Assembly Of Semiconductor Devices On Lead Frame (epo) Patents (Class 257/E23.052)
  • Patent number: 8314489
    Abstract: This invention relates to a module including a semiconductor chip, at least two contact elements and an insulating material between the two contact elements. Furthermore, the invention relates to a method for production of such a module.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: November 20, 2012
    Assignee: Infineon Technologies AG
    Inventors: Ralf Siemieniec, Uwe Kirchner
  • Publication number: 20120286412
    Abstract: A semiconductor device 100 includes a first insulating material 110 attached to a second main surface 106b of a semiconductor chip 106, and a second insulating material 112 attached to side surfaces of the semiconductor chip 106, the first insulating material 110 and an island 102. The semiconductor chip 106 is fixed to the island 102 via the first insulating material 110 and the second insulating material 112. The first insulating material 110 ensures a high dielectric strength between the semiconductor chip 106 and the island 102. Though the second insulating material 112 having a modulus of elasticity greater than that of the first insulating material 110, the semiconductor chip 106 is firmly attached to the island 102.
    Type: Application
    Filed: January 17, 2011
    Publication date: November 15, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Akihiro Kimura, Tsunemori Yamaguchi
  • Publication number: 20120286410
    Abstract: Disclosed is a discrete semiconductor device package (100) comprising a leadframe portion (10) comprising a recess (14) having a depth substantially equal to the thickness of the discrete semiconductor device (20), wherein a raised portion of the leadframe portion adjacent to said recess defines a first contact area (12); a discrete semiconductor device (20) in said recess, wherein the exposed surface (22) of the discrete semiconductor device defines a second contact area; a protective layer (30) covering the leadframe portion and the a discrete semiconductor device but not the first contact area and the second contact area; and respective plating layers (40) covering the first contact area and the second contact area. A method of manufacturing such a package and a carrier comprising such a package are also disclosed.
    Type: Application
    Filed: November 10, 2011
    Publication date: November 15, 2012
    Applicant: NXP B.V.
    Inventors: Roelf Anco Jacob GROENHUIS, Sven WALCZYK, Paul DIJKSTRA, Emiel de BRUIN
  • Publication number: 20120280379
    Abstract: A semiconductor device has a die pad, a heat dissipating plate in the form of a frame arranged between the die pad and leads so as to surround the die pad, members that connect the die pad and the inner edge of the heat dissipating plate, and a suspension lead linked to the outer extension of the heat dissipating plate. A semiconductor chip larger than the die pad is mounted over the die pad and the members. Top surfaces of the die pad and the members in opposition to the back surface of the chip are bonded to the back surface of the chip with silver paste. Heat is conducted from the back surface of the chip to the heat dissipating plate via the silver paste, the die pad, and the members, and dissipated to the outside of the semiconductor device via the leads.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 8, 2012
    Inventors: JUNICHI ARITA, Kazuko Hanawa, Makoto Nishimura
  • Publication number: 20120273929
    Abstract: The present technology discloses a multi-die package. The package comprises a lead frame structure and three dies including a first flip chip die, a second flip chip die and a third flip chip die stacked vertically. The first flip chip die is mounted on the bottom surface of the lead frame structure through the flip chip bumps; the second flip chip is mounted on the top surface of the first flip chip die through flip chip bumps; and the third flip chip die is mounted on the top surface of the lead frame structure through flip chip bumps.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Inventor: Hunt Hang Jiang
  • Publication number: 20120273873
    Abstract: A semiconductor die package is disclosed. It includes a leadframe structure comprising a first die attach pad and a second die attach pad. A plurality of leads extend from the first and second die attach pads. The plurality of leads includes at least a first control lead and a second control lead. A first semiconductor die including a first device is mounted on the first die attach pad, and a second semiconductor die has a second device is mounted on the second die attach pad. A housing is provided in the semiconductor die package and protects the first and second dies. The housing may have an exterior surface and at least partially covers the first semiconductor die and the second semiconductor die. The first control lead and the second control lead are at opposite sides of the semiconductor die package.
