Thinning Of Semiconductor Substrate Patents (Class 438/459)
  • Patent number: 8916407
    Abstract: A method of manufacturing a micromachined resonator having a moveable member comprising forming the moveable member from a material having a first concentration of dopants of a first impurity type, depositing a dopant carrier layer on or over at least a portion of the moveable member, wherein the dopant carrier layer includes one or more dopants of the first impurity type, transferring at least a portion of the one or more dopants from the dopant carrier layer to the moveable member, wherein, in response, the concentration of dopants of the first impurity type in the moveable member increases (for example, to greater than 1019 cm?3, and preferably between 1019 cm?3 and 1021 cm?3). The method further includes removing the dopant carrier layer and may include providing an encapsulation structure over the moveable member of the micromachined resonator.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 23, 2014
    Assignee: SiTime Corporation
    Inventors: Charles I Grosjean, Ginel Hill, Paul M. Hagelin, Renata Melamud Berger, Aaron Partridge, Markus Lutz
  • Publication number: 20140367777
    Abstract: A method for forming integrated circuit includes providing a first semiconductor substrate having a front surface and a back surface that is opposite to the front surface. One or more first trenches are in the first semiconductor substrate from the front surface side, the first trenches being characterized by a first depth. One or more second trenches are formed in the first semiconductor substrate from the front surface side, the second trenches being characterized by a second depth which greater than the first depth. A horizontal isolation layer is formed parallel to the front surface and at a third depth from the front surface. The method also includes forming a first recessed region extending in the first semiconductor substrate from the back surface side to the horizontal isolation layer that results in a thinned semiconductor region having a thickness substantially equal to the third depth.
    Type: Application
    Filed: November 19, 2013
    Publication date: December 18, 2014
    Applicant: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Herb He HUANG, Cliff DROWLEY
  • Patent number: 8912055
    Abstract: Disclosed are methods for forming hybrid metal-oxide-semiconductor field effect transistors (MOSFETs) and the hybrid MOSFETS thus obtained. In one embodiment, a method is disclosed that includes providing a first substrate comprising a first region and a second region, providing a second substrate comprising a second semiconductor layer and an insulating layer overlaying the second semiconductor layer, and direct substrate bonding the second substrate to the first substrate, thereby contacting the first region and the second region with the insulating layer. The method further includes selectively removing the second semiconductor layer and the insulating layer in the first region, thereby exposing the first semiconductor layer in the first region, forming a first gate stack of a first MOSFET on the exposed first semiconductor layer in the first region, and forming a second gate stack of a second MOSFET on the second semiconductor layer in the second region.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: December 16, 2014
    Assignee: IMEC
    Inventors: Thomas Y. Hoffman, Matty Caymax, Niamh Waldron, Geert Hellings
  • Patent number: 8906778
    Abstract: The present invention related to a method for manufacturing a semiconductor, comprising steps of: providing a growing substrate; forming a semiconductor substrate on the growing substrate; forming a first structure with plural grooves and between the growing substrate and the semiconductor substrate; and changing the temperature of the growing substrate and the semiconductor substrate.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: December 9, 2014
    Assignee: National Chiao Tung University
    Inventors: YewChung Sermon Wu, Bau-Ming Wang, Feng-Ching Hsiao
  • Patent number: 8906781
    Abstract: The present invention relates to a method for electrically connecting wafers, which physically bonds two wafers through an oxide-to-oxide bonding method and then electrically connects the two wafers through a butting contact structure. The wafers are physically bonded to each other through a relatively simple method, and then electrically connected to through TSVs or butting contact holes. Therefore, since the fabrication process may be simplified, a process error may be reduced, and the product yield may be improved.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: December 9, 2014
    Assignee: Siliconfile Technologies Inc.
    Inventor: In Gyun Jeon
  • Patent number: 8906775
    Abstract: A method for fabricating a semiconductor device includes forming a first semiconductor wafer, in which a circuit part and a first bonding layer are stacked, on a first semiconductor substrate, forming a second semiconductor wafer, which includes structures and an insulating layer for gap-filling between the structures, on a second semiconductor substrate, the structures including a pillar and bit lines stacked therein, bonding the first semiconductor wafer with the second semiconductor wafer so that the first bonding layer faces the insulating layer, and separating the second semiconductor substrate from the bonded second semiconductor wafer.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: December 9, 2014
    Assignee: SK Hynix Inc.
