Patents Issued in September 25, 2007
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Patent number: 7273767Abstract: A method of making a package for an integrated circuit die. In one embodiment the method comprises providing a semiconductor wafer having a plurality of integrated circuit die formed thereon, each integrated circuit die having a first surface and a second surface opposite the first surface and a plurality of bonding pads formed on the first surface, prior to dicing the semiconductor wafer, selectively applying a curable material over a portion of the first surface of an integrated circuit die formed on the wafer without covering the plurality of bonding pads, curing the curable material and dicing the semiconductor wafer to separate the integrated circuit die from other integrated circuit die formed upon the wafer.Type: GrantFiled: May 4, 2005Date of Patent: September 25, 2007Assignee: Carsem (M) Sdn. Bhd.Inventors: King Hoo Ong, Lily Khor, Boon Pek Liew, Kai Choh Thong
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Patent number: 7273768Abstract: A wafer-level package and an IC module assembly method for a wafer-level package are provided in the present invention. The method comprises forming a metal bump on a wafer, applying a high polymer resin coating to the wafer, grinding a surface of the resin coating, printing an endpoint on the wafer, a grinding and cutting step and bonding the chips to an antenna or substrate with SMT. The present invention can be used to manufacture high quality chips of low cost with mass production to significantly reduce cost and maintain high quality of the products.Type: GrantFiled: August 30, 2005Date of Patent: September 25, 2007Assignee: Mutual-Pak Technology Co. Ltd.Inventor: Lu-Chen Hwan
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Patent number: 7273769Abstract: A method and apparatus for encapsulating microelectronic devices. In one embodiment, the method includes removing a portion of encapsulating material that at least partially surrounds a microelectronic substrate by directing a source of laser radiation toward the encapsulating material. The method can further include exposing a surface of the microelectronic substrate, for example, to enhance a rate at which heat is transferred away from the microelectronic substrate. Alternatively, the encapsulating material can be removed to form heat transfer structures, such as pins or ribs, also to enhance a rate at which heat is transferred away from the microelectronic substrate. In still another embodiment, a portion of the encapsulating material or a support member to which the substrate is attached can be removed to define interlocking features that allow one microelectronic substrate package to be stacked on another and to resist relative movement between the two packages.Type: GrantFiled: August 16, 2000Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventor: Joseph M. Brand
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Patent number: 7273770Abstract: A structure for a chip or chip package is disclosed, with final passivation and terminal metallurgy which are mechanically decoupled but electrically coupled to the multilayer on-chip interconnects. This decoupling allows the chip to survive packaging stresses in the final passivation region, with strain relief from the decoupling region and compliant leads therein, so that on-chip interconnect levels do not feel these external packaging or other stresses. This structure is particularly preferred for on-chip interconnects consisting of Cu and low-k dielectric, the latter having inferior mechanical properties relative to SiO2. The decoupled region extends over all chips on the wafer. It may also extend into the edgeseal or dicing channel region so as to allow chip dicing and retention of this mechanical decoupling all around every chip on the wafer.Type: GrantFiled: August 16, 2006Date of Patent: September 25, 2007Assignee: International Business Machines CorporationInventors: Daniel C. Edelstein, Lee M. Nicholson
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Patent number: 7273771Abstract: A core process is described for the manufacture of a Schottky, MOSFET or Accufet, using a plurality of identical manufacturing steps, including spaced trenches, in a single production line, with the device type to be produced being defined at an implant and diffusion stage for forming very low concentration mesas for a Schottky; higher concentration mesas with source regions for Accufet devices and a channel implant and source implant for a vertical conduction MOSFET.Type: GrantFiled: February 9, 2005Date of Patent: September 25, 2007Assignee: International Rectifier CorporationInventor: Daniel M. Kinzer
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Patent number: 7273772Abstract: The present invention relates to a method of manufacturing a thin film transistor array panel and apparatus and more particularly to an apparatus containing an in-situ fluorine generation chamber.Type: GrantFiled: June 16, 2004Date of Patent: September 25, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Won-Kie Chang, Jin-Wook Lee, Won Song, Jeong-Sik Yoo, You-Keun Kim, Dong-Uk Choi