    Type: Application
    Filed: July 11, 2012
    Publication date: November 1, 2012
    Inventor: David Grey
  • Patent number: 8299587
    Abstract: A lead frame package structure for side-by-side disposed chips including a lead frame, at least two chips, and a package material. The lead frame includes a plurality of inner leads; a plurality of outer leads; and at least two chip carrying areas having different horizontal levels. The chips are of different sizes and are respectively disposed on the chip carrying areas. The package material encapsulate the inner leads, the chip carrying areas and the chips, wherein the outer leads exposed out of the package material extend from the inner leads and have different horizontal levels.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: October 30, 2012
    Assignee: Powertech Technology Inc.
    Inventor: Wen-Jeng Fan
  • Publication number: 20120267772
    Abstract: To provide a semiconductor device having suspension leads with less distortion. In QFN having a plurality of external terminal portions at the periphery of the bottom surface of a sealing body, a plurality of leads is linked to a plurality of long suspension leads of the QFN at an intermediate portion thereof or at between the intermediate portion and a position near the die pad. These long suspension leads are each supported by these leads, making it possible to suppress distortion of each of the suspension leads in a wire bonding step or molding step in the fabrication of the QFN.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 25, 2012
    Applicant: Renesas Electronics Corporation
    Inventor: Atsushi FUJISAWA
  • Patent number: 8293547
    Abstract: An embodiment of a method to form a hybrid integrated circuit device is described. This embodiment of the method comprises: forming a first die using a first lithography, where the first die is on a substrate; and forming a second die using a second lithography, where the second die is on the first die. The first lithography used to form the first die is a larger lithography than the second lithography used to form the second die. The first die is an IO die.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: October 23, 2012
    Assignee: Xilinx, Inc.
    Inventors: James Karp, Steven P. Young, Bernard J. New, Scott S. Nance, Patrick J. Crotty
  • Patent number: 8288848
    Abstract: A semiconductor chip package is provided. The semiconductor chip package includes a lead frame having a chip carrier. A semiconductor chip is mounted on the chip carrier, having a plurality of bonding pads thereon. A package substrate has a cavity therein to accommodate the chip carrier and the semiconductor chip, wherein at least one of the bonding pads of the semiconductor chip is electrically coupled to the package substrate.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: October 16, 2012
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Patent number: 8283756
    Abstract: An electronic component includes a metal substrate, a semiconductor chip configured to be attached to the metal substrate, and a buffer layer positioned between the metal substrate and the semiconductor chip configured to mechanically decouple the semiconductor chip and the metal substrate. The buffer layer extends across less than an entire bottom surface of the semiconductor chip.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: October 9, 2012
    Assignee: Infineon Technologies AG
    Inventors: Ivan Galesic, Joachim Mahler, Alexander Heinrich, Khalil Hosseini
  • Publication number: 20120248590
    Abstract: A semiconductor package is assembled using first and second lead frames. The first lead frame includes a die flag and the second lead frame includes lead fingers. When the first and second lead frames are mated, the lead fingers surround the die flag. Side surfaces of the die flag are partially etched to form an extended die attach surface on the die flag, and portions of the top surface of each of the lead fingers also are partially etched to form lead finger surfaces that are complementary with the etched side surfaces of the die flag. A semiconductor die is attached to the extended die attach surface and bond pads of the semiconductor die are electrically connected to the lead fingers. An encapsulating material covers the die, electrical connections, and top surfaces of the die flag and lead fingers.
    Type: Application
    Filed: March 7, 2012
    Publication date: October 4, 2012
    Applicant: FREESCALE SEMICONDUCTOR, INC
    Inventors: Peng LIU, Qingchun He, Ping Wu
  • Publication number: 20120241930
    Abstract: A multiple die package includes a folded leadframe for interconnecting at least two die attached to another leadframe. In a synchronous voltage regulator the folded leadframe, which is formed from a single piece of material, connects the high side switching device with the low side switching device to provide a low resistance, low inductance connection between the two devices.
    Type: Application
    Filed: June 8, 2012
    Publication date: September 27, 2012
    Inventors: Yong Liu, Hua Yang, Tiburcio A. Maldo
  • Publication number: 20120241932
    Abstract: A semiconductor device according to the embodiment is provided with an inner lead. The inner lead includes a first surface and a second surface opposite thereto. A semiconductor chip is mounted on the first surface. A first resin portion seals the semiconductor chip on the first surface. A second resin portion is provided on the second surface. An outer lead is connected to the inner lead, and configured to project outside from the first and second resin portions. A width of the second resin portion in a first direction where the outer lead projects is smaller than that of the first resin portion in the first direction.
