To Change Their Surface-physical Characteristics Or Shape, E.g., Etching, Polishing, Cutting (epo) Patents (Class 257/E21.483)
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Patent number: 12051571Abstract: A substrate processing method includes: a heating process of heating a substrate, which is placed on a stage disposed in a container and has a recess formed on one surface of the substrate, to a first temperature; a depositing process of depositing a thermally decomposable organic material on a front surface of the substrate by supplying a material gas into the container; and a removing process of removing the organic material deposited on a periphery of the recess and a back surface of the substrate, which is opposite to the one surface of the substrate, by holding the substrate at a position spaced apart from the stage and heating the substrate to a second temperature higher than the first temperature.Type: GrantFiled: October 22, 2021Date of Patent: July 30, 2024Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuya Ichiki, Tatsuya Yamaguchi, Syuji Nozawa
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Patent number: 11646212Abstract: A substrate treatment device is provided, including a substrate holding unit holding a substrate and rotating the substrate; plural nozzles each having a discharge port and discharging a treatment liquid from the discharge port at a treatment position; a camera imaging an imaging region from an imaging position to acquire captured images, the imaging region containing the treatment liquid discharged from the discharge port of each nozzle positioned at the treatment position, and the imaging position being above the substrate held on the substrate holding unit and in a plan view, the imaging position being positioned at a central side of the substrate with respect to the nozzles and at an upstream side in a rotation direction of the substrate holding unit with respect to the nozzles; and an image processing unit determining a discharge state of the treatment liquid based on the captured images.Type: GrantFiled: March 22, 2022Date of Patent: May 9, 2023Assignee: SCREEN Holdings Co., Ltd.Inventors: Hideji Naohara, Yuji Okita, Hiroaki Kakuma, Tatsuya Masui
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Patent number: 10854573Abstract: A substrate semiconductor layer is attached to a carrier substrate through a sacrificial bonding material layer. A plurality of semiconductor dies included within continuous material layers are formed on a front side of the substrate semiconductor layer. Each of the continuous material layers continuously extends over areas of the plurality of semiconductor dies. A plurality of dicing channels is formed between neighboring pairs among the plurality of semiconductor dies by anisotropically etching portions of the continuous material layers located between neighboring pairs of semiconductor dies. The plurality of dicing channels extends to a top surface of the sacrificial bonding material layer. The sacrificial bonding material layer is removed selective to materials of surface portions of the plurality of semiconductor dies using an isotropic etch process. The plurality of semiconductor dies is singulated from one another upon removal of the sacrificial bonding material layer.Type: GrantFiled: January 16, 2019Date of Patent: December 1, 2020Assignee: SANDISK TECHNOLOGIES LLCInventors: Zhongli Ji, Ning Ye, Tong Zhang, Hem Takiar, Yangming Liu
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Patent number: 10811456Abstract: An imaging apparatus and a manufacturing method which enables sensitivity of the imaging apparatus using infrared rays to be improved.Type: GrantFiled: March 11, 2019Date of Patent: October 20, 2020Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Shunsuke Maruyama, Takeshi Yanagita
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Patent number: 9748415Abstract: A method including providing a substrate comprising a device layer on which a plurality of device cells are defined; depositing a first dielectric layer on the device layer and metal interconnect such that the deposited interconnect is electrically connected to at least two of the device cells; depositing a second dielectric layer over the interconnect; and exposing at least one contact point on the interconnect through the second dielectric layer. An apparatus including a substrate having defined thereon a device layer including a plurality of device cells; a first dielectric layer disposed directly on the device layer; a plurality of metal interconnects, each of which is electrically connected to at least two of the device cells; and a second dielectric layer disposed over the first dielectric layer and over the interconnects, wherein the second dielectric layer is patterned in a positive or negative planar spring pattern.Type: GrantFiled: November 23, 2016Date of Patent: August 29, 2017Assignee: Sandia CorporationInventors: Murat Okandan, Gregory N. Nielson, Jose Luis Cruz-Campa, Carlos Anthony Sanchez
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Patent number: 9040424Abstract: A single crystal silicon etching method includes providing a single crystal silicon substrate having at least one trench therein. The single crystal silicon substrate is exposed to an anisotropic etchant that undercuts the single crystal silicon. By controlling the length of the etch, single crystal silicon islands or smooth vertical walls in the single crystal silicon may be created.Type: GrantFiled: March 9, 2012Date of Patent: May 26, 2015Assignee: MICRON TECHNOLOGY, INC.Inventors: Janos Fucsko, David H. Wells, Patrick Flynn, Whonchee Lee
