With Subsequent Division Of Substrate Into Plural Individual Devices (epo) Patents (Class 257/E21.599)

  • Publication number: 20130059428
    Abstract: A wafer is divided by setting the focal point of a laser beam inside the wafer at positions corresponding to division lines, thereby forming modified layers inside the wafer along the division lines. Each modified layer has a thickness ranging from the vicinity of the front side of the wafer to the vicinity of the back side of the wafer. An etching gas or an etching liquid is supplied to the wafer to erode the modified layers, thereby dividing the wafer into individual devices. The modified layers are not crushed, so fine particles are not generated in dividing the wafer. Accordingly, fine particles do not stick to the surface of each device and cause a reduction in quality. Further, since the modified layers are removed by etching, it is possible to prevent a reduction in die strength of each device due to the remainder of the modified layers.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 7, 2013
    Applicant: DISCO CORPORATION
    Inventor: Kazuhisa ARAI
  • Publication number: 20130056866
    Abstract: Wafer-level package devices are described that include multiple die packaged into a single wafer-level package device. In an implementation, a wafer-level package device includes a semiconductor device having at least one electrical interconnection formed therein. At least one semiconductor package device is positioned over the first surface of the semiconductor device. The semiconductor package device includes one or more micro-solder bumps. The wafer-level package device further includes an encapsulation structure disposed over and supported by the semiconductor device for encapsulating the semiconductor package device(s). When the semiconductor package device is positioned over the semiconductor device, each micro-solder bump is connected to a respective electrical interconnection that is formed in the semiconductor device.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 7, 2013
    Applicant: Maxim Integrated Products, Inc.
    Inventors: Arkadii V. Samoilov, Tie Wang, Yi-Sheng Anthony Sun
  • Publication number: 20130056752
    Abstract: An edge region has a width of 5 mm. A valid region is surrounded by the edge region, and has an area greater than or equal to 100 cm2. At the valid region, a micropipe having a cross-sectional area exceeding 1 ?m2 is not present. The valid region includes a plurality of high-quality regions occupying 70% or more of the valid region. Each of the plurality of high-quality regions has a square shape, an area greater than or equal to 1 cm2, and a micropipe density less than or equal to 1 micropipe per 1 cm2.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 7, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shinsuke Fujiwara, Shin Harada
  • Publication number: 20130056865
    Abstract: A method of fabricating a three-dimensional integrated circuit comprises attaching a wafer to a carrier, mounting a plurality of semiconductor dies on top of the wafer to form a wafer stack. The method further comprises forming a molding compound layer on top of the wafer, attaching the wafer stack to a tape frame and dicing the wafer stack to separate the wafer stack into a plurality of individual packages.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 7, 2013
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jing-Cheng Lin, Weng-Jin Wu, Shih Ting Lin, Cheng-Lin Huang, Szu Wei Lu, Shin-Puu Jeng, Chen-Hua Yu
  • Publication number: 20130059418
    Abstract: A semiconductor package device, a semiconductor package structure, and fabrication methods thereof are provided, which mainly includes disposing a plurality of semiconductor chips on a wafer formed with TSVs (Through Silicon Vias) and electrically connecting the semiconductor chips to the TSVs; encapsulating the semiconductor chips with an encapsulant; and disposing a hard component on the encapsulant. The hard component ensures flatness of the wafer during a solder bump process and provides support to the wafer during a singulation process such that the wafer can firmly lie on a singulation carrier, thereby overcoming the drawbacks of the prior art, namely difficulty in mounting of solder bumps, and difficulty in cutting of the wafer.
    Type: Application
    Filed: November 2, 2012
    Publication date: March 7, 2013
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventor: SILICONWARE PRECISION INDUSTRIES CO., L
  • Patent number: 8389305
    Abstract: A method of forming ohmic contacts on a light emitting diode that features a surface treatment of a substrate includes exposing a surface of a p-type gallium nitride layer to an acid-containing solution and a buffered oxide etch process. A quantum well is formed in a gallium nitride substrate and a layer of p-type gallium nitride is deposited over the quantum well. The surface of the p-type gallium nitride is exposed to an acid-containing solution and then a buffered oxide etch process is performed to provide an etched surface. A metal stack including a layer of silver disposed between layers of platinum is then deposited.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: March 5, 2013
    Assignee: Soraa, Inc.
