Lead Frames Or Other Flat Leads (epo) Patents (Class 257/E23.031)

  • Publication number: 20130341780
    Abstract: A chip arrangement is provided. The chip arrangement including: a chip including at least one electrically conductive contact; a passivation material formed over the at least one electrically conductive contact; an encapsulation material formed over the passivation material; one or more holes formed through the encapsulation material and the passivation material, wherein the passivation material at least partially surrounds the one or more holes; and electrically conductive material provided within the one or more holes, wherein the electrically conductive material is electrically connected to the at least one electrically conductive contact.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 26, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Thorsten Scharf, Boris Plikat, Henrik Ewe, Anton Prueckl, Stefan Landau
  • Publication number: 20130334674
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a die attach pad integrally connected to a connector portion and a lead; attaching an integrated circuit die to the die attach pad; connecting an internal interconnect to the integrated circuit die and the lead; forming an encapsulation over the integrated circuit die; removing the connector portion to separate the die attach pad and the lead; and forming an isolation cover between the die attach pad and the lead.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Inventor: Zheng Zheng
  • Publication number: 20130334673
    Abstract: Power module semiconductor packages that contain a flexible circuit board and methods for making such packages are described. The semiconductor package contain a flexible circuit board, a conductive film on a first portion of the upper surface of the flexible circuit board, a land pad on a second portion of the upper surface of the flexible circuit board, a heat sink on a portion of the bottom surface of the flexible circuit board, a passive component, a discrete device, or an IC device connected to a portion of the conductive film, and a lead of a lead frame connected to the land pad. These packages can have a high degree of design flexibility of the layout of the package and simpler routing designs, reducing the time to design the packages and reducing the costs of the packages. Other embodiments are also described.
    Type: Application
    Filed: June 13, 2012
    Publication date: December 19, 2013
    Inventor: Duane A. Hughes
  • Publication number: 20130334677
    Abstract: In accordance with an embodiment of the present invention, a semiconductor module includes a first semiconductor device having a first plurality of leads including a first gate/base lead, a first drain/collector lead, and a first source/emitter lead. The module further includes a second semiconductor device and a circuit board. The second semiconductor device has a second plurality of leads including a second gate/base lead, a second drain/collector lead, and a second source/emitter lead. The circuit board has a plurality of mounting holes, wherein each of the first plurality of leads and the second plurality of leads is mounted into a respective one of the plurality of mounting holes. At the plurality of mounting holes, a first distance from the first gate/base lead to the second gate/base lead is different from a second distance from the first source/emitter lead to the second source/emitter lead.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Applicant: Infineon Technologies AG
    Inventors: Ralf Otremba, Davide Chiola, Erich Griebl, Fabio Brucchi
  • Publication number: 20130334671
    Abstract: A semiconductor package includes a lead frame, at least one chip and a molding compound. The lead frame comprises a plurality of leads, each lead comprises a first end portion and at least one coupling protrusion, wherein the first end portion comprises a first upper surface, the coupling protrusion comprises a ring surface and is integrally formed as one piece with the first upper surface. The chip disposed on top of the leads comprises a plurality of bumps and a plurality of solders, the coupling protrusions embed into the solders to make the ring surfaces of the coupling protrusions cladded with the solders. The solders cover the first upper surfaces. The chip and the leads are cladded with the molding compound.
