer with the first etch stop layer as a mask, till the silicon oxide-silicon nitride-silicon oxide (ONO) layer is exposed, the etched first polysilicon layer having an inverse trapezia section along a direction of word line; and filling a dielectic layer between portions of the first polysilicon layer, the dielectric layer having a trapezia section along the direction of word line. After the above steps, it becomes easier to remove the portion of the first polysilicon layer on a sidewall of the dielectric layer by vertical etching.
    Type: Grant
    Filed: August 19, 2007
    Date of Patent: January 19, 2010
    Assignee: Semiconductors Manufacturing International (Shanghai) Corporation
    Inventors: Haitao Jiang, Xinsheng Zhong, Jiangpeng Xue, Gangning Wang
  • Patent number: 7648883
    Abstract: Integrated circuit field effect transistors are manufactured by forming a pre-active pattern on a surface of a substrate, while refraining from doping the pre-active pattern with phosphorus. The pre-active pattern includes a series of interchannel layers and channel layers stacked alternately upon each other. Source/drain regions are formed on the substrate, at opposite ends of the pre-active pattern. The interchannel layers are then selectively removed, to form tunnels passing through the pre-active pattern, thereby defining an active channel pattern including the tunnels and channels including the channel layers. The channels are doped with phosphorus after selectively removing the interchannel layers. A gate electrode is then formed in the tunnels and surrounding the channels.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: January 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jin-Jun Park
  • Patent number: 7648884
    Abstract: A resistive device (44) and a transistor (42) are formed. Each uses a portion of a metal layer (18) that is formed at the same time and thus additional process steps are avoided to remove the metal from the resistive device. The metal used in the resistive device is selectively treated to increase the resistance in the resistive device. A polycrystalline semiconductor material layer (34) overlies the metal layer in the resistive device. The combination of these layers provides the resistive device. In one form the metal is treated after formation of the polycrystalline semiconductor material layer. In one form the metal treatment involves an implant of a species, such as oxygen, to increase the resistivity of the metal. Various transistor structures are formed using the untreated portion of the metal layer as a control electrode.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: January 19, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Byoung W. Min, James K. Schaeffer, David C. Sing
  • Patent number: 7648885
    Abstract: A method for forming a misalignment inspection mark is disclosed. The formation method includes forming a reference layer device pattern and a first mark in a reference layer and forming an overlying layer device pattern and a second mark in a layer over the reference layer, the overlying layer device pattern corresponding to the reference layer. The second mark is formed by forming a second mark area adjacent to the first mark, the second mark area including an arrangement of a plurality of patterns having a line width, a pitch, and a pattern density at least one of which is equivalent to that of the overlying layer device pattern, and removing those of the plurality of patterns which are arranged at boundaries of the second mark area.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: January 19, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takashi Sato
  • Patent number: 7648886
    Abstract: A method of manufacturing an integrated circuit (IC) utilizes a shallow trench isolation (STI) technique. The shallow trench isolation technique is used in strained silicon (SMOS) process. The liner for the trench is formed to in a low temperature process which reduces germanium outgassing. The low temperature process can be a UVO, ALD, CVD, PECVD, or HDP process.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: January 19, 2010
    Assignee: Globalfoundries Inc.
