Patents Issued in May 8, 2007
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Patent number: 7214543Abstract: The subject invention pertains to a method and apparatus for sensing nitroaromatics. The subject invention can utilize luminescent, for example fluorescent and/or electroluminescent, aryl substituted polyacetylenes and/or other substituted polyacetylenes which are luminescent for sensing nitroaromatics. In a specific embodiment, the subject invention can utilize thin films of fluorescent and/or electroluminescent aryl substituted polyacetylenes and/or other substituted polyacetylenes which are fluorescent and/or electroluminescent. In a specific embodiment, the fluorescence from thin films of fluorescent, substituted polyacetylene, such as—poly-[1-phenyl-2-(4-trimethylsilylphenyl)ethyne] (PTMSDPA) is strongly quenched by the vapors of a variety of nitroaromatic compounds present at levels ranging from parts-per-million to parts-per-billion in air.Type: GrantFiled: October 15, 2002Date of Patent: May 8, 2007Assignee: University of Florida Research Foundation, Inc.Inventors: Kirk S. Schanze, James M. Boncella
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Patent number: 7214544Abstract: A container having a flexible wall receives a continuous flow of a biological fluid that includes a target antigen and emits a continuous flow of the biological fluid at least partially depleted from the target antigen. The container further comprises a compartment with magnetic beads coupled to an affinity marker that binds the target antigen, and the target antigen is separated from the biological fluid using a magnetic force and an automatic mechanical force, wherein at least one of the magnetic force and automatic mechanical force is transmitted through the flexible wall.Type: GrantFiled: October 11, 2001Date of Patent: May 8, 2007Assignee: Qualigen, Inc.Inventors: Michael Poirier, Vijay K. Mahant
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Patent number: 7214545Abstract: The present invention provides compositions and methods for detecting, analyzing, and identifying biomolecules. More particularly, the invention provides Element Coded Affinity Tags comprising a metal chelate and a metal ion and methods of using the tags to detect, analyze, and identify biomolecules including polypeptides, nucleic acids, lipids, and polysaccharides.Type: GrantFiled: April 28, 2004Date of Patent: May 8, 2007Assignee: The Regents of the University of CaliforniaInventors: Claude F. Meares, Paul A. Whetstone, Todd M. Corneillie, Nathaniel G. Butlin
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Patent number: 7214546Abstract: Chemiluminescent substrate delivery systems comprising a conjugate of a dendrimer and at least one chemiluminescent substrate are provided. The substrate delivery systems can also include a chemiluminescence enhancer. The dendrimer/chemiluminescent substrate conjugates can be used in kits including an enzyme capable of activating the chemiluminescent substrate to produce a peroxygenated intermediate that decomposes to produce light. The dendrimer/chemiluminescent substrate conjugates can be used in assays to detect the presence of an analyte (e.g., an enzyme, an antibody, an antigen or a nucleic acid) in a sample.Type: GrantFiled: January 8, 2002Date of Patent: May 8, 2007Assignee: Applera CorporationInventor: Alison L. Sparks
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Patent number: 7214547Abstract: The invention includes a method of forming a semiconductor construction, such as an MRAM construction. A block is formed over a semiconductor substrate. First and second layers are formed over the block, and over a region of the substrate proximate the block. The first and second layers are removed from over the block while leaving portions of the first and second layers over the region proximate the block. At least some of the first layer is removed from under the second layer to form a channel over the region proximate the block. A material, such as a soft magnetic material, is provided within the channel. The invention also includes semiconductor constructions.Type: GrantFiled: January 6, 2006Date of Patent: May 8, 2007Assignee: Micron Technology, Inc.Inventor: Joel A. Drewes
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Patent number: 7214548Abstract: A method, apparatus, and computer program product for flattening a warped substrate. The substrate is placed on a planar surface of a clamping apparatus in direct mechanical contact with the planar surface. The substrate comprises surface regions S1, S2, . . . , SN having an average warpage of W1, W2, . . . , WN, respectively, wherein W1?W2? . . . ?WN and W1?WN. Zones Z1, Z2, . . . , ZN of the planar surface respectively comprise vacuum port groups G1, G2, . . . , GN. Each group comprises at least one vacuum port. N is at least 2. A vacuum pressure PV1, PV2, . . . , PVN is generated at each vacuum port within group G1, G2, . . . , GN, at a time of T1, T2, . . . , TN to clamp surface region S1, S2, . . . , SN to zone Z1, Z2, . . . , ZN, respectively. The vacuum pressure PV1, PV2, . . . , PVN is maintained at the vacuum ports of group G1, G2, . . . , GN, respectively, until time TN+1. T1<T2< . . . <TN<TN+1.Type: GrantFiled: August 30, 2004Date of Patent: May 8, 2007Assignee: International Business Machines CorporationInventors: Mohammed F. Fayaz, Steffen K. Kaldor, Conal E. Murray, Ismail C. Noyan, Anne L. Petrosky