    Inventors: Heung-Jae Cho, Eui-Seong Hwang, Tae-Yoon Kim, Kyu-Hyung Yoon
  • Publication number: 20140353853
    Abstract: The invention relates to a method for manufacturing a multilayer strucute on a first substrate, the method including: using the first substrate made of a first material having a Young's modulus Ev and a thickness ev, and using a second substrate covered by the multilayer structure, the second substrate being made of a second material having a Young's modulus Es that is different from the Young's modulus Ev and a thickness es, the thicknesses es and ev complying, plus or minus 10%, with the relation (I); molecularly bonding the first substrate and the multilayer structure together; and removing the second substrate.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 4, 2014
    Inventors: Umberto Rossini, Thierry Flahaut, Vincent Larrey
  • Patent number: 8900971
    Abstract: The invention provides a method for manufacturing a bonded substrate by bonding a base substrate to a bond substrate through an insulator film, including: a porous layer forming step of partially forming a porous layer or forming a porous layer whose thickness partially varies on a bonding surface of the base substrate; an insulator film forming step of changing the porous layer into the insulator film, and thereby forming the insulator film whose thickness partially varies on the bonding surface of the base substrate; a bonding step of bonding the base substrate to the bond substrate through the insulator film; and a film thickness reducing step of reducing a film thickness of the bonded bond substrate to form a thin-film layer. As a result, there is provided the method for manufacturing a bonded substrate that enables obtaining an insulator film whose thickness partially varies with use of a simple method.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: December 2, 2014
    Assignee: Shin-Etsu Handotai Co., Ltd.
    Inventors: Tsuyoshi Ohtsuki, Wei Feng Qu, Fumio Tahara, Yuuki Ooi, Kyoko Mitani
  • Patent number: 8900966
    Abstract: Provided is an apparatus that includes an integrated circuit located in a first region of a substrate having first and second opposing major surfaces and an alignment mark located in a second region of the substrate and extending through the substrate between the first and second surfaces.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: December 2, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jen-Cheng Liu, Dun-Nian Yaung, Shou-Gwo Wuu
  • Patent number: 8896639
    Abstract: An object of the present invention is to provide a small-sized active matrix type liquid crystal display device that may achieve large-sized display, high precision, high resolution and multi-gray scales. According to the present invention, gray scale display is performed by combining time ratio gray scale and voltage gray scale in a liquid crystal display device which performs display in OCB mode. In doing so, one frame is divided into subframes corresponding to the number of bit for the time ratio gray scale. Initialize voltage is applied onto the liquid crystal upon display of a subframe.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: November 25, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama
  • Patent number: 8895362
    Abstract: Methods and apparatus provide for a structure, including: a first glass material layer; and a second material layer bonded to the first glass material layer via bonding material, where the bonding material is formed from one of glass frit material, ceramic frit material, glass ceramic frit material, and metal paste, which has been melted and cured.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: November 25, 2014
    Assignee: Corning Incorporated
    Inventors: James Gregory Couillard, Christopher Paul Daigler, Jiangwei Feng, Yawei Sun, Lili Tian, Ian David Tracy
  • Publication number: 20140342530
    Abstract: A temporary adhesive material for a wafer includes a first temporary adhesive layer of a silicone-containing polymer layer containing a photo base generator and a second temporary adhesive layer of a silicone-containing polymer layer which is laminated on the first temporary adhesive layer, does not contain the photo base generator, and is different from the polymer layer. Thereby, there can be formed a temporary adhesive layer having high thickness uniformity, even on a wafer having a step. Because of the thickness uniformity, a thin wafer having a uniform thickness of 50 ?m or less can be easily obtained. When a thin wafer is produced and then delaminated from a support, the wafer can be delaminated from the support by exposure at a low exposure dose without stress. Therefore, a brittle thin wafer can be easily handled without causing damage, and a thin wafer can be easily produced.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 20, 2014
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroyuki YASUDA, Michihiro SUGO
  • Patent number: 8890276
    Abstract: A three-dimensional integrated structure is formed from a first integrated circuit with a first cavity filled with a first conductive material and a second integrated circuit with a second cavity filled with a second conductive material, the second cavity facing the first cavity. The filled first cavity forms a first element and the filled second cavity forms a second element, the first and second elements separated from each other by a cavity. The first and second conductive materials have different thermal expansion coefficients. A contact detection circuit is electrically connected to the filled first and second cavities, and is operable to sense electrical contact between the first and second conductive materials in response to a change in temperature.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: November 18, 2014