    Type: Application
    Filed: September 13, 2012
    Publication date: December 19, 2013
    Applicant: CHIPBOND TECHNOLOGY CORPORATION
    Inventors: Chih-Ming Kuo, Shih-Chieh Chang, Chih-Hsien Ni, Chin-Tang Hsieh, Chia-Jung Tu, Lung-Hua Ho
  • Patent number: 8610237
    Abstract: A semiconductor apparatus includes a semiconductor chip, a lead frame that has a first surface having the semiconductor chip mounted thereover and a second surface opposite to the first surface, a bonding wire that couples the semiconductor chip and the lead frame, and a high dielectric constant layer that is disposed over a surface of the lead frame opposite to a surface having the semiconductor chip mounted thereover and that has a relative permittivity of 5 or more. The lead frame includes a source electrode lead coupled to the source of a semiconductor device formed over the semiconductor chip and a source-wire junction at which the source electrode lead and the bonding wire are coupled together. The high dielectric layer is disposed in a region including at least a position corresponding to the source-wire junction over the second surface of the lead frame.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: December 17, 2013
    Assignee: Renesas Electronics Corporation
    Inventor: Naoki Sakura
  • Publication number: 20130328179
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a package substrate having a warpage-compensation zone with a substrate-interior layer exposed from a top substrate-cover, and the warpage-compensation zone having contiguous exposed portion of the substrate-interior layer over corner portions of the package substrate; connecting an integrated circuit die to the package substrate with an internal interconnect; and forming an encapsulation over the integrated circuit die, with the encapsulation directly on the substrate-interior layer in the warpage-compensation zone.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 12, 2013
    Inventors: MinJung Kim, DaeSik Choi, MinWook Yu, YiSu Park
  • Publication number: 20130320515
    Abstract: A packaged semiconductor device may include a termination surface having terminations configured as leadless interconnects to be surface mounted to a printed circuit board. A first flange has a first surface and a second surface. The first surface provides a first one of the terminations, and the second surface is opposite to the first surface. A second flange also has a first surface and a second surface, with the first surface providing a second one of the terminations, and the second surface is opposite to the first surface. A die is mounted to the second surface of the first flange with a material having a melting point in excess of 240° C. An electrical interconnect extends between the die and the second surface of the second flange opposite the termination surface, such that the electrical interconnect, first flange and second flange are substantially housed within a body.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Lakshminarayan Viswanathan, Lakshmi N. Ramanathan, Audel A. Sanchez, Fernando A. Santos
  • Patent number: 8592967
    Abstract: A semiconductor apparatus comprising an integrated semiconductor circuit device having pluralities of electrode pads, pluralities of first external terminals connected to the electrode pads of the integrated semiconductor circuit device, an inductor disposed in a region surrounded by the first external terminals, and a resin portion sealing them, the integrated semiconductor circuit device being arranged on an upper surface of the inductor, and the inductor being exposed from a lower surface of the resin portion together with the first external terminals.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: November 26, 2013
    Assignee: Hitachi Metals, Ltd.
    Inventor: Tohru Umeno
  • Patent number: 8592944
    Abstract: An electronic device is provided with: a first electronic circuit, integrated in a first die; a second electronic circuit, integrated in a second die; and a galvanic isolator element, designed to insulate galvanically, and to enable transfer of signals between, the first electronic circuit and the second electronic circuit. The galvanic isolator element has: a transformer substrate, distinct from the first die and from the second die; and a galvanic-insulation transformer formed by a first inductive element, integrated in the first die, and by a second inductive element, integrated in the transformer substrate and so arranged as to be magnetically coupled to the first inductive element.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 26, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventors: Antonello Santangelo, SantoAlessandro Smerzi
  • Patent number: 8592962
    Abstract: A Quad Flat No Leads (QFN) package includes a lead frame, a chip, an encapsulant, and a protective layer. The lead frame includes a plurality of leads. Each of the leads has a lower surface that is divided into a contact area and a non-contact area. The chip is configured on and electrically connected to the lead frame. The encapsulant encapsulates the chip and the leads and fills spaces between the leads. The contact areas and the non-contact areas of the leads are exposed by the encapsulant. The protective layer covers the non-contact areas of the leads.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: November 26, 2013
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Kuang-Hsiung Chen, Sheng-Ming Wang, Hsiang-Ming Feng, Yu-Ying Lee, Mei-Lin Hsieh
  • Patent number: 8587101
    Abstract: Some exemplary embodiments of a multi-chip module (MCM) power quad flat no-lead (PQFN) semiconductor package utilizing a leadframe for electrical interconnections have been disclosed. One exemplary embodiment comprises a PQFN semiconductor package comprising a leadframe, a driver integrated circuit (IC) coupled to the leadframe, a plurality of vertical conduction power devices coupled to the leadframe, and a plurality of wirebonds providing electrical interconnects, including at least one wirebond from a top surface electrode of one of the plurality of vertical conduction power devices to a portion of the leadframe, wherein the portion of the leadframe is electrically connected to a bottom surface electrode of another of the plurality of vertical conduction power devices. In this manner, efficient multi-chip circuit interconnections can be provided in a PQFN package using low cost leadframes.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: November 19, 2013
    Assignee: International Rectifier Corporation
    Inventors: Dean Fernando, Roel Barbosa
  • Patent number: 8581375
    Abstract: A heat spreader frame is provided including: heat spreaders having upper surfaces; a peripheral frame surrounding the heat spreaders; spreaders, the peripheral frame having stand-off legs; tie bars having upper surfaces and a pin identifier at an end portion of the tie bars, the heat spreaders connected to one another and to the peripheral frame by the tie bars, the width of the stand-off legs wider than widths of the tie bars; at least portions of the upper surfaces of the tie bars being thinned to reduce heights of the tie bars; the upper surfaces of the heat spreader in an elevated position supported by the peripheral frame; and the heat spreaders and the tie bars covered by an package molding compound exposing the upper surface of the heat spreaders and one surface of the pin identifier coplanar to the upper surfaces of the heat spreaders.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: November 12, 2013
    Assignee: Stats Chippac Ltd.