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Patent number: 7214549Abstract: A correcting device that properly maintains the flatness of a mask, an exposure apparatus in which overlay accuracy is increased by making use of the correcting device, and a device production method. The correcting device includes a gas flow path including a first area and a second area. The first area is formed above a reticle having formed thereon a pattern that is projected onto a material to be processed in order to form an image of the pattern on the material to be processed. The second area is connected to the first area, has a cross-sectional area that is different from that of the first area, and is not disposed in line with the reticle. The correcting device also includes a blowing section that blows gas to the gas flow path.Type: GrantFiled: May 11, 2005Date of Patent: May 8, 2007Assignee: Canon Kabushiki KaishaInventors: Nobuyoshi Tanaka, Eiji Sakamoto
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Patent number: 7214550Abstract: A method of fabricating a thin film resistor (100). The resistor material (104), e.g., NiCr, is deposited. A hard mask material (106), e.g., TiW, may be deposited over the resistor material (104). The resistor material (104) and hard mask material (106) are patterned and sputter etched to form the resistor body. For example, a sputter etch chemistry comprising BCl3, Cl2, and Ar may be used to etch the resistor material.Type: GrantFiled: August 19, 2004Date of Patent: May 8, 2007Assignee: Texas Instruments IncorporatedInventors: Tony Thanh Phan, Daniel Tsai
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Patent number: 7214551Abstract: A method for fabricating a semiconductor product first provides an embedded semiconductor product comprising: (1) a logic region having formed therein a logic field effect transistor device; (2) a memory region having formed therein a memory field effect transistor device; and (3) a kerf region having formed therein a kerf field effect transistor device. The method also provides for measuring for the embedded semiconductor product a gate electrode linewidth for each of the logic field effect transistor device, the memory field effect transistor device and the kerf field effect transistor device. The measured gate electrode linewidths may be compared among themselves or to specified target values for purposes photoexposure process control.Type: GrantFiled: October 14, 2003Date of Patent: May 8, 2007Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Jia-Ren Chen, Hung Che Hsiue, Hann Huei Tsai, Wei Hsiung Hsu
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Patent number: 7214552Abstract: A method for a semiconductor process includes correlating yield loss for the performance of a processing step in a semiconductor manufacturing process with the mechanical placement of the semiconductor substrate and, based on the correlation, placing semiconductor substrates in a position with sufficient placement precision to reduce yield loss below a predetermined threshold.Type: GrantFiled: November 19, 2004Date of Patent: May 8, 2007Assignee: Infineon Technologies Richmond, LPInventors: Christopher Devany, Charles E. Venditti
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Patent number: 7214553Abstract: The invention relates to a process for the controlled growth of nanotubes or nanofibers on a substrate, characterized in that it furthermore comprises the production, on the substrate (11), of a bi-layer structure composed of a layer of catalyst material (71), for catalyzing the growth of nanotubes or nanofibers, and a layer of associated material, said associated material being such that it forms a noncatalytic alloy with the catalyst material at high temperature. The invention also relates to a process for fabricating a field-emission cathode using the above nanotube or nanofiber fabrication process. These processes allow very precise positioning of the catalyst spots from which the nanotubes and nanofibers can be grown and allow the fabrication of cathodes for which the nanotubes or nanofibers are self-aligned with the aperture in the extraction grid. Applications: electron tubes, nanolithography.Type: GrantFiled: September 20, 2002Date of Patent: May 8, 2007Assignee: ThalesInventors: Pierre Legagneux, Gilles Pirio, Didier Pribat, William Ireland Milne, Kenneth Boh Khin Teo
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Patent number: 7214554Abstract: A method for making an OLED device includes providing a substrate having one or more test regions and one or more device regions, moving the substrate into a least one deposition chamber for deposition of at least one organic layer, and depositing the at least one organic layer through a shadowmask selectively onto the at least one device region and at least one test region on the substrate. The method also includes measuring a property of the at least one organic layer in the at least one test region, and adjusting the deposition process in accordance with the measured property.Type: GrantFiled: March 18, 2004Date of Patent: May 8, 2007Assignee: Eastman Kodak CompanyInventors: Dustin L. Winters, Michele L. Ricks, Nancy J. Armstrong, Robert S. Cupello
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Patent number: 7214555Abstract: In a liquid crystal display device, a first substrate includes electrical wirings and a semiconductor integrated circuit which has TFTs and is connected electrically to the electrical wirings, and a second substrate includes a transparent conductive film on a surface thereof. A surface of the first substrate on which the electrical wirings are formed is opposite to the transparent conductive film on the second substrate. The semiconductor integrated circuit has substantially the same length as one side of a display screen (i.e., a matrix circuit) of the display device and is obtained by peeling it from another substrate and then forming it on the first substrate. Also, in a liquid crystal display device, a first substrate includes a matrix circuit and a peripheral driver circuit, and a second substrate is opposite to the first substrate, includes a matrix circuit and a peripheral driver circuit and has at least a size corresponding to the matrix circuit and the peripheral driver circuit.Type: GrantFiled: August 2, 2004Date of Patent: May 8, 2007Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Setsuo Nakajima, Yasuyuki Arai