    Type: Application
    Filed: September 13, 2011
    Publication date: September 27, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Yoshiaki GOTO
  • Publication number: 20120241933
    Abstract: In an embodiment, a semiconductor memory card includes a lead frame including external connection terminals, a lead portion, a chip component mounting portion and a semiconductor chip mounting portion, a chip component mounted on the chip component mounting portion, a memory chip disposed on the semiconductor chip mounting portion, and a controller chip. A rewiring layer is formed on a surface of the memory chip. The lead frame is resin-sealed. An electric circuit of the controller chip and the memory chip on the lead frame is formed by the lead portion, the rewiring layer and a metal wire connected to electrode pad of the chips, the lead portion, and the rewiring layer.
    Type: Application
    Filed: February 29, 2012
    Publication date: September 27, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuhide Doi, Naohisa Okumura, Taku Nishiyama, Katsuyoshi Watanabe, Takeshi Ikuta
  • Patent number: 8237232
    Abstract: The electrical characteristics of a semiconductor device are enhanced. In the package of the semiconductor device, there are encapsulated first and second semiconductor chips with a power MOS-FET formed therein and a third semiconductor chip with a control circuit for controlling their operation formed therein. The bonding pads for source electrode of the first semiconductor chip on the high side are electrically connected to a die pad through a metal plate. The bonding pad for source electrode of the second semiconductor chip on the low side is electrically connected to lead wiring through a metal plate. The metal plate includes a first portion in contact with the bonding pad of the second semiconductor chip, a second portion extended from a short side of the first portion to the lead wiring, and a third portion extended from a long side of the first portion to the lead wiring.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: August 7, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Tomoaki Uno, Nobuyoshi Matsuura, Yukihiro Sato, Keiichi Okawa, Tetsuya Kawashima, Kisho Ashida
  • Publication number: 20120193774
    Abstract: Provided is a contactless communication medium which can prevent invasion of static electricity and has an outer surface which can satisfy requirements on the flatness thereof. A contactless communication medium is provided, in which a sealing member including an insulating layer and a conductive layer provided in a stacked manner and having a shape covering an IC module is located such that the insulating layer is on the IC module side. Owing to this, static electricity coming from outside is diffused by the conductive layer and blocked by the insulating layer. Thus, adverse influence of the static electricity on the IC module is prevented with certainty. The contactless communication medium can also satisfy the requirements on the flatness of an outer surface thereof.
    Type: Application
    Filed: August 25, 2010
    Publication date: August 2, 2012
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Junsuke Tanaka, Yoshiyuki Mizuguchi
  • Publication number: 20120181996
    Abstract: A multi chip module having a current sensing circuit and a semiconductor half bridge configuration having two vertically stacked field effect transistor dies that are connected by horizontally extending tap clips at respective opposite sides of their channels, wherein the current sensing circuit is coupled to two checkpoints, at least one being located on one of the tap clips so as to measure a voltage drop over a predetermined portion of the tap clip acting as a shunt resistor for sensing a current that is provided to a switching node of the half bridge configuration.
    Type: Application
    Filed: January 16, 2012
    Publication date: July 19, 2012
    Applicant: Texas Instruments Deutschland GmbH
    Inventor: Dirk Gehrke
  • Publication number: 20120175760
    Abstract: A semiconductor device includes a die pad, the die pad including a first surface and a second surface, a first chip arranged on the first surface, the first chip including a first side and a second side crossing to the first side, a second chip arranged on the first surface, a plurality of first recesses formed on the first surface, a plurality of second recesses formed on the first surface, the plurality of second recesses being different from the first plurality of recesses in at least one of size and geometry, a wire, a resin, and a lead, one end of the lead being connected to another end of the wire and a part the lead being encapsulated by the resin. The plurality of first recesses includes a third recess and a fourth recess, and the first chip is arranged in a first area.