    Inventors: Andrew J. Felker, Nicholas Andrew Vickers
  • Patent number: 8389386
    Abstract: A manufacturing method for a stacked wafer configured by bonding a mother wafer having a plurality of first semiconductor device and a stacking wafer having a plurality of second semiconductor devices.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: March 5, 2013
    Assignee: Disco Corporation
    Inventors: Akihito Kawai, Koichi Kondo
  • Patent number: 8389312
    Abstract: A method of fabricating a group-III nitride semiconductor laser device includes: preparing a substrate of a hexagonal group-III nitride semiconductor, where the substrate has a semipolar primary surface; forming a substrate product having a laser structure, an anode electrode and a cathode electrode, where the laser structure includes the substrate and a semiconductor region, and where the semiconductor region is formed on the semipolar primary surface; scribing a first surface of the substrate product in part in a direction of the a-axis of the hexagonal group-III nitride semiconductor; and carrying out breakup of the substrate product by press against a second surface of the substrate product, to form another substrate product and a laser bar.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: March 5, 2013
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yusuke Yoshizumi, Shimpei Takagi, Takatoshi Ikegami, Masaki Ueno, Koji Katayama
  • Publication number: 20130049234
    Abstract: A method and apparatus for separating a substrate into individual dies and the resulting structure is provided. A modification layer, such as an amorphous layer, is formed within the substrate. A laser focused within the substrate may be used to create the modification layer. The modification layer creates a relatively weaker region that is more prone to cracking than the surrounding substrate material. As a result, the substrate may be pulled apart into separate sections, causing cracks the substrate along the modification layers. Dice or other components may be attached to the substrate before or after separation.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jing-Cheng Lin, Chih-Wei Wu, Szu Wei Lu, Shin-Puu Jeng, Chen-Hua Yu
  • Publication number: 20130049195
    Abstract: A method includes performing a laser grooving to remove a dielectric material in a wafer to form a trench, wherein the trench extends from a top surface of the wafer to stop at an intermediate level between the top surface and a bottom surface of the wafer. The trench is in a scribe line between two neighboring chips in the wafer. A polymer is filled into the trench and then cured. After the step of curing the polymer, a die saw is performed to separate the two neighboring chips, wherein a kerf line of the die saw cuts through a portion of the polymer filled in the trench.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 28, 2013
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Wei Wu, Szu Wei Lu, Jing-Cheng Lin, Shin-Puu Jeng, Chen-Hua Yu
  • Publication number: 20130049185
    Abstract: A semiconductor package is provided for carrying a sleeve member and a fan wheel axially coupled to the sleeve member so as to provide a heat dissipating function. The semiconductor package includes: a substrate; a coil module and at least an electronic component disposed on the substrate; and an encapsulant formed on the substrate for encapsulating the coil module and the electronic component so as to prevent the coil module and the electronic component from disturbing air flow generated by the fan wheel during operation, thereby avoiding generation of noises or vibrations.
    Type: Application
    Filed: March 23, 2012
    Publication date: February 28, 2013
    Applicant: AMTEK SEMICONDUCTORS CO., LTD.
    Inventor: Hsiang-Wei Tseng
  • Publication number: 20130049198
    Abstract: A method of manufacturing a semiconductor package structure is provided. A chip is provided. An active surface of the chip is disposed on a carrier. A molding compound is formed on the carrier with a metal layer disposed thereon. The metal layer has an upper and lower surface, multiple cavities formed on the upper surface and multiple protrusions formed on the lower surface and corresponding to the cavities. The protrusions are embedded in the molding compound. The metal layer is patterned to form multiple pads on a portion of the molding compound. The carrier and the molding compound are separated. Multiple through holes are formed on the molding compound exposing the protrusions. A redistribution layer is formed on the molding compound and the active surface of the chip. Multiple solder balls are formed on the redistribution layer. A portion of the solder balls are correspondingly disposed to the pads.
    Type: Application
    Filed: February 6, 2012
    Publication date: February 28, 2013
    Applicant: CHIPMOS TECHNOLOGIES INC.
    Inventors: Tsung-Jen Liao, Cheng-Tang Huang, Mei-Fang Peng
  • Publication number: 20130050228
    Abstract: This disclosure provides systems, methods and apparatus for glass packaging of integrated circuit (IC) and electromechanical systems (EMS) devices. In one aspect, fabricating a glass package includes joining a cover glass panel to a glass substrate panel, and singulating the joined panels to form individual glass packages, each including one or more encapsulated devices and one or more signal transmission pathways. In another aspect, a glass package may include a glass substrate, a cover glass and one or more devices encapsulated between the glass substrate and the cover glass.