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Patent number: 9034733Abstract: In one embodiment, semiconductor die are singulated from a semiconductor wafer having a backmetal layer by placing the semiconductor wafer onto a carrier tape with the backmetal layer adjacent the carrier tape, forming singulation lines through the semiconductor wafer to expose the backmetal layer within the singulation lines, and separating portions of the backmetal layer within the singulation lines using a pressurized fluid applied to the carrier tape.Type: GrantFiled: January 21, 2014Date of Patent: May 19, 2015Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: William F. Burghout, Dennis Lee Conner, Michael J. Seddon, Jay A. Yoder, Gordon M. Grivna
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Patent number: 8836129Abstract: A plug structure including a first dielectric layer, a second dielectric layer, a barrier layer and a second plug is provided. The first dielectric layer having a first plug therein is located on a substrate, wherein the first plug physically contacts a source/drain in the substrate. The second dielectric layer having an opening exposing the first plug is located on the first dielectric layer. The barrier layer conformally covers the opening, wherein the barrier layer has a bottom part and a sidewall part, and the bottom part is a single layer and physically contacts the first plug while the sidewall part is a dual layer. The second plug fills the opening and on the barrier layer. Moreover, a process of forming a plug structure is also provided.Type: GrantFiled: March 14, 2013Date of Patent: September 16, 2014Assignee: United Microelectronics Corp.Inventors: Ching-Wen Hung, Chih-Sen Huang, Po-Chao Tsao
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Patent number: 8828891Abstract: For modulating laser light for forming a modified region SD3 at an intermediate position between a position closer to a rear face 21 and a position closer to a front face 3 with respect to an object 1, a quality pattern J having a first brightness region extending in a direction substantially orthogonal to a line 5 and second brightness regions located on both sides of the first brightness region in the extending direction of the line 5 is used. After forming modified regions SD1, SD2 at positions closer to the rear face 21 but before forming modified regions SD4, SD5 at positions closer to the rear face 21 while using the front face 3 as a laser light entrance surface, the modified region SD3 is formed at the intermediate position by irradiation with laser light modulated according to a modulation pattern including the quality pattern J.Type: GrantFiled: January 5, 2011Date of Patent: September 9, 2014Assignee: Hamamatsu Photonics K.K.Inventor: Takeshi Sakamoto
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Patent number: 8809968Abstract: This invention relates to a semiconductor layer structure. The semiconductor layer structure described includes a substrate and a buffer layer deposited onto the substrate. The semiconductor layer structure is characterized in that a drain voltage threshold lower than the breakdown voltage threshold is determined by isolating ions that are selectively implanted in just one region of the substrate into the substrate, wherein charge can dissipate from the one contact through the buffer layer towards a substrate region without isolating ions, if the one potential deviates from the other at least by the drain voltage threshold, and wherein the substrate region without isolating ions is located underneath the one contact. The semiconductor layer structure described allows dissipation of currents induced by induction in blocking active structures without damaging the active structures.Type: GrantFiled: May 7, 2013Date of Patent: August 19, 2014Assignee: Forschungsverbund Berlin E.V.Inventors: Oliver Hilt, Rimma Zhytnytska, Hans-Joachim Würfl
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Patent number: 8778715Abstract: A method of making a neutron detector such as a microstructured semiconductor neutron detector is provided. The method includes the step of providing a particle-detecting substrate having a surface and a plurality of cavities extending into the substrate from the surface. The method also includes filling the plurality of cavities with a neutron-responsive material. The step of filling including the step of centrifuging nanoparticles of the neutron-responsive material with the substrate for a time and a rotational velocity sufficient to backfill the cavities with the nanoparticles. The material is responsive to neutrons absorbed, thereby, for releasing ionizing radiation reaction products.Type: GrantFiled: June 24, 2013Date of Patent: July 15, 2014Assignee: Radiation Detection Technologies, Inc.Inventors: Steven L. Bellinger, Ryan G. Fronk, Douglas S. McGregor
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Patent number: 8759228Abstract: In the manufacture of integrated circuits, reactive compositions that include a reactive etchant species and an oxygen-containing species can provide selective removal of target material and can reduce contamination of gas delivery lines.Type: GrantFiled: October 9, 2007Date of Patent: June 24, 2014Assignee: Micron Technology, Inc.Inventors: Aaron Wilson, Mark Kiehlbauch