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventor: Laurent-Luc Chapelon
  • Patent number: 8883609
    Abstract: According to an embodiment, a method for manufacturing a semiconductor structure includes providing a first monocrystalline semiconductor portion having a first lattice constant in a reference direction and forming a second monocrystalline semiconductor portion having a second lattice constant in the reference direction, which is different to the first lattice constant, on the first monocrystalline semiconductor portion.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: November 11, 2014
    Assignee: Infineon Technologies Austria AG
    Inventors: Mathias Plappert, Hans-Joachim Schulze
  • Patent number: 8883613
    Abstract: A disclosed method of manufacturing a semiconductor device includes forming a groove on a first surface of a semiconductor wafer along an outer periphery of the semiconductor wafer, forming a semiconductor device on the first surface, forming an adhesive layer on the first surface to cover the semiconductor device, bonding a support substrate to the first surface by the adhesive layer, grinding after the adhering of the support substrate a second surface of the semiconductor wafer opposite to the first surface, and dicing after the grinding the semiconductor wafer into individual semiconductor chips.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: November 11, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Tamotsu Owada
  • Patent number: 8877559
    Abstract: Embodiments of the present invention provide a novel process integration for air gap formation at the sidewalls for a Through Silicon Via (TSV) structure. The sidewall air gap formation scheme for the TSV structure of disclosed embodiments reduces parasitic capacitance and depletion regions in between the substrate silicon and TSV conductor, and serves to also reduce mechanical stress in silicon substrate surrounding the TSV conductor.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: November 4, 2014
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Shan Gao, Seung Man Choi
  • Patent number: 8877609
    Abstract: A method for manufacturing a bonded substrate that has an insulator layer in part of the bonded substrate includes: partially forming a porous layer or forming a porous layer whose thickness partially varies on a bonding surface of the base substrate; performing a heat treatment to the base substrate having the porous layer formed thereon to change the porous layer into the insulator layer, and thereby forming the insulator layer whose thickness partially varies on the bonding surface of the base substrate; removing the insulator layer whose thickness varies by an amount corresponding to a thickness of a small-thickness portion by etching; bonding the bonding surface of the base substrate on which an unetched remaining insulator layer is exposed to a bond substrate; and reducing a thickness of the bonded bond substrate and thereby forming a thin film layer.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: November 4, 2014
    Assignee: Shin-Etsu Handotai Co., Ltd.
    Inventors: Tsuyoshi Ohtsuki, Wei Feng Qu, Fumio Tahara, Yuuki Ooi, Kyoko Mitani
  • Patent number: 8877077
    Abstract: A method of printing comprises the steps of: providing a solid state material having an exposed surface; applying an auxiliary layer to the exposed surface to form a composite structure, the auxiliary layer having a stress pattern; subjecting the composite structure to conditions facilitating fracture of the solid state material along a plane at a depth therein; and removing the auxiliary layer and, therewith, a layer of the solid state material terminating at the fracture depth, wherein an exposed surface of the removed layer of solid state material has a surface topology corresponding to the stress pattern.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: November 4, 2014
    Assignee: Siltectra GmbH
    Inventor: Lukas Lichtensteiger
  • Patent number: 8877637
    Abstract: Through-silicon-via (TSV) based 3D integrated circuit (3D IC) stacks are aligned, bonded and electrically interconnected using a transparent alignment material in the TSVs until the wafers are bonded. Embodiments include providing a first wafer having a first device layer and at least one first TSV filled with a conductive material, providing a second wafer having a second device layer, forming at least one second TSV in the second wafer, filling each second TSV with an alignment material, thinning the second wafer until the transparent material extends all the way through the wafer, aligning the first and second wafers, bonding the first and second wafers, removing the alignment material from the second wafer, and filling each second TSV in the second wafer with a conductive material.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: November 4, 2014
    Assignee: GlobalFoundries Singapore Pte. Ltd
    Inventors: Hong Yu, Huang Liu
  • Patent number: 8871588
    Abstract: A method of fabricating a memory cell comprises forming a plurality of doped semiconductor layers on a carrier substrate. The method further comprises forming a plurality of digit lines separated by an insulating material. The digit lines are arrayed over the doped semiconductor layers. The method further comprises etching a plurality of trenches into the doped semiconductor layers. The method further comprises depositing an insulating material into the plurality of trenches to form a plurality of electrically isolated transistor pillars. The method further comprises bonding at least a portion of the structure formed on the carrier substrate to a host substrate. The method further comprises separating the carrier substrate from the host substrate.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: October 28, 2014
    Assignee: Micron Technology, Inc.