    Type: Application
    Filed: March 22, 2012
    Publication date: July 12, 2012
    Applicant: Renesas Electronics Corporation
    Inventor: Kenji Nishikawa
  • Publication number: 20120175759
    Abstract: A wiring device for a semiconductor device, a composite wiring device for a semiconductor device and a resin-sealed semiconductor device are provided, each of which is capable of mounting thereon a semiconductor chip smaller than conventional chips and being manufactured at lower cost. The wiring device connects an electrode on a semiconductor chip with an external wiring device, and has an insulating layer, a metal substrate and a copper wiring layer. The wiring device has a semiconductor chip support portion provided on the side of the copper wiring layer with respect to the insulating layer. The copper wiring layer includes a first terminal, a second terminal and a wiring portion. The first terminal is connected with the electrode. The second terminal is connected with the external wiring device. The wiring portion connects the first terminal with the second terminal.
    Type: Application
    Filed: February 23, 2012
    Publication date: July 12, 2012
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Susumu Baba, Masachika Masuda, Hiromichi Suzuki
  • Publication number: 20120168927
    Abstract: A semiconductor device is configured that two or more semiconductor elements are stacked and mount on a lead frame, the aforementioned lead frame is electrically joined to the semiconductor element with a wire, and the semiconductor element, the wire and an electric junction are encapsulated with a cured product of an epoxy resin composition for encapsulating semiconductor device, and that the epoxy resin composition for encapsulating semiconductor device contains (A) an epoxy resin; (B) a curing agent; and (C) an inorganic filler, and that the (C) inorganic filler contains particles having particle diameter of equal to or smaller than two-thirds of a thinnest filled thickness at a rate of equal to or higher than 99.9% by mass.
    Type: Application
    Filed: August 27, 2010
    Publication date: July 5, 2012
    Inventor: Shingo Itoh
  • Patent number: 8212347
    Abstract: The present invention provides a chip-stacked package structure with leadframe having bus bar, comprising: a leadframe composed of a plurality of inner leads arranged in rows facing each other, a plurality of outer leads, and a die pad, wherein the die pad is provided between the plurality of inner leads and is vertically distant from the plurality of inner leads; a chip-stacked structure formed with a plurality of chips that stacked together and set on the die pad, the plurality of chips and the plurality of inner leads being electrically connected with each other; and an encapsulant covering over the chip-stacked package structure and the leadframe, in which the leadframe comprises at least a bus bar, which is provided between the plurality of inner leads arranged in rows facing each other and the die pad.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: July 3, 2012
    Assignees: ChipMOS Technologies Inc, ChipMOS Technologies (Bermuda) Ltd
    Inventors: Geng-Shin Shen, Wu-Chang Tu
  • Patent number: 8212343
    Abstract: A semiconductor chip package comprises a lead frame having a chip carrier having a first surface and an opposite second surface. A first semiconductor chip is mounted on the first surface, having a plurality of bonding pads thereon, wherein the first semiconductor chip has an area larger that that of the chip carrier. A package substrate has a central region attached to the second surface of the chip carrier, having an area larger than that of the first semiconductor chip, wherein the package substrate comprises a plurality of fingers on a top surface thereof in a marginal region of the package substrate, which are arranged in an array with a row of inner fingers adjacent to the first semiconductor chip and a row of outer fingers adjacent to an edge of the package substrate, wherein the inner and outer fingers are electrically connected to the bonding pads of the first semiconductor chip and the lead frame respectively.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: July 3, 2012
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Patent number: 8207603
    Abstract: The present invention provides a stacked chip package structure with leadframe having inner leads with transfer pad, comprising: a leadframe composed of a plurality of inner leads arranged in rows facing each other, a plurality of outer leads, and a die pad, wherein the die pad is provided between the plurality of inner leads arranged in rows facing each other and vertically distant from the plurality of inner leads; an offset chip-stacked structure formed with a plurality of chips stacked together, the offest chip-stacked structure being set on the die pad and electrically connected to the plurality of inner leads arranged in rows facing each other; and an encapsulant covering the offset chip-stacked structure and the leadframe, the plurality of outer leads extending out of said encapsulant; the improvement of which being that the inner leads of the leadframe are coated with an insulating layer and a plurality of metal pads are selectively formed on the insulating layer.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: June 26, 2012
    Assignees: Chipmos Technologies Inc, Chipmos Technologies (Bermuda) Ltd
    Inventors: Geng-Shin Shen, Wu-Chang Tu
  • Publication number: 20120146204
    Abstract: The device of this invention includes a semiconductor die attached to a bare copper lead frame and electrically coupled to a lead by a metal wire coated with a metallic material. The device would function similarly to devices where the lead frames were coated with other metallic materials, but at lower costs because instead of plating the lead frame the wire is plated. The wire can be either gold or aluminum. When the wire is gold, the coating may be silver or other suitable metallic materials. When the wire is aluminum, the coating may be nickel, palladium, or other suitable metals.