    Inventors: Kambhampati Ramakrishna, Diane Sahakian, Il Kwon Shim
  • Patent number: 8581378
    Abstract: Terminals (2b, 2c) are divided into two along a common boundary, coatings (10, 11) most suitable for two conductive bonding materials (5, 6) to be used are exposed on the terminals (2b, 2c), the most suitable one of the coatings (10, 11) is selected, and the corresponding conductive bonding material (5, 6) is bonded onto the coating. Thus it is possible to improve the reliability of bonding and easily reduce a bonding resistance while suppressing a decrease in the reliability of a semiconductor element 3.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: November 12, 2013
    Assignee: Panasonic Corporation
    Inventors: Toshiyuki Yokoe, Chie Fujioka, Daichi Kumano
  • Publication number: 20130292811
    Abstract: A metal leadframe strip (500) for semiconductor devices is described. The leadframe strip has a plurality of sites (510) for assembling semiconductor chips. The sites alternate with zones (520) for connecting the leadframe to molding compound runners. The sites (510) have mechanically rough and optically matte surfaces (511, 512). The zones (520) have at least portions with mechanically flattened and optically shiny metal surfaces (521, 522). The flattened surface portions transition into the rough surface portions by a step.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 7, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Donald C. Abbott
  • Patent number: 8571229
    Abstract: A semiconductor device includes at least a die carried by a substrate, a plurality of bond pads disposed on the die, a plurality of conductive components, and a plurality of bond wires respectively connected between the plurality of bond pads and the plurality of conductive components. The plurality of bond pads respectively correspond to a plurality of signals, and include a first bond pad configured for transmitting/receiving a first signal and a second bond pad configured for transmitting/receiving a second signal. The plurality of conductive components include a first conductive component and a second conductive component. The first conductive component is bond-wired to the first bond pad, and the second conductive component is bond-wired to the second bond pad. The first conductive component and the second conductive component are separated by at least a third conductive component of the plurality of conductive components, and the first signal is asserted when the second signal is asserted.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: October 29, 2013
    Assignee: Mediatek Inc.
    Inventors: Chien-Sheng Chao, Tse-Chi Lin, Yin-Chao Huang
  • Publication number: 20130277813
    Abstract: Embodiments provide a method of forming a chip package. The method may include attaching at least one chip on a carrier, the chip including a plurality of chip pads on a surface of the chip opposite to the carrier; depositing a first adhesion layer on the carrier and on the chip pads of the chip, the first adhesion layer including tin or indium; depositing a second adhesion layer on the first adhesion layer, the second adhesion layer including a silane organic material; and depositing a lamination layer or an encapsulation layer on the second adhesion layer and the chip.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 24, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Holger Torwesten, Manfred Mengel, Stefan Schmid, Soon Lock Goh, Swee Kah Lee
  • Patent number: 8558363
    Abstract: A lead frame substrate, includes: a metal plate having first and second surfaces; a semiconductor element mounting section, semiconductor element electrode connection terminals, and a first outer frame section formed on the first surface; external connection terminals formed on the second surface and electrically connected with the semiconductor element electrode connection terminals; a second outer frame section formed on the second surface; and a resin layer formed on a gap between the first outer frame and the second outer frame. Each external connection terminal buried in the resin layer has at least one projection formed on a side surface thereof throughout a side lower portion of the first surface.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: October 15, 2013
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Takehito Tsukamoto, Susumu Maniwa, Junko Toda, Yasuhiro Sakai
  • Patent number: 8558357
    Abstract: An image sensor package having at least one chip supporting bar secured to a top surface of an image sensor chip. The thickness of the chip supporting bar is absorbed within a vertical dimension of wire loops that connect bonding pads to leads so that the chip supporting bar does not contribute to the thickness of the image sensor package. An exposed back surface of the image sensor chip enhances thermal dissipation.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: October 15, 2013
    Assignee: Macronix International Co., Ltd.