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Patent number: 8709915Abstract: A method of manufacturing a semiconductor device comprises: forming a protective film so as to cover at least a side edge of a substrate; forming a trench, which is annular in shape when viewed oppositely to a first principal surface of the substrate, on the first principal surface by etching using a photoresist pattern; and forming an insulating film so as to fill the trench, to form an insulating ring.Type: GrantFiled: July 23, 2012Date of Patent: April 29, 2014Inventor: Takeo Tsukamoto
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Patent number: 8703551Abstract: Disclosed herein is a method of forming a semiconductor device. In one example, the method comprises performing at least one etching process to reduce a thickness of a P-active region of a semiconducting substrate to thereby define a recessed P-active region, performing a process in a process chamber to selectively form an as-deposited layer of a semiconductor material on the recessed P-active region, wherein the step of performing the at least one etching process is performed outside of the process chamber, and performing an etching process in the process chamber to reduce a thickness of the as-deposited layer of semiconductor material.Type: GrantFiled: May 6, 2011Date of Patent: April 22, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Stephan Kronholz, Andreas Ott
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Patent number: 8669190Abstract: In a method for manufacturing a semiconductor device, a process of providing a semiconductor wafer having a wiring layer having conductive patterns and a plurality of insulation films containing a first insulation film surrounding side surfaces of the conductive patterns are provided. After the process of providing the semiconductor wafer, a process of removing some regions of the plurality of insulation films to form openings is provided. Herein, the first insulation film is disposed to a position closer to the circumference of the semiconductor wafer than a position closest to the outermost circumference of the wafer among the arrangement positions of the conductive patterns.Type: GrantFiled: February 6, 2012Date of Patent: March 11, 2014Assignee: Canon Kabushiki KaishaInventors: Kenji Togo, Hiroaki Sano
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Patent number: 8664089Abstract: In one embodiment, semiconductor die are singulated from a semiconductor wafer having a backmetal layer by placing the semiconductor wafer onto a carrier tape with the backmetal layer adjacent the carrier tape, forming singulation lines through the semiconductor wafer to expose the backmetal layer within the singulation lines, and fluid machining the semiconductor wafer to remove the backmetal layer from the singulation lines.Type: GrantFiled: August 20, 2012Date of Patent: March 4, 2014Assignee: Semiconductor Components Industries, LLCInventors: William F. Burghout, Dennis Lee Conner, Michael J. Seddon, Jay A. Yoder
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Patent number: 8592316Abstract: A nitride semiconductor substrate includes two principal surfaces including an upper surface that is a growth face and a lower surface on its opposite side. An FWHM in a surface layer region at depths of from 0 to 250 nm from the upper surface is narrower than an FWHM in an inner region at depths exceeding 5 ?m from the upper surface, where the FWHMs are obtained by X-ray rocking curve measurement using diffraction off a particular asymmetric plane inclined relative to the upper surface.Type: GrantFiled: August 2, 2010Date of Patent: November 26, 2013Assignee: Hitachi Cable, Ltd.Inventors: Yuichi Oshima, Takehiro Yoshida
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Patent number: 8580597Abstract: A method for making a microelectronic device including, on a same substrate, at least one electro-mechanical component including a mobile structure of a monocrystalline semi-conductor material and a mechanism actuating and/or detecting the mobile structure, and with at least one transistor. The method a) provides a substrate including at least one first semi-conducting layer including at least one region in which a channel area of the transistor is provided, b) etches a second semi-conducting layer based on a given semi-conductor material, lying on an insulating layer placed on the first semi-conducting layer, to form at least one pattern of the mobile structure of the component in an area of monocrystalline semi-conductor material of the second semi-conducting layer, and at least one pattern of gate of the transistor on a gate dielectric area located facing the given region.Type: GrantFiled: March 26, 2010Date of Patent: November 12, 2013Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Eric Ollier, Audrey Berthelot
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Patent number: 8569180Abstract: The present invention is related shielding integrated devices using CMOS fabrication techniques to form an encapsulation with cavity. The integrated circuits are completed first using standard IC processes. A wafer-level hermetic encapsulation is applied to form a cavity above the sensitive portion of the circuits using IC-foundry compatible processes. The encapsulation and cavity provide a hermetic inert environment that shields the sensitive circuits from EM interference, noise, moisture, gas, and corrosion from the outside environment.Type: GrantFiled: July 5, 2012Date of Patent: October 29, 2013Assignee: mCube Inc.Inventor: Xiao (Charles) Yang