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Patent number: 7273773Abstract: The invention provides a display device and a method for manufacturing thereof by increasing a material efficiently as well as simplifying steps. Also, the invention provides a technique for forming a pattern such as a wiring, that is used for forming a display device, to have a predetermined shape with an excellent controllability. The method for manufacturing a display device includes the steps of: forming a lyophobic region; selectively irradiating laser beam in the lyophobic region to form a lyophilic region; selectively discharging a composition, that contains a conductive material, in the lyophilic region to form a gate electrode layer; forming a gate insulating layer and a semiconductor layer over the gate electrode layer; discharging a composition containing a conductive material over the semiconductor layer to form a source electrode layer and a drain electrode layer; and forming a pixel electrode layer on the source or drain electrode layer.Type: GrantFiled: January 26, 2005Date of Patent: September 25, 2007Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Osamu Nakamura, Shinji Maekawa, Gen Fujii, Toshiyuki Isa
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Patent number: 7273774Abstract: A method for making a thin-film semiconductor device includes an annealing step of irradiating an amorphous semiconductor thin film with a laser beam so as to crystallize the amorphous semiconductor thin film. In the annealing step, the semiconductor thin film is continuously irradiated with the laser beam while shifting the position of the semiconductor thin film irradiated with the laser beam at a predetermined velocity so that excess hydrogen can be removed from the region irradiated with the laser beam without evaporating and expanding hydrogen ions in the semiconductor thin film.Type: GrantFiled: September 27, 2005Date of Patent: September 25, 2007Assignee: Sony CorporationInventors: Akio Machida, Hirotaka Akao, Takahiro Kamei, Isamu Nakao
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Patent number: 7273775Abstract: According to one exemplary embodiment, a method of fabricating a virtual ground memory array includes forming a number of polysilicon segments on a gate dielectric layer, where the gate dielectric layer is situated on a substrate. The method further includes forming a number of bitlines in the substrate, where each of the bitlines is situated adjacent to at least one of the polysilicon segments, and where the bitlines are formed after the polysilicon segments. The method further includes forming a gap-filling dielectric segment over each of the bitlines. The method can further include removing the masking layer and a portion of the gap-filling dielectric segment, depositing an interpoly dielectric layer on the polysilicon segments and on a remaining portion of the gap-filling dielectric segment, and forming a second polysilicon layer on the interpoly dielectric layer.Type: GrantFiled: October 4, 2005Date of Patent: September 25, 2007Assignee: Spansion LLCInventor: Hiroyuki Ogawa
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Patent number: 7273776Abstract: The present invention is generally directed to a method of forming a p-well in an integrated circuit device. In one illustrative embodiment, the method comprises forming a first layer of epitaxial material above an active layer of a substrate, forming a first doped region in the first layer of epitaxial material, forming a second layer of epitaxial material above the first layer of epitaxial material, forming a second doped region in the second layer of epitaxial material, and performing at least one heat treating process.Type: GrantFiled: July 27, 2004Date of Patent: September 25, 2007Assignee: Legerity, Inc.Inventors: Ranadeep Dutta, Frank L. Thiel
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Patent number: 7273777Abstract: A method for forming a semiconductor device structure, comprising the steps of independently forming source/drain surface metal silicide layers and a fully silicided metal gate in a polysilicon gate stack. Specifically, one or more sets of spacer structures are provided along sidewalls of the polysilicon gate stack after formation of the source/drain surface metal silicide layers and before formation of the silicided metal gate, in order to prevent formation of additional metal silicide structures in the source/drain regions during the gate salicidation process. The resulting semiconductor device structure includes a fully silicide metal gate that either comprises a different metal silicide material from that in the source/drain surface metal silicide layers, or has a thickness that is larger than that of the source/drain surface metal silicide layers. The source/drain regions of the semiconductor device structure are devoid of other metal silicide structures besides the surface metal silicide layers.Type: GrantFiled: August 2, 2005Date of Patent: September 25, 2007Assignee: International Business Machines CorporationInventors: Glenn A. Biery, Ghavam Shahidi, Michelle L. Steen
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Patent number: 7273778Abstract: 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: September 25, 2007Assignee: Micron Technology, Inc.Inventors: Dale W. Collins, Richard H. Lane, Rita J. Klein
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Patent number: 7273779Abstract: A method of forming a double-sided capacitor using at least one sacrificial structure, such as a sacrificial liner or a sacrificial plug. A sacrificial liner is formed along sidewalls of at least one opening in an insulating layer on a semiconductor wafer. A first conductive layer is then formed over the sacrificial liner. The sacrificial liner is then selectively removed to expose a first surface of the first conductive layer without damaging exposed components on the semiconductor wafer. Removing the sacrificial liner forms an open space adjacent to the first surface of the first conductive layer. A dielectric layer and a second conductive layer are formed in the open space, producing the double-sided capacitor. Methods of forming a double-sided capacitor having increased capacitance and a contact are also disclosed. In addition, an intermediate semiconductor device structure including at least one sacrificial structure is also disclosed.Type: GrantFiled: May 4, 2005Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventors: Fred Fishburn, Forest Chen, John M. Drynan