    Inventors: Minh-Van Ngo, Qi Xiang, Paul R. Besser, Eric N. Paton, Ming-Ren Lin
  • Patent number: 7648887
    Abstract: A classification apparatus for the semiconductor substrate is provided with a bow measuring section which accepts silicon substrates and measures respective bows thereof. The classification apparatus is also provided with a bow judging section which, based on one or more standard value(s) set in advance, checks a measurement result by the bow measuring section against the standard value(s). The bow judging section judges to which of ranges defined based on the standard value(s) of the bow the measurement result by the bow measuring section belongs. Further, the classification apparatus is provided with a sorting section which accepts the silicon substrate having been measured by the bow measuring section and sorts the accepted silicon substrates based on the judgment results by the bow judging section. In other words, silicon substrates are grouped according to the bows by the sorting section. Then, respective silicon substrates are discharged in a grouped state.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: January 19, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Toshiya Sato, Katsuto Tanahashi
  • Patent number: 7648888
    Abstract: The invention relates to a method of splitting apart a substrate of two adjoining wafers defining between them a cleavage plane, by bringing each substrate into a substrate-receiving space; and clamping first and second jaw portions onto each substrate in such a manner as to hold each substrate and urge apart the two wafers of each substrate by co-operation between the shapes of housings in first and second portions of the two jaws, respectively. The invention also relates to a splitting method that includes bringing each substrate into a substrate-reception space; clamping together separator portions onto each substrate so as to split apart the two wafers of each substrate; and clamping the split-apart substrate wafers so as to hold the wafers together. An automated system for processing multiple substrates is also provided.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: January 19, 2010
    Assignee: S.O.I.Tec Silicon on Insulator Technologies
    Inventors: Thierry Barge, Walter Schwarzenbach, Jean-Marc Waechter, Thuan Truong, Bruno Ghyselen
  • Patent number: 7648889
    Abstract: A production method for devices includes: a bonding process for placing circuit surfaces of other divided plural semiconductor chips onto circuit surfaces of semiconductor chips of a wafer and bonding the other semiconductor chips to the semiconductor chips of the wafer; and a semiconductor chip grinding process for grinding rear surfaces of the other semiconductor chips by a grinding apparatus while the wafer is held such that the rear surface of the wafer faces a chuck table of the grinding apparatus. The production method further includes a resin filling process for filling a resin on the surface of the wafer so that a surface of the resin corresponds with the rear surfaces of the other semiconductor chips; and a wafer grinding process for grinding the rear surface of the wafer by a grinding apparatus while the wafer is held such that the surface of the wafer on which the resin is filled faces a chuck table of the grinding apparatus.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: January 19, 2010
    Assignee: Disco Corporation
    Inventor: Kazuma Sekiya
  • Patent number: 7648890
    Abstract: A process for producing a silicon wafer comprising a single-wafer etching step of performing an etching by supplying an etching solution through a supplying-nozzle to a surface of a single and a thin-discal wafer obtained by slicing a silicon single crystal ingot and rotating the wafer to spread the etching solution over all the surface of the wafer; and a grinding step of grinding the surface of the wafer, in this order, wherein the etching solution used in the single-wafer etching step is an aqueous acid solution which contains hydrogen fluoride, nitric acid, and phosphoric acid in an amount such that the content of which by weight % at a mixing rate of fluoric acid:nitric acid:phosphoric acid is 0.5 to 40%:5 to 50%:5 to 70%, respectively.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: January 19, 2010
    Assignee: Sumco Corporation
    Inventors: Sakae Koyata, Tomohiro Hashii, Katsuhiko Murayama, Kazushige Takaishi, Takeo Katoh
  • Patent number: 7648891
    Abstract: The invention is directed to an improved semiconductor chip that reduces crack initiation and propagation into the active area of a semiconductor chip. A semiconductor wafer includes dicing channels that separate semiconductor chips and holes through a portion of a semiconductor chip, which are located at the intersection of the dicing channels. Once diced from the semiconductor wafer, semiconductor chips are created without ninety degree angle corners.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: January 19, 2010
    Assignee: International Business Machines Corporation
    Inventors: Mukta G. Farooq, Dae-Young Jung, Ian D. Melville
  • Patent number: 7648892
    Abstract: Methods for depositing a microcrystalline silicon film layer with improved deposition rate and film quality are provided in the present invention. Also, a photovoltaic (PV) cell having a microcrystalline silicon film is provided. In one embodiment, the method produces a microcrystalline silicon film on a substrate at a deposition rate greater than about 20 nm per minute, wherein the microcrystalline silicon film has a crystallized volume between about 20 percent to about 80 percent.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: January 19, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Soo Young Choi, Takako Takehara, John M. White, Yong Kee Chae
  • Patent number: 7648893