    Type: Application
    Filed: August 30, 2011
    Publication date: February 28, 2013
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Kurt Edward Petersen, Ravindra V. Shenoy, Justin Phelps Black, David William Burns, Srinivasan Kodaganallur Ganapathi, Philip Jason Stephanou, Nicholas Ian Buchan
  • Publication number: 20130045570
    Abstract: A method of singulating a plurality of semiconductor dies includes providing a carrier substrate and joining a semiconductor substrate to the carrier substrate. The semiconductor substrate includes a plurality of devices. The method also includes forming a mask layer on the semiconductor substrate, exposing a predetermined portion of the mask layer to light, and processing the predetermined portion of the mask layer to form a predetermined mask pattern on the semiconductor substrate. The method further includes forming the plurality of semiconductor dies, each of the plurality of semiconductor dies being associated with the predetermined mask pattern and including one or more of the plurality of devices and separating the plurality of semiconductor dies from the carrier substrate.
    Type: Application
    Filed: February 17, 2012
    Publication date: February 21, 2013
    Applicant: Applied Materials, Inc.
    Inventors: Klaus Schuegraf, Seshadri Ramaswami, Michael R. Rice, Mohsen S. Salek, Claes H. Bjorkman
  • Publication number: 20130045585
    Abstract: The invention provides an adhesive sheet which can be stuck to a wafer at low temperatures of 100° C. or below, which is soft to the extent that it can be handled at room temperature, and which can be cut simultaneously with a wafer under usual cutting conditions; a dicing tape integrated type adhesive sheet formed by lamination of the adhesive sheet and a dicing tape; and a method of producing a semiconductor device using them. In order to achieve this object, the invention is characterized by specifying the breaking strength, breaking elongation, and elastic modulus of the adhesive sheet in particular numerical ranges.
    Type: Application
    Filed: October 24, 2012
    Publication date: February 21, 2013
    Inventors: Teiichi INADA, Michio MASHINO, Michio URUNO
  • Patent number: 8378252
    Abstract: A method and apparatus is presented for obtaining high resolution positional feedback from motion stages 52 in indexing systems 10 without incurring the costs associated with providing high resolution positional feedback from the entire range of motion by combining low resolution/low cost feedback devices 72 with high resolution/high cost feedback devices 74, 76, 78, 80, 82, 84, 86, 88.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: February 19, 2013
    Assignee: Electro Scientific Industries, Inc.
    Inventor: Mehmet Ermin Alpay
  • Publication number: 20130037966
    Abstract: A semiconductor device includes a semiconductor die having first and second opposing faces and an edge surface. The edge surface has an undercut under the first face. The second face of the semiconductor die is bonded to a bonding surface of a die support member, such as a thermally conductive flag of a lead frame, with a die attach material. A fillet of the bonding material is formed within the undercut.
    Type: Application
    Filed: June 13, 2012
    Publication date: February 14, 2013
    Applicant: FREESCALE SEMICONDUCTOR, INC
    Inventors: Shunan QIU, Guoliang Gong, Junhua Luo, Xuesong Xu
  • Publication number: 20130037935
    Abstract: The present invention relates to a package for semiconductor device and the fabrication method for integrally encapsulating a whole semiconductor chip within a molding compound. In the semicondcutor device package, bonding pads distributed on the top of the chip are redistributed into an array of redistributed bonding pads located in an dielectric layer by utilizing the redistribution technique. The electrodes or signal terminals on the top of the semiconductor chip are connected to an electrode metal segment on the bottom of the chip by conductive materials filled in through holes formed in a silicon substrate of a semiconductor wafer. Furthermore, the top molding portion and the bottom molding portion seal the semiconductor chip completely, thus providing optimum mechanical and electrical protections.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 14, 2013
    Inventors: Yan Xun Xue, Ping Huang, Yueh-Se Ho, Hamza Yilmaz, Jun Lu, Ming-Chen Lu
  • Publication number: 20130040426
    Abstract: A method for forming a sealing body without cracks in manufacture of a semiconductor device having an external terminal formed through the use of an electrolysis plating method. A front surface of a semiconductor wafer is placed over a front surface of a first support heated to a first temperature. An adhesive sheet is then bonded to a back surface of the semiconductor wafer, after which the semiconductor wafer is subjected to heat treatment at a second temperature higher than the first temperature. After the semiconductor wafer and the adhesive sheet are cut along cutting regions, a plurality of semiconductor chips each having an adhesive patch bonded thereto are obtained. A mother substrate is placed over a front surface of a second support heated to a third temperature and the semiconductor chips are fixed to an upper surface of the mother substrate via the adhesive patch.
