Etching Organic Layer (epo) Patents (Class 257/E21.254)
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Patent number: 8878275Abstract: In one general aspect, an apparatus can include a channel region disposed in a semiconductor substrate, a gate dielectric disposed on the channel region and a drift region disposed in the semiconductor substrate adjacent to the channel region. The apparatus can further include a field plate having an end portion disposed between a top surface of the semiconductor substrate and the gate dielectric The end portion can include a surface in contact with the gate dielectric, the surface having a first portion aligned along a first plane non-parallel to a second plane along which a second portion of the surface is aligned, the first plane being non-parallel to the top surface of the semiconductor substrate and the second plane being non-parallel to the top surface of the semiconductor substrate.Type: GrantFiled: February 18, 2013Date of Patent: November 4, 2014Assignee: Fairchild Semiconductor CorporationInventors: Sunglyong Kim, Mark Schmidt, Christopher Nassar, Steven Leibiger
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Patent number: 8759824Abstract: A semiconductor structure including an ordered array of parallel graphene nanoribbons located on a surface of a semiconductor substrate is provided using a deterministically assembled parallel set of nanowires as an etch mask. The deterministically assembled parallel set of nanowires is formed across a gap present in a patterned graphene layer utilizing an electric field assisted assembly process. A semiconductor device, such as a field effect transistor, can be formed on the ordered array of parallel graphene nanoribbons.Type: GrantFiled: January 4, 2013Date of Patent: June 24, 2014Assignee: International Business Machines CorporationInventors: Christos D. Dimitrakopoulos, Alfred Grill, Timothy J. McArdle
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Patent number: 8728845Abstract: The present disclosure provides various methods for removing an anti-stiction layer. An exemplary method includes forming an anti-stiction layer over a substrate, including over a first substrate region of a first material and a second substrate region of a second material, wherein the second material is different than the first material; and selectively removing the anti-stiction layer from the second substrate region of the second material without using a mask.Type: GrantFiled: March 24, 2011Date of Patent: May 20, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shih-Wei Lin, Ping-Yin Liu, Lan-Lin Chao, Jung-Huei Peng, Chia-Shiung Tsai
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Patent number: 8592246Abstract: Methods of manufacturing a solar cell module are provided. The method may include forming lower electrodes on a substrate, forming a light absorption layer on the lower electrodes and the substrate, patterning the light absorption layer to form a trench exposing the lower electrodes, and forming window electrodes using a conductive film. The conductive film extends from a top surface of the light absorption layer to a bottom of the trench along one-sidewall of the trench and is divided at another-sidewall of the trench.Type: GrantFiled: May 18, 2012Date of Patent: November 26, 2013Assignee: Electronics and Telecommunications Research InstituteInventor: Rae-Man Park
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Patent number: 8558234Abstract: Highly efficient, low energy, low light level imagers and photodetectors are provided. In particular, a novel class of Della-Doped Electron Bombarded Array (DDEBA) photodetectors that will reduce the size, mass, power, complexity, and cost of conventional imaging systems while improving performance by using a thinned imager that is capable of detecting low-energy electrons, has high gain, and is of low noise.Type: GrantFiled: February 11, 2011Date of Patent: October 15, 2013Assignee: California Institute of TechnologyInventors: Shouleh Nikzad, Chris Martin, Michael E. Hoenk
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Patent number: 8541257Abstract: A method for forming an electronic device having a semiconducting active layer comprising a polymer, the method comprising aligning the chains of the polymer parallel to each other by bringing the polymer into a liquid-crystalline phase.Type: GrantFiled: September 22, 2010Date of Patent: September 24, 2013Assignee: Cambridge University Technical Services LimitedInventors: Henning Sirringhaus, Richard Henry Friend, Richard John Wilson
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Patent number: 8513142Abstract: A method of manufacturing non-photosensitive polyimide passivation layer is disclosed. The method includes: spin-coating a non-photosensitive polyimide layer over a wafer and baking it; depositing a silicon dioxide thin film thereon; spin-coating a photoresist layer over the silicon dioxide thin film and baking it; exposing and developing the photoresist layer to form a photoresist pattern; etching the silicon dioxide thin film by using the photoresist pattern as a mask; removing the patterned photoresist layer; dry etching the non-photosensitive polyimide layer by using the patterned silicon dioxide thin film as a mask; removing the patterned silicon dioxide thin film; and curing to form a imidized polyimide passivation layer. The method addresses issues of the traditional non-photosensitive polyimide process, including aluminum corrosion by developer, tapered profile of non-photosensitive polyimide layer and generation of photoresist residues.Type: GrantFiled: November 20, 2012Date of Patent: August 20, 2013Assignee: Shanghai Hua Hong NEC Electronics Co., Ltd.Inventor: Xiaobo Guo