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Patent number: 7273780Abstract: A method of forming box-shaped cylindrical storage nodes includes forming an interlayer insulating layer on a semiconductor substrate. Buried contact plugs are formed to penetrate the interlayer insulating layer. A molding layer and a photoresist layer are then sequentially formed on the substrate. Using a first phase shift mask having line-and-space patterns, the photoresist layer is exposed, forming first exposure regions. Using a second phase shift mask having line-and-space patterns, the photoresist layer is exposed again, forming second exposure regions intersecting the first exposure regions. The photoresist layer is then developed, forming a photoresist pattern having rectangular-shaped openings formed at intersections of the first and the second exposure regions. The molding layer is etched using the photoresist pattern as an etch mask, forming storage node holes exposing the buried contact plugs. Storage nodes are formed inside the storage node holes.Type: GrantFiled: May 26, 2005Date of Patent: September 25, 2007Assignee: Samsung Electronics Co., Ltd.Inventor: Sang-Ho Kim
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Patent number: 7273781Abstract: To form a capacitor in a semiconductor device, an etching barrier layer and a mold insulating layer are sequentially formed on an interlayer insulating film having a contact plug. A hole exposing the contact plug is formed by etching the mold insulating layer and the etching barrier layer. A first blocking layer having a wet etching rate lower than that of the mold insulating layer is formed on the hole sidewall. A storage electrode and a second blocking layer made from the identical material of the first blocking layer are formed on the resultant structure. The predetermined portions of the second blocking layer and the metal layer formed on the mold insulating layer are removed. A cylinder type storage electrode is formed by wet etching the mold insulating layer. A dielectric layer is formed on the cylinder type storage electrode. A plate electrode is formed on the dielectric layer.Type: GrantFiled: October 20, 2005Date of Patent: September 25, 2007Assignee: Hynix Semiconductor Inc.Inventor: Kee Jeung Lee
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Patent number: 7273782Abstract: A method for manufacturing and operating a nonvolatile memory in which a floating gate is formed on a silicon substrate to reduce the difference in heights between a memory region and a logic region so that a process margin is assured.Type: GrantFiled: July 13, 2005Date of Patent: September 25, 2007Assignee: Magnachip Semiconductor, Ltd.Inventor: Hak Yun Kim
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Patent number: 7273783Abstract: A method of forming a semiconductor device includes forming an insulating layer on a semiconductor substrate. The insulating layer has a trench therein with opposing sidewalls and a bottom surface. A first conductive layer is formed on the sidewalls and on the bottom surface of the trench to define a gap region. A portion of the first conductive layer is removed to thereby increase a width of the gap region. The first conductive layer may be removed from the sidewalls and the bottom surface of the trench such that an upper width of the gap region is greater than or equal to a lower width of the gap region. A second conductive layer is formed in the gap region after removing the portion of the first conductive layer to fill the gap region.Type: GrantFiled: December 21, 2004Date of Patent: September 25, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Won Kim, Jong-Ho Park, Jung-Dal Choi
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Patent number: 7273784Abstract: A plurality of split gate non-volatile memory cells are formed vertically in a trench along the sidewalls. Each cell is comprised of a bistable element and an adjacent fixed gate threshold element that share a common respective control gate/access gate. The bistable element has a gate insulator stack that is comprised of either a floating gate or a charge trapping layer over a tunnel insulator. A plurality of silicon rich nitride layers are formed over the floating gate or charge trapping layer and separated by a high dielectric constant layer.Type: GrantFiled: May 17, 2006Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventor: Arup Bhattacharyya
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Patent number: 7273785Abstract: A method of forming a silicon-on-insulator (SOI) metal oxide semiconductor field effect transistor (MOSFET) device is provided in which an implanted back-gate is formed into a Si-containing layer of an SOI wafer. The implanted back-gate thus formed is capable of controlling the threshold voltage of a polysilicon-containing front-gate which is formed over a portion of the implanted back-gate region. The implanted back-gate functions as a dynamic threshold voltage control system in the SOI MOSFET device because it is suitable for use during circuit/system active periods and during circuit/system idle periods.Type: GrantFiled: October 15, 2004Date of Patent: September 25, 2007Assignee: International Business Machines CorporationInventors: Robert H. Dennard, Wilfried E. Haensch, Hussein I. Hanafi