    Type: Application
    Filed: July 26, 2012
    Publication date: February 14, 2013
    Applicant: Renesas Electronics Corporation
    Inventor: HIROAKI NARITA
  • Publication number: 20130037837
    Abstract: A package for a light source is disclosed. In particular, a Plastic Leaded Chip Carrier (PLCC) is described which provides many features offered by traditional surface mount technology lamps, but also has a decreased height, increased light output, and enables a smaller viewing angle as compared to traditional surface mount technology lamps.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 14, 2013
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Hooi Choo Kang, Keat Chuan Ng
  • Publication number: 20130037962
    Abstract: A method to provide a wafer level package with increasing contact pad area comprising the steps of forming a first packaging layer on wafer top surface, grinding the wafer back surface and etch through holes, depositing a metal to fill the through holes and covering wafer backside, cutting through the wafer from wafer backside forming a plurality of grooves separating each chip then depositing a second packaging layer filling the grooves and covering the wafer back metal, reducing the first packaging layer thickness to expose the second packaging layer filling the grooves and forming a plurality of contact pads overlaying the first packaging layer thereafter cutting through the second packaging layer in the grooves to form individual package.
    Type: Application
    Filed: March 23, 2012
    Publication date: February 14, 2013
    Inventor: Yan Xun Xue
  • Patent number: 8372694
    Abstract: A substrate is provided with electrical connection pads on a front face and on a rear face, the front pads and rear pads being selectively connected via a network passing through the substrate. A peripheral edge of the substrate is mounted on a rigid annular frame and the rearm face secured to a suction table. A layer of a dielectric sealant containing electrically conductive particles is deposited on the front face and front pads of the substrate. Integrated-circuit chips are positioned on the front face to flatten the layer of dielectric sealant, the included electrically conductive particles making electrical connection between pads of the integrated-circuit and the front pads of the substrate. The resulting assembly in then encapsulated in a block of encapsulating material positioned on top of the front face of the substrate. The block is then diced in order to obtain a plurality of semiconductor packages.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: February 12, 2013
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Julien Vittu
  • Publication number: 20130032701
    Abstract: A submount is used for disposing an illuminant element or a light-receiving element having an optical axis. The submount is disposed at a plane and has a main body. The main body includes a first surface and a second surface. The first surface is approximately parallel to the plane and far away from the plane. The second surface is approximately parallel to the plane and adjacent to the plane. A disposing part of the first surface is tilted with respect to the second surface at a predetermined angle. The illuminant element or the light-receiving element is disposed on the disposing part. The optical axis of the illuminant element or the light-receiving element is tiled with respect to a normal of the second surface at the predetermined angle.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 7, 2013
    Inventors: Chih-Cheng CHEN, Jin-Shan Pan
  • Publication number: 20130034934
    Abstract: A method for manufacturing a wafer level package is provided that enables suppressing the wearing of a cutter and extending the lifetime of the cutter, including forming insulating first resin over the top face of a substrate, which includes a groove for wiring to be formed; forming a film of first metal that is to serve as a portion of the wiring on the top face of the first resin using physical vapor deposition; forming a film of second metal that is to form a portion of the wiring on the top face of the first metal, with a lower hardness than the first metal; setting a cutter at a height corresponding to a place where the film of the first metal is not formed on a side face of the groove or the film thickness is low; and cutting at least the first resin by scanning the cutter.
    Type: Application
    Filed: March 12, 2012
    Publication date: February 7, 2013
    Applicant: SK Link Co., Ltd.
