Patents Issued in March 18, 2008
-
Patent number: 7344936Abstract: A semiconductor wafer is provided with a wiring structure, and semiconductor chip positions arranged in rows and columns. The semiconductor wafer has at least one coating (6) as a self-supporting dimensionally stable substrate layer (4), and/or as a wiring structure composed of conductive, high-temperature-resistant material. The coating material (6) of the substrate layer (4) and/or of the wiring structure has a ternary carbide and/or a ternary nitride and/or carbon.Type: GrantFiled: June 28, 2006Date of Patent: March 18, 2008Assignee: Infineon Technologies AGInventors: Hans-Joachim Schulze, Helmut Strack
-
Patent number: 7344937Abstract: Exemplary embodiments of the invention provide pixel circuits having transistors with silicide on top of their gate stacks. In the exemplary embodiments, silicide forming material does not contaminate other components such as the photoconversion devices of an imager integrated circuit (IC). The photoconversion devices are blocked during silicide formation and are therefore not contaminated with silicide or metallic components. In other exemplary embodiments, each pixel of an imager also includes an optional in-pixel capacitor that has stabilized capacitance versus voltage characteristics due to its metal-dielectric-polysilicon structure, where the metal is a metal silicide over a conductive silicon layer.Type: GrantFiled: January 26, 2006Date of Patent: March 18, 2008Assignee: Micron Technology, Inc.Inventor: Sungkwon C. Hong
-
Patent number: 7344938Abstract: A method of fabricating a memory device is described. During the process of forming the memory cell area and the periphery area of a semiconductor device a photoresist layer is formed on the memory cell area before the spacers are formed on the sidewalls of the gates. Therefore, the memory cell area is prevented from being damaged to mitigate the leakage current problem during the process of forming spacers in the periphery circuit area.Type: GrantFiled: May 7, 2007Date of Patent: March 18, 2008Assignee: MACRONIX International Co., Ltd.Inventors: Kent Kuohua Chang, Jongoh Kim, Yider Wu
-
Patent number: 7344939Abstract: Ferroelectric memory cells (3) are presented, in which a cell resistor (R) is integrated into the cell capacitor (C) to inhibit charge accumulation or charge loss at the cell storage node (SN) when the cell (3) is not being accessed while avoiding significant disruption of memory cell access operations. Methods (100, 200) are provided for fabricating ferroelectric memory cells (3) and ferroelectric capacitors (C), in which a parallel resistance (R) is integrated in the capacitor ferroelectric material (20) or in an encapsulation layer (46) formed over the patterned capacitor structure (C).Type: GrantFiled: December 7, 2006Date of Patent: March 18, 2008Assignee: Texas Instruments IncorporatedInventors: Jarrod Randall Eliason, Glen R. Fox, Richard A. Bailey
-
Patent number: 7344940Abstract: Integrated circuit ferroelectric memory devices are provided that include an integrated circuit transistor. The memory device further includes a ferroelectric capacitor on the integrated circuit transistor. The ferroelectric capacitor includes a first electrode adjacent the transistor, a second electrode remote from the transistor and a ferroelectric film therebetween. The memory device further includes a plate line directly on the ferroelectric capacitor. Methods are also provided that include forming a ferroelectric capacitor on the integrated circuit transistor and forming a plate line directly on the ferroelectric capacitor.Type: GrantFiled: October 19, 2004Date of Patent: March 18, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Ho Kim, Ki-Nam Kim
-
Patent number: 7344941Abstract: Methods of manufacturing a metal-insulator-metal capacitor are provided.Type: GrantFiled: December 21, 2005Date of Patent: March 18, 2008Assignee: Dongbu Electronics Co., Ltd.Inventor: Jung-Gyu Kim
-
Patent number: 7344942Abstract: A hard mask layer is formed and patterned overlying a semiconductor substrate of a semiconductor device. The patterned hard mask layer exposes two or more areas of the substrate for future isolation regions of the semiconductor device. Portions of the substrate are removed in the areas for future isolation regions, thereby forming two or more trenches. A second mask layer is formed overlying a first portion of the hard mask layer and at least one first trench, and a second portion of the hard mask layer and at least one second trench are left uncovered. Additional substrate material is removed from the at least one second trench so that the at least one second trench is deeper than the at least one first trench. The hard mask layer and the second mask are removed substantially concurrently.Type: GrantFiled: January 26, 2005Date of Patent: March 18, 2008Assignee: Micron Technology, Inc.Inventor: Mark S. Korber
-