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Patent number: 8536025Abstract: A resized wafer using a negative photoresist ring, methods of manufacture and design structures thereof are disclosed. The method includes forming a ring within a radius of a wafer. The method also includes patterning a photoresist formed on the wafer, by exposing the photoresist to energy. Additionally, the method includes forming troughs in a substrate of the wafer based on the patterning of the photoresist, wherein the ring blocks formation of the troughs underneath the ring. The method also includes filling the troughs with a metal and resizing the wafer at an area of the ring.Type: GrantFiled: December 12, 2011Date of Patent: September 17, 2013Assignee: International Business Machines CorporationInventors: Dennis P. Hogan, Gregory S. Jankowski, Robert K. Leidy
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Patent number: 8501521Abstract: A method for forming a thin film photovoltaic device. The method includes providing a transparent substrate comprising a surface region. A first electrode layer is formed overlying the surface region. A copper layer is formed overlying the first electrode layer and an indium layer is formed overlying the copper layer to form a multi-layered structure. The method subjects at least the multi-layered structure to a thermal treatment process in an environment containing a sulfur bearing species to form a copper indium disulfide material and a thickness of substantially copper sulfide material. The thickness of the copper sulfide material is removed to expose a surface region having a copper poor surface comprising a copper to indium atomic ratio of less than about 0.95:1. The method subjects the copper poor surface to a copper species to convert the copper poor surface from an n-type semiconductor characteristic to a p-type semiconductor characteristic.Type: GrantFiled: September 21, 2009Date of Patent: August 6, 2013Assignee: Stion CorporationInventor: Howard W. H. Lee
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Patent number: 8486761Abstract: A multi-chip light emitting device (LED) uses a low-cost carrier structure that facilitates the use of substrates that are optimized to support the devices that require a substrate. Depending upon the type of LED elements used, some of the LED elements may be mounted on the carrier structure, rather than on the more expensive ceramic substrate. In like manner, other devices, such as sensors and control elements, may be mounted on the carrier structure as well. Because the carrier and substrate structures are formed independent of the encapsulation and other after-formation processes, these structures can be tested prior to encapsulation, thereby avoiding the cost of these processes being applied to inoperative structures.Type: GrantFiled: October 21, 2010Date of Patent: July 16, 2013Assignee: Koninklijke Philips Electronics N.V.Inventor: Serge J. Bierhuizen
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Patent number: 8486835Abstract: Non-production wafers of polycrystalline silicon are placed in non-production slots of a support tower for thermal processing monocrystalline silicon wafers. They may have thicknesses of 0.725 to 2 mm and be roughened on both sides. Nitride may be grown on the non-production wafers to a thickness of over 2 ?m without flaking. The polycrystalline silicon is preferably randomly oriented Czochralski polysilicon grown using a randomly oriented seed, for example, CVD grown silicon. Both sides are ground to introduce sub-surface damage and then oxidized and etch cleaned. An all-silicon hot zone of a thermal furnace, for example, depositing a nitride layer, may include a silicon support tower placed within a silicon liner and supporting the polysilicon non-production wafers with silicon injector tube providing processing gas within the liner.Type: GrantFiled: September 18, 2009Date of Patent: July 16, 2013Inventors: James E. Boyle, Reese Reynolds, Raanan Y. Zehavi, Tom L. Cadwell, Doris Mytton
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Patent number: 8487296Abstract: Methods, devices, systems and/or articles related to techniques for forming a graphene film on a substrate, and the resulting graphene layers and graphenated substrates are generally disclosed. Some example techniques may be embodied as methods or processes for forming graphene. Some other example techniques may be embodied as devices employed to manipulate, treat, or otherwise process substrates, graphite, graphene and/or graphenated substrates as described herein. Graphene layers and graphenated substrates produced by the various techniques and devices provided herein are also disclosed.Type: GrantFiled: November 25, 2009Date of Patent: July 16, 2013Assignee: New Jersey Institute of TechnologyInventors: Haim Grebel, Amrita Banerjee