    Inventors: Koichi MEGURO, Kanji Otsuka
  • Publication number: 20130032946
    Abstract: A method of forming stacked die devices includes attaching first semiconductor die onto a wafer to form a reconstituted wafer, and then bonding second semiconductor die onto the first semiconductor die to form a plurality of singulated stacked die devices on the wafer. A support tape is attached to a bottomside of the second semiconductor die. A dicing tape is attached to the wafer. The wafer is laser irradiated before or after attachment of the dicing tape at intended dicing lanes that align with gaps between the first semiconductor die to mechanically weaken the wafer at the intended dicing lanes, but not cut through the wafer. The dicing tape is pulled to cleave the wafer into a plurality of singulated portions to form a plurality of singulated stacked die devices attached to the singulated wafer portions by the dicing tape. The support tape is removed prior to cleaving.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 7, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: JEFFREY ALAN WEST, MARGARET SIMMONS-MATTHEWS, RAYMUNDO M. CAMENFORTE
  • Publication number: 20130032905
    Abstract: In some examples, a semiconductor package can be configured to electrically couple to a printed circuit board. The semiconductor package can include: (a) a lid having one or more first electrically conductive leads; (b) a base coupled to the lid and having one or more second electrically conductive leads electrically coupled to the one or more first electrically conductive leads; (c) one or more first semiconductor devices mechanically coupled to the lid and electrically coupled to the one or more first electrically conductive leads; and (d) one or more first micro-electrical-mechanical system devices mechanically coupled to the lid and electrically coupled to the one or more first electrically conductive leads. At least one of the lid or the base can have at least one port hole. The one or more first electrically conductive leads can be configured to couple to the printed circuit board. Other embodiments are disclosed.
    Type: Application
    Filed: April 30, 2010
    Publication date: February 7, 2013
    Applicant: UBOTIC INTELLECTUAL PROPERTY CO. LTD.
    Inventors: Chi Kwong Lo, Lik Hang Wan, Ming Wa Tam
  • Publication number: 20130029432
    Abstract: Embodiments relate to IC current sensors fabricated using thin-wafer manufacturing technologies. Such technologies can include processing in which dicing before grinding (DBG) is utilized, which can improve reliability and minimize stress effects. While embodiments utilize face-up mounting, face-down mounting is made possible in other embodiments by via through-contacts. IC current sensor embodiments can present many advantages while minimizing drawbacks often associated with conventional IC current sensors.
    Type: Application
    Filed: September 25, 2012
    Publication date: January 31, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventor: INFINEON TECHNOLOGIES AG
  • Publication number: 20130026650
    Abstract: A semiconductor device is made up of an organic substrate; through vias which penetrate the organic substrate in its thickness direction; external electrodes and internal electrodes provided to the front and back faces of the organic substrate and electrically connected to the through vias; a semiconductor element mounted on one main surface of the organic substrate via a bonding layer, with an element circuit surface thereof facing upward; an insulating material layer for sealing the semiconductor element and a periphery thereof; a metal thin film wiring layer provided in the insulating material layer, with a part of this metal thin film wiring layer being exposed on an external surface; metal vias provided in the insulating material layer and electrically connected to the metal thin film wiring layer; and external electrodes formed on the metal thin film wiring layer.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 31, 2013
    Inventors: Osamu Yamagata, Akio Katsumata, Hiroshi Inoue, Shigenori Sawachi, Satoru Itakura, Yasuhiro Yamaji
  • Publication number: 20130029476
    Abstract: A dicing process is provided for cutting a wafer along a plurality of predetermined scribe lines into a plurality of dies that are releasably adhered to a release film. The dicing process includes: (a) disposing a wafer-breaking carrier on a supporting device, the wafer-breaking carrier having a chipping unit; (b) disposing the wafer above the supporting device such that the chipping unit is at a position corresponding to the scribe lines; and (c) adhering a release surface of the release film to the wafer by applying a force to the release film to contact the chipping unit of the wafer-breaking carrier with the wafer, such that the wafer is split along the scribe lines into the dies.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 31, 2013
    Applicant: LEXTAR ELECTRONICS CORP.
    Inventors: Chien-Sen WENG, Mong-Yeng Xing, Yu-Ching Chang, Wei-Chang Yu, Yao-Hui Lin
  • Patent number: 8361885
    Abstract: A method of fabricating group-III nitride semiconductor laser device includes: preparing a substrate comprising a hexagonal group-III nitride semiconductor and having a semipolar principal surface; forming a substrate product having a laser structure, an anode electrode, and a cathode electrode, where the laser structure includes a semiconductor region and the substrate, where the semiconductor region is formed on the semipolar principal surface; scribing a first surface of the substrate product in a direction of an a-axis of the hexagonal group-III nitride semiconductor to form first and second scribed grooves; and carrying out breakup of the substrate product by press against a second surface of the substrate product, to form another substrate product and a laser bar.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: January 29, 2013
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yusuke Yoshizumi, Shimpei Takagi, Takatoshi Ikegami, Masaki Ueno, Koji Katayama
  • Patent number: 8361828
    Abstract: A method and system for dicing semiconductor devices from semiconductor thin films. A semiconductor film, backed by a metal layer, is bonded by an adhesive layer to a flexible translucent substrate. Reference features define device boundaries. An ultraviolet laser beam is aligned to the reference features and cuts through the semiconductor film, the metal layer and partially into the adhesive layer, cutting a frontside street along a real or imaginary scribe line on the cutting path. An infrared laser beam is aligned to the trough of the frontside street from the back surface of the flexible substrate, or the scribe lines are mapped to the back surface of the flexible substrate. The infrared laser beam cuts through the flexible substrate and the majority of the thickness of the adhesive layer, cutting a backside street along the scribe line. The backside street overlaps or cuts through to the frontside street, thereby separating the semiconductor devices.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: January 29, 2013
    Assignee: Alta Devices, Inc.