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Patent number: 7273786Abstract: In order to be able to store information in a non-volatile fashion as compactly and as flexibly as possible in a semiconductor memory cell, the original gate region of a conventional memory transistor is removed, and a memory gate configuration having a plurality of memory gates that are spatially separate from one another and that are electrically insulated with respect to one another is formed.Type: GrantFiled: December 22, 2004Date of Patent: September 25, 2007Assignee: Infineon Technologies AGInventor: Thomas Mikolajick
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Patent number: 7273787Abstract: A method for manufacturing a gate dielectric layer is provided. A substrate divided into at least a high voltage circuit region and a low voltage circuit region is provided. A first dielectric layer serving as gate dielectric layer in the high voltage circuit region is formed on the substrate. A mask layer is formed over the first dielectric layer. The mask layer, the first dielectric layer and the substrate are patterned to form trenches in the substrate. An isolation layer is formed to fill the trenches. The mask layer and part of the isolation layer are removed to expose the surface of the first dielectric layer. The first dielectric layer of the low voltage circuit region is removed to expose the surface of the substrate. A second dielectric layer having a thickness smaller than the first dielectric layer is formed on the substrate in the low voltage circuit region.Type: GrantFiled: November 18, 2005Date of Patent: September 25, 2007Assignee: Powerchip Semiconductor Corp.Inventors: Wen-Ji Chen, Tung-Po Chen, Kai-An Hsueh, Sheng-Hone Zheng
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Patent number: 7273788Abstract: A method for forming a semiconductor on insulator structure includes providing a glass substrate, providing a semiconductor wafer, and performing a bonding cut process on the semiconductor wafer and the glass substrate to provide a thin semiconductor layer bonded to the glass substrate. The thin semiconductor layer is formed to a thickness such that it does not yield due to temperature-induced strain at device processing temperatures. An ultra-thin silicon layer bonded to a glass substrate, selected from a group consisting of a fused silica substrate, a fused quartz substrate, and a borosilicate glass substrate, provides a silicon on insulator wafer in which circuitry for electronic devices is fabricated.Type: GrantFiled: May 21, 2003Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventor: Leonard Forbes
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Patent number: 7273789Abstract: Provided is a method of fabricating a heterojunction bipolar transistor (HBT). The method includes: sequentially depositing a sub-collector layer, a collector layer, a base layer, an emitter layer, and an emitter capping layer on a substrate; forming an emitter electrode on the emitter capping layer; forming a mesa type emitter to expose the base layer by sequentially etching the emitter capping layer and the emitter layer using the emitter electrode as an etch mask in vertical and negative-sloped directions to the substrate, respectively; and forming a base electrode on the exposed base layer using the emitter electrode as a mask in self-alignment with the emitter electrode. In this method, a distance between the mesa type emitter and the base electrode can be minimized and reproducibly controlled. Also, a self-aligned device with an excellent high-frequency characteristic can be embodied.Type: GrantFiled: September 15, 2005Date of Patent: September 25, 2007Assignee: Electronics and Telecommunications Research InstituteInventors: Byoung Gue Min, Jong Min Lee, Seong Il Kim, Chul Won Ju, Kyung Ho Lee
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Patent number: 7273790Abstract: Fabricating a trench capacitor with an insulation collar in a substrate, which is electrically connected thereto on one side through a buried contact, in particular, for a semiconductor memory cell with a planar selection transistor in the substrate and connected through the buried contact, includes providing a trench using an opening in a hard mask, providing a capacitor dielectric in lower and central trench regions, the collar in central and upper trench regions, and a conductive filling at least as far as the insulation collar topside, completely filling the trench with a filling material, carrying out STI trench fabrication process, removing the filling material and sinking the filling to below the collar topside, forming an insulation region on one side above the collar; uncovering a connection region on a different side above the collar, and forming the buried contact by depositing and etching back a metallic filling.Type: GrantFiled: July 27, 2004Date of Patent: September 25, 2007Assignee: Infineon Technologies AGInventors: Stephan Kudelka, Martin Popp, Harald Seidl, Annette Sänger