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Patent number: 8476104Abstract: A method for forming a thin film photovoltaic device. The method includes providing a transparent substrate comprising a surface region, forming a first electrode layer overlying the surface region, forming a copper layer overlying the first electrode layer and forming an indium layer overlying the copper layer to form a multi-layered structure. The multi-layered structure is subjected to a thermal treatment process in an environment containing a sulfur bearing species to forming a copper indium disulfide material. The copper indium disulfide material comprising a copper-to-indium atomic ratio ranging from about 1.2:1 to about 2:1 and a thickness of substantially copper sulfide material having a copper sulfide surface region. The thickness of the copper sulfide material is selectively removed to expose a surface region having a copper poor surface comprising a copper to indium atomic ratio of less than about 0.95:1.Type: GrantFiled: September 18, 2009Date of Patent: July 2, 2013Assignee: Stion CorporationInventor: Howard W. H. Lee
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Patent number: 8435826Abstract: A method for forming a thin film photovoltaic device. The method includes providing a transparent substrate comprising a surface region and forming a first electrode layer overlying the surface region. The method forms a bulk copper indium disulfide material from a multi-layered structure comprising a copper species, an indium species, and a sulfur species overlying the first electrode layer. The bulk copper indium disulfide material comprises one or more portions of a copper poor copper indium disulfide material, a copper poor surface regions, and one or more portions of a sulfur deficient copper indium disulfide material characterized by at least a CuInS2-x species, where 0<x<2. The copper poor surface and one or more portions of the copper poor copper indium disulfide material are subjected to a sodium species derived from a sodium sulfide material to convert the copper poor surface from an n-type characteristic to a p-type characteristic.Type: GrantFiled: September 25, 2009Date of Patent: May 7, 2013Assignee: Stion CorporationInventor: Howard W. H. Lee
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Patent number: 8415235Abstract: In a conventional adhesive sheet laminated with a die attachment film, the die attachment film sometimes drops off from the die chip at the time of pick-up after die chip formation by dicing a wafer. The present invention provides an adhesive including a (meth)acrylate ester polymer, a urethane acrylate oligomer having 4 or more vinyl groups, and silicone microparticles. Another aspect of the invention, provides a process for producing electronic components, the process including: a wafer-pasting step of pasting a wafer on a surface of a die attachment film of an adhesive sheet; a dicing step of dicing the wafer into die chips; and a pick-up step of peeling the die attachment film from the adhesive layer after the dicing step, and picking up the die chip together with the die attachment film.Type: GrantFiled: May 10, 2010Date of Patent: April 9, 2013Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Satoru Kawata, Takeshi Saito
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Patent number: 8394662Abstract: A method for forming a thin film photovoltaic device. The method includes providing a transparent substrate comprising a surface region. A first electrode layer is formed overlying the surface region. A copper layer is formed overlying the first electrode layer and an indium layer is formed overlying the copper layer to form a multi-layered structure. The method subjects at least the multi-layered structure to a thermal treatment process in an environment containing a sulfur bearing species to form a copper indium disulfide material. The copper indium disulfide material comprising a copper-to-indium atomic ratio ranging from about 1.2:1 to about 2:1 and a thickness of substantially copper sulfide material. The thickness of the copper sulfide material is removed to expose a surface region having a copper poor surface comprising a copper to indium atomic ratio of less than about 0.95:1.Type: GrantFiled: September 22, 2009Date of Patent: March 12, 2013Assignee: Stion CorporationInventor: Howard W. H. Lee
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Patent number: 8389412Abstract: The invention relates to a finishing method for a silicon-on-insulator (SOI) substrate that includes an oxide layer buried between an active silicon layer and a support layer of silicon. The method includes applying the following steps in succession: a first rapid thermal annealing (RTA) of the SOI substrate; a sacrificial oxidation of the active silicon layer of the substrate conducted to remove a first oxide thickness; a second RTA of the substrate; and a second sacrificial oxidation of the active silicon layer conducted to remove a second oxide thickness that is thinner than the first oxide thickness.Type: GrantFiled: March 17, 2010Date of Patent: March 5, 2013Assignee: SoitecInventors: Walter Schwarzenbach, Sébastien Kerdiles, Patrick Reynaud, Ludovic Ecarnot, Eric Neyret