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Patent number: 7214556Abstract: Disclosed is a method for forming an alignment layer of an LCD capable of preventing Mura defects when the alignment layer is formed through an LC one drop fill process. The method includes the steps of coating a mixing solution including a solvent and organic polymer materials consisting of polyimide and polyamic acid on the substrates, pre-curing the mixing solution twice with mutually different temperatures, thereby volatizing the solvent and obtaining stable phase-separation between the organic polymer materials and the solvent, and completely curing the pre-cured mixing solution at a temperature of about 180 to 240° C. A primary pre-curing process is performed at a temperature less than 50° C. under vacuum pressure of about ?35 to ?50 psi, and a secondary pre-curing process is performed at a temperature within a range of about 50 to 75° C. under the same vacuum pressure.Type: GrantFiled: August 3, 2005Date of Patent: May 8, 2007Assignee: Boe Hydis Technology Co., Ltd.Inventors: Dong Hae Suh, Young Il Park, Soo Young Choi, Gon Son
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Patent number: 7214557Abstract: A light receiving or light emitting modular sheet having a plurality of spherical elements arranged in matrix. It is constituted only of acceptable spherical elements and photoelectric conversion efficiency thereof is enhanced. The light receiving modular sheet (1) comprises a plurality of spherical solar cell elements (2) arranged in matrix, a meshed member (3), and a sheet member (4). Each solar cell element (2) comprises a spherical pn junction (13), and positive and negative electrodes (14, 15) formed oppositely while sandwiching the center of the solar cell element (2) and being connected with respective electrodes of the pn junction (13).Type: GrantFiled: October 24, 2003Date of Patent: May 8, 2007Assignee: Kyosemi CorporationInventor: Josuke Nakata
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Patent number: 7214558Abstract: Provided is a technique of improving the properties of a bipolar transistor. Described specifically, upon formation of a collector electrode around a base mesa by the lift-off method, a resist film is formed over connection portions between the outer periphery of a region OA1 and a region in which the base mesa 4a is formed, followed by successive formation of gold germanium (AuGe), nickel (Ni) and Au in the order of mention over the entire surface of a substrate so that the stacked film of them will not become an isolated pattern. As a result, the stacked film over the base mesa 4a is connected to a stacked film at the outer periphery of the region OA1, facilitating peeling of the stacked film over the base mesa 4a. In addition, generation of side etching upon formation of a via hole extending from the back side of the substrate to a backside via electrode is reduced by forming the backside via electrode using a material such as WSi which hardly reacts with an n type GaAs layer or n type InGaAs layer.Type: GrantFiled: October 25, 2005Date of Patent: May 8, 2007Assignee: Renesas Technology Corp.Inventors: Atsushi Kurokawa, Hiroshi Inagawa, Toshiaki Kitahara, Yoshinori Imamura
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Patent number: 7214559Abstract: A method for fabricating a vertical offset structure that forms a complete vertical offset on a wafer includes a first trench forming step of forming first trenches on a wafer; a first etching step of performing a first patterning for determining etching positions of second and third trenches by depositing a first thin film on the wafer, performing a second patterning for temporarily protecting the etching position of the third trench by depositing a second thin film on the first thin film and the wafer, and then forming the second trenches by etching the wafer; a second etching step of forming a protection layer on side surfaces of the second trenches and then vertically extending the second trenches by etching the wafer; a third etching step of removing the second thin film and then forming the third trench by etching a position from which the second thin film is removed; and a fourth etching step of horizontally extending the second trenches vertically extended at the second etching step and the third trenType: GrantFiled: May 23, 2005Date of Patent: May 8, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-pal Kim, Sang-woo Lee, Byeung-leul Lee
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Patent number: 7214560Abstract: A CMOS image sensor and a method for fabricating the same is disclosed, to improve reliability of a driving part transistor and to improve an output voltage of a photodiode, which includes a semiconductor substrate defined as a photodiode transistor region and a driving part transistor region; a first gate insulating layer on the photodiode transistor region of the semiconductor substrate; a second gate insulating layer on the driving part transistor region of the semiconductor substrate, wherein the second gate insulating layer is thicker than the first gate insulating layer; and gate electrodes on the respective first and second gate insulating layers.Type: GrantFiled: December 2, 2004Date of Patent: May 8, 2007Assignee: Dongbu Electronics Co., Ltd.Inventor: Jeon In Gyun