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Patent number: 8486830Abstract: A via forming method that includes forming via-holes in a substrate is provided. The method includes putting the substrate, having the via-holes, in a first solution to fill the via-holes with the first solution. Metal particles are sunk into the via-holes by supplying a second solution containing the metal particles to the first solution. A first curing process of heat-treating the substrate is performed so as to form vias in the via-holes. A multi-chip package that includes the substrate having the vias is also provided.Type: GrantFiled: July 13, 2010Date of Patent: July 16, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Dong Pyo Kim, Kyu Ha Baek, Kun Sik Park, Lee Mi Do
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Patent number: 8354296Abstract: A semiconductor structure including an ordered array of parallel graphene nanoribbons located on a surface of a semiconductor substrate is provided using a deterministically assembled parallel set of nanowires as an etch mask. The deterministically assembled parallel set of nanowires is formed across a gap present in a patterned graphene layer utilizing an electric field assisted assembly process. A semiconductor device, such as a field effect transistor, can be formed on the ordered array of parallel graphene nanoribbons.Type: GrantFiled: January 19, 2011Date of Patent: January 15, 2013Assignee: International Business Machines CorporationInventors: Christos D. Dimitrakopoulos, Alfred Grill, Timothy J. McArdle
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Methods of forming a hole having a vertical profile and semiconductor devices having a vertical hole
Patent number: 8211804Abstract: In a method of forming a hole, an insulation layer is formed on a substrate, and a preliminary hole exposing the substrate is formed through the insulation layer. A photosensitive layer pattern including an organic polymer is then formed on the substrate to fill the preliminary hole. An etching gas including hydrogen fluoride (HF) or fluorine (F2) is then provided onto the photosensitive layer pattern to etch the insulation layer so that width of the preliminary hole is increased.Type: GrantFiled: February 11, 2011Date of Patent: July 3, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hyo-San Lee, Bo-Un Yoon, Kun-Tack Lee, Dae-Hyuk Kang, Seong-Ho Moon, So-Ra Han -
Publication number: 20120142195Abstract: There is provided a resist underlayer film having both heat resistance and etching selectivity. A composition for forming a resist underlayer film for lithography, comprising a reaction product (C) of an alicyclic epoxy polymer (A) with a condensed-ring aromatic carboxylic acid and monocyclic aromatic carboxylic acid (B). The alicyclic epoxy polymer (A) may include a repeating structural unit of Formula (1): (T is a repeating unit structure containing an alicyclic ring in the polymer main chain; and E is an epoxy group or an organic group containing an epoxy group). The condensed-ring aromatic carboxylic acid and monocyclic aromatic carboxylic acid (B) may include a condensed-ring aromatic carboxylic acid (B1) and a monocyclic aromatic carboxylic acid (B2) in a molar ratio of B1:B2=3:7 to 7:3. The condensed-ring aromatic carboxylic acid (B1) may be 9-anthracenecarboxylic acid and the monocyclic aromatic carboxylic acid (B2) may be benzoic acid.Type: ApplicationFiled: August 11, 2010Publication date: June 7, 2012Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Tetsuya Shinjo, Hirokazu Nishimaki, Yasushi Sakaida, Keisuke Hashimoto
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Patent number: 8143168Abstract: The present invention discloses technique of etching selectively a layer containing siloxane. The present invention provides a semiconductor device with reduced operation deterioration due to etching failure. A method for manufacturing a semiconductor device comprises steps of forming a conductive layer electrically connecting to a transistor, an insulating layer covering the conductive layer, and a mask formed over the insulating layer; and etching the insulating layer with a processing gas including a hydrogen bromide gas.Type: GrantFiled: January 11, 2011Date of Patent: March 27, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shinya Sasagawa, Shigeharu Monoe
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Patent number: 8129287Abstract: A first oxide film and a second oxide film 16 are formed in a first region 13a and a second region 13b, respectively, on the surface of the semiconductor substrate 10, via thermal oxidization method, and the first oxide film is removed while the second oxide film 16 is covered with the resist layer 18 formed thereon, and then the resist layer 18 is removed with a chemical solution containing an organic solvent such as isopropyl alcohol as a main component. Subsequently, a third oxide film 22 having different thickness than the second oxide film 16 is formed in the first region 13a.Type: GrantFiled: June 16, 2008Date of Patent: March 6, 2012Assignee: Renesas Electronics CorporationInventors: Tatsuya Suzuki, Hidemitsu Aoki