    Abstract: A method for manufacturing a semiconductor including the steps of supplying a substrate having a support with one face supporting a strained silicon thin layer; forming a first mask on a portion of the strained silicon thin layer; epitaxy of Si1-xGex on the portion of the layer not masked by the first mask; condensating germanium to obtain a strained germanium layer, the strained germanium layer then covered by a silicon oxide layer; eliminating the first mask and of the silicon oxide layer thereby exposing a semi-conducting thin layer; forming a second mask on the semi-conducting thin layer exposed via the previous step, the second mask protecting a region of the exposing a remaining strained germanium portion; epitaxial growing germanium on the remaining strained germanium portion; and removing the second mask.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: January 19, 2010
    Assignee: Commissariat A l'Energie Atomique
    Inventors: Jean-Francois Damlencourt, Laurent Clavelier
  • Patent number: 7648894
    Abstract: The present invention relates to a coating composition for insulating film production, a preparation method of a low dielectric insulating film using the same, a low dielectric insulating film for a semiconductor device prepared therefrom, and a semiconductor device comprising the same, and more particularly to a coating composition for insulating film production having a low dielectric constant and that is capable of producing an insulating film with superior mechanical strength (elasticity), a preparation method of a low dielectric insulating film using the same, a low dielectric insulating film for a semiconductor device prepared therefrom, and a semiconductor device comprising the same. The coating composition of the present invention comprises an organic siloxane resin having a small molecular weight, and water, and significantly improves low dielectricity and mechanical strength of an insulating film.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: January 19, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Myung-Sun Moon, Min-Jin Ko, Hye-Yeong Nam, Jung-Won Kang, Bum-Gyu Choi, Byung-Ro Kim, Gwi-Gwon Kang, Young-Duk Kim, Sang-Min Park
  • Patent number: 7648895
    Abstract: A vertical CVD apparatus is arranged to process a plurality of target substrates all together to form a silicon germanium film. The apparatus includes a reaction container having a process field configured to accommodate the target substrates, and a common supply system configured to supply a mixture gas into the process field. The mixture gas includes a first process gas of a silane family and a second process gas of a germane family. The common supply system includes a plurality of supply ports disposed at different heights.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: January 19, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Masaki Kurokawa, Katsuhiko Komori, Norifumi Kimura, Kazuhide Hasebe, Takehiko Fujita, Akitake Tamura, Yoshikazu Furusawa
  • Patent number: 7648896
    Abstract: In deposited silicon, n-type dopants such as phosphorus and arsenic tend to seek the surface of the silicon, rising as the layer is deposited. When a second undoped or p-doped silicon layer is deposited on n-doped silicon with no n-type dopant provided, a first thickness of this second silicon layer nonetheless tends to include unwanted n-type dopant which has diffused up from lower levels. This surface-seeking behavior diminishes when germanium is alloyed with the silicon. In some devices, it may not be advantageous for the second layer to have significant germanium content. In the present invention, a first heavily n-doped semiconductor layer (preferably at least 10 at % germanium) is deposited, followed by a silicon-germanium capping layer with little or no n-type dopant, followed by a layer with little or no n-type dopant and less than 10 at % germanium. The germanium in the first layer and the capping layer minimizes diffusion of n-type dopant into the germanium-poor layer above.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: January 19, 2010
    Assignee: SanDisk 3D LLC
    Inventor: S. Brad Herner
  • Patent number: 7648897
    Abstract: To provide a method for manufacturing a wiring, a conductive layer, a display device, and a semiconductor device, each of which can meet a large sized substrate and which is manufactured with a higher throughput by using a material efficiently, the conductive layer is formed over the substrate having an insulating surface by discharging the conductive material, and heat treatment is performed by a lamp or a laser beam over the conductive layer. Furthermore, the conductive film is formed under reduced pressure according to the present invention.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: January 19, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yasuko Watanabe, Yasuyuki Arai
  • Patent number: 7648898
    Abstract: A method for fabricating a semiconductor device comprises depositing a first layer of oxide on at least a portion of a channel of a transistor. The method further comprises depositing a layer of nitride on the first layer of oxide and etching at least a portion of the layer of nitride to the first layer of oxide. The method further comprises depositing a second layer of oxide and planarizing the oxide to expose at least a portion of the layer of nitride. The method further comprises stripping at least a portion of the layer of nitride to create one or more notches and removing at least a portion of the first layer of oxide. The method further comprises depositing a layer of polysilicon, wherein at least a portion of the layer of polysilicon is deposited into at least one of the one or more notches.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: January 19, 2010
    Assignee: DSM Solutions, Inc.