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Patent number: 7214561Abstract: A packaging assembly includes a substrate; chip-site lands disposed on the first surface; first solder balls connected to the chip-site lands; second solder balls connected to the first solder balls including solder materials having higher melting temperatures than the first solder balls; a semiconductor chip having a plurality of bonding pads connected to the second solder balls on a surface of the semiconductor chip; and an underfill resin disposed around the first and second solder balls.Type: GrantFiled: July 30, 2004Date of Patent: May 8, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Akira Tomono, Soichi Homma
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Patent number: 7214562Abstract: A method of encapsulating a plurality of IC chips attached to a lead frame strip that includes an outer frame and a plurality of vertical and horizontal connecting bars attached to the outer frame in a manner that defines a plurality of inner frames arranged in a matrix pattern within the outer frame, each inner frame including an area where an IC chip from the plurality of IC chips is attached.Type: GrantFiled: February 25, 2005Date of Patent: May 8, 2007Assignee: Carsem (M) Sdn. Bhd.Inventors: Richard Yee Mow Lum, Wong Chee Heng, Lau Kam Chuan, Goh Kok Siang, Yip Chee Sang
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Patent number: 7214563Abstract: An IC chip mounting method which mounts two or more IC chips on a base, includes: preparing a wafer by mounting a tape on a face thereof, which is the reverse of the wafer having a mounting surface to be attached to the base, and by dividing the wafer into IC chips by dicing while leaving the tape; positioning the wafer to face the base in such a direction that the mounting surface to be attached to the base faces the base; sequentially pressing the IC chips on the wafer against the base and temporarily fixing the IC chips while the base is being fed in a prescribed one-dimensional direction along the wafer and while the wafer is being moved two-dimensionally along the base; and fixing the IC chips temporarily fixed on the base on the base by heating and pressurizing in a batch manner.Type: GrantFiled: December 29, 2005Date of Patent: May 8, 2007Assignees: Fujitsu Limited, Fujitsu Frontech LimitedInventors: Naoki Ishikawa, Shunji Baba, Hidehiko Kira, Hiroshi Kobayashi, Shunichi Kikuchi, Tatsuro Tsuneno
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Patent number: 7214564Abstract: A film bulk acoustic wave filter assembly includes a film bulk acoustic filter and an RF circuit. The film bulk acoustic filter unit cell includes a plurality of film bulk acoustic wave resonators. The number, area and arrangement of the resonators depend on the characteristics of the filter. In the film bulk acoustic wave filter, a metal layer made by CMOS processes is used as a lower electrode area of the film bulk acoustic wave filter or a suspended chamber. The film bulk acoustic filter can be integrated with the RF circuit using processes such as the CMOS process. It facilitates the integration of active devices, streamlining of system design and simplification of test processes, and has a great influence on the application of RF communication devices and integration of system-system-chip (SOC).Type: GrantFiled: March 17, 2005Date of Patent: May 8, 2007Assignee: Chung Shan Institute of Science and TechnologyInventors: Po-Hsun Sung, Pei-Yen Chen, Yung-Chung Chin, Pei-Zen Chang, Yen-Ming Pang, Chi-Ming Fang, Chun-Li Hou
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Patent number: 7214565Abstract: A manufacturing method of an electronic part built-in substrate is disclosed, wherein an electronic part is contained in a build-up layer, the manufacturing method including a step for arranging an electronic part on a conductive supporting object such that the electronic part is electrically connected to the conductive supporting object, a step for forming build-up layers on the supporting object such that the electronic part is contained in the build-up layers, and a step for forming a wiring layer electrically connected to the electronic part by shaping the supporting object.Type: GrantFiled: August 15, 2005Date of Patent: May 8, 2007Assignee: Shinko Electric Industries Co., Ltd.Inventor: Masahiro Sunohara
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Patent number: 7214566Abstract: A method of making semiconductor device packages includes the steps of attaching a wafer to a dielectric layer, testing semiconductor devices in the wafer, and then dicing the layered assembly. The dielectric layer may be, for example, a flexible tape. The semiconductor devices may be chips containing integrated circuits or memory devices. The dicing operation may be performed by a circular saw or by another suitable apparatus. The chips may be connected to input/output devices, such as ball grid arrays, on the dielectric layer, before the testing and dicing steps. Full wafer testing may be-conducted through the ball grid arrays. A relatively stiff metal sheet may be included in the layered assembly before the testing and dicing steps. The metal material may be used as heat spreaders and/or as electrical ground planes. The chips may be connected to the ball grid arrays by wire bonds or flip chip bumps and vias through the dielectric layer.Type: GrantFiled: June 16, 2000Date of Patent: May 8, 2007Assignee: Micron Technology, Inc.Inventors: Alan G. Wood, Larry D. Kinsman