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Patent number: 7985699Abstract: A substrate processing method capable of preventing a substrate rear surface from being scratched when attracted onto an electrostatic chuck. In a coater/developer (11), a photocurable resin is coated onto a rear surface of a wafer (W), the resin is cured to form a resin protective film, and a resist is coated onto a front surface of the wafer. An exposing apparatus (12) subjects the resist to light exposure processing, irradiating ultraviolet light onto a resist portion of a pattern reversed with respect to a mask pattern. The coater/developer uses a washing liquid to remove the resist, thereby forming a resist film. In an etching apparatus (13), the front surface of the wafer is electrostatically attracted onto an electrostatic chuck (49) is subjected to RIE processing. In a washing apparatus (14), the resin protective film is dissolved and removed.Type: GrantFiled: March 21, 2007Date of Patent: July 26, 2011Assignee: Tokyo Electron LimitedInventor: Eiichi Nishimura
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Publication number: 20110101508Abstract: A resist pattern thickening material containing a resin, a cyclic compound expressed by the general formula 1, at least one of compounds expressed by the general formulae 2 to 3, respectively, and water:Type: ApplicationFiled: February 26, 2010Publication date: May 5, 2011Applicant: FUJITSU LIMITEDInventors: Miwa KOZAWA, Koji Nozaki
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Patent number: 7883919Abstract: A method for fabricating a negative thermal expanding system device includes coating a wafer with a thermally decomposable polymer, patterning the decomposable polymer into repeating disk patterns, releasing the decomposable polymer from the wafer and forming a sheet of repeating patterned disks, suspending the sheet into a first solution with seeding compounds for electroless decomposition, removing the sheet from the first solution, suspending the sheet into a second solution to electrolessly deposit a first layer material onto the sheet, removing the sheet from the second solution, suspending the sheet into a third solution to deposit a second layer of material having a lower TCE value than the first layer of material, separating the patterned disks from one another, and annealing thermally the patterned disks to decompose the decomposable polymer and creating a cavity in place of the decomposable polymer.Type: GrantFiled: July 6, 2009Date of Patent: February 8, 2011Assignee: International Business Machines CorporationInventors: Gareth Geoffrey Hougham, S. Jay Chey, James Patrick Doyle, Xiao Hu Liu, Christopher V. Jahnes, Paul Alfred Lauro, Nancy C. LaBianca, Michael J. Rooks
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Patent number: 7749915Abstract: A method of protecting a polymeric layer from contamination by a photoresist layer. The method includes: (a) forming a polymeric layer over a substrate; (b) forming a non-photoactive protection layer over the polymeric layer; (c) forming a photoresist layer over the protection layer; (d) exposing the photoresist layer to actinic radiation and developing the photoresist layer to form a patterned photoresist layer, thereby exposing regions of the protection layer; (e) etching through the protection layer and the polymeric layer where the protection layer is not protected by the patterned photoresist layer; (f) removing the patterned photoresist layer in a first removal process; and (g) removing the protection layer in a second removal process different from the first removal process.Type: GrantFiled: March 31, 2008Date of Patent: July 6, 2010Assignee: International Business Machines CorporationInventors: Ute Drechsler, Urs T. Duerig, Jane Elizabeth Frommer, Bernd W. Gotsmann, James Lupton Hedrick, Armin W. Knoll, Tobias Kraus, Robert Dennis Miller
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Patent number: 7556979Abstract: A Negative Thermal Expansion system (NTEs) device for TCE compensation or CTE compensation in elastomer composites and conductive elastomer interconnects in microelectronic packaging. One aspect of the present invention provides a method for fabricating micromachine devices that have negative thermal expansion coefficients that can be made into a composite for manipulation of the TCE of the material. These devices and composites made with these devices are in the categories of materials called “smart materials” or “responsive materials.” Another aspect of the present invention provides microdevices comprised of dual opposed bilayers of material where the two bilayers are attached to one another at the peripheral edges only, and where the bilayers themselves are at a minimum stress conditions at a reference temperature defined by the temperature at which the bilayers are formed.Type: GrantFiled: October 31, 2007Date of Patent: July 7, 2009Assignee: International Business Machines CorporationInventors: Gareth Geoffrey Hougham, S. Jay Chey, James Patrick Doyle, Xiao Hu Liu, Christopher V. Jahnes, Paul Alfred Lauro, Nancy C. LaBianca, Michael J. Rooks
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Publication number: 20080076257Abstract: The present invention provides a method for manufacturing a semiconductor device which can perform good processing of line edge roughness, comprising steps of: forming a processed film on a substrate; forming a bottom layer comprising an organic film on the processed film; forming a top layer comprising a silicon component on the bottom layer; patterning the top layer; selectively removing a residue on a surface of the bottom layer without etching the bottom layer after the top layer patterning step; etching the bottom layer with the top layer as a mask; and etching the processed film with the bottom layer as a mask after the bottom layer etching step.Type: ApplicationFiled: September 18, 2007Publication date: March 27, 2008Inventor: Mitsunari Sukekawa