Patent number: 7344943Abstract: A semiconductor device is formed as follows. A plurality of trenches is formed in a silicon layer. An insulating layer filling an upper portion of each trench is formed. Exposed silicon is removed from adjacent the trenches to expose an edge of the insulating layer in each trench, such that the exposed edge of the insulating layer in each trench defines a portion of each contact opening formed between every two adjacent trenches.Type: GrantFiled: April 20, 2005Date of Patent: March 18, 2008Assignee: Fairchild Semiconductor CorporationInventors: Robert Herrick, Becky Losee, Dean Probst
-
Patent number: 7344944Abstract: A non-volatile memory device comprises a gate line that includes a gate dielectric layer, a bottom gate pattern, an inter-gate dielectric and a top gate pattern, which are sequentially stacked. The width of the inter-gate dielectric is narrower than that of the bottom gate pattern.Type: GrantFiled: January 27, 2006Date of Patent: March 18, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Kyu-Charn Park, Kwang-Shik Shin, Sung-Nam Chang
-
Patent number: 7344945Abstract: Embodiments of the present invention provide a striped or closed cell trench metal-oxide-semiconductor field effect transistor (TMOSFET). The striped or closed cell TMOSFET comprises a source region, a body region disposed above the source region, a drift region disposed above the body region, a drain region disposed above the drift region. A gate region is disposed above the source region and adjacent the body region. A gate insulator region electrically isolates the gate region from the source region, body region, drift region and drain region. The body region is electrically coupled to the source region.Type: GrantFiled: December 22, 2004Date of Patent: March 18, 2008Assignee: Vishay-SiliconixInventors: Deva Pattanayak, Jason (Jianhai) Qi, Yuming Bai, Kam-Hong Lui, Ronald Wong
-
Patent number: 7344946Abstract: A memory device including at least one first memory element comprising a first layer of amorphous carbon over at least one second memory element comprising a second layer of amorphous carbon. The device also includes at least one first conductive layer common to the at least one first and the at least one second memory elements.Type: GrantFiled: June 7, 2006Date of Patent: March 18, 2008Assignee: Micron Technology, Inc.Inventors: John Moore, Kristy A. Campbell, Joseph F. Brooks
-
Patent number: 7344947Abstract: Methods fabricate DEMOS devices having varied channel lengths and substantially similar threshold voltages. A threshold voltage is selected for first and second devices. First and second well regions are formed. First and second drain extension regions are formed within the well regions. First and second back gate regions are formed within the well regions according to the selected threshold voltage. First and second gate structures are formed over the first and second well regions having varied channel lengths. A first source region is formed in the first back gate region and a first drain region is formed in the first drain extension region. A second source region is formed in the second back gate region and a second drain region is formed in the drain extension region.Type: GrantFiled: April 27, 2006Date of Patent: March 18, 2008Assignee: Texas Instruments IncorporatedInventors: Victor Ivanov, Jozef Czeslaw Mitros
-
Patent number: 7344948Abstract: The invention encompasses a method of incorporating nitrogen into a silicon-oxide-containing layer. The silicon-oxide-containing layer is exposed to a nitrogen-containing plasma to introduce nitrogen into the layer. The nitrogen is subsequently thermally annealed within the layer to bond at least some of the nitrogen to silicon within the layer. The invention also encompasses a method of forming a transistor. A gate oxide layer is formed over a semiconductive substrate. The gate oxide layer comprises silicon dioxide. The gate oxide layer is exposed to a nitrogen-containing plasma to introduce nitrogen into the layer, and the layer is maintained at less than or equal to 400° C. during the exposing. Subsequently, the nitrogen within the layer is thermally annealed to bond at least a majority of the nitrogen to silicon. At least one conductive layer is formed over the gate oxide layer.Type: GrantFiled: January 15, 2002Date of Patent: March 18, 2008Assignee: Micron Technology, Inc.Inventors: Gurtej S. Sandhu, John T. Moore, Neal R. Rueger
-
Patent number: 7344949Abstract: A method of fabricating an a non-volatile memory includes forming trench isolation regions in an inactive region of a semiconductor substrate, adjacent trench isolation regions defining respective protrusions having rounded edges therebetween, wherein upper surfaces of the trench isolation regions are lower than an upper surface of the semiconductor substrate and wherein the protrusions define an active region, forming a tunnel insulating layer covering the protrusion of the semiconductor substrate, and forming, sequentially, a storage layer, a blocking insulating layer, and a gate layer covering the tunnel insulating layer.Type: GrantFiled: May 31, 2006Date of Patent: March 18, 2008Assignee: Samsung Electroncis Co., Ltd.Inventor: Tae-kwang Yoo
-