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Patent number: 7214567Abstract: A method of producing a semiconductor package enabling a sheet-like adhesive film to be used as it is and thereby reducing loss and enabling mounting without the piece of adhesive film sticking out from the semiconductor chip, comprising forming cutting-off notches in an adhesive film provided on a support film from the adhesive film side down to the surface of the support film or a depth D in the middle and cutting the adhesive film to pieces of predetermined size, then stretching the support film to separate the cut individual piece of the adhesive film, attaching semiconductor chip to the cut individual piece of the adhesive film, and mounting the semiconductor chip on a substrate by the piece of adhesive film, and an apparatus for producing a semiconductor package and adhesive film for use with that method.Type: GrantFiled: September 17, 2004Date of Patent: May 8, 2007Assignee: Sony CorporationInventor: Osamu Yamagata
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Patent number: 7214568Abstract: A semiconductor device includes an IC die configured to reduce post-fabrication damage to the device. The IC die is formed such that at least a portion of one or more perimeter edges of the die are beveled by an etching process. The semiconductor device may include a plurality of IC dies, at least one of the IC dies being separated from the semiconductor device by forming one or more v-shaped grooves in an upper surface of the device, the v-shaped grooves defining perimeter edges of the at least one IC die. A back surface of the semiconductor device is removed until at least a portion of the v-shaped grooves are exposed. When the IC die is separated from the semiconductor device in this manner, a sidewall of each of the v-shaped grooves forms a beveled perimeter edge of the separated IC die.Type: GrantFiled: February 6, 2004Date of Patent: May 8, 2007Assignee: Agere Systems Inc.Inventors: John M. Brennan, Joseph Michael Freund, Sujal Dipak Shah, Richard Handly Shanaman, III
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Patent number: 7214569Abstract: An apparatus incorporating small-feature size and large-feature-size components. The apparatus comprise a strap including a substrate with an integrated circuit contained therein. The integrated circuit coupling to a first conductor disposed on the substrate. The first conductor is made of a thermosetting or a thermoplastic material including conductive fillers. A large-scale component having a second conductor is electrically coupled to the first conductor to electrically couple the large-scale component to the integrated circuit. The large-scale component includes a second substrate.Type: GrantFiled: January 30, 2004Date of Patent: May 8, 2007Assignee: Alien Technology CorporationInventors: Susan Swindlehurst, Mark A. Hadley, Paul S. Drzaic, Gordon S. W. Craig, Glenn Gengel, Scott Hermann, Aly Tootoochi, Randolph W. Eisenhardt
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Patent number: 7214570Abstract: An encapsulation for an electrical device is disclosed. A cap support is provided in the non-active regions of the device to prevent the package from contacting the active components of the device due to mechanical stress induced in the package.Type: GrantFiled: January 27, 2005Date of Patent: May 8, 2007Assignee: Osram GmbHInventor: Ewald Karl Michael Guenther
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Patent number: 7214571Abstract: An electron transfer device is implemented in a structure which is readily capable of achieving charge transfer cycle frequencies in the range of several hundred MHz or more and which can be formed by conventional semiconductor integrated circuit manufacturing processes. The device includes a substrate having a horizontal extent and a pillar on the substrate extending from the substrate vertically with respect to the horizontal extent of the substrate. The pillar is formed to vibrate laterally with respect to the vertical length of the pillar at a resonant frequency which can be several hundred MHz. Drain and source electrodes extend from the substrate vertically with respect to the horizontal extent of the substrate, and have innermost ends on opposite sides of the pillar. The pillar is free to vibrate laterally back and forth between the innermost ends of the drain and source electrodes to transfer charge between the electrodes.Type: GrantFiled: September 15, 2005Date of Patent: May 8, 2007Assignee: Wisconsin Alumni Research FoundationInventors: Dominik V. Scheible, Robert H. Blick
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Patent number: 7214572Abstract: The present invention relates to a semiconductor memory device having a SRAM in which a memory cell comprises a pair of transmission transistors and a flip-flop circuit containing a pair of driver transistors and a pair of load transistors, wherein: a first conductive film interconnection formed from a first conductive film which is set on a semiconductor substrate, constitutes respective gate electrodes of said driver transistors, load transistors and transmission transistors; an inlaid interconnection set in a first insulating film lying on said semiconductor substrate, constitutes one of a pair of local interconnections cross-coupling a pair of input/output terminals in said flip-flop circuit; and a second conductive film interconnection formed from a second conductive film which is set on a second insulating film lying on said first insulating film, constitutes the other one of said pair of local interconnections.Type: GrantFiled: March 28, 2005Date of Patent: May 8, 2007Assignee: NEC Electronics CorporationInventor: Hidetaka Natsume
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Patent number: 7214573Abstract: A method of manufacturing a semiconductor device is provided which uses a laser crystallization method capable of increasing substrate processing efficiency. An island-like semiconductor film including one or more islands is formed by patterning (sub-island). The sub-island is then irradiated with laser light to improve its crystallinity, and thereafter patterned to form an island. From pattern information of a sub-island, a laser light scanning path on a substrate is determined such that at least the sub-island is irradiated with laser light. In other words, the present invention runs laser light so as to obtain at least the minimum degree of crystallization of a portion that has to be crystallized, instead of irradiating the entire substrate with laser light.Type: GrantFiled: December 9, 2002Date of Patent: May 8, 2007Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hiroshi Shibata, Koichiro Tanaka, Masaaki Hiroki, Mai Akiba