    Type: Application
    Filed: November 14, 2011
    Publication date: June 14, 2012
    Applicant: Fairchild Semiconductor Corporation
    Inventors: Sangdo Lee, Yonksuk Kwon, Bin Cai
  • Publication number: 20120133038
    Abstract: An integrated circuit package system includes a trace frame includes: an encapsulant; a first series of bonding pads along a length of the encapsulant; a second series of the bonding pads along a width of the encapsulant; conductive traces for connecting the bonding pads of the first series to the bonding pads of the second series in a one to one correspondence; and a first integrated circuit die on the encapsulant and on the conductive traces that extend beyond the first integrated circuit die.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Inventors: Jae Hak Yee, Junwoo Myung, Byoung Wook Jang
  • Publication number: 20120126384
    Abstract: The present invention employs tie bar(s) of a lead frame as contact(s) so as to increase the number of contacts in a package structure. Therefore, a die can be packaged in a package structure with a smaller dimension to lower packaging cost of an integrated circuit.
    Type: Application
    Filed: September 14, 2011
    Publication date: May 24, 2012
    Applicant: GREEN SOLUTION TECHNOLOGY CO., LTD.
    Inventor: Shang-Shin MENG
  • Publication number: 20120126406
    Abstract: A semiconductor power chip may have a semiconductor die having a power device fabricated on a substrate thereof, wherein the power device has at least one first contact element, a plurality of second contact elements and a plurality of third contact elements arranged on top of the semiconductor die; a plurality of ball bumps or a loaf bump disposed on each of the plurality of second elements and the plurality of third elements; and at least one ball bump or loaf on the at least one first contact element.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 24, 2012
    Inventor: Gregory Dix
  • Patent number: 8183687
    Abstract: Methods and apparatus for improved electrical, mechanical and thermal performance of stacked IC packages are described. An IC package comprises a substrate, a first die, a second die, and an interposer with an opening in a first surface of the interposer configured to accommodate the first die. The first IC die is attached a first surface of the substrate. The interposer is mounted on the first surface of the substrate such that the first IC die is placed within the opening in the interposer. The second die is mounted on a second surface of the interposer. Wire bonds couple bond pads on the first surfaces of IC die are coupled to the first surface of the substrate. A mold compound encapsulates the first IC die, the second IC die, the interposer and the wire bonds.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: May 22, 2012
    Assignee: Broadcom Corporation
    Inventors: Rezaur Rahman Khan, Sam Ziqun Zhao
  • Publication number: 20120112330
    Abstract: A semiconductor device, such as a semiconductor device of chip on film package, is provided. The semiconductor device includes at least an integrated circuit formed on a film base, each integrated circuit includes a chip and a plurality of leads formed interior to a boundary of a predetermined range, each lead is formed with a predetermined distance from the boundary. While the integrated circuit is punched from the film base along the boundary, conductive residue of leads left on the puncher is therefore reduced or avoided.
    Type: Application
    Filed: August 1, 2011
    Publication date: May 10, 2012
    Applicant: RAYDIUM SEMICONDUCTOR CORPORATION
    Inventors: Ping-Chia Liao, Chin-Yung Chen, Chun-Chieh Yang
  • Publication number: 20120104579
    Abstract: An integrated circuit package system includes an external interconnect having a lead tip and a lead body, including a recess in the lead body including a first recess segment, having an orientation substantially parallel to the lengthwise dimension of the lead body, and a second recess segment intersecting and perpendicular to the first recess segment along a lead body top surface of the lead body, the first recess segment at a bottom portion of the second recess segment; an internal interconnect between an integrated circuit die and the external interconnect; and an encapsulation to cover the external interconnect with the recess filled.