    Inventors: Chen Jung Tsai, Chih-Wen Lin
  • Patent number: 8557638
    Abstract: A method of manufacture of an integrated circuit packaging system includes: forming a peripheral lead having a peripheral lead bottom side, a peripheral lead top side, a peripheral lead non-horizontal side, a peripheral lead horizontal ridge, and a peripheral lead conductive plate, the peripheral lead horizontal ridge protruding from the peripheral lead non-horizontal side; forming a first top distribution layer on the peripheral lead top side, the first top distribution layer having a first top terminal; connecting an integrated circuit to the first top distribution layer, the integrated circuit having a central portion directly over a plurality of the first top terminal; and applying an insulation layer directly on a bottom extent of the first top distribution layer and a peripheral lead ridge lower side of the peripheral lead horizontal ridge.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: October 15, 2013
    Assignee: Stats Chippac Ltd.
    Inventors: Byung Tai Do, Arnel Senosa Trasporto, Linda Pei Ee Chua
  • Patent number: 8558358
    Abstract: A lead frame including rails, section bars, and lead frame cells. The rails are respectively arranged at edges of the lead frame extending in a first direction. The section bars extend between the rails in a second direction and are orthogonal to the rails. The lead frame cells are aligned along the section bars. At least one of the section bars includes a rib extending in the second direction and formed through a half blanking process.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: October 15, 2013
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventor: Naoki Yamabe
  • Publication number: 20130264692
    Abstract: An integrated circuit package includes an electronic sensor protected by a lid structure. The electronic sensor includes a transducer placed on a backside surface of a lead frame assembly. The lid structure is placed over the transducer and is attached to the lead frame assembly on the backside surface. The lid can define an air cavity around the transducer, such that mold compound, gel, or other protective chemical material is not placed in contact with the transducer. The transducer is therefore protected without a chemical protectant, lowering the cost of the integrated circuit package and maintaining the sensitivity and performance of the transducer.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 10, 2013
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Stephen R. Hooper, William C. Stermer, JR.
  • Patent number: 8551820
    Abstract: In accordance with the present invention, there is provided a routable substrate that may be used, for example, in relation to the manufacture of Dual and Quad Flat No-Lead (DFN/QFN) style semiconductor packages as a substrate or interposer of such packages. The method of fabricating the substrate effectively removes metal from the saw streets and provides a more stable surface structure for wire bonding. The substrate fabrication method also utilizes existing etching techniques which are implemented in a prescribed sequence to achieve no metal in the saw streets and to completely electrically isolated features. Further, the substrate fabrication method includes a molding step intended to replace pressure sensitive adhesive tapes.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: October 8, 2013
    Assignee: Amkor Technology, Inc.
    Inventors: Donald Craig Foster, Ronald Patrick Huemoeller
  • Publication number: 20130256857
    Abstract: In one embodiment, a method of forming a semiconductor package comprises providing a first die having contact regions on a top surface but not on an opposite bottom surface. A dielectric liner layer is deposited under the bottom surface of the first die. The first die is attached with the deposited dielectric liner layer to a die paddle of a substrate.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Applicant: Infineon Technologies AG
    Inventors: Hermann Gruber, Joachim Mahler, Uwe Hoeckele, Anton Prueckl, Thomas Fischer, Matthias Schmidt
  • Publication number: 20130256855
    Abstract: A chip arrangement is provided, the chip arrangement including: a first chip carrier; a second chip carrier; a first chip electrically connected to the first chip carrier; a second chip disposed over the first chip carrier and electrically insulated from the first chip carrier; and a third chip electrically connected to the second chip carrier; wherein at least one of the first chip and the second chip is electrically connected to the third chip.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Joachim Mahler, Ralf Wombacher, Anton Prueckl
  • Publication number: 20130256856