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Patent number: 8390129Abstract: The present invention relates to a semiconductor device with a plurality of mark through substrate vias, including a semiconductor substrate, a plurality of original through substrate vias and a plurality of mark through substrate vias. The original through substrate vias and the mark through substrate vias are disposed in the semiconductor substrate and protrude from the backside surface of the semiconductor substrate. The mark through substrate vias are added at a specific position and/or in a specific pattern and serve as a fiducial mark, which facilitates identifying the position and direction on the backside surface. Thus, the redistribution layer (RBL) or the special equipment for achieving the backside alignment (BSA) is not necessary.Type: GrantFiled: November 12, 2010Date of Patent: March 5, 2013Assignee: Advanced Semiconductor Engineering, IncInventors: Chi-Chih Shen, Jen-Chuan Chen, Hui-Shan Chang, Chung-Hsi Wu, Meng-Jen Wang
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Patent number: 8324081Abstract: An electrically insulative conformal coating is applied at least to the active (front) side and one or more sidewalls of the die during wafer processing. Also, a die has an electrically insulative conformal coating applied to at least the active (front) side and sidewalls. Also, assemblies include a stack of such die, electrically interconnected die-to-die; and assemblies include such a die or a stack of such die, electrically interconnected to underlying circuitry (for example in a substrate or a circuit board).Type: GrantFiled: March 4, 2011Date of Patent: December 4, 2012Inventors: Simon J. S. McElrea, Terrence Caskey, Scott McGrath, DeAnn Eileen Melcher, Reynaldo Co, Lawrence Douglas Andrews, Jr., Weiping Pan, Grant Villavicencio, Yong Du, Scott Jay Crane, Zongrong Liu
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Publication number: 20120241941Abstract: A semiconductor device includes a substrate with conductive traces. A semiconductor die is mounted with an active surface oriented toward the substrate. An underfill material is deposited between the semiconductor die and substrate. A recess is formed in an interior portion of the semiconductor die that extends from a back surface of the semiconductor die opposite the active surface partially through the semiconductor die such that a peripheral portion of the back surface of the semiconductor die is offset with respect to a depth of the recess. A thermal interface material (TIM) is deposited over the semiconductor die and into the recess such that the TIM in the recess is laterally supported by the peripheral portion of the semiconductor die to reduce flow of the TIM away from the semiconductor die. A heat spreader including protrusions is mounted over the semiconductor die and contacts the TIM.Type: ApplicationFiled: March 21, 2011Publication date: September 27, 2012Applicant: STATS CHIPPAC, LTD.Inventors: OhHan Kim, YongHee Kang, KyungHoon Lee
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Patent number: 8273654Abstract: Producing a vertical transistor includes providing a substrate including a gate material layer stack with a reentrant profile. An electrically insulating material layer is deposited over a portion of the gate material layer stack and over a portion of the substrate. A patterned deposition inhibiting material is deposited over the electrically insulating material layer. A semiconductor material layer is deposited over the electrically insulating material layer using a selective area deposition process in which the semiconductor material layer is not deposited over the patterned deposition inhibiting material.Type: GrantFiled: September 29, 2011Date of Patent: September 25, 2012Assignee: Eastman Kodak CompanyInventors: Shelby F. Nelson, David H. Levy, Lee W. Tutt
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Patent number: 8273666Abstract: Formation of a bottom electrode for an MTJ device on a silicon nitride substrate is facilitated by including a protective coating that is partly consumed during etching of the alpha tantalum portion of said bottom electrode. Adhesion to SiN is enhanced by using a TaN/NiCr bilayer as “glue”.Type: GrantFiled: November 19, 2010Date of Patent: September 25, 2012Assignee: MagIC Technologies, Inc.Inventors: Rongfu Xiao, Cheng T. Horng, Ru-Ying Tong, Chyu-Jinh Torng, Tom Zhong, Witold Kula, Terry Kin Ting Ko, Wei Cao, Wai-Ming J. Kan, Liubo Hong
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Publication number: 20120223308Abstract: The present invention provides a thin-film transistor capable of high-speed operation, a process for producing the same, and a display device including the same. The thin-film transistor of the present invention includes, on a substrate, in the order of: a gate electrode; a gate insulating film; an oxide semiconductor film; and a protective insulating film, the protective insulating film having a planar shape that is completely or substantially the same as the planar shape of the gate electrode.Type: ApplicationFiled: June 17, 2010Publication date: September 6, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Tohru Okabe, Yoshimasa Chikama
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Publication number: 20120220134Abstract: A method for clearing native oxide is described. A substrate is provided, including an exposed portion whereon a native oxide layer has been formed. A clearing process is performed to the substrate using nitrogen trifluoride (NF3) and ammonia (NH3) as a reactant gas, wherein the volumetric flow rate of NF3 is greater than that of NH3.Type: ApplicationFiled: May 10, 2012Publication date: August 30, 2012Inventors: Yen-Chu Chen, Teng-Chun Tsai, Chien-Chung Huang, Keng-Jen Liu