    Inventors: Daniel G. Patterson, Laila Mattos, Gang He
  • Patent number: 8361819
    Abstract: Methods of fabricating of a light-emitting device are provided, the methods include forming a plurality of light-emitting units on a substrate, measuring light characteristics of the plurality of light-emitting units, respectively, depositing a phosphor layer on the plurality of light-emitting units using a printing method, and cutting the substrate to separate the plurality of light-emitting units into unit by unit. The phosphor layer is adjustably deposited according to the measured light characteristics of the plurality of light-emitting units.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: January 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yu-Sik Kim
  • Publication number: 20130020594
    Abstract: A light-emitting device includes a semiconductor layer, a light-emitting stack structure formed on a first surface of the semiconductor layer, and a plurality of inverted pyramid structures formed on a second surface of the semiconductor layer opposite to the first surface. Each of the inverted pyramid structures has a sectional area increasing as each of the inverted pyramid structures is more extended in a vertical direction from the second surface.
    Type: Application
    Filed: March 31, 2011
    Publication date: January 24, 2013
    Applicant: CSSOLUTION CO., LTD.
    Inventors: Hyung-Soo Ahn, Min Yang, Hongju Ha
  • Patent number: 8357590
    Abstract: Silicon semiconductor wafers are produced by: pulling a single crystal with a conical section and an adjoining cylindrical section having a diameter ?450 mm and a length of ?800 mm from a melt in a crucible, wherein in pulling the transition from the conical section to the cylindrical section, the pulling rate is at least 1.8 times higher than the average pulling rate during the pulling of the cylindrical section; cooling the growing single crystal with a cooling power of at least 20 kW; feeding heat from the side wall of the crucible to the single crystal, wherein a gap having a height of ?70 mm is present between a heat shield surrounding the single crystal and the melt surface.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: January 22, 2013
    Assignee: Siltronic AG
    Inventors: Georg Raming, Walter Heuwieser, Andreas Sattler, Alfred Miller
  • Patent number: 8357591
    Abstract: A method of processing a wafer includes establishing a fine of symmetry defining left and right die areas on a front side of the wafer and left and right die areas on a back side. A first mask is used to form a first interconnection layer on the left and right die areas comprising a first portion on the left die area and second portion different than the first portion on the right die area. A second mask is used to form a second interconnection layer on the left and right die areas comprising a third portion on the left die area and fourth portion different than the third portion on the right die area. The first mask is reused to form a third interconnection layer on the left and right die areas on a back side, and the second mask to form a fourth interconnection layer on the left and right die areas on a back side.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: January 22, 2013
    Assignee: Harris Corporation
    Inventors: Thomas Reed, David Herndon
  • Patent number: 8357987
    Abstract: The invention is related to a chip package including: a semiconductor substrate having at least one bonding pad region and at least one device region, wherein the semiconductor substrate includes a plurality of heavily doped regions in the bonding pad region, and two of the heavily doped regions are insulatively isolated; a plurality of conductive pad structures disposed over the bonding pad region; at least one opening disposed at a sidewall of the chip package to expose the heavily doped regions; and a conductive pattern disposed in the opening to electrically contact with the heavily doped region.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: January 22, 2013
    Inventor: Chien-Hung Liu
  • Publication number: 20130015582
    Abstract: A circuit board (1) exhibits an average coefficient of thermal expansion (A) of the first insulating layer (21) in the direction along the substrate surface in a temperature range from 25 degrees C. to its glass transition point of equal to or higher than 3 ppm/degrees C. and equal to or lower than 30 ppm/degrees C. Further, an average coefficient of thermal expansion (B) of the second insulating layer (23) in the direction along the substrate surface in a temperature range from 25 degrees C. to its glass transition point is equivalent to an average coefficient of thermal expansion (C) of the third insulating layer (25) in the direction along the substrate surface in a temperature range from 25 degrees C. to its glass transition point. (B) and (C) are larger than (A), and a difference between (A) and (B) and a difference between (A) and (C) are equal to or higher than 5 ppm/degrees C. and equal to or lower than 35 ppm/degrees C.