    Abstract: An electronic device includes a first chip carrier and a second chip carrier isolated from the first chip carrier. A first power semiconductor chip is mounted on and electrically connected to the first chip carrier. A second power semiconductor chip is mounted on and electrically connected to the second chip carrier. An electrically insulating material is configured to at least partially surround the first power semiconductor chip and the second power semiconductor chip. An electrical interconnect is configured to electrically connect the first power semiconductor chip to the second power semiconductor chip, wherein the electrical interconnect has at least one of a contact clip and a galvanically deposited conductor.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Applicant: Infineon Technologies AG
    Inventors: Joachim Mahler, Thomas Bemmerl, Anton Prueckl
  • Publication number: 20130249066
    Abstract: Embodiments of the invention include a lead-free solder interconnect structure and methods for making a lead-free interconnect structure. The structure includes a semiconductor substrate having a last metal layer, a copper pedestal attached to the last metal layer, a barrier layer attached to the copper pedestal, a barrier protection layer attached to the barrier layer, and a lead-free solder layer contacting at least one side of the copper pedestal.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: CHARLES L. ARVIN, KENNETH BIRD, CHARLES C. GOLDSMITH, SUNG K. KANG, MINHUA LU, CLARE JOHANNA MCCARTHY, ERIC DANIEL PERFECTO, SRINIVASA S.N. REDDY, KRYSTYNA WALERIA SEMKOW, THOMAS ANTHONY WASSICK
  • Publication number: 20130249067
    Abstract: In one embodiment, a semiconductor package includes a clip frame with a first clip having a first support structure, a first lever, and a first contact portion, which is disposed on a front side of the semiconductor package. The first support structure is adjacent an opposite back side of the semiconductor package. The first lever joins the first contact portion and the first support structure. A first die is disposed over the first support structure of the first clip. The first die has a first contact pad on the front side of the semiconductor package. An encapsulant material surrounds the first die and the first clip.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 26, 2013
    Applicant: Infineon Technologies AG
    Inventors: Melissa Mei Ching Ng, Mei Chin Ng, Peng Soon Lim
  • Publication number: 20130249070
    Abstract: A semiconductor package structure comprises a lead frame, at least one chip, a molding compound and an anti-conduction film. The lead frame comprises a plurality of leads, each of the leads comprises a first end portion and a second end portion, wherein the first end portion comprises a first upper surface and a first lower surface, and the second end portion comprises a second upper surface and a second lower surface. The chip comprises a plurality of bumps electrically connected with the lead frame. The chip and the leads are covered with the molding compound. The first lower surface of each of the first end portions and the second lower surface of each of the second end portions are exposed by the molding compound. The first lower surface of the first end portion of each of the leads is covered with the anti-conduction film.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 26, 2013
    Applicant: CHIPBOND TECHNOLOGY CORPORATION
    Inventors: Chin-Tang Hsieh, Chih-Ming Kuo, Chia-Jung Tu, Shih-Chieh Chang, Lung-Hua Ho, Chih-Hsien Ni
  • Publication number: 20130249068
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a routable distribution layer on a leadframe; mounting an integrated circuit over the routable distribution layer; encapsulating with an encapsulation over the routable distribution layer; peeling the leadframe away from the routable distribution layer with a bottom distribution side of the routable distribution layer exposed from the encapsulation; and mounting an external interconnect on the routable distribution layer.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 26, 2013
    Inventors: Byung Tai Do, Arnel Senosa Trasporto, Linda Pei Ee Chua
  • Publication number: 20130249589
    Abstract: An interposer is provided which includes: a substrate having a first surface with a plurality of first conductive pads and a second surface opposite to the first surface, the second surface having a plurality of second conductive pads; a plurality of conductive through holes penetrating the first and second surfaces of the substrate and electrically connecting the first and second conductive pads; and a first removable electrical connection structure formed on the first surface and electrically connecting a portion of the first conductive pads so as to facilitate electrical testing of the interposer.
    Type: Application
    Filed: September 14, 2012
    Publication date: September 26, 2013
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Lu-Yi Chen, Chi-Hsin Chiu, Shih-Kuang Chiu
  • Publication number: 20130241041
    Abstract: A semiconductor package with a die pad, a die disposed on the die pad, and a first lead disposed about the die pad. The first lead includes a contact element, an extension element extending substantially in the direction of the die pad, and a concave surface disposed between the contact element and the extension element. A second lead having a concave surface is also disposed about the die pad. The first lead concave surface is opposite in direction to the second lead concave surface.