    Inventor: Srinivasa R. Banna
  • Patent number: 7648899
    Abstract: Protective caps residing at an interface between metal lines and dielectric diffusion barrier (or etch stop) layers are used to improve electromigration performance of interconnects. Protective caps are formed by depositing a source layer of dopant-generating material (e.g., material generating B, Al, Ti, etc.) over an exposed copper line, converting the upper portion of the source layer to a passivated layer (e.g., nitride or oxide) while allowing an unmodified portion of a dopant-generating source layer to remain in contact with copper, and, subsequently, allowing the dopant from the unmodified portion of source layer to controllably diffuse into and/or react with copper, thereby forming a thin protective cap within copper line. The cap may contain a solid solution or an alloy of copper with the dopant.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: January 19, 2010
    Assignee: Novellus Systems, Inc.
    Inventors: Ananda Banerji, George Andrew Antonelli, Jennifer O'loughlin, Mandyam Sriram, Bart Van Schravendijk, Seshasayee Varadarajan
  • Patent number: 7648900
    Abstract: A method for forming electrical interconnects having different diameters and filler materials through a semiconductor wafer comprises forming first and second openings through a semiconductor, wherein the first opening has a narrower width (smaller diameter) than the second opening. A first conductive material is formed over the semiconductor wafer to completely fill the narrower opening and only partially fill the wider opening. The first conductive material is optionally removed from the wider opening using an isotropic etch. A second conductive material is subsequently formed over the semiconductor to completely fill the wider opening.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: January 19, 2010
    Assignee: Micron Technology, Inc.
    Inventor: Kyle K. Kirby
  • Patent number: 7648901
    Abstract: A manufacturing process and apparatus therefore are provided for processing an electronic device comprising oxidizable material during processing. The electronic device is located inside a chamber and is heated a processing temperature with a heater. A reductive atmosphere is created in the chamber by supplying a gas comprising glycolic acid vapor while processing the electronic device at the processing temperature.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: January 19, 2010
    Assignee: ASM Assembly Automation Ltd.
    Inventors: Ping Liang Tu, Deming Liu, Kui Kam Lam, Man Chung Raymond Ng
  • Patent number: 7648902
    Abstract: A method of manufacturing a redistribution circuit structure is provided. First, a substrate is provided. The substrate has a plurality of pads and a passivation layer. The passivation layer has a plurality of first openings exposing a portion of each of the pads, respectively. A first patterned photoresist layer is formed on the passivation layer. The first patterned photoresist layer has a plurality of second openings exposing a portion of each of the pads. A plurality of first bumps is formed in the second openings, respectively. An under ball metal (UBM) material layer is formed over the substrate to cover the first patterned photoresist layer and the first bumps. A plurality of conductive lines is formed on the UBM material layer. The UBM material layer is patterned to form a plurality of UBM layers using the conductive lines as a mask.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: January 19, 2010
    Assignee: ChipMOS Technologies (Bermuda) Ltd.