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Publication number: 20120208321Abstract: Methods of protecting a surface of a copper layer or a copper bonding pad on a semiconductor device against oxidation. A surface of the layer or bonding pad is cleaned by removing an oxidation layer with a plasma. A polymer layer is formed on the cleaned surface of the layer using a plasma-enhanced deposition process to protect the cleaned surface of the layer against exposure to an oxidizing gas.Type: ApplicationFiled: February 11, 2011Publication date: August 16, 2012Applicant: NORDSON CORPORATIONInventors: David Keating Foote, James Donald Getty
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Patent number: 8236611Abstract: A method is disclosed for singulating die from a substrate having a sacrificial layer and one or more device layers, with a retainer being formed in the device layer(s) and anchored to the substrate. Deep Reactive Ion Etching (DRIE) etching of a trench through the substrate from the bottom side defines a shape for each die. A handle wafer is then attached to the bottom side of the substrate, and the sacrificial layer is etched to singulate the die and to form a frame from the retainer and the substrate. The frame and handle wafer, which retain the singulated die in place, can be attached together with a clamp or a clip and to form a package for the singulated die. One or more stops can be formed from the device layer(s) to limit a sliding motion of the singulated die.Type: GrantFiled: April 13, 2010Date of Patent: August 7, 2012Assignee: Sandia CorporationInventors: Robert C. Anderson, Randy J. Shul, Peggy J. Clews, Michael S. Baker, Maarten P. De Boer
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Patent number: 8222155Abstract: A method in a plasma processing system for etching a feature through a given layer on a semiconductor substrate. The method includes placing the substrate in a plasma processing chamber of the plasma processing system. The method also includes flowing an etchant gas mixture into the plasma processing chamber, the etchant gas mixture being configured to etch the given layer. The method additionally includes striking a plasma from the etchant source gas. Furthermore, the method includes etching the feature at least partially through the given layer while applying a bias RF signal to the substrate, the bias RF signal having a bias RF frequency of between about 45 MHz and about 75 MHz. The bias RF signal further has a bias RF power component that is configured to cause the etch feature to be etched with an etch selectivity to a second layer of the substrate that is higher than a predefined selectivity threshold.Type: GrantFiled: January 4, 2008Date of Patent: July 17, 2012Assignee: Lam Research CorporationInventors: Kenji Takeshita, Odette Turmel, Felix Kozakevich, Eric Hudson
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Patent number: 8187907Abstract: A method of manufacturing a solar cell by providing a first substrate; depositing on the first substrate a sequence of layers of semiconductor material forming a solar cell including a top subcell and a bottom subcell; forming a metal back contact over the bottom subcell; forming a group of discrete, spaced-apart first bonding elements over the surface of the back metal contact; attaching a surrogate substrate on top of the back metal contact using the bonding elements; and removing the first substrate to expose the surface of the top subcell.Type: GrantFiled: May 7, 2010Date of Patent: May 29, 2012Assignee: Emcore Solar Power, Inc.Inventor: Fred Newman
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Publication number: 20120129351Abstract: A method and apparatus for forming an amorphous carbon layer on a substrate is provided. A first portion of the amorphous carbon layer having a high stress level is formed from a hydrocarbon precursor having high dilution ratio, with optional amine precursor included to add stress-elevating nitrogen. A second portion of the amorphous carbon layer having a low stress level is formed on the first portion by reducing the dilution ratio of the hydrocarbon precursor and lowering or eliminating the amine gas. Pressure, temperature, and RF power input may be adjusted instead of, or in addition to, precursor flow rates, and different precursors may be used for different stress levels.Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Applicant: APPLIED MATERIALS, INC.Inventors: Anthony Konecni, Josephine Juhwei Liu, Deenesh Padhi, Bok Hoen Kim, William H. Mc Clintock
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Patent number: 8178439Abstract: A method is provided for integrating metal-containing cap layers into copper (Cu) metallization of semiconductor devices. In one embodiment, the method includes providing a planarized patterned substrate containing metal surfaces and dielectric layer surfaces with a residue formed thereon, removing the residue from the planarized patterned substrate, and depositing metal-containing cap layers selectively on the metal surfaces by exposing the dielectric layer surfaces and the metal surfaces to a deposition gas containing metal-containing precursor vapor. The removing includes treating the planarized patterned substrate containing the residue with a reactant gas containing a hydrophobic functional group, and exposing the treated planarized patterned substrate to a reducing gas.Type: GrantFiled: March 30, 2010Date of Patent: May 15, 2012Assignee: Tokyo Electron LimitedInventors: Kazuhito Tohnoe, Frank M. Cerio, Jr.