Patent number: 7344951Abstract: According to one embodiment of the invention, a surface preparation method for selective and non-selective epitaxial growth includes providing a substrate having a gate region, a source region, and a drain region, etching a first portion of the source region and the drain region, and removing a second portion of the source region and the drain region by a plasma comprising a noble gas and oxygen.Type: GrantFiled: September 13, 2004Date of Patent: March 18, 2008Assignee: Texas Instruments IncorporatedInventors: Patricia B. Smith, Majid M. Mansoori, Shirin Siddiqui
-
Patent number: 7344952Abstract: A process is described for wavelength conversion of LED light using phosphors. LED dies are tested for correlated color temperature (CCT), and binned according to their color emission. The LEDs in a single bin are mounted on a single submount to form an array of LEDs. Various thin sheets of a flexible encapsulant (e.g., silicone) infused with one or more phosphors are preformed, where each sheet has different color conversion properties. An appropriate sheet is placed over an array of LED mounted on a submount, and the LEDs are energized. The resulting light is measured for CCT. If the CCT is acceptable, the phosphor sheet is permanently laminated onto the LEDs and submount. The lamination encapsulates each LED to protect the LEDs from contaminants and damage. The LEDs in the array of LEDs on the submount are separated. By selecting a different phosphor sheet for each bin of LEDs, the resulting CCT is very uniform across all bins.Type: GrantFiled: October 28, 2005Date of Patent: March 18, 2008Assignee: Philips Lumileds Lighting Company, LLCInventor: Haryanto Chandra
-
Patent number: 7344953Abstract: On a substrate surface, which has been patterned in the form of a relief, of a substrate, typically of a semiconductor wafer, a deposition process is used to provide a covering layer on process surfaces which are vertical or inclined with respect to the substrate surface. The covering layer is patterned in a direction which is vertical with respect to the substrate surface by limiting a process quantity of at least one precursor material and/or by temporarily limiting the deposition process, and is formed as a functional layer or mask for subsequent process steps.Type: GrantFiled: January 26, 2005Date of Patent: March 18, 2008Assignee: Infineon Technologies, AGInventors: Thomas Hecht, Matthias Goldbach, Uwe Schröder
-
Patent number: 7344954Abstract: A substrate is provided having an oxide layer, a first nitride-silicon, a STI, and a second nitride-silicon. A pattern poly-silicon layer on the second nitride-silicon layer is etched to form a deep trench opening. Etching the pattern poly-silicon layer also deepens the deep trench opening. Then, a conductive layer is filled in the deep trench opening.Type: GrantFiled: January 3, 2006Date of Patent: March 18, 2008Assignee: United Microelectonics Corp.Inventors: Ta-Chuan Yeh, Ni-Min Chung, Kao-Su Huang, Yung-Chang Lin, Ruey-Chyr Lee, Chien-Kuo Wang
-
Patent number: 7344955Abstract: A method (and apparatus) of replicating a pattern on a structure, includes using imprint lithography to replicate a pattern formed on a first structure onto a portion of a second structure.Type: GrantFiled: November 19, 2004Date of Patent: March 18, 2008Assignee: International Business Machines CorporationInventors: Matthew E. Colburn, Yves C. Martin, Theodore G. van Kessel, Hematha K. Wickramasinghe
-
Patent number: 7344956Abstract: A multilayered integrated optical and circuit device. The device has a first substrate comprising at least one integrated circuit chip thereon, which has a cell region and a peripheral region. Preferably, the peripheral region has a bonding pad region, which has one or more bonding pads and an antistiction region surrounding each of the one or more bonding pads. The device has a second substrate with at least one or more deflection devices thereon coupled to the first substrate. At least one or more bonding pads are exposed on the first substrate. The device has a transparent member overlying the second substrate while forming a cavity region to allow the one or more deflection devices to move within a portion of the cavity region to form a sandwich structure including at least a portion of the first substrate, a portion of the second substrate, and a portion of the transparent member.Type: GrantFiled: December 8, 2004Date of Patent: March 18, 2008Assignee: Miradia Inc.Inventors: Xiao “Charles” Yang, Dongmin Chen, Philip Chen
-
Patent number: 7344957Abstract: A method (100) of forming a silicon-on-insulator (SOI) wafer includes forming one or more channels in a top surface of a first wafer (104), and forming an insulator layer on a second wafer (106). The second wafer is treated (108) to generate a structural weakness therein, and the first and second wafers together (110) are then bonded together so that the channels face the insulator layer. A portion of the second wafer is then removed (112) from the bonded first and second wafers at a location corresponding to the structure weakness.Type: GrantFiled: January 19, 2005Date of Patent: March 18, 2008Assignee: Texas Instruments IncorporatedInventor: Gabriel G. Barna
-