    Inventors: David H. Wells, H. Montgomery Manning
  • Patent number: 8871611
    Abstract: A method for bonding first and second wafers by molecular adhesion. The method includes placing the wafers in an environment having a first pressure (P1) greater than a predetermined threshold pressure above which initiation of bonding wave propagation is prevented, bringing the first wafer and the second wafer into alignment and contact, and spontaneously initiating the propagation of a bonding wave between the wafers after they are in contact solely by reducing the pressure within the environment to a second pressure (P2) below the threshold pressure.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: October 28, 2014
    Assignee: Soitec
    Inventor: Marcel Broekaart
  • Patent number: 8871610
    Abstract: To increase adhesion between a single crystal semiconductor layer and a base substrate and to reduce bonding defects therebetween. To perform radical treatment on a surface of a semiconductor substrate to form a first insulating film on the semiconductor substrate; irradiate the semiconductor substrate with accelerated ions through the first insulating film to form an embrittlement region in the semiconductor substrate; form a second insulating film on the first insulating film; perform heat treatment after bonding a surface of the second insulating film and a surface of the base substrate to perform separation along the embrittlement region so that a semiconductor layer is formed over the base substrate with the first and second insulating films interposed therebetween; etch the semiconductor layer; and irradiate the semiconductor layer on which the etching is performed with a laser beam.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: October 28, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Akihisa Shimomura, Masaki Koyama, Eiji Higa
  • Patent number: 8871607
    Abstract: A method for producing a hybrid substrate, including a support substrate, a continuous buried insulator layer and, on this continuous layer, a hybrid layer including alternating zones of a first material and at least one second material, wherein these two materials are different by their nature and/or their crystallographic characteristics. The method forms a hybrid layer, including alternating zones of first and second materials, on a homogeneous substrate, assembles this hybrid layer, the continuous insulator layer and the support substrate, and eliminates a part at least of the homogeneous substrate, before or after the assembling.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: October 28, 2014
    Assignees: S.O.I. TEC Silicon on Insulator Technologies, Commissariat a l'Energie Atomique
    Inventors: Thomas Signamarcheix, Franck Fournel, Hubert Moriceau
  • Patent number: 8865520
    Abstract: The present invention provides a temporary carrier bonding and detaching process. A first surface of a semiconductor wafer is mounted on a first carrier by a first adhesive layer, and a first isolation coating disposed between the first adhesive layer and the first carrier. Then, a second carrier is mounted on the second surface of the semiconductor wafer. The first carrier is detached. Then, the first surface of the semiconductor wafer is mounted on a film frame. The second carrier is detached. The method of the present invention utilizes the second carrier to support and protect the semiconductor wafer, after which the first carrier is detached. Therefore, the semiconductor wafer will not be damaged or broken, thereby improving the yield rate of the semiconductor process. Furthermore, the simplicity of the detaching method for the first carrier allows for improvement in efficiency of the semiconductor process.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: October 21, 2014
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Kuo-Pin Yang, Wei-Min Hsiao, Cheng-Hui Hung
  • Patent number: 8865489
    Abstract: Described herein are printable structures and methods for making, assembling and arranging electronic devices. A number of the methods described herein are useful for assembling electronic devices where one or more device components are embedded in a polymer which is patterned during the embedding process with trenches for electrical interconnects between device components. Some methods described herein are useful for assembling electronic devices by printing methods, such as by dry transfer contact printing methods. Also described herein are GaN light emitting diodes and methods for making and arranging GaN light emitting diodes, for example for display or lighting systems.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: October 21, 2014
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: John A. Rogers, Ralph Nuzzo, Hoon-sik Kim, Eric Brueckner, Sang Il Park, Rak Hwan Kim
  • Publication number: 20140308801