    Inventor: Xuan-Feng Lu
  • Patent number: 7648903
    Abstract: A semiconductor die includes a plurality of drivers and a plurality of bonding pads. Each driver is formed by a plurality of interconnected modules and has an associated bonding pad to which at least one of the modules of the driver is electrically connected. The modules of some of the drivers are positioned outside of the associated bonding pad toward a periphery of the die. The bonding pads may be arranged, for example, in a double- or triple-staggered pattern around the periphery of the die.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: January 19, 2010
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: James R. Emmert, Charles Evans, Michael Alvin Rencher, Haoran Duan
  • Patent number: 7648904
    Abstract: A metal line in a semiconductor device includes an insulation layer having trenches formed therein, a barrier metal layer formed over the insulation layer and the trenches, a metal layer formed over the barrier metal layer, wherein the metal layer fills the trenches, and an anti-galvanic corrosion layer formed on an interface between the metal layer and the barrier metal layer.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: January 19, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Young-Soo Choi, Gyu-Hyun Kim
  • Patent number: 7648905
    Abstract: The present invention provides a flash memory device and a method of forming the same. The method includes: forming an isolation layer and a plurality of gate lines on a semiconductor substrate; forming a source/drain region by ion-implanting impurities into the semiconductor substrate using the gate lines as a mask; forming a side oxide layer on sidewalls and surfaces of the gate lines; forming a side nitride layer on the side oxide layer; forming an insulation layer on the semiconductor substrate and the side nitride layer; forming a photosensitive layer pattern on the insulation layer; exposing the source region between the gate lines by etching the insulation layer using the photosensitive layer pattern as a mask; forming a polysilicon layer on the exposed source region and the insulation layer; and forming a source line by etching the polysilicon layer.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: January 19, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Sung-Jin Kim
  • Patent number: 7648906
    Abstract: A method and apparatus for processing a thin film able to easily form grooves in a conductive thin film on an insulating substrate, comprising bringing a first electrode into contact with the conductive thin film, maintaining a conductive state between a tip of a second electrode with a voltage applied with respect to the first electrode and the surface of the conductive thin film, and using the tip of the second electrode to scan the conductive thin film so as to thereby form grooves passing through the thickness of the conductive thin film and exposing the surface of the insulating substrate at their bottoms in the conductive thin film.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: January 19, 2010
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventors: Koji Takei, Sumihiro Ichikawa, Yasunari Suzuki, Ryo Fukasawa, Daisuke Matono
  • Patent number: 7648907
    Abstract: A substrate support (201) having a flat supporting surface (201a) is prepared, and a semiconductor substrate (1) is fixed to the substrate supporting surface (201) by attaching a wiring forming surface (1a) to the supporting surface (201a) by suction, for example, by vacuum suction. On this occasion, the wiring forming surface (1a) is forcibly flattened by being attached to the supporting surface (201a) by suction, and therefore the wiring forming surface (1a) becomes a reference plane for planarization of a back surface (1b). In this state, planarization processing is performed by mechanically grinding the back surface (1b) to grind away projecting portions (12) of the back surface (1b). Hence, variations in the thickness of the substrate (especially, semiconductor substrate) are made uniform, and high-speed planarization is realized easily and inexpensively without disadvantages such as dishing and without any limitation on a wiring design.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: January 19, 2010
    Assignee: Fujitsu Limited
    Inventors: Kanae Nakagawa, Masataka Mizukoshi, Kazuo Teshirogi
  • Patent number: 7648908
    Abstract: After a groove is formed in an insulating layer formed on a semiconductor substrate, a barrier metal layer is formed on the insulating layer by an ALD process so as to cover the side walls and bottom of the groove, and an impurity layer is formed in or on the surface of the barrier metal layer by an ion implantation process or by an ALD process. Thereafter, the barrier metal layer and the impurity layer are alloyed, and then an inlaid interconnect layer, which is composed of a Cu seed layer and a Cu plating layer, is formed in the groove. Then, an impurity element in the alloyed barrier metal layer is thermally diffused into the inlaid interconnect layer.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: January 19, 2010
    Assignee: Panasonic Corporation
    Inventor: Nobuo Aoi
  • Patent number: 7648909
    Abstract: A method for fabricating a semiconductor device includes forming an inter-layer insulation layer on a substrate; forming openings in the inter-layer insulation layer; forming a metal barrier layer in the openings and on the inter-layer insulation layer; forming a first conductive layer on the metal barrier layer and filled in the openings; etching the first conductive layer to form interconnection layers in the openings and to expose portions of the metal barrier layer, the interconnection layers being inside the openings and at a depth from a top of the openings; etching the exposed portions of the metal barrier layer to obtain a sloped profile of the metal barrier layer at top lateral portions of the openings; forming a second conductive layer over the inter-layer insulation layer, the interconnection layers and the metal barrier layer with the sloped profile; and patterning the second conductive layer to form metal lines.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: January 19, 2010
    Assignee: Hynix Semiconductor, Inc.