    Type: Application
    Filed: January 6, 2012
    Publication date: May 3, 2012
    Inventors: Byung Tai Do, Sung Uk Yang
  • Publication number: 20120104587
    Abstract: Some exemplary embodiments of an advanced direct contact leadless package and related structure and method, especially suitable for packaging high current semiconductor devices, have been disclosed. One exemplary structure comprises a mold compound enclosing a first contact lead frame portion, a paddle portion, and an extended contact lead frame portion held together by a mold compound. A first semiconductor device is attached on top of the lead frame portions as a flip chip, while a second semiconductor device is attached to a bottom side of said paddle portion and is in electrical contact with said the first semiconductor device. The extended contact lead frame portion is in direct electrical contact with the second semiconductor device without using a bond wire. Alternative exemplary embodiments may include additional extended lead frame portions, paddle portions, and semiconductor devices in various configurations.
    Type: Application
    Filed: January 6, 2012
    Publication date: May 3, 2012
    Inventor: Eung San Cho
  • Patent number: 8169062
    Abstract: A semiconductor integrated circuit package having a leadframe (108) that includes a leadframe pad (103a) disposed under a die (100) and a bonding metal area (101a) that is disposed over at least two adjacent sides of the die. The increase in the bonding metal area (101a) increases the number of interconnections between the metal area (101a) and the die (100) to reduce the electric resistance and inductance. Furthermore, the surface area of the external terminals radiating from the package's plastic body (106) is increased if not maximized so that heat can be dissipated quicker and external terminal resistances reduced. The integrated circuit is applicable for MOSFET devices and the bonding metal area (101a) is used for the source terminal (101). The bonding metal area may have a “L” shape, a “C” shape, a “J” shape, an “I” shape or any combination thereof.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: May 1, 2012
    Assignee: Alpha and Omega Semiconductor Incorporated
    Inventors: Leeshawn Luo, Anup Bhalla, Yueh-Se Ho, Sik K. Lui, Mike Chang
  • Publication number: 20120091571
    Abstract: A semiconductor device of the present invention includes a resin package, a semiconductor chip sealed in the resin package, and having first and second pads on a front surface, a lead integrated island sealed in the resin package, to one surface of which a back surface of the semiconductor chip is bonded, and the other surface of an opposite side to the one surface of which is partially exposed from a bottom surface of the resin package as a first pad connecting terminal for electrical connection between the first pad and outside and a back connecting terminal for electrical connection between the back surface of the semiconductor chip and outside separately from each other, and a lead formed separately from the lead integrated island, sealed in the resin package, one surface of which is connected with the second pad by a wire, and the other surface of an opposite side to the one surface of which is exposed from a bottom surface of the resin package as a second pad connecting terminal for electrical connectio
    Type: Application
    Filed: May 13, 2010
    Publication date: April 19, 2012
    Inventors: Akihiro Koga, Toichi Nagahara
  • Publication number: 20120086112
    Abstract: A pallet (501) supporting a half-etched leadframe with cantilever-type leads (403) without metallic supports during the step of attaching components (510) to the leads in order to assemble an electronic system. After assembly, the pallet is removed before the molding step that encapsulates (601a) the components on the leadframe and mechanically supports (601b) the cantilever leads. The pallet is machined from metal or inert plastic material, tolerates elevated temperatures during soldering, and is reusable for the next assembly batch.
    Type: Application
    Filed: October 12, 2010
    Publication date: April 12, 2012
    Applicant: Texas Instruments Incorporated
    Inventors: Michael G. Amaro, Steven A. Kummerl, Taylor R. Efland, Sreenivasan K. Koduri
  • Patent number: 8153478
    Abstract: A method for manufacturing an integrated circuit package system includes: forming a die paddle; forming an under paddle leadframe including lower leadfingers thereon; attaching the under paddle leadframe to the die paddle with the lower leadfingers extending under the die paddle; attaching a die to the die paddle; and planarizing a bottom surface of the under paddle leadframe to separate the lower leadfingers under the die paddle.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: April 10, 2012
    Assignee: STATS ChipPAC Ltd.