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Patent number: 7273791Abstract: A method for forming a metal/metal oxide structure that includes forming metal oxide regions, e.g. ruthenium oxide regions, at grain boundaries of a metal layer, e.g., platinum. Preferably, the metal oxide regions are formed by diffusion of oxygen through grain boundaries of the metal layer, e.g., platinum, to oxidize a metal layer thereon, e.g, ruthenium layer. The structure is particularly advantageous for use in capacitor structures and memory devices, such as dynamic random access memory (DRAM) devices.Type: GrantFiled: September 24, 2003Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventors: Cem Basceri, Gurtej Sandhu
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Patent number: 7273792Abstract: A semiconductor device including a semiconductor substrate, a device isolation region formed by filling a trench in the semiconductor substrate with dielectric material and defining device regions in the semiconductor substrate. The trench has a rounded upper edge, and a dummy thin layer formed on the rounded upper edge.Type: GrantFiled: December 30, 2004Date of Patent: September 25, 2007Assignee: Dongbu Electronics Co., Ltd.Inventor: Yong Keon Choi
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Patent number: 7273793Abstract: The invention includes a method of filling gaps in a semiconductor substrate. A substrate and a gas mixture containing at least one heavy-hydrogen compound are provided within a reaction chamber. The gas mixture is reacted to form a layer of material over the substrate by simultaneous deposition and etch of the layer. The layer of material fills the gap such that the material within the gap is essentially void-free. The invention includes a method of providing improved deposition rate uniformity. A material is deposited over a surface in the presence of at least one gas selected from the group consisting of D2, HD, DT, T2 and TH. The net deposition rate during the deposition has a degree of variance across the surface which is measurably improved relative to a corresponding degree of variance that occurs during deposition utilizing H2 under otherwise substantially identical conditions.Type: GrantFiled: April 25, 2005Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventors: Neal R. Rueger, William Budge, Weimin Li, Gurtej S. Sandhu
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Patent number: 7273794Abstract: To isolate two active regions formed on a silicon-on-insulator (SOI) substrate, a shallow trench isolation region is filled with liquid phase deposited silicon dioxide (LPD-SiO2) while avoiding covering the active areas with the oxide. By selectively depositing the oxide in this manner, the polishing needed to planarize the wafer is significantly reduced as compared to a chemical-vapor deposited oxide layer that covers the entire wafer surface. Additionally, the LPD-SiO2 does not include the growth seams that CVD silicon dioxide does. Accordingly, the etch rate of the LPD-SiO2 is uniform across its entire expanse thereby preventing cavities and other etching irregularities present in prior art shallow trench isolation regions in which the etch rate of growth seams exceeds that of the other oxide areas.Type: GrantFiled: December 11, 2003Date of Patent: September 25, 2007Assignee: International Business Machines CorporationInventors: Mark Charles Hakey, Steven John Holmes, David Vaclav Horak, Charles William Koburger, III, Peter H. Mitchell, Larry Alan Nesbit
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Patent number: 7273795Abstract: A semiconductor device having a trench element separation region is disclosed. A pad oxide film (2), and a silicon nitride film (3) may be formed on a semiconductor substrate (1). A trench (4) may be formed by dry etching using the silicon nitride film (3) as a mask. The silicon substrate (1) may be thermally oxidized using the silicon nitride film (3) as an oxidation mask and a modified layer may be formed on the surface of the silicon nitride film (3). The modified layer may be removed by a neutral radical containing fluorine. The surface of the silicon nitride film (3) may be etched by a predetermined thickness. A filling insulation film may be deposited to completely fill the trench (4). The insulation film may then be chemical mechanical polished using the silicon nitride film (3a) as a polishing stopper to form a trench element separation insulation material (8).Type: GrantFiled: January 19, 2005Date of Patent: September 25, 2007Assignee: Elpida Memory, Inc.Inventor: Kazuo Ogawa
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Patent number: 7273796Abstract: A method of fabricating integrated circuitry includes depositing a spin-on-dielectric over a semiconductor substrate. The spin-on-dielectric comprises a polysilazane. Only some of the polysilazane is etched from the semiconductor substrate. Such etching comprises exposure to an etching fluid comprising at least one of a) an aqueous fluid having a pH greater than 7.0, or b) a basic fluid solution. After the etching, remaining spin-on-dielectric comprising polysilazane is annealed effective to form an annealed dielectric which is different in composition from the spin-on-dielectric, and preferably having a dielectric constant k which is different from that of the initially deposited spin-on-dielectric.Type: GrantFiled: March 23, 2005Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventors: John Smythe, Li Li, Janos Fucsko
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Patent number: 7273797Abstract: The invention encompasses a method of forming a semiconductor-on-insulator construction. A substrate is provided. The substrate includes a semiconductor-containing layer over an insulative mass. The insulative mass comprises silicon dioxide. A band of material is formed within the insulative mass. The material comprises one or more of nitrogen argon, fluorine, bromine, chlorine, iodine and germanium.Type: GrantFiled: August 31, 2005Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventor: Chandra Mouli