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Patent number: 7214574Abstract: To provide a method and a device for subjecting a film to be treated to a heating treatment effectively by a lamp annealing process, ultraviolet light is irradiated from the upper face side of a substrate where the film to be treated is formed and infrared light is irradiated from the lower face side by which the lamp annealing process is carried out. According to such a constitution, the efficiency of exciting the film to be treated is significantly promoted since electron excitation effect by the ultraviolet light irradiation is added to vibrational excitation effect by the infrared light irradiation and strain energy caused in the film to be treated by the lamp annealing process is removed or reduced by a furnace annealing process.Type: GrantFiled: May 7, 2002Date of Patent: May 8, 2007Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hisashi Ohtani
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Patent number: 7214575Abstract: A transistor of a pixel cell for use in a CMOS imager with a low threshold voltage of about 0.3 V to less than about 0.7 V is disclosed. The transistor is provided with high dosage source and drain regions around the gate electrode and with the halo implanted regions and/or the lightly doped LDD regions and/or the enhancement implanted regions omitted from at least one side of the gate electrode. The low threshold transistor is electrically connected to a high voltage transistor with a high threshold voltage of about 0.7 V.Type: GrantFiled: January 6, 2004Date of Patent: May 8, 2007Assignee: Micron Technology, Inc.Inventor: Howard E. Rhodes
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Patent number: 7214576Abstract: A manufacturing method of a semiconductor device disclosed herein comprises: forming a first protrusion; forming a second protrusion which is higher than the first protrusion; forming a first sidewall on a side surface of the second protrusion; forming a first film so that a surface of the first film is located lower than the second protrusion; forming a mask on a side surface of the first sidewall on a side surface of the second protrusion which protrudes from the surface of the first film; and etching the first film with the mask so as to form a second sidewall on the side surface of the first sidewall on the side surface of the second protrusion but not to form the second sidewall on a side surface of the first protrusion, the second sidewall being formed of the mask and the first film.Type: GrantFiled: November 22, 2005Date of Patent: May 8, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Akio Kaneko, Atsushi Yagishita
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Patent number: 7214577Abstract: A Co silicide layer having a low resistance and a small junction leakage current is formed on the surface of the gate electrode, source and drain of MOSFETs by silicidizing a Co film deposited on a main plane of a wafer by sputtering using a high purity Co target having a Co purity of at least 99.99% and Fe and Ni contents of not greater than 10 ppm, preferably having a Co purity of 99.999%.Type: GrantFiled: December 8, 2004Date of Patent: May 8, 2007Assignee: Renesas Technology Corp.Inventors: Shinji Nishihara, Shuji Ikeda, Naotaka Hashimoto, Hiroshi Momiji, Hiromi Abe, Shinichi Fukada, Masayuki Suzuki
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Patent number: 7214578Abstract: In a method for fabricating a semiconductor device in which a semiconductor memory element having an ONO film and a CMOS part are formed on a single semiconductor substrate, a CMOS gate-oxidation step is performed several times. Thereafter, a bit line diffusion layer and a bit line oxide film are formed in the semiconductor memory element.Type: GrantFiled: January 13, 2005Date of Patent: May 8, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Nobuyoshi Takahashi
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Patent number: 7214579Abstract: Fabrication of a memory cell, the cell including a first floating gate stack (A), a second floating gate stack (B) and an intermediate access gate (AG), the floating gate stacks (A, B) including a first gate oxide (4), a floating gate (FG), a control gate (CG; CGl, CGu), an interpoly dielectric layer (8), a capping layer (6) and side-wall spacers (10), the cell further including source and drain contacts (22), wherein the fabrication includes: defining the floating gate stacks in the same processing steps to have equal heights; depositing over the floating gate stacks a poly-Si layer (12) with a larger thickness than the floating gate stacks' height; planarizing the poly-Si layer (12); defining the intermediate access gate (AG) in the planarized poly-Si layer (14) by means of an access gate masking step over the poly-Si layer between the floating gate stacks and a poly-Si etching step.Type: GrantFiled: August 18, 2002Date of Patent: May 8, 2007Assignee: NXP BV.Inventors: Franciscus Petrus Widdershoven, Michiel Jos Van Duuren