    Inventors: Guruprasad Badakere Govindaiah, Arnel Trasporto
  • Publication number: 20120068320
    Abstract: An integrated circuit for implementing a switch-mode power converter is disclosed. The integrated circuit comprises at least a first semiconductor die having an electrically quiet surface, a second semiconductor die for controlling the operation of said first semiconductor die stacked on said first semiconductor die having said electrically quiet surface and a lead frame structure for supporting said first semiconductor die and electrically coupling said first and second semiconductor dies to external circuitry.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 22, 2012
    Inventors: Eric YANG, Jinghai ZHOU, Hunt Hang JIANG
  • Publication number: 20120068321
    Abstract: The invention enhances resistance to a surge in a semiconductor device having a semiconductor die mounted on a lead frame. An N type embedded layer, an epitaxial layer and a P type semiconductor layer are disposed on the front surface of a P type semiconductor substrate forming an IC die. A metal thin film is disposed on the back surface of the semiconductor substrate, and a conductive paste containing silver particles and so on is disposed between the metal thin film and a metal island. When a surge is applied to a pad electrode disposed on the front surface of the semiconductor layer, the surge current flowing from the semiconductor layer into the semiconductor substrate runs toward the metal island through the metal thin film.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 22, 2012
    Applicant: ON Semiconductor Trading, Ltd.
    Inventors: Yuichi WATANABE, Akira YAMANE, Yasuo OISHIBASHI
  • Publication number: 20120061815
    Abstract: A power semiconductor module having a substrate (102), at least one power semiconductor device (104) and at least one lead frame element (106), and a method for producing such a power semiconductor module (100). The connection between the at least one first lead frame element and the power semiconductor device as well as the connection between the first lead frame element and the substrate comprise a sintered metal connection (110), preferably a sintered silver connection.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 15, 2012
    Applicant: VINCOTECH HOLDINGS S.A.R.L.
    Inventors: Peter Sontheimer, Attila Ori
  • Publication number: 20120049335
    Abstract: A method of singulating semiconductor packages, the method comprising: providing a plurality of semiconductor dies coupled to a single common leadframe, wherein a molding compound at least partially encases the semiconductor dies and the leadframe; singulating the plurality of semiconductor dies, wherein the leadframe is at least partially cut between adjacent semiconductor dies, thereby forming exposed side surfaces on leads of the leadframe; and plating the exposed side surfaces of the leads with a plating material, wherein the plating material is a different material than the leads. In some embodiments, singulating the plurality of semiconductor dies comprises performing a full cut of the leadframe. In some embodiments, singulating the plurality of semiconductor dies comprises performing separate partial cuts of the leadframe.
    Type: Application
    Filed: August 19, 2011
    Publication date: March 1, 2012
    Applicant: UTAC THAI LIMITED
    Inventors: Saravuth Sirinorakul, Somchai Nondhasitthichai
  • Publication number: 20120038033
    Abstract: A semiconductor device includes a first semiconductor chip 1, a second semiconductor chip 4, a first lead frame 3 including a first die pad 9 on which the first semiconductor chip 1 is mounted, and a second lead frame 5 including a second die pad 11 on which the second semiconductor chip 4 is mounted. A sealing structure 6 covers the first semiconductor chip 1 and the second semiconductor chip 4. A noise shield 7 is disposed between the first semiconductor chip 1 and the second semiconductor chip 4.
    Type: Application
    Filed: October 31, 2011
    Publication date: February 16, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Akira OGA, Yoshihiro Tomita, Masanori Minamio
  • Patent number: 8110905
    Abstract: A method of manufacture of an integrated circuit packaging system includes: forming a substrate; mounting a base integrated circuit on the substrate; forming a leadframe interposer, over the base integrated circuit, by: providing a metal sheet, mounting an integrated circuit die on the metal sheet, injecting a molded package body on the integrated circuit die and the metal sheet, and forming a ball pad, a bond finger, or a combination thereof from the metal sheet that is not protected by the molded package body; coupling a circuit package on the ball pad; and forming a component package on the substrate, the base integrated circuit, and the leadframe interposer.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: February 7, 2012
    Assignee: Stats Chippac Ltd.
    Inventors: DongSam Park, YoungSik Cho, Sang-Ho Lee
  • Patent number: 8106490
    Abstract: A semiconductor chip package comprises a lead frame having a chip carrier having a first surface and an opposite second surface. A first semiconductor chip is mounted on the first surface, having a plurality of bonding pads thereon, wherein the first semiconductor chip has an area larger that that of the chip carrier. A package substrate has a central region attached to the second surface of the chip carrier, having an area larger than that of the first semiconductor chip, wherein the package substrate comprises a plurality of fingers on a top surface thereof in a marginal region of the package substrate, which are arranged in an array with a row of inner fingers adjacent to the first semiconductor chip and a row of outer fingers adjacent to an edge of the package substrate, wherein the inner and outer fingers are electrically connected to the bonding pads of the first semiconductor chip and the lead frame respectively.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: January 31, 2012
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Publication number: 20120018862
    Abstract: A semiconductor package includes a die pad; a semiconductor die mounted on the die pad; a plurality of leads in a first horizontal plane disposed along peripheral edges of the die pad; a ground bar downset from the first horizontal plane to a second horizontal plane between the leads and the die pad; a plurality of downset tie bars connecting the ground bar with the die pad; a plurality of ground wires bonding to both of the ground bar and the die pad; and a molding compound at least partially encapsulating the die pad, inner ends of the leads such that bottom surface of the die pad is exposed within the molding compound.