    Abstract: Bonding of one or more semiconductor layers to a glass substrate is facilitated by depositing spin-on-glass (SOG) on the top of the semiconductor layers. The SOG is then bonded to the glass substrate, and after that, the original substrate of the semiconductor layers is removed. The resulting structure has the semiconductor layers disposed on the glass substrate with a layer of SOG sandwiched between. Bonding is always between glass and glass, and is independent of the composition of the target layers. Thus, it can provide “anything on glass”. For example, X-on-insulator (XOI), where X can be silicon, germanium, GaAs, GaN, SiC, graphene, etc. The spin-on-glass also helps with the surface roughness requirement.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 16, 2014
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jae Hyung Lee, Woo Shik Jung, Krishna C. Saraswat
  • Publication number: 20140306268
    Abstract: A method for obtaining a heterogeneous substrate intended for use in the production of a semiconductor comprises the following steps: (a) obtaining a first substrate (2) made from a type II-VI or type III-V material and a second substrate (1), each substrate being substantially planar and each substrate having a pre-determined surface area; (b) grinding a non-through recess (10) into the second substrate (1), the surface area of said recess being greater than the surface area of the first substrate, such that the first substrate can be housed in the recess; (c) depositing a bonding material (15) in the recess (10); (d) depositing the first substrate (2) in the recess (10) of the second substrate and securing the first substrate in the second substrate at a temperature below 300° C.; and (e) leveling the first and second substrates in order to obtain a heterogeneous substrate having a substantially planar face (30).
    Type: Application
    Filed: October 31, 2012
    Publication date: October 16, 2014
    Inventors: Abdenacer Ait-Mani, Stephanie Huet
  • Patent number: 8859395
    Abstract: Techniques for processing power transistor devices are provided. In one aspect, the curvature of a power transistor device comprising a device film formed on a substrate is controlled by thinning the substrate, the device having an overall residual stress attributable at least in part to the thinning step, and applying a stress compensation layer to a surface of the device film, the stress compensation layer having a tensile stress sufficient to counterbalance at least a portion of the overall residual stress of the device. The resultant power transistor device may be part of an integrated circuit.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: October 14, 2014
    Assignee: Agere Systems LLC
    Inventors: Roger A. Fratti, Warren K. Waskiewicz
  • Patent number: 8859390
    Abstract: A structure to prevent propagation of a crack into the active region of a 3D integrated circuit, such as a crack initiated by a flaw at the periphery of a thinned substrate layer or a bonding layer, and methods of forming the same is disclosed.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: October 14, 2014
    Assignee: International Business Machines Corporation
    Inventors: Mukta G Farooq, John A Griesemer, William F Landers, Ian D Melville, Thomas M Shaw, Huilong Zhu
  • Patent number: 8859394
    Abstract: A method of fabricating a composite semiconductor structure includes providing an SOI substrate including a plurality of silicon-based devices, providing a compound semiconductor substrate including a plurality of photonic devices, and dicing the compound semiconductor substrate to provide a plurality of photonic dies. Each die includes one or more of the plurality of photonics devices. The method also includes providing an assembly substrate having a base layer and a device layer including a plurality of CMOS devices, mounting the plurality of photonic dies on predetermined portions of the assembly substrate, and aligning the SOI substrate and the assembly substrate. The method further includes joining the SOI substrate and the assembly substrate to form a composite substrate structure and removing at least the base layer of the assembly substrate from the composite substrate structure.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: October 14, 2014
    Assignee: Skorpios Technologies, Inc.
    Inventors: John Dallesasse, Stephen B. Krasulick, Timothy Creazzo, Elton Marchena
  • Patent number: 8859392
    Abstract: A manufacturing method of a power semiconductor includes steps of providing a first semiconductor substrate and a second semiconductor substrate, forming a metal oxide semiconductor layer on a first surface of the first semiconductor substrate, grinding a second surface of the first semiconductor substrate, forming a N-type buffer layer and a P-type injection layer on a third surface of the second semiconductor substrate through ion implanting, grinding a fourth surface of the second semiconductor substrate, and combining the second surface of the first semiconductor substrate with the third surface of the second semiconductor substrate for forming a third semiconductor substrate. As a result, the present invention achieves the advantages of enhancing the process flexibility and un-limiting the characteristics of the power semiconductor.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: October 14, 2014
    Assignee: Mosel Vitelic Inc.