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Patent number: 7273798Abstract: A gallium nitride device substrate comprises a layer of gallium nitride containing an additional lattice parameter altering element located over a substitute substrate.Type: GrantFiled: August 1, 2005Date of Patent: September 25, 2007Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Steven D. Lester, Virginia M. Robbins, Scott W. Corzine
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Patent number: 7273799Abstract: Chemical vapor deposition methods are used to deposit silicon-containing films over mixed substrates. Such methods are useful in semiconductor manufacturing to provide a variety of advantages, including uniform deposition over heterogeneous surfaces, high deposition rates, and higher manufacturing productivity. An example is in forming the base region of a heterojunction bipolar transistor, including simultaneous deposition over both single crystal semiconductor surfaces and amorphous insulating regions.Type: GrantFiled: August 12, 2004Date of Patent: September 25, 2007Assignee: ASM America, Inc.Inventor: Michael A. Todd
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Patent number: 7273800Abstract: The present invention provides semiconductor structures and a method of fabricating such structures for application of MOSFET devices. The semiconductor structures are fabricated in such a way so that the layer structure in the regions of the wafer where n-MOSFETs are fabricated is different from the layer structure in regions of the wafers where p-MOSFETs are fabricated. The structures are fabricated by first forming a damaged region with a surface of a Si-containing substrate by ion implanting of a light atom such as He. A strained SiGe alloy is then formed on the Si-containing substrate containing the damaged region. An annealing step is then employed to cause substantial relaxation of the strained SiGe alloy via a defect initiated strain relaxation. Next, a strained semiconductor cap such as strained Si is formed on the relaxed SiGe alloy.Type: GrantFiled: November 1, 2004Date of Patent: September 25, 2007Assignee: International Business Machines CorporationInventors: Diane C. Boyd, Juan Cai, Kevin K. Chan, Patricia M. Mooney, Kern Rim
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Patent number: 7273801Abstract: Display devices such as EL elements or LED elements, are formed from thin film elements having banks of prescribed height and a thin film layer formed by an ink jet method in areas to be coated that are partitioned by those banks. The banks may be formed of an organic material on a bank formation surface configured of an inorganic material, plasma treatment is performed under conditions that the induction gas is fluorine-based and that fluorine is present excessively, and the areas enclosed by the banks subjected to surface treatment are filled with the liquid thin film material to form the thin film layer or layers.Type: GrantFiled: March 31, 2005Date of Patent: September 25, 2007Assignee: Seiko Epson CorporationInventors: Shunichi Seki, Hiroshi Kiguchi, Ichio Yudasaka, Hiroo Miyajima
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Patent number: 7273802Abstract: Methods for fabricating conductive structures on contact pads of semiconductor device components or other electronic components and for securing conductive structures to contact pads include directing consolidating energy toward unconsolidated conductive material. Alternatively, an unconsolidated material that will consolidate without additional consolidating energy may be used to form such conductive structures, in which case layers of the unconsolidated material are merely defined. Consolidating energy may be directed or layers of unconsolidated conductive material defined by recognizing the locations or orientations of one or more features, such as a contact, of the semiconductor device component or other electronic component. The conductive elements may include, but are not limited to, discrete conductive structures that protrude from the contacts, conductive traces that extend laterally from the contacts, or vias of circuit boards, interposers, or semiconductor devices.Type: GrantFiled: August 24, 2004Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventor: Vernon M. Williams
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Patent number: 7273803Abstract: A ball-limiting metallurgy includes a substrate, a barrier layer formed over the substrate, an adhesion layer formed over the barrier layer, a first solderable layer formed over the adhesion layer, a diffusion barrier layer formed over the adhesion layer, and a second solderable layer formed over the diffusion barrier layer.Type: GrantFiled: December 1, 2003Date of Patent: September 25, 2007Assignee: International Business Machines CorporationInventors: Yu-Ting Cheng, Stefanie Ruth Chiras, Donald W. Henderson, Sung-Kwon Kang, Stephen James Kilpatrick, Henry A. Nye, III, Carlos J. Sambucetti, Da-Yuan Shih