    Type: Application
    Filed: February 24, 2011
    Publication date: January 17, 2013
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Masayoshi Kondo, Natsuki Makino, Daisuke Fujiwara, Yuka Ito
  • Publication number: 20130017635
    Abstract: A method of forming ohmic contacts on a light emitting diode that features a surface treatment of a substrate includes exposing a surface of a p-type gallium nitride layer to an acid-containing solution and a buffered oxide etch process. A quantum well is formed in a gallium nitride substrate and a layer of p-type gallium nitride is deposited over the quantum well. The surface of the p-type gallium nitride is exposed to an acid-containing solution and then a buffered oxide etch process is performed to provide an etched surface. A metal stack including a layer of silver disposed between layers of platinum is then deposited.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 17, 2013
    Applicant: Sorra, Inc.
    Inventors: Andrew J. Felker, Nicholas Andrew Vickers
  • Publication number: 20130017671
    Abstract: A method for manufacturing a semiconductor device includes the steps of: preparing a substrate having a region that at least includes one main surface thereof and that is made of single-crystal silicon carbide; forming an active layer on the one main surface; grinding a region including the other main surface of the substrate opposite to the one main surface; removing a damaged layer formed in the step of grinding the region including the other main surface; and forming a backside electrode in contact with the main surface exposed by the removal of the damaged layer. The one main surface has an off angle of not less than 50° and not more than 65° relative to a {0001} plane.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 17, 2013
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Hiroyuki KITABAYASHI, Taku HORII
  • Publication number: 20130017668
    Abstract: Methods of dicing semiconductor wafers, each wafer having a plurality of integrated circuits, are described. A method includes forming a mask above the semiconductor wafer. The mask is composed of a layer covering and protecting the integrated circuits. The mask is patterned with a split-beam laser scribing process to provide a patterned mask with gaps. The patterning exposes regions of the semiconductor wafer between the integrated circuits. The semiconductor wafer is then etched through the gaps in the patterned mask to singulate the integrated circuits.
    Type: Application
    Filed: July 11, 2011
    Publication date: January 17, 2013
    Inventors: Wei-Sheng Lei, Brad Eaton, Madhava Rao Yalamanchili, Saravjeet Singh, Ajay Kumar, Aparna Iyer
  • Publication number: 20130017669
    Abstract: A method to prevent contamination of the principal surface side in a process of grinding the back surface side of a semiconductor wafer. At an intersection of a scribe region of a semiconductor wafer whose back surface side is to be ground, a plurality of insulating layers is laminated over the principal surface in the same manner as an insulating layer constituting a wiring layer laminated over a device region. Moreover, in the same layer as an uppermost wiring disposed at the uppermost layer among a plurality of the wiring layers formed for a device region, a metal pattern is formed. Furthermore, a second insulating layer covering the uppermost wiring is also formed over the metal pattern so as to cover the same.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 17, 2013
    Inventors: Shoetsu Kogawa, Satoru Nakayama, Seigo Kamata, Shigemitsu Seito
  • Publication number: 20130017650
    Abstract: A coating for a microelectronic device comprises a polymer film (131) containing a filler material (232). The polymer film has a thermal conductivity greater than 3 W/m·K and a thickness (133) that does not exceed 10 micrometers. The polymer film may be combined with a dicing tape (310) to form a treatment (300) that simplifies a manufacturing process for a microelectronic package (100) and may be used in order to manage a thermal profile of the microelectronic device.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 17, 2013
    Inventors: Dingying Xu, Leonel R. Arana, Nachiket R. Raravikar, Mohit Mamodia, Rajasekaran Swaminathan, Rahul Manepalli
  • Publication number: 20130012000
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro FUJII, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Publication number: 20130009316
    Abstract: Methods and apparatus for performing dicing of die on wafer interposers. Methods are disclosed that include receiving an interposer assembly including one or more integrated circuit dies mounted on a die side of an interposer substrate and having scribe areas defined in spaces between the integrated circuit dies, the interposer having an opposite side for receiving external connectors; mounting the die side of the interposer assembly to a tape assembly, the tape assembly comprising an adhesive tape and preformed spacers disposed between and filling gaps between the integrated circuit dies; and sawing the interposer assembly by cutting the opposite side of the interposer in the scribe areas to make cuts through the interposer, the cuts separating the interposer into one or more die on wafer assemblies. Apparatuses are disclosed for use with the methods.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chung Yu Wang, Kung-Chen Yeh, Chih-Wei Wu, Szu Wei Lu, Jing-Cheng Lin
  • Publication number: 20130009311
    Abstract: A semiconductor package includes: a first encapsulant having tapered through holes each having a wide top and a narrow bottom; tapered electrical contacts disposed in the tapered through holes; circuits disposed on a top surface of the first encapsulant and each having one end connecting one of the electrical contacts and the other end having a bonding pad disposed thereon such that the bonding pads are circumferentially arranged to define a die attach area on the top surface of the first encapsulant. As such, a semiconductor chip can be disposed on the top surface of the first encapsulant in the die attach area and electrically connected to the bonding pads through conductive elements, and further a second encapsulant encapsulates the semiconductor chip, the conductive elements, the circuits and the first encapsulant so as to prevent falling off of the electrical contacts and reduce the length of the conductive elements.