    Type: Application
    Filed: March 15, 2012
    Publication date: September 19, 2013
    Inventors: Lin-Wang Yu, Ping-Cheng Hu, Che-Chin Chang, Yu-Fang Tsai
  • Patent number: 8536686
    Abstract: According to an embodiment, a semiconductor device includes a first frame, a semiconductor element fixed to the first frame, a second frame, a third frame and a resin package. The second frame faces the first frame and is away from the first frame, the second frame being electrically connected to the semiconductor element via a metal wire. The resin package covers the semiconductor element, the first frame, and the second frame. The first frame and the second frame are exposed in one major surface of the resin package. The third frame juxtaposed to one of the first frame and the second frame, the third frame being continuously exposed from the major surface of the resin package to a side surface in contact with the major surface.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: September 17, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hitoshi Kawasaki
  • Publication number: 20130234306
    Abstract: A lead frame has a flag, a peripheral frame, and main tie bars coupling the flag to the peripheral frame. At least one cross tie bar extends between two of the main tie bars and an inner row of external connector pads extending from an inner side of the cross tie bar and an outer row of external connector pads extending from an outer side of the cross tie bar. Both an inner non-electrically conductive support bar and an outer non-electrically conductive support bar are attached across the two of the main tie bars. The inner non-electrically conductive support bar is attached to upper surfaces of the two of the main tie bars and to upper surfaces of the inner row of the external connector pads.
    Type: Application
    Filed: September 6, 2012
    Publication date: September 12, 2013
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Shunan Qiu, Zhigang Bai, Haiyan Liu
  • Patent number: 8525305
    Abstract: A lead carrier provides support for an integrated circuit chip and associated leads during manufacture as packages containing such chips. The lead carrier includes a temporary support member with multiple package sites. Each package site includes a die attach pad surrounded by a plurality of terminal pads. The pads are formed of a sintered electrically conductive material. A chip is mounted upon the die attach pad and wire bonds extend from the chip to the terminal pads. The pads, chip and wire bonds are all encapsulated within a mold compound. The temporary support member can be peeled away and then the individual package sites can be isolated from each other to provide completed packages including multiple surface mount joints for mounting within an electronics system board. Edges of the pads are contoured to cause the pads to engage with the mold compound to securely hold the pads within the package.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: September 3, 2013
    Assignee: EoPlex Limited
    Inventor: Philip E. Rogren
  • Patent number: 8525313
    Abstract: A chip assembly includes a chip, a paddle, an interface layer, a frequency extending device, and lands. The chip has contacts. The interface layer is disposed between the chip and the paddle. The frequency extending device has at least a conductive layer and a dielectric layer. The conductive layer has conductive traces. The frequency extending device is disposed adjacent to the side of the chip and overlying the paddle. The lands are disposed adjacent to the side of the paddle. The contacts are connected to the conductive traces. The conductive traces are connected to the lands. The frequency extending device is configured to reduce impedance discontinuity such that the impedance discontinuity produced by the frequency extending device is less than an impedance discontinuity that would be produced by bond wires each having a length greater than or substantially equal to the distance between the contacts and the lands.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: September 3, 2013
    Assignee: Semtech Corporation
    Inventors: Binneg Y. Lao, William W. Chen
  • Patent number: 8525312
    Abstract: A microelectronic assembly can include a microelectronic element and a lead frame having a first unit and a second unit overlying the first unit and assembled therewith. The first unit can have a first metal layer comprising a portion of the thickness of the lead frame and including terminals and first conductive elements extending away therefrom. The second unit can have a second metal layer comprising a portion of the thickness of the lead frame and including bond pads and second conductive elements extending away therefrom. The first and second units each can have an encapsulation supporting at least portions of the respective first and second conductive elements. At least some of the second conductive elements can overlie portions of corresponding ones of the first conductive elements and can be joined thereto. The microelectronic element can have contacts electrically connected with the bond pads of the lead frame.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: September 3, 2013
    Assignee: Tessera, Inc.
    Inventors: Qwai H. Low, Chok J. Chia, Kishor Desai, Charles G. Woychik, Huailiang Wei
  • Patent number: 8525309
    Abstract: A microelectronic unit can include a lead frame and a device chip. The lead frame can have a plurality of monolithic lead fingers extending in a plane of the lead frame. Each lead finger can have a fan-out portion and a chip connection portion extending in the lead frame plane. The fan-out portions can have first and second opposed surfaces and a first thickness in a first direction between the opposed surfaces. The chip connection portions can have a second thickness smaller than the first thickness. The chip connection portions can define a recess below the first surface. The device chip can have a plurality of at least one of passive devices or active devices. The device chip can have contacts thereon facing the chip connection portions and electrically coupled thereto. At least a portion of a thickness of the device chip can extend within the recess.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 3, 2013
    Assignee: Tessera, Inc.