    Inventors: Hae-Jung Lee, Sang-Hoon Cho, Suk-Ki Kim
  • Patent number: 7648910
    Abstract: A method of manufacturing an opening is described. First, a substrate including a conductive portion and a dielectric layer both formed thereon is provided. The conductive portion at least includes a conductive layer and a passivation layer from bottom-up, and the dielectric layer covers the conductive portion. A first dry etching step is then performed to form an opening on the passivation layer by using a reactive gas containing a high polymer gas. The bottom of the opening has an initial dimension, and an obtuse angle is included by the bottom of the opening and an inner sidewall of the opening. Next, an opening enlarging step is performed to reach a target dimension of the bottom of the opening. The target dimension is larger than the initial dimension and to the least extent the conductive layer is not exposed by the opening.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: January 19, 2010
    Assignee: Winbond Electronics Corp.
    Inventors: Ching-Jen Han, Wen-Shun Lo, Yung-Han Chiu
  • Patent number: 7648911
    Abstract: A semiconductor die has a first insulating material disposed around a periphery of the die. A portion of the first insulating material is removed to form a through hole via (THV). Conductive material is deposited in the THV. A second insulating layer is formed over an active surface of the die. A first passive circuit element is formed over the second insulating layer. A first passive via is formed over the THV. The first passive via is electrically connected to the conductive material in the THV. The first passive circuit element is electrically connected to the first passive via. A third insulating layer is formed over the first passive circuit element. A second passive circuit element is formed over the third insulating layer. A fourth insulating layer is formed over the second passive circuit element. A plurality of semiconductor die is stacked and electrically interconnected by the conductive via.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: January 19, 2010
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Reza A. Pagaila, Byung Tai Do, Yaojian Lin
  • Patent number: 7648912
    Abstract: Disclosed herein is an integrated circuit customized by mask programming using custom conducting layers and via layers interspersed with the custom conducting layers, where the via layers are defined by masks designed prior to receiving a custom circuit design.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: January 19, 2010
    Inventor: Eric Dellinger
  • Patent number: 7648913
    Abstract: A film formation method is provided which includes positioning an object within an electroless deposition apparatus having means for instantaneous temperature control of the object and electrolessly depositing a material upon the object. More specifically, the method includes instantaneously changing the temperature of the object by the means of instantaneous control at one or more predetermined times during the step of electrolessly depositing the material, wherein the predetermined times correspond to different film-growth stages of the material.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: January 19, 2010
    Assignee: Lam Research Corporation
    Inventor: Igor C. Ivanov
  • Patent number: 7648914
    Abstract: Embodiments of the invention generally provide methods for etching a substrate. In one embodiment, the method includes determining a substrate temperature target profile that corresponds to a uniform deposition rate of etch by-products on a substrate, preferentially regulating a temperature of a first portion of a substrate support relative to a second portion of the substrate support to obtain the substrate temperature target profile on the substrate, and etching the substrate on the preferentially regulated substrate support. In another embodiment, the method includes providing a substrate in a processing chamber having a selectable distribution of species within the processing chamber and a substrate support with lateral temperature control, wherein a temperature profile induced by the substrate support and a selection of species distribution comprise a control parameter set, etching a first layer of material and etching a second layer of material respectively using different control parameter sets.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: January 19, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Thomas J. Kropewnicki, Theodoros Panagopoulos, Nicolas Gani, Wilfred Pau, Meihua Shen, John P. Holland
  • Patent number: 7648915