Patent number: 7344958Abstract: A method for producing a wafer bonded structure between (Al, In, Ga)N and Zn(S,Se). A highly reflective and conductive distributed Bragg reflector (DBR) for relatively short optical wave lengths can be fabricated using Zn(S,Se) and MgS/(Zn, Cd)Se materials. Using wafer bonding techniques, these high-quality DBR structures can be combined with a GaN-based optical device structure.Type: GrantFiled: July 6, 2005Date of Patent: March 18, 2008Assignees: The Regents of the University of California, Universitaet Bremen, Japan Science and Technology AgencyInventors: Akihiko Murai, Lee McCarthy, Umesh K. Mishra, Steven P. DenBaars, Carsten Kruse, Stephan Figge, Detlef Hommel
-
Patent number: 7344959Abstract: A method of fabricating a through via connection useful in providing a vertical wafer-to-wafer interconnect structure is provided as well as the vertical interconnect structure that is formed by this method. The method of the present invention using only a metal stud for the vertical connection therefore no alpha radiation is generated by the metal stud. The method of the present invention includes an inserting step, a heating step, a thinning step and backside processing.Type: GrantFiled: July 25, 2006Date of Patent: March 18, 2008Assignee: International Business Machines CorporationInventors: H. Bernhard Pogge, Roy R. Yu
-
Patent number: 7344960Abstract: A separation method by which a semiconductor package assemblage is cut in a predetermined width W1 along streets arranged in a lattice pattern to separate the semiconductor package assemblage into a plurality of semiconductor packages, the semiconductor package assemblage including a metallic frame having metallic die pads of a predetermined thickness placed in a plurality of rectangular regions defined by the streets, and metallic electrodes of a predetermined thickness placed in the streets and extending in the width direction of the streets, one surface of each die pad and one surface of each electrode being exposed on one surface of the semiconductor package assemblage, whereby each electrode has an intermediate portion in the extending direction removed, and has opposite end portions annexed to the adjacent semiconductor packages.Type: GrantFiled: March 21, 2007Date of Patent: March 18, 2008Assignee: Disco CorporationInventor: Takashi Watanabe
-
Patent number: 7344961Abstract: The present invention is directed to methods to produce, process, and exploit nanomaterials, and particularly elongated nanowire materials. The invention provides a method for producing nanowires that includes providing a thin film of a catalyst material with varying thickness on a substrate, heating the substrate and thin film, such that the thin film disassociates at the relatively thinner regions and vapor depositing a semiconductor onto the substrate to produce nanowires. A method is also provided in which two or more thin films of different materials are overlayed over a substrate, selectively etching the first underlying thin film to create a plurality of islands of the second thin film that mask portions of the first thin film and expose other portions and growing nanowires on the first thin film. Additional methods for producing nanowires are provided.Type: GrantFiled: April 29, 2005Date of Patent: March 18, 2008Assignee: Nanosys, Inc.Inventors: Linda T. Romano, James M. Hamilton
-
Patent number: 7344962Abstract: Disclosed is a method of manufacturing dual orientation wafers. A trench is formed in a multi-layer wafer to a silicon substrate with a first crystalline orientation. The trench is filled with a silicon material (e.g., amorphous silicon or polysilicon trench). Isolation structures are formed to isolate the silicon material in the trench from a semiconductor layer with a second crystalline orientation. Additional isolation structures are formed within the silicon material in the trench and within the semiconductor layer. A patterned amorphization process is performed on the silicon material in the trench and followed by a recrystallization anneal such that the silicon material in the trench recrystallizes with the same crystalline orientation as the silicon substrate. The resulting structure is a semiconductor wafer with isolated semiconductor areas on the same plane having different crystalline orientations as well as isolated sections within each semiconductor area for device formation.Type: GrantFiled: June 21, 2005Date of Patent: March 18, 2008Assignee: International Business Machines CorporationInventors: Brent A. Anderson, John J. Ellis-Monaghan, Alain Loiseau, Kirk D. Peterson
-
Patent number: 7344963Abstract: A semiconductor substrate having an integrated circuit die area surrounded by a scribe lane is provided. Within the integrated circuit die area, a first trench isolation region and a second trench isolation region are formed on the semiconductor substrate, wherein the first trench isolation region isolates a first active device region from a second active device region, and the second trench isolation region comprises a plurality of trench dummy features for reducing loading effect. A first gate electrode is formed on the first active device region and a second gate electrode on the second active device region. The first active device region is masked, while the second active device region and the trench dummy features are exposed. An ion implantation process is then performed to implant dopant species into the second active device region.Type: GrantFiled: April 20, 2006Date of Patent: March 18, 2008Assignee: United Microelectronics Corp.Inventors: Hsien-Chang Chang, Chia-Hsin Hou, Tsu-Yu Chu, Ko-Ting Chen