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Patent number: 7214580Abstract: Disclosed is a semiconductor device comprising a semiconductor substrate including first and second element-formation regions partitioned by an isolation trench, first and second lower gate insulating films formed on the first and second element-formation regions, first and second floating gates formed on the first and second lower gate insulating films, an isolation insulating film formed at least in the isolation trench and has a depression formed in an upper surface thereof, an upper gate insulating film formed on the first and second floating gates, and a control gate line including an opposed portion opposed to the first and second floating gates, with the upper gate insulating film being interposed, and a portion located inside the depression, the first floating gate including a side surface opposed to the second floating gate and entirely aligns with a side surface included in the first element-formation region and defined by the isolation trench.Type: GrantFiled: December 1, 2004Date of Patent: May 8, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Yoshinori Kitamura, Shigeki Sugimoto
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Patent number: 7214581Abstract: The present invention provides a method of fabricating a flash memory device, in which floating gates in neighbor cells are separated from each other without using photolithography, which enhances electrical characteristics of the device, and which facilitates a cell size reduction. The present invention includes forming a mask defining a trench forming area on a semiconductor substrate, forming a trench in the semiconductor layer by removing a portion of the semiconductor layer using the mask, forming a device isolation layer filling up the trench to maintain an effective isolation layer thickness exceeding a predefined thickness, removing the mask, forming a conductor layer over the substrate including the device isolation layer, planarizing the conductor layer and the device isolation layer to lie in a same plane, and forming an insulating layer over the substrate including the conductor patterns.Type: GrantFiled: December 23, 2004Date of Patent: May 8, 2007Assignee: Dongbu Electronics Co., Ltd.Inventors: Sung Mun Jung, Jum Soo Kim
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Patent number: 7214582Abstract: A semiconductor substrate and a semiconductor circuit formed therein and associated fabrication methods are provided. A multiplicity of depressions with a respective dielectric layer and a capacitor electrode are formed for realizing buried capacitors in a carrier substrate and an actual semiconductor component layer being insulated from the carrier substrate by an insulation layer.Type: GrantFiled: September 13, 2003Date of Patent: May 8, 2007Assignee: Infineon Technologies AGInventors: Franz Hofmann, Volker Lehmann, Lothar Risoh, Wolfgang Rösner, Michael Specht
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Patent number: 7214583Abstract: Asymmetrically structured memory cells and a fabrication method are provided. The method comprises: forming a bottom electrode; forming an electrical pulse various resistance (EPVR) first layer having a polycrystalline structure over the bottom electrode; forming an EPVR second layer adjacent the first layer, with a nano-crystalline or amorphous structure; and, forming a top electrode overlying the first and second EPVR layers. EPVR materials include CMR, high temperature super conductor (HTSC), or perovskite metal oxide materials. In one aspect, the EPVR first layer is deposited with a metalorganic spin coat (MOD) process at a temperature in the range between 550 and 700 degrees C. The EPVR second layer is formed at a temperature less than, or equal to the deposition temperature of the first layer. After a step of removing solvents, the MOD deposited EPVR second layer is formed at a temperature less than, or equal to the 550 degrees C.Type: GrantFiled: May 16, 2005Date of Patent: May 8, 2007Assignee: Sharp Laboratories of America, Inc.Inventors: Sheng Teng Hsu, Tingkai Li, David R. Evans, Wei-Wei Zhuang, Wei Pan
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Patent number: 7214584Abstract: Disclosed is a method for preventing a bunker defect generation on a lower portion of a cylinder type metal bottom electrode. The method includes the steps of: forming an etch stop layer on a bottom structure with a conductive region and an insulation region; forming a capacitor insulation layer on the etch stop layer; forming an opening exposing the conductive region by selectively etching the capacitor insulation layer and the etch stop layer; growing a selective epitaxial growth (SEG) layer in the conductive region exposed through the opening; forming a metal layer for a capacitor bottom electrode along a profile provided with the opening; forming an isolated capacitor bottom electrode by removing the metal layer until the capacitor insulation layer is exposed; and removing the capacitor insulation layer, thereby making the capacitor bottom electrode have a cylinder type structure.Type: GrantFiled: June 10, 2005Date of Patent: May 8, 2007Assignee: Hynix Semiconductor, Inc.Inventor: Seung-Ho Pyi
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Patent number: 7214585Abstract: A widened contact area (170X) of a conductive feature (170) is formed by means of self-alignment between an edge (170E2) of the conductive feature and an edge (140E) of another feature (140). The other feature (“first feature”) is formed from a first layer, and the conductive feature is formed from a second layer overlying the first layer. The edge (170E2) of the conductive feature is shaped to provide a widened contact area. This shaping is achieved in a self-aligned manner by shaping the corresponding edge (140E) of the first feature.Type: GrantFiled: May 16, 2003Date of Patent: May 8, 2007Assignee: ProMOS Technologies Inc.Inventor: Yi Ding