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Patent number: 8178425Abstract: An optical device wafer processing method for dividing an optical device wafer into a plurality of individual optical devices. The optical device wafer is composed of a substrate and a semiconductor layer formed on the front side of the substrate. The optical devices are partitioned by a plurality of crossing division lines formed on the semiconductor layer.Type: GrantFiled: January 21, 2011Date of Patent: May 15, 2012Assignee: Disco CorporationInventors: Tasuku Koyanagi, Hiroshi Morikazu
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Publication number: 20120108043Abstract: A resist pattern is formed by coating a first positive resist composition comprising a polymer comprising 20-100 mol % of aromatic group-containing recurring units and adapted to turn alkali soluble under the action of an acid onto a substrate to form a first resist film, coating a second positive resist composition comprising a C3-C8 alkyl alcohol solvent which does not dissolve the first resist film on the first resist film to form a second resist film, exposing, baking, and developing the first and second resist films simultaneously with a developer.Type: ApplicationFiled: October 24, 2011Publication date: May 3, 2012Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Jun Hatakeyama, Kenji Funatsu
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Patent number: 8153511Abstract: It is an object to improve a yield of a step of cutting off a substrate. A substrate is cut off by using an ablation process. An ablation process uses a phenomenon in which a molecular bond in a portion irradiated with a laser beam, that is, a portion which absorbs the laser beam is cut off, photodegraded, and evaporated. In other words, a substrate is irradiated with a laser beam, a molecular bond in a portion of the substrate is cut off, photodegraded, and evaporated; accordingly, a groove is formed in the substrate. A method for cutting the substrate has steps of selectively emitting a laser beam and forming a groove in the substrate, and selectively emitting a laser beam to the groove and cutting off the substrate. Methods for manufacturing a groove in a substrate and cutting off a substrate are used for manufacturing a semiconductor device.Type: GrantFiled: May 30, 2006Date of Patent: April 10, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daiki Yamada, Naoto Kusumoto
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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: 8093157Abstract: Removing photoresist from a workpiece is described when a region of tungsten is exposed. A plasma is generated from a gas input consisting essentially of hydrogen gas and oxygen gas in a predetermined ratio. The plasma causes the photoresist to be removed from the workpiece while the region of tungsten is left substantially unmodified. The ratio of the hydrogen to oxygen can be adjusted to a particular value which causes the photoresist to be removed at about a maximum removal rate that corresponds to a minimum tungsten loss rate of about zero. Polysilicon oxidation in the presence of tungsten is described with little or no tungsten loss.Type: GrantFiled: July 3, 2007Date of Patent: January 10, 2012Assignee: Mattson Technology, Inc.Inventors: Li Diao, Songlin Xu
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Patent number: 8080477Abstract: A method for using a film formation apparatus for a semiconductor process to form a thin film on a target substrate inside a reaction chamber includes performing a cleaning process to remove a by-product film deposited on a predetermined region in a gas route from a film formation gas supply system, which supplies a film formation gas contributory to film formation, through the reaction chamber to an exhaust system, by alternately repeating an etching step and an exhaust step a plurality of times in a state where the reaction chamber does not accommodate the target substrate. The etching step includes supplying a cleaning gas in an activated state for etching the by-product film onto the predetermined region, thereby etching the by-product film. The exhaust step includes stopping supply of the cleaning gas and exhausting gas by the exhaust system from a space in which the predetermined region is present.Type: GrantFiled: October 7, 2008Date of Patent: December 20, 2011Assignee: Tokyo Electron LimitedInventors: Nobutake Nodera, Jun Sato, Masanobu Matsunaga, Kazuhide Hasebe
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Semiconductor device and method of supporting a wafer during backgrinding and reflow of solder bumps
Patent number: 8048776Abstract: A semiconductor device is made by providing a semiconductor wafer having an active surface, forming an under bump metallization layer on the active surface of the semiconductor wafer, forming a first photosensitive layer on the active surface of the semiconductor wafer, exposing a selected portion of the first photosensitive layer over the under bump metallization layer to light, removing a portion of a backside of the semiconductor wafer, opposite to the active surface, prior to developing the exposed portion of the first photosensitive layer, developing the exposed portion of the first photosensitive layer after removing the portion of the backside of the semiconductor wafer, and depositing solder material over the under bump metallization layer to form solder bumps. The remaining portion of the first photosensitive layer is then removed. A second photosensitive layer or metal stencil can be formed over the first photosensitive layer.Type: GrantFiled: February 22, 2008Date of Patent: November 1, 2011Assignee: STATS ChipPAC, Ltd.Inventors: Byung Tai Do, Heap Hoe Kuan, Yaojian Lin, Rui Huang -
Publication number: 20110217806Abstract: An electrode (3i) of a radiofrequency parallel plate plasma reactor comprises an electrode surface of a multitude of surfaces of metal members (28) which reside on dielectric spacing members (29), whereby the metal members (28) are mounted in an electrically floating manner. The dielectric members (29) are mounted, opposite to the metal members (28), upon a metal Rf supply body (14a).Type: ApplicationFiled: September 28, 2009Publication date: September 8, 2011Applicant: OERLIKON SOLAR AG, TRUEBBACHInventor: Stephan Jost