    Inventor: Chien-Ping Chang
  • Patent number: 8853054
    Abstract: A method is provided for preparing multilayer semiconductor structures, such as silicon-on-insulator wafers, having reduced warp and bow. Reduced warp multilayer semiconductor structures are prepared by forming a dielectric structure on the exterior surfaces of a bonded pair of a semiconductor device substrate and a semiconductor handle substrate having an intervening dielectric layer therein. Forming a dielectric layer on the exterior surfaces of the bonded pair offsets stresses that may occur within the bulk of the semiconductor handle substrate due to thermal mismatch between the semiconductor material and the intervening dielectric layer as the structure cools from process temperatures to room temperatures.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: October 7, 2014
    Assignee: SunEdison Semiconductor Limited
    Inventors: Guoqiang Zhang, Jeffrey L. Libbert
  • Patent number: 8853544
    Abstract: Various aspects of the present invention provide a transfer method for peeling off an MIM structure (comprising lower electrode/dielectric layer/upper electrodes) film formed on a supporting substrate and then transferring onto a transfer substrate with sufficiently uniform and low damage. Various aspects of the present invention also provide a thin film element provided with one or more thin film components which are transferred onto a substrate by using said method.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: October 7, 2014
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Ryuichi Kondou, Kenichi Ota
  • Patent number: 8853005
    Abstract: When forming a conductive film by a method comprising sputtering after grinding the back surface of a semiconductor substrate, in order to avoid discharge from a part of an adhesive flown out at the outer periphery of the substrate, wherein the adhesive is used to fix the substrate to a support during grinding, at least the substrate end or the adhesive is removed after grinding the semiconductor substrate and before forming the conductive film, so that a gap between the substrate end and the adhesive may have a predetermined size.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: October 7, 2014
    Assignee: PS4 Luxco S.a.r.l.
    Inventor: Seiya Fujii
  • Publication number: 20140287567
    Abstract: According to one embodiment, a first adhesive layer is formed on one major surface of a first substrate. The first substrate and a second substrate are adhered using a second adhesive layer that has thermosetting properties and covers the first adhesive layer, wherein a bonding strength between the second substrate is greater than a bonding strength between the second substrate and the first adhesive layer. The other major surface of the first substrate is polished, and the first substrate is thinned. A physical force is then applied to peripheral parts of the second adhesive layer, and a circular notched part is formed along the outer perimeter of the second adhesive layer to separate the first substrate and the second substrate at the interface between the first adhesive layer and the second adhesive layer.
    Type: Application
    Filed: August 30, 2013
    Publication date: September 25, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Eiji TAKANO
  • Patent number: 8841201
    Abstract: A method for fabricating a semiconductor device is disclosed. A first substrate is arranged over a second substrate. A wafer bonding process is performed on the semiconductor device. First regions of the device are enclosed by the bonding process. Second regions of the device remain exposed. One or more processes are performed on the exposed second regions, after performing the wafer bonding process. The one or more processes include a fill process that forms a fill material within the exposed second regions. An edge seal material is applied on the first and second substrates after performing the one or more processes.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: September 23, 2014
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yi-Chuan Teng, Jung-Huei Peng, Shang-Ying Tsai, Hsin-Ting Huang, Lin-Min Hung, Yao-Te Huang, Chin-Yi Cho
  • Patent number: 8841742
    Abstract: Methods of transferring a layer of semiconductor material from a first donor structure to a second structure include forming recesses in the donor structure, implanting ions into the donor structure to form a generally planar, inhomogeneous weakened zone therein, and providing material within the recesses. The first donor structure may be bonded to a second structure, and the first donor structure may be fractured along the generally planar weakened zone, leaving the layer of semiconductor material bonded to the second structure. Semiconductor devices may be fabricated by forming active device structures on the transferred layer of semiconductor material. Semiconductor structures are fabricated using the described methods.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: September 23, 2014
    Assignee: Soitec
    Inventors: Mariam Sadaka, Ionut Radu
  • Patent number: 8836033
    Abstract: Embodiments of a method and apparatus for removing metallic nanotubes without transferring CNTs from one substrate to another substrate provide two methods of transferring a thin layer of crystalline ST-cut quartz wafer to the surface of a carrier silicon wafer for subsequent CNT growth, without resorting to CNT transfer. In other words, embodiments of a method and apparatus allow CNTs to be grown on the same substrate that metallic nanotube removal is performed, therefore eliminating the costly and messy step of transferring CNTs from one substrate to another. This is achieved through a residual thin layer of crystalline ST-cut quartz layer on a silicon wafer. The ST-cut quartz wafer promotes aligned growth of CNTs, while the underlying silicon wafer allows backgate burnout.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: September 16, 2014