    Abstract: Some embodiments include methods of recessing multiple materials to a common depth utilizing etchant comprising C4F6 and C4F8. The recessed materials may be within isolation regions, and the recessing may be utilized to form trenches for receiving gatelines. Some embodiments include structures having an island of semiconductor material laterally surrounded by electrically insulative material. Two gatelines extend across the insulative material and across the island of semiconductor material. One of the gatelines is recessed deeper into the electrically insulative material than the other.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: January 19, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Larson Lindholm, Aaron R. Wilson, David K. Hwang
  • Patent number: 7648916
    Abstract: Methods for monitoring and detecting optical emissions while performing photoresist stripping and removal of residues from a substrate or a film stack on a substrate are provided herein. In one embodiment, a method is provided that includes positioning a substrate comprising a photoresist layer into a processing chamber; processing the photoresist layer using a multiple step plasma process; and monitoring the plasma for a hydrogen optical emission during the multiple step plasma process; wherein the multiple step plasma process includes removing a bulk of the photoresist layer using a bulk removal step; and switching to an overetch step in response to the monitored hydrogen optical emission.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: January 19, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Elizabeth G. Pavel, Mark N. Kawaguchi, James S. Papanu
  • Patent number: 7648917
    Abstract: A manufacturing method of a solid-state imaging device includes: forming a first and second insulating films having different properties on a silicon substrate such that they cover sides of gate electrodes formed on the silicon substrate; subjecting the second insulating film to selective etching, and forming sidewalls on the sides of the gate electrode; subjecting the gate electrode having the sidewalls formed to ion implantation; covering the gate electrode having the sidewalls formed and forming a third insulating film on the silicon substrate; covering with a mask material part of the gate electrodes covered with the third insulating film, and subjecting the substrate to etching to remove exposed third insulating film; and, after removing the mask material, forming a metal film capable of forming a silicide on the silicon substrate such that the metal film covers the gate electrodes and the third insulating film to form a silicide layer.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: January 19, 2010
    Assignee: Sony Corporation
    Inventors: Kai Yoshitsugu, Kenichi Chiba
  • Patent number: 7648918
    Abstract: Provided is a method of fabricating a semiconductor device. The method includes providing a substrate, forming a photo acid generator (PAG) layer on the substrate, exposing the PAG layer to radiation, and forming a photoresist layer on the exposed PAG layer. The exposed PAG layer generates an acid. The acid decomposes a portion of the formed photoresist layer. In one embodiment, the PAG layer includes organic BARC. The decomposed portion of the photoresist layer may be used as a masking element.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: January 19, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: George Liu, Kuei Shun Chen, Vencent Chang, Shang-Wen Chang
  • Patent number: 7648919
    Abstract: A method for defining patterns in an integrated circuit comprises defining a plurality of features in a first photoresist layer using photolithography over a first region of a substrate. The method further comprises using pitch multiplication to produce at least two features in a lower masking layer for each feature in the photoresist layer. The features in the lower masking layer include looped ends. The method further comprises covering with a second photoresist layer a second region of the substrate including the looped ends in the lower masking layer. The method further comprises etching a pattern of trenches in the substrate through the features in the lower masking layer without etching in the second region. The trenches have a trench width.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: January 19, 2010
    Inventors: Luan C. Tran, John Lee, Zengtao “Tony” Liu, Eric Freeman, Russell Nielsen
  • Patent number: 7648920
    Abstract: A method of manufacturing a semiconductor device includes the steps of: forming recesses (a via hole and wiring grooves) in a insulation film; forming a seal layer on inside surfaces of the recesses by using a gas based on a silane having an alkyl group as a precursor; applying EB-cure or UV-cure to the seal layer; and filling up the recesses with a conductor.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: January 19, 2010
    Assignee: Sony Corporation
    Inventor: Shinichi Arakawa