-
Patent number: 7344964Abstract: An image sensor includes: a first impurity region of the first conductive type aligned with one side of the gate structure and extending to a first depth from a surface portion of the semiconductor layer; a first spacer formed on each sidewall of the gate structure; a second impurity region of the first conductive type, aligned with the first spacer and extending to a second depth that is larger than the first depth from the surface portion of the semiconductor layer; a second spacer formed on each sidewall of the first spacer; a third impurity region of the first conductive type aligned with the second spacer and extending to a third depth that is larger than the second depth from the surface portion of the semiconductor layer; and a fourth impurity region of a second conductive type beneath the third impurity region.Type: GrantFiled: July 28, 2005Date of Patent: March 18, 2008Assignee: Magnachip Semiconductor, Ltd.Inventors: Jae-Young Park, Youn-Sub Lim
-
Patent number: 7344965Abstract: A method for making dual pre-doped gate stacks used in semiconductor applications such as complementary metal oxide semiconductor (CMOS) devices and metal oxide semiconductor field effect transistors (MOSFETs) is provided. The method involves providing at least one pre-doped conductive layer, such as poly silicon (poly-Si), on a gate stack and etching by exposing the conductive layer to an etching composition comprising at least one carbon containing gas. The carbon containing gas can be selected from gases having the general formula CxHy, such as, for example, CH4, C2H2, C2H4, and C2H6. The carbon containing gas can further be selected from gases having the general formula CxHyA, wherein A can represent one or more additional substituents selected from O, N, P, S, F, Cl, Br, and I. The processes can result in dual pre-doped gate stacks having essentially vertical sidewalls and further having a width of at least about 3 nm, such as from about 5 nm to about 150 nm.Type: GrantFiled: December 10, 2003Date of Patent: March 18, 2008Assignee: International Business Machines CorporationInventors: Ying Zhang, Timothy Joseph Dalton, Wesley Natzle
-
Patent number: 7344966Abstract: A manufacturing method for a power device integrated on a semiconductor substrate with double thickness of a gate dielectric layer is described, which comprises the following steps: forming first dielectric portions having a first thickness; forming on the whole semiconductor substrate a first dielectric layer thinner than the first dielectric portions; forming a conductive layer on the first dielectric layer; forming a second dielectric layer on the conductive layer; performing an etching step of the second dielectric layer and of the conductive layer to form first spacers and a gate electrode, to define, between the gate electrode and the substrate, second dielectric portions in the first dielectric layer, the second dielectric portions being auto-aligned with the first portions.Type: GrantFiled: July 29, 2004Date of Patent: March 18, 2008Assignee: STMicroelectronics S.r.l.Inventor: Giuseppe Currò
-
Patent number: 7344967Abstract: In a semiconductor light-emitting device, a buffer layer, a un-doped GaN layer, a high carrier concentration n+-layer, an n-type layer, an emission layer, a p-type layer, and a p-type contact layer are deposited in sequence on a sapphire substrate. The semiconductor light-emitting device includes a light-transparent electrode made of indium tin oxide (ITO) which is deposited in the low pressure vacuum chamber flowing at least oxygen gas through electron beam deposition or ion plating treatment, and a thermal process is carried out.Type: GrantFiled: September 29, 2005Date of Patent: March 18, 2008Assignee: Toyoda Gosei Co., Ltd.Inventors: Kazuhiro Yoshida, Yukitaka Hasegawa, Koji Kaga
-
Patent number: 7344968Abstract: Development efficiency and mass production efficiency of a semiconductor chip (LSI) is improved, whereby the LSI on which an integrated circuit is formed has plural pad parts connecting the integrated circuit with an external circuit. The pad part is provided with a first junction consisting of a window formed in the protective film and the pad exposed from the window, and a second junction consisting of a window formed in the protective film and a bump deposited on the pad exposed from the window. When it is required that the LSI is to be connected with an external circuit by wire bonding, the first junction is connected with the external circuit using a wire. When it is required to connect the LSI with an external circuit by the TAB method or the COG method, the second junction is directly connected to the external circuit.Type: GrantFiled: June 21, 2002Date of Patent: March 18, 2008Assignee: Oki Electric Industry Co., Ltd.Inventor: Masao Sasaki
-