    Inventors: Chok Chia, Qwai Low, Kishor Desai, Charles G. Woychik
  • Patent number: 8519521
    Abstract: An electronic device can include a packaging material having a first surface and a second surface opposite the first surface, and leads including die connection surfaces and external connection surfaces. The electronic device can further include a trench extending from an upper surface of the packaging substrate towards a lower surface of the packaging substrate, wherein a set of leads lie immediately adjacent to the trench, and the packaging material is exposed at the bottom of the trench. In an embodiment, an encapsulant is formed over the upper surface of the packaging substrate and within the trench. In a particular embodiment, the trenches may be formed before or after placing a die over the packaging substrate, or before or after forming electrical connections between the die and leads of the packaging substrate.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: August 27, 2013
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Shutesh Krishnan, Chee Hiong Chew, Jatinder Kumar
  • Patent number: 8519526
    Abstract: A semiconductor package includes: a chip having an active surface with a plurality of electrode pads and an inactive surface opposite to the active surface; an encapsulant encapsulating the chip and having opposite first and second surfaces, the first surface being flush with the active surface of the chip; and first and second metal layers formed on the second surface of the encapsulant, thereby providing a rigid support to the overall structure to prevent warpage and facilitating heat dissipation of the overall structure.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: August 27, 2013
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Jung-Pang Huang, Hui-Min Huang, Kuan-Wei Chuang, Chun-Tang Lin, Yih-Jenn Jiang
  • Patent number: 8519517
    Abstract: A semiconductor package system, and method of manufacturing thereof, includes: an electrical substrate having a contact pad; a support structure having a lead finger thereon; a bump on the lead finger, the bump clamped on a top and a side of the lead finger and connected with the contact pad; and an encapsulant over the lead finger and the electrical substrate.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: August 27, 2013
    Assignee: Stats Chippac Ltd.
    Inventors: Hun Teak Lee, Jong Kook Kim, ChulSik Kim, Ki Youn Jang
  • Publication number: 20130200503
    Abstract: A semiconductor package includes a semiconductor die having an upper surface with bond pads thereon. A plurality of leads surround sides of the semiconductor die. Bonding wires couple each of the bond pads to a corresponding one of the plurality of leads. An encapsulant covers the upper surface and the sides of the semiconductor die and the bonding wires. The encapsulant also covers a portion of a top of each of the plurality of leads and sides of the plurality of leads that are nearest the semiconductor die. A bottom of each of the plurality of leads and the sides of the plurality of leads that are farthest from the semiconductor die are exposed outside the encapsulant. A protective film covers a lower surface of the semiconductor die and has a bottom that is substantially coextensive with the bottom of each of the plurality of leads.
    Type: Application
    Filed: July 31, 2012
    Publication date: August 8, 2013
    Applicant: CARSEM (M) SDN, BHD.
    Inventors: Chan Boon Meng, Law Wai Ling
  • Publication number: 20130200397
    Abstract: According to one embodiment, a semiconductor device includes an input lead, a light emitting element, an output lead, a light receiving element and a resin molded body. The input lead includes an input inner lead portion, an input outer lead portion and a first silver layer. The light emitting element is provided on the first silver layer. The output lead includes an output inner lead portion, an output outer lead portion and a second silver layer. The second silver layer includes an upper surface portion and a side surface portion. The light receiving element is provided on the second silver layer and is capable of receiving light. The output lead includes a cutting surface extending from the side surface portion of the second silver layer to the side surface of the output inner lead portion. The resin molded body covers the cutting surface.
    Type: Application
    Filed: August 31, 2012
    Publication date: August 8, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Takeshi BIWA
  • Publication number: 20130200502
    Abstract: A method of manufacturing a semiconductor device includes providing a transfer foil. A plurality of semiconductor chips is placed on and adhered to the transfer foil. The plurality of semiconductor chips adhered to the transfer foil is placed over a multi-device carrier. Heat is applied to laminate the transfer foil over the multi-device carrier, thereby accommodating the plurality of semiconductor chips between the laminated transfer foil and the multi-device carrier.