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Patent number: 7273804Abstract: Disclosed is a reinforced bond pad structure having nonplanar dielectric structures and a metallic bond layer conformally formed over the nonplanar dielectric structures. The nonplanar dielectric structures are substantially reproduced in the metallic bond layer so as to form nonplanar metallic structures. Surrounding each of the nonplanar metallic structures is a ring of dielectric material which provides a hard stop during probing of the bond pad so as to limit the amount of bond pad that can be removed during probing.Type: GrantFiled: January 6, 2005Date of Patent: September 25, 2007Assignee: International Business Machines CorporationInventors: David Angell, Frederic Beaulieu, Takashi Hisada, Adreanne Kelly, Samuel Roy McKnight, Hiromitsu Miyai, Kevin Shawn Petrarca, Wolfgang Sauter, Richard Paul Volant, Caitlin W. Weinstein
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Patent number: 7273805Abstract: A semiconductor device includes a completed semiconductor chip and a dielectric layer overlying the completed semiconductor chip. A redistribution layer overlies the completed semiconductor chip and is embedded in the dielectric layer. The redistribution layer includes a plurality of microstrip conductors. Each microstrip conductor has a height and a width selected such that the height is at least twice the width. In addition, each microstrip conductor is separated from an adjacent microstrip conductor by a spacing distance that is at least twice the width.Type: GrantFiled: May 25, 2005Date of Patent: September 25, 2007Assignee: Infineon Technologies AGInventor: Harald Gross
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Patent number: 7273806Abstract: Methods of forming a conductive structure on a substrate prior to packaging, and a test probe structure generated according to the method, are disclosed. The conductive structure includes a high aspect ratio structure formed by injected molded solder. The invention can be applied to form passive elements and interconnects on a conventional semiconductor substrate after the typical BEOL, and prior to packaging. The method may provide better electromigration characteristics, lower resistivity, and higher Q factors for conductive structures. In addition, the method is backwardly compatible and customizable.Type: GrantFiled: December 9, 2004Date of Patent: September 25, 2007Assignee: International Business Machines CorporationInventors: Robert A. Groves, Peter A. Gruber, Kevin S. Petrarca, Richard P. Volant, George F. Walker
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Patent number: 7273807Abstract: A method for fabricating a semiconductor device, in which a sufficient misalignment margin is obtained when forming interconnections and contact holes, is provided. Dielectric layer patterns which define recesses in which damascene interconnections are to be formed, are formed. Then, first contact holes between the dielectric layer patterns are etched, and the first contact holes and the recesses are concurrently filled with a conductive material. The recesses can be filled with the conductive material by performing an etch-back process. The dielectric layer patterns are then etched, thereby forming the damascene interconnections and concurrently covering only a region in which second contact holes are to be formed with the dielectric layer patterns. Spaces between the dielectric layer patterns are filled with a mask layer, and then the dielectric layer patterns are selectively removed from the resultant structure, thereby forming the second contact holes aligned with the damascene interconnections.Type: GrantFiled: March 17, 2005Date of Patent: September 25, 2007Assignee: Samsung Electronics Co., Ltd.Inventor: Je-Min Park
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Patent number: 7273808Abstract: A method for making a multilayer interconnect electronic component structure, and, in particular, an integrated circuit semiconductor device made using a copper damascene method is provided. The process of the invention uses a method for pre-cleaning exposed copper surfaces in the structure. The method employs a cleaning composition containing a nitrogen containing material and an oxygen containing material and also optionally a hydrogen containing material to remove the copper oxide film on copper surfaces in the structure. The preferred nitrogen material is nitrogen gas and the preferred oxygen material is oxygen gas. The gas mixture is preferably energized to form a plasma which is used to contact and remove the copper oxide and clean the structure. A two-step process may be used employing a nitrogen/oxygen mixture and then a hydrogen containing gas mixture such as Ar/H2.Type: GrantFiled: February 3, 2003Date of Patent: September 25, 2007Assignee: Novellus Systems, Inc.Inventor: Chingfu Lin
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Patent number: 7273809Abstract: A method for fabricating an ultra-small electrode or plug contact for use in chalcogenide memory cells specifically, and in semiconductor devices generally, in which disposable spacers are utilized to fabricate ultra-small pores into which the electrodes are formed. The electrodes thus defined have minimum lateral dimensions ranging from approximately 500 to 4000 Angstroms. The pores thus defined may then be used to fabricate a chalcogenide memory cell or other semiconductor devices.Type: GrantFiled: August 31, 2004Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventor: Russell C. Zahorik