Patent number: 7344969Abstract: Semiconductor devices and stacked die assemblies, and methods of fabrication are provided. In various embodiments, the die assembly comprises a first die mounted on a substrate and a second die mounted on the first die. In one embodiment, the second die has a recessed edge along the perimeter of the bottom surface to provide clearance for a bonding element extending from bond pads on the first die to pads on the substrate, thus eliminating the need for a spacer between the two dies. In another embodiment, the second die is at least partially disposed within a recess in the upper surface of the first die. In another embodiment, an adhesive element is disposed within a recess in the bottom surface of the first die for attaching the first die to the substrate. In yet another embodiment, the first die is at least partially disposed within a recess within the bottom surface of the second die. The stacked die assemblies can be encapsulated to form semiconductor packages.Type: GrantFiled: April 28, 2003Date of Patent: March 18, 2008Assignee: Micron Technology, Inc.Inventors: Hock Chuan Tan, Thiam Chye Lim, Victor Cher Khng Tan, Chee Peng Neo, Michael Kian Shing Tan, Beng Chye Chew, Cheng Poh Pour
-
Patent number: 7344970Abstract: Photoresist compositions and methods suitable for depositing a very thick photoresist layer in a single coating process are provided. Such photoresist layers are particularly suitable for use in chip scale packaging.Type: GrantFiled: April 7, 2003Date of Patent: March 18, 2008Assignee: Shipley Company, L.L.C.Inventors: Robert S. Forman, Jill E. Steeper, Eric C. Huenger
-
Patent number: 7344971Abstract: A manufacturing method of a semiconductor device comprises: (a) setting up a paste including a resin on an electrical connection part which is electrically connected to a semiconductor substrate; (b) setting up a soldering material above the electrical connection part so as to be in contact with the paste; and (c) forming an external terminal from the soldering material and forming a reinforcement from the paste by fusing the soldering material and the paste. The reinforcement exposes part of the external terminal and covers a periphery of an edge of a base connected to the electrical connection part of the external terminal.Type: GrantFiled: May 24, 2005Date of Patent: March 18, 2008Assignee: Seiko Epson CorporationInventor: Akiyoshi Aoyagi
-
Patent number: 7344972Abstract: The invention provides a layer of photosensitive material that may be directly patterned. The photosensitive material may then be decomposed to leave voids or air gaps in the layer. This may provide a low dielectric constant layer with reduced resistance capacitance delay characteristics.Type: GrantFiled: April 21, 2004Date of Patent: March 18, 2008Assignee: Intel CorporationInventors: Michael D. Goodner, Kevin P. O'Brien, Grant M. Kloster, Robert P. Meagley
-
Patent number: 7344973Abstract: Provided are a semiconductor device, adapted to be capable of fabricating the device having improved resistance characteristic by decreasing dishing of solid phase epitaxy (SPE) silicon during planarization in a landing plug forming process via use of SPE silicon, and a method of manufacturing the same. The method of manufacturing a semiconductor device in accordance with the present invention comprises, forming a plurality of gates on a semiconductor substrate; forming an interlayer dielectric film thereon, such that the gates are embedded; selectively etching the interlayer dielectric film to open a landing plug-forming region; depositing SPE silicon, such that the opened landing plug-forming region in the interlayer dielectric film is embedded; implanting boron ions into the SPE silicon; and annealing the resulting boron ion-implanted structure.Type: GrantFiled: November 2, 2005Date of Patent: March 18, 2008Assignee: Hynix Semiconductor Inc.Inventors: Kyung Ho Hwang, Won Mo Lee
-
Patent number: 7344974Abstract: A method for forming a metallization contact in a semiconductor device includes the steps of: (a) forming an insulating layer on a semiconductor substrate including an active device region; (b) forming a contact hole to expose a portion of the active device region by etching a portion of the insulating layer; (c) forming a CVD TiN layer on the insulating layer and inside the contact hole; (d) forming a PVD TiN layer on the CVD TiN layer using ionized metal plasma sputtering; and (e) forming a metal layer on the PVD TiN layer.Type: GrantFiled: December 29, 2005Date of Patent: March 18, 2008Assignee: Dongbu Electronics Co., Ltd.Inventor: Jung Joo Kim
-
Patent number: 7344975Abstract: A method of high aspect ratio contact etching a substantially vertical contact hole in an oxide layer using a hard photoresist mask is described. The oxide layer is deposited on an underlying substrate. A plasma etching gas is formed from a carbon source gas. Dopants are mixed into the gas. The doped plasma etching gas etches a substantially vertical contact hole through the oxide layer by doping carbon chain polymers formed along the sidewalls of the contact holes during the etching process into a conductive state. The conductive state of the carbon chain polymers reduces the charge buildup along sidewalls to prevent twisting of the contact holes by bleeding off the charge and ensuring proper alignment with active area landing regions. The etching stops at the underlying substrate.Type: GrantFiled: August 26, 2005Date of Patent: March 18, 2008Assignee: Micron Technology, Inc.Inventors: Gurtej S. Sandhu, Max F. Hineman, Daniel A. Steckert, Jingyi Bai, Shane J. Trapp, Tony Schrock