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Silai Krishnaswamy, Joseph Payne, Jeffrey Hartman
  • Patent number: 8835222
    Abstract: A method for producing a two-chip assembly includes: providing a wafer having a first thickness, which wafer has a front side and a back side, a first plurality of first chips being provided on the front side of the wafer; attaching a second plurality of second chips on the front side of the wafer, so that every first chip is joined in each instance to a second chip and forms a corresponding two-chip pair; forming a cohesive mold package on the front side of the wafer, so that the second chips are packaged; thinning the wafer from the back side to a second thickness which is less than the first thickness; forming vias from the back side to the second chips; and separating the two-chip pairs into corresponding two-chip assemblies.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: September 16, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Mathias Bruendel, Frieder Haag, Jens Frey, Rolf Speicher, Juergen Fritz, Lutz Rauscher
  • Patent number: 8835221
    Abstract: An integrated chip package structure and method of manufacturing the same is by adhering dies on a ceramic substrate and forming a thin-film circuit layer on top of the dies and the ceramic substrate. Wherein the thin-film circuit layer has an external circuitry, which is electrically connected to the metal pads of the dies, that extends to a region outside the active surface of the dies for fanning out the metal pads of the dies. Furthermore, a plurality of active devices and an internal circuitry is located on the active surface of the dies. Signal for the active devices are transmitted through the internal circuitry to the external circuitry and from the external circuitry through the internal circuitry back to other active devices. Moreover, the chip package structure allows multiple dies with different functions to be packaged into an integrated package and electrically connecting the dies by the external circuitry.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: September 16, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Jin-Yaun Lee, Mou-Shiung Lin, Ching-Cheng Huang
  • Publication number: 20140252555
    Abstract: According to one embodiment, a substrate for forming elements includes a substrate; an insulating film provided on the substrate; and a Ge layer or an SiGe layer bonded to the substrate via the insulating film. The insulating film is a laminated structure comprising a plurality of films including an oxide film, a high-dielectric constant insulating film, and a compound insulating film including a metal element and Ge.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 11, 2014
    Inventor: Keiji IKEDA
  • Patent number: 8828785
    Abstract: Techniques for producing a single-crystal phase change material and the incorporation of those techniques in an electronic device fabrication process flow are provided. In one aspect, a method of fabricating an electronic device is provided which includes the following steps. A single-crystal phase change material is formed on a first substrate. At least one first electrode in contact with a first side of the single-crystal phase change material is formed. The single-crystal phase change material and the at least one first electrode in contact with the first side of the single-crystal phase change material form a transfer structure on the first substrate. The transfer structure is transferred to a second substrate. At least one second electrode in contact with a second side of the single-crystal phase change material is formed. A single-crystal phase change material-containing structure and electronic device are also provided.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 9, 2014
    Assignee: International Business Machines Corporation
    Inventors: Guy Cohen, Simone Raoux
  • Patent number: 8830413
    Abstract: The present invention provides a simplifying method for a peeling process as well as peeling and transcribing to a large-size substrate uniformly. A feature of the present invention is to peel a first adhesive and to cure a second adhesive at the same time in a peeling process, thereby to simplify a manufacturing process. In addition, the present invention is to devise the timing of transcribing a peel-off layer in which up to an electrode of a semiconductor are formed to a predetermined substrate. In particular, a feature is that peeling is performed by using a pressure difference in the case that peeling is performed with a state in which plural semiconductor elements are formed on a large-size substrate.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: September 9, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Toru Takayama, Junya Maruyama, Yuugo Goto, Yumiko Ohno
  • Patent number: 8822306
    Abstract: According to an embodiment, a composite wafer includes a carrier substrate having a graphite layer and a monocrystalline semiconductor layer attached to the carrier substrate.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: September 2, 2014
    Assignee: Infineon Technologies AG
    Inventors: Rudolf Berger, Hermann Gruber, Wolfgang Lehnert, Guenther Ruhl, Raimund Foerg, Anton Mauder, Hans-Joachim Schulze, Karsten Kellermann, Michael Sommer, Christian Rottmair, Roland Rupp
  • Publication number: 20140242779
    Abstract: According to one embodiment, a semiconductor device manufacturing method includes: bonding a first wafer and a second wafer to each other, to form a stack; rubbing a film attached with a fill material in a thin-film shape into a gap located between a bevel of the first wafer and a bevel of the second wafer, to fill the gap with the fill material; and thinning the first wafer.