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Patent number: 7273810Abstract: A semiconductor apparatus is constructed such that the top surface, contacting a barrier metal film, of a conducting film embedded in a trench is located below the top surface of a second interlayer insulating film. The semiconductor apparatus is fabricated such that a plasma treatment is performed in a non-nitriding environment after a polishing process using CMP, so as to form a damaged layer on top of the second interlayer insulating film and the conducting film, and a portion of the damaged layer is removed by etching.Type: GrantFiled: September 28, 2004Date of Patent: September 25, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Yohko Naruse, Naoteru Matsubara, Kazunori Fujita
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Patent number: 7273811Abstract: A method of depositing conformal film into high aspect ratio spaces includes the step of forming a gradient of precursor gas inside the space(s) prior to deposition. The gradient may be formed, for example, by reducing the pressure within the deposition chamber or by partial evacuation of the deposition chamber. The temperature of the substrate is then briefly increased to preferentially deposit precursor material within the closed or “deep” portion of the high aspect ratio space. The process may be repeated for a number of cycles to completely fill the space(s). The process permits the filling of high aspect ratio spaces without any voids or keyholes that may adversely impact the performance of the resulting device.Type: GrantFiled: June 27, 2005Date of Patent: September 25, 2007Assignee: The Regents of the University of CaliforniaInventor: Ya-Hong Xie
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Patent number: 7273812Abstract: Embodiments of the present invention are directed to the formation of microprobe tips elements having a variety of configurations. In some embodiments tips are formed from the same building material as the probes themselves, while in other embodiments the tips may be formed from a different material and/or may include a coating material. In some embodiments, the tips are formed before the main portions of the probes and the tips are formed in proximity to or in contact with a temporary substrate.Type: GrantFiled: July 7, 2005Date of Patent: September 25, 2007Assignee: Microfabrica Inc.Inventors: Kieun Kim, Adam L. Cohen, Willa M. Larsen, Richard T. Chen, Ananda H. Kumar, Ezekiel J. J. Kruglick, Vacit Arat, Gang Zhang, Michael S. Lockard, Christopher A. Bang
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Patent number: 7273813Abstract: A method and cleaning solution that removes contaminants from a dielectric material and polished surfaces of copper interconnect structures prior to an electroless deposition of a capping layer without substantially adversely affecting the interconnect formed therefrom are disclosed. The cleaning solution includes combinations of a core mixture and sulfuric acid or sulfonic compounds such as sulfonic acids that include methanesulfonic acid. In one embodiment, the core mixture includes a citric acid solution and a pH adjuster such as tetra-methyl ammonium hydroxide or ammonia. One embodiment of the method includes providing a planarized substrate, applying the cleaning solution to the substrate to simultaneously clean at least one metal feature and a dielectric material of the substrate, and depositing the metal capping layer selectively on the at least one metal feature using electroless deposition.Type: GrantFiled: February 8, 2005Date of Patent: September 25, 2007Assignee: Applied Materials, Inc.Inventors: Ramin Emami, Timothy Weidman, Sergey Lopatin, Hongbin Fang, Arulkumar Shanmugasundram
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Patent number: 7273814Abstract: A method for forming a ruthenium metal layer includes providing a patterned substrate in a process chamber of a deposition system, where the patterned substrate contains one or more vias or trenches, or combinations thereof, depositing a first ruthenium metal layer on the substrate in an atomic layer deposition process, and depositing a second ruthenium metal layer on the first ruthenium metal layer in a thermal chemical vapor deposition process. The deposited ruthenium metal layer can be used as a diffusion barrier layer, a seed layer for electroplating, or both.Type: GrantFiled: March 16, 2005Date of Patent: September 25, 2007Assignee: Tokyo Electron LimitedInventor: Tsukasa Matsuda
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Patent number: 7273815Abstract: A method for forming a feature in a layer with reduced line edge roughening is provided. A photoresist layer is formed over the layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A sidewall layer with a thickness less than 100 nm is formed over the sidewalls of the photoresist features by performing for a plurality of cycles. Each cycle comprises depositing a layer on the photoresist layer wherein the deposited layer has a thickness between a monolayer to 20 nm. Features are etched into the layer through the photoresist features. The photoresist layer and sidewall layer are stripped.Type: GrantFiled: August 18, 2005Date of Patent: September 25, 2007Assignee: Lam Research CorporationInventors: S. M. Reza Sadjadi, Eric A. Hudson
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Patent number: 7273816Abstract: The invention includes methods of forming capacitor structures and removing organic material. An organic material, such as a photoresist, is disposed on a substrate. The organic material is contacted with a chemical mechanical polishing pad and a polishing fluid to remove the organic material from the substrate. The polishing fluid can be essentially free of particles, and can be water.Type: GrantFiled: August 2, 2006Date of Patent: September 25, 2007Assignee: Micron Technology, Inc.Inventor: Nishant Sinha