-
Patent number: 7344976Abstract: An adhesion layer composed of a titanium film and a titanium nitride film is formed by CVD on the inner wall of a contact hole formed in a multilayer film composed of an interlayer insulating film, a silicon nitride film, and a silicon dioxide film. Then, a conductive film made of tungsten or polysilicon is filled by CVD in the contact hole and the respective portions of the conductive film and the adhesion layer which are located over the silicon dioxide film are removed by CMP. Subsequently, the silicon dioxide film is removed by an etch-back method or a CMP method so that the silicon nitride film is exposed. This can prevent the delamination of the adhesion layer from the silicon nitride film as a hydrogen barrier film and also prevent the formation of a scratch in the silicon nitride film.Type: GrantFiled: March 17, 2006Date of Patent: March 18, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Yoshida, Takumi Mikawa
-
Patent number: 7344977Abstract: The invention includes methods of electrochemically treating semiconductor substrates. The invention includes a method of electroplating a substance. A substrate having defined first and second regions is provided. The first and second regions can be defined by a single mask, and accordingly can be considered to be self-aligned relative to one another. A first electrically conductive material is formed over the first region, and a second electrically conductive material is formed over the second region. The first and second electrically conductive materials are exposed to an electrolytic solution while providing electrical current to the first and second electrically conductive materials. A desired substance is selectively electroplated onto the first electrically conductive material during the exposing of the first and second electrically conductive materials to the electrolytic solution. The invention also includes methods of forming capacitor constructions.Type: GrantFiled: February 8, 2005Date of Patent: March 18, 2008Assignee: Micron Technology, Inc.Inventors: Dale W. Collins, Richard H. Lane, Rita J. Klein
-
Patent number: 7344978Abstract: A semiconductor device including at least one conductive structure is provided. The conductive structure includes a silicon-containing conductive layer, a refractory metal salicide layer and a protection layer. The refractory metal salicide layer is disposed over the silicon-containing conductive layer. The protection layer is disposed over the refractory metal salicide layer. Another semiconductor device including at least one conductive structure is also provided. The conductive structure includes a silicon-containing conductive layer, a refractory metal alloy salicide layer and a protection layer. The refractory metal alloy salicide layer is disposed over the silicon-containing conductive layer. The refractory metal alloy salicide layer is formed from a reaction of silicon of the silicon-containing conductive layer and a refractory metal alloy layer which includes a first refractory metal and a second refractory metal. The protection layer is disposed over the refractory metal alloy salicide layer.Type: GrantFiled: June 15, 2005Date of Patent: March 18, 2008Assignee: United Microelectronics Corp.Inventors: Yu-Lan Chang, Chao-Ching Hsieh, Yi-Yiing Chiang, Yi-Wei Chen, Tzung-Yu Hung
-
Patent number: 7344979Abstract: A copper film is annealed at high pressure to enhance grain growth and remove voids. Other films, such as dielectrics, may also be suitable. High pressure can be used in conjunction with temperatures lower than room temperature for annealing or higher temperatures may be used to further enhance grain growth.Type: GrantFiled: February 11, 2005Date of Patent: March 18, 2008Assignee: WaferMasters, Inc.Inventors: Woo Sik Yoo, Kitaek Kang
-
Patent number: 7344981Abstract: A multilayer electronic component includes a plurality of dielectric layers interleaved with a plurality of internal electrode elements and a plurality of internal anchor tabs. Portions of the internal electrode elements and anchor tabs are exposed along the periphery of the electronic component in one or more aligned columns. Each exposed portion is within a predetermined distance from other exposed portions in a given column such that bridged terminations may be formed by depositing one or more plated termination materials over selected of the respectively aligned columns. Internal anchor tabs may be provided and exposed in prearranged relationships with other exposed conductive portions to help nucleate metallized plating material along the periphery of a device. External anchor tabs or lands may be provided to form terminations that extend to top and/or bottom surfaces of the device.Type: GrantFiled: February 25, 2005Date of Patent: March 18, 2008Assignee: AVX CorporationInventors: Andrew P. Ritter, Robert Heistand, II, John L. Galvagni, Sriram Dattaguru, Jeffrey A. Horn, Richard A. Ladew