    Type: Application
    Filed: July 30, 2013
    Publication date: August 28, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenro NAKAMURA, Mitsuyoshi ENDO, Kazuyuki HIGASHI, Takashi SHIRONO
  • Patent number: 8815641
    Abstract: A method and structure for a semiconductor device including a thin nitride layer formed between a diamond SOI layer and device silicon layer to block diffusion of ions and improve lifetime of the device silicon.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: August 26, 2014
    Assignee: Soitec
    Inventors: Rick C. Jerome, Francois Hebert, Craig McLachlan, Kevin Hoopingarner
  • Patent number: 8815651
    Abstract: A method for manufacturing an electronic interconnect device is described, the method comprising: providing an electronic members each having one or more electrical contacts on a first member side thereof; providing a carrier having a carrier base and having sets of one or more electrically conductive projections on a surface of the carrier base; attaching the electronic members with the corresponding contacts thereof to the respective set of projections to thereby electrically connect the one or more electrical contacts of the respective chip with the corresponding one or more electrically conductive projections of the respective set; encapsulating exposed portions of the electronic member with an encapsulating material to form an encapsulation.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: August 26, 2014
    Assignee: Infineon Technologies AG
    Inventors: Edward Fuergut, Joachim Mahler
  • Patent number: 8809164
    Abstract: Methods for detecting the physical layout of an integrated circuit are provided. The methods of the present disclosure allow large area imaging of the circuit layout without requiring tedious sample preparation techniques. The imaging can be performed utilizing low-energy beam techniques such as scanning electron microscopy; however, more sophisticated imaging techniques can also be employed. In the methods of the present disclosure, spalling is used to remove a portion of a semiconductor layer including at least one semiconductor device formed thereon or therein from a base substrate. In some cases, a buried insulator layer that is located beneath a semiconductor layer including the at least one semiconductor device can be completely or partially removed. In some cases, the semiconductor layer including the at least one semiconductor device can be thinned. The methods improve the detection quality that the buried insulator layer and a thick semiconductor layer can reduce.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: August 19, 2014
    Assignee: International Business Machines Corporation
    Inventors: Stephen W. Bedell, Bahman Hekmatshoartabari, Ali Khakifirooz, John A. Ott, Ghavam G. Shahidi, Davood Shahrjerdi
  • Publication number: 20140225229
    Abstract: A group III nitride composite substrate includes a group III nitride film and a support substrate formed from a material different in chemical composition from the group III nitride film. The group III nitride film has a thickness of 10 ?m or more. A sheet resistance of a-group III-nitride-film-side main surface of the group III nitride composite substrate is 200 ?/sq or less. A method for manufacturing a group III nitride composite substrate includes the steps of bonding the group III nitride film and the support substrate to each other; and reducing the thickness of at least one of the group III nitride film and the support substrate bonded to each other. Accordingly, a group III nitride composite substrate of a low sheet resistance that is obtained with a high yield as well as a method for manufacturing the same are provided.
    Type: Application
    Filed: December 5, 2013
    Publication date: August 14, 2014
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihiro HACHIGO, Keiji ISHIBASHI, Naoki MATSUMOTO
  • Patent number: 8802542
    Abstract: The invention pertains to a combination of a substrate and a wafer, wherein the substrate and the wafer are arranged parallel to one another and bonded together with the aid of an adhesive layer situated between the substrate and the wafer, and wherein the adhesive is chosen such that its adhesive properties are neutralized or at least diminished when a predetermined temperature is exceeded. According to the invention, the adhesive layer is only applied annularly between the substrate and the wafer in the edge region of the wafer.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: August 12, 2014
    Inventor: Erich Thallner