    Type: Application
    Filed: December 1, 2011
    Publication date: January 10, 2013
    Applicant: Siliconware Precision Industries Co., Ltd.
    Inventors: Pang-Chun Lin, Yueh-Ying Tsai, Yong-Liang Chen
  • Publication number: 20130011998
    Abstract: A sheet for forming a resin film for a chip, with which a semiconductor device is provided with a gettering function, is obtained without performing special treatment to a semiconductor wafer and the chip. The sheet has a release sheet, and a resin film-forming layer, which is formed on the releasing face of the release sheet, and the resin film-forming layer contains a binder polymer component, a curing component, and a gettering agent.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 10, 2013
    Applicant: LINTEC CORPORATION
    Inventors: Tomonori Shinoda, Yoji Wakayama
  • Publication number: 20130011999
    Abstract: A method for preparing a semiconductor wafer into individual semiconductor dies uses both a dicing before grinding step and/or via hole micro-fabrication step, and an adhesive coating step.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 10, 2013
    Applicant: HENKEL CORPORATION
    Inventors: Hwang Kyu Yun, Jeffrey Leon, Raj Peddi, YounSang Kim
  • Publication number: 20130011969
    Abstract: The disclosure provides a method for fabricating the flexible electronic devices, including: providing a first rigid carrier substrate and a second rigid carrier substrate, wherein at least one flexible electronic device is formed between the first rigid carrier substrate and the second rigid carrier substrate, and a plurality of first de-bonding areas, a first flexible substrate, the flexible electronic device, a second flexible substrate, a plurality of second de-bonding areas and the second rigid carrier substrate are formed on the first rigid carrier substrate; performing a first cutting step to cut through the first de-bonding areas; separating the first rigid carrier substrate from the first de-bonding areas; removing the first rigid carrier substrate from the first de-bonding areas; and performing a second cutting step to cut through the second de-bonding areas; separating and removing the second rigid carrier substrate from the second de-bonding areas.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 10, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kuang-Jung CHEN, Isaac Wing-Tak CHAN
  • Patent number: 8349657
    Abstract: A semiconductor wafer contains a plurality of semiconductor die each having a peripheral area around the die. A first insulating layer is formed over the die. A recessed region with angled sidewall is formed in the peripheral area. A first conductive layer is formed over the first insulating layer outside the recessed region and further into the recessed region. A conductive pillar is formed over the first conductive layer within the recessed region. A second insulating layer is formed over the first insulating layer, conductive pillar, and first conductive layer such that the conductive pillar is exposed from the second insulating layer. A dicing channel partially through the peripheral area. The semiconductor wafer undergoes backgrinding to the dicing channel to singulate the semiconductor wafer and separate the semiconductor die. The semiconductor die can be disposed in a semiconductor package with other components and electrically interconnected through the conductive pillar.
    Type: Grant
    Filed: March 18, 2012
    Date of Patent: January 8, 2013
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Byung Tai Do, Reza A. Pagaila, Linda Pei Ei Chua
  • Publication number: 20130005091
    Abstract: A package body (1) with an upper side (2), with an underside (22), opposite from the upper side (2), and with a side surface, which connects the upper side (2) and the underside (22) and is provided as a mounting surface (19), the package body (1) having a plurality of layers (8) which contain a ceramic material, and a main direction of extent of the layers (23, 24, 25) running obliquely in relation to the mounting surface (19). Furthermore, a method for producing a package body (1) is provided.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 3, 2013
    Inventors: Georg BOGNER, Karlheinz Arndt