-
Patent number: 7344982Abstract: A chemical vapor deposition reaction system converts a reactant precursor, which includes the metal Ruthenium, to a vapor during a chemical reaction in order to deposit the metal on a semiconductor wafer. The reactant precursor is Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)(1,5-cyclooctadiene)Ru. An energy source provides energy to the reaction chamber to induce the chemical reaction. A controllable metering system alternatively supplies the precursor and oxygen to the reaction chamber. The precursor is supplied into the reaction chamber during a first phase and the oxygen is supplied into the reaction chamber during a second phase, which is non-overlapping with the first phase. A first pump/valve provides the precursor to the reaction chamber, and a second pump/valve provides the oxygen to the reaction chamber, each in response to a controller. The Ruthenium is selectively deposited on oxide sites patterned on a surface of the semiconductor wafer.Type: GrantFiled: November 23, 2004Date of Patent: March 18, 2008Assignee: Arizona Board of Regents, acting for and on behalf of Arizona State UniversityInventors: Jaydeb Goswami, Sandwip Kumar Dey
-
Patent number: 7344983Abstract: A cluster tool is provided for the implementing of a clustered and integrated surface pre-cleaning of the surface of semiconductor devices. More particularly, there is provided a cluster tool and a method of utilization thereof in an integrated semiconductor device surface pre-cleaning, which is directed towards a manufacturing aspect in which a chamber for performing a dry processing chemical oxide removal (COR) on the semiconductor device surface is clustered with other tools, such as a metal deposition tool for silicide or contact formation, including the provision of a vacuum transfer module in the cluster tool.Type: GrantFiled: March 18, 2005Date of Patent: March 18, 2008Assignee: International Business Machines CorporationInventors: Sadanand V. Deshpande, Ying Li, Kevin E. Mello, Renee T. Mo, Wesley C. Natzle, Kirk D. Peterson, Robert J. Purtell
-
Patent number: 7344984Abstract: A method and a semiconductor device are provided in which respective contact layers having a specific intrinsic stress may be directly formed on respective metal silicide regions without undue metal silicide degradation during an etch process for removing an unwanted portion of an initially deposited contact layer. Moreover, due to the inventive concept, the strain-inducing contact layers may be formed directly on the respective substantially L-shaped spacer elements, thereby enhancing even more the stress transfer mechanism.Type: GrantFiled: August 30, 2006Date of Patent: March 18, 2008Assignee: Advanced Micro Devices, Inc.Inventors: Jan Hoentschel, Andy Wei, Markus Lenski, Peter Javorka
-
Patent number: 7344985Abstract: The invention provides a semiconductor device, a method of manufacture therefore and a method for manufacturing an integrated circuit including the same. The semiconductor device, among other elements, may include a gate structure located over a substrate, the gate structure including a gate dielectric layer and gate electrode layer. The semiconductor device may further include source/drain regions located in/over the substrate and adjacent the gate structure, and a nickel alloy silicide located in the source/drain regions, the nickel alloy silicide having an amount of indium located therein.Type: GrantFiled: October 20, 2006Date of Patent: March 18, 2008Assignee: Texas Instruments IncorporatedInventors: Peijun J. Chen, Duofeng Yue, Amitabh Jain, Sue Crank, Thomas D. Bonifield, Homi Mogul
-
Patent number: 7344986Abstract: The present invention relates to a plating solution useful for forming embedded interconnects by embedding a conductive material in fine recesses for interconnects provided in the surface of a substrate, such as a semiconductor substrate, or for forming a protective layer for protecting the surface of embedded interconnects, a semiconductor device manufactured by using the plating solution and a method for manufacturing the semiconductor device. The plating solution contains copper ions, metal ions of a metal, and the metal is capable of forming with copper a copper alloy in which the metal does not form a solid solution with copper, a complexing agent, and a reducing agent free from alkali metal.Type: GrantFiled: November 6, 2002Date of Patent: March 18, 2008Assignee: Ebara CorporationInventors: Hiroaki Inoue, Xinming Wang, Moriji Matsumoto, Makoto Kanayama
-
Patent number: 7344987Abstract: The present invention relates to a method for performing chemical mechanical polishing. A high down-force step is performed. A low down-force step is performed. At least one of the down-force steps is modified, based on if one of the down-force steps exceeds an acceptable tolerance associated therewith. Other systems and methods are also disclosed.Type: GrantFiled: June 2, 2006Date of Patent: March 18, 2008Assignee: Texas Instruments IncorporatedInventors: Yaojian Leng, Nilesh Shantaram Doke, Stanley Monroe Smith