    Type: Application
    Filed: February 8, 2012
    Publication date: August 8, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Ivan Nikitin, Stefan Landau, Joachim Mahler, Alexander Heinrich, Ralf Wombacher
  • Patent number: 8502363
    Abstract: A semiconductor device package including a substrate, first and second solder joints, a die pad, leads and enhancement elements surrounding the die pad, a chip electrically connected to the leads, and a package body encapsulating the chip, portions of the leads, and portions of the enhancement elements, but leaving exposed at least a side surface of each enhancement element. Side surfaces of the enhancement elements and the package body are coplanar. The substrate includes first pads corresponding to the leads and second pads corresponding to the enhancement elements. The first solder joints are disposed between the first pads and the leads. The second solder joints are disposed between the second pads and the enhancement elements. The second solder joints contact side surfaces of the enhancement elements. The surface area of the second pads is greater than the surface area of the corresponding enhancement elements.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 6, 2013
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Po-Shing Chiang, Ping-Cheng Hu, Yu-Fang Tsai
  • Patent number: 8502360
    Abstract: The invention provides a resin sealing type electronic device having high reliability by eliminating a solder burr formed when a tie bar is cut. The invention also prevents a welding failure between a lead of the resin sealing type electronic device and an external electrode, and provides a large area for bonding an electronic component to the lead to prevent a connection failure. In the method of manufacturing the resin sealing type semiconductor device of the invention, in a case that a tie bar is cut after a semiconductor die and so on are mounted on a lead frame and these are resin-sealed, the cutting of the tie bar is performed from the side of the lead frame where a lead burr is formed by presswork. Furthermore, in the resin sealing type electronic device of the invention, a die capacitor is bonded to burr formation surfaces of a lead and an island using conductive paste. Since the burr formation surface has a larger surface area than a rounded surface, a large bonding area is obtained.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: August 6, 2013
    Assignees: SANYO Semiconductor Co., Ltd., Semiconductor Components Industries, LLC
    Inventors: Takeshi Sasaki, Masahiro Shindo
  • Patent number: 8497574
    Abstract: In one implementation, a high power semiconductor package is configured as a buck converter including a control transistor and a sync transistor disposed on a leadframe, a flip chip driver integrated circuit (IC) for driving the control and sync transistors, and conductive clips electrically coupling the top surfaces of the transistors to substrate pads such as leadframe pads. The source of the control transistor is electrically coupled to the drain of the sync transistor using the leadframe and one of the transistor conductive clips. In this manner, the leadframe and the conductive clips provide efficient current conduction by direct mechanical connection and large surface area conduction, thereby enabling a package with significantly reduced electrical resistance, form factor, complexity, and cost.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: July 30, 2013
    Assignee: International Rectifier Corporation
    Inventors: Eung San Cho, Chuan Cheah
  • Patent number: 8497573
    Abstract: In one implementation, a high power semiconductor package is configured as a buck converter including a control transistor, a sync transistor, a driver integrated circuit (IC) for driving the control and sync transistors, and a conductive clip extending from a sync drain on a top surface of the sync transistor to a control source on a top surface of the control transistor. The conductive clip may also connect to substrate pads such as a leadframe pad for current input and output. In this manner, the conductive clip provides an efficient connection between the control source and the sync drain by direct mechanical connection and large surface area conduction, thereby enabling a package with significantly reduced electrical resistance, form factor, complexity, and cost.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: July 30, 2013
    Assignee: International Rectifier Corporation
    Inventors: Eung San Cho, Chuan Cheah
  • Patent number: 8492786
    Abstract: A light emitting device package is disclosed. The light emitting device package includes a light emitting device disposed on a first lead frame, the light emitting device having an electrode pad on an upper surface thereof, a first wire to electrically interconnect a second lead frame spaced apart from the first lead frame and the electrode pad, and a first bonding ball disposed on the second lead frame, the first bonding ball spaced apart from a first contact point, which is in contact with the first wire and the second lead frame, wherein the first bonding ball is disposed between the first wire and the second lead frame to electrically interconnect the first wire and the second lead frame.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: July 23, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventors: Sunghee Won, Youngsu Chun
  • Patent number: 8492885
    Abstract: According to one embodiment, a semiconductor storage device includes an organic board provided with external connection terminals on one surface and formed as an individual piece into a plane shape substantially identical to that of an area where the external connection terminals are provided, a lead frame having a mounting area positioned relative to the organic board, and a semiconductor memory chip bonded to the mounting area.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 23, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ryoji Matsushima