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Patent number: 7214586Abstract: A method of fabricating nonvolatile memory devices. The method includes forming a tunnel oxide layer, a stacked oxide layer, a polysilicon layer for a control gate, a buffer oxide layer and a buffer nitride layer in order on the entire surface of a semiconductor substrate, and patterning the substrate vertically to form a control gate and a first device isolation region. The method also includes implanting ions into the first device isolation region to form common source and drain regions, filling the gap of the first device isolation region to form a first device isolation structure, and removing the buffer nitride layer and the buffer oxide layer. The method further includes depositing polysilicon for a word line on the substrate, and patterning the substrate vertically to form the word line and a second device isolation region, forming sidewall spacers on the sidewalls of the control gate and the word line, and forming silicide on the word line.Type: GrantFiled: December 30, 2004Date of Patent: May 8, 2007Assignee: Dongbu Electronics Co., Ltd.Inventor: Jin Hyo Jung
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Patent number: 7214587Abstract: Semiconductor memory cell and also a corresponding fabrication method are described, in which a first or bottom electrode device of the memory element of the semiconductor memory cell according to the invention and the gate electrode device of the underlying field effect transistor as selection transistor of the semiconductor memory cell are formed as the same material region or with a common material region.Type: GrantFiled: March 9, 2005Date of Patent: May 8, 2007Assignee: Infineon Technologies AGInventors: Cay-Uwe Pinnow, Ralf Symanczyk
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Patent number: 7214588Abstract: In a floating gate memory cell including a floating gate separated from an active region by a tunnel isolation region, a first one of the active region and the floating gate comprises a portion that protrudes towards a second one of the active region and the floating gate. In some embodiments, the protruding portion tapers toward the second one of the active region and the floating gate. The tunnel insulation layer may be narrowed at the protruding portion. Protruding portions may be formed on both the floating gate and the active region.Type: GrantFiled: October 11, 2005Date of Patent: May 8, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Duk Lee, Dong-gun Park, Jeong-Hyuk Choi
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Patent number: 7214589Abstract: A split gate flash memory cell having floating gates with sharp, upwardly flared corners, protective caps of dielectric material which are substantially square or rectangular in cross-section, and elongated and thin Vss dielectric spacers disposed along substantially planar side walls defined by the floating gates and the protective caps.Type: GrantFiled: March 18, 2004Date of Patent: May 8, 2007Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Yuan-Hung Liu, Yeur-Luen Tu
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Patent number: 7214590Abstract: A method of forming an electronic device includes etching a portion of a first gate dielectric layer to reduce a thickness of the gate dielectric layer within that portion. In one embodiment, portions not being etched may be covered by mask. In another embodiment, different portions may be etched during different times to give different thicknesses for the first gate dielectric layer. In a particular embodiment, a second gate dielectric layer may be formed over the first gate dielectric layer after etching the portion. The second gate dielectric layer can have a dielectric constant greater than the dielectric constant of the first gate dielectric layer. Subsequent gate electrode and source/drain region formation can be performed to form a transistor structure.Type: GrantFiled: April 5, 2005Date of Patent: May 8, 2007Assignee: Freescale Semiconductor, Inc.Inventors: Sangwoo Lim, Paul A. Grudowski, Mohamad M. Jahanbani, Hsing H. Tseng, Choh-Fei Yeap
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Patent number: 7214591Abstract: A HV-MOS device is described, including a substrate, a gate dielectric layer and a gate, a channel region, two doped regions as a source and a drain, a field isolation layer between the gate and at least one of the two doped regions, a drift region and a modifying doped region. The drift region is located in the substrate under the field isolation layer and connects with the channel region and the at least one doped region. The modifying doped region is at the periphery of the at least one doped region.Type: GrantFiled: June 1, 2005Date of Patent: May 8, 2007Assignee: United Microelectronics Corp.Inventor: Jen-Yao Hsu
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Patent number: 7214592Abstract: Methods of forming semiconductor devices with a layered structure of thin and well defined layer of activated dopants, are disclosed. In a preferred method, a region in a semiconductor substrate is amorphized, after which the region is implanted with a first dopant at a first doping concentration. Then a solid phase epitaxy regrowth step is performed on a thin layer of desired thickness of the amorphized region, in order to activate the first dopant only in this thin layer. Subsequently, a second dopant is implanted in the remaining amorphous region at a second doping concentration. Subsequent annealing of the substrate activates the second dopant only in said remaining region, so a very abrupt transition between dopant characteristics of the thin layer with first dopant and the region with the second dopant is obtained.Type: GrantFiled: October 15, 2004Date of Patent: May 8, 2007Assignees: Interuniversitair Microelektronica Centrum (IMEC), Koninklijke Philips Electronics N.V.Inventor: Radu Catalin Surdeanu