    Type: Application
    Filed: September 29, 2011
    Publication date: January 26, 2012
    Inventors: Nan-Jang Chen, Yau-Wai Wong
  • Patent number: 8102040
    Abstract: An integrated package system with die and package combination includes forming a leadframe having internal leads and external leads, encapsulating a first integrated circuit on the leadframe, and encapsulating a second integrated circuit over the first integrated circuit.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: January 24, 2012
    Assignee: Stats Chippac Ltd.
    Inventors: Seng Guan Chow, Ming Ying, Il Kwon Shim
  • Patent number: 8097935
    Abstract: A semiconductor package includes a leadframe having first and second level downset lead extensions, a quad flat nonleaded package (QFN) attached to the first level downset lead extension, and a flip chip die attached to the second level downset lead extension. Another embodiment of a semiconductor package includes a leadframe having a lead, a first quad flat nonleaded package (QFN) connected to the lead, and a second quad flat nonleaded package invertly connected to a top surface of the first quad flat nonleaded package, wherein the second quad flat nonleaded package is wirebonded to the lead. A third embodiment of a semiconductor package includes a leadframe having a lead with a first level downset lead extension, a quad flat nonleaded package (QFN) connected to the first level downset lead extension, and a first wirebondable die attached to a top or bottom surface of the quad flat nonleaded package.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: January 17, 2012
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Emmanuel A. Espiritu, Leo A. Merilo, Rachel L. Abinan, Dario S. Filoteo, Jr.
  • Patent number: 8093983
    Abstract: Disclosed herein are various embodiments of narrowbody coil isolators containing multiple coil transducers, where integrated circuits are not stacked vertically over the coil transducers. The disclosed coil isolators provide high voltage isolation and high voltage breakdown performance characteristics in small packages that provide a high degree of functionality at a low price.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 10, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Julie Fouquet, Dominique Ho
  • Publication number: 20120001306
    Abstract: A device is disclosed. The device includes a carrier substrate having first and second major surfaces. The first surface includes a die region and contact pads and the second surface includes package contacts. The carrier substrate includes a patterned lead frame which defines a line level with conductive traces and a via level with via contacts. The patterned lead frame provides interconnections between the contact pads and package contacts. The carrier substrate further includes a dielectric layer isolating the conductive traces and via contacts. The device includes a die mounted on the die region of the first surface.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 5, 2012
    Applicant: UNITED TEST AND ASSEMBLY CENTER LTD.
    Inventors: Chuen Khiang WANG, Nathapong SUTHIWONGSUNTHORN, Kriangsak SAE LE, Antonio Jr B DIMAANO, Catherine Bee Liang NG, Richard Te GAN, Kian Teng ENG
  • Publication number: 20120001308
    Abstract: In a semiconductor module, a first heat sink is disposed on a rear surface of a first semiconductor chip constituting an upper arm, and a second heat sink is disposed on a front surface of the first semiconductor chip through a first terminal. A third heat sink is disposed on a rear surface of a second semiconductor chip constituting a lower arm, and a fourth heat sink is disposed on a front surface of the second semiconductor chip through a second terminal. A connecting part for connecting between the upper arm and the lower arm is integral with the first terminal, and is connected to the third heat sink while being inclined relative to the first terminal.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 5, 2012
    Applicant: DENSO CORPORATION
    Inventors: Keita Fukutani, Kuniaki Mamitsu, Yasushi Ookura, Masayoshi Nishihata, Hiroyuki Wado, Syun Sugiura
  • Patent number: RE43443
    Abstract: In order to improve the package body cracking resistance of an LSI package at the reflow soldering and to provide both a leadframe suitable for fabricating the LSI package according to the flexible manufacturing system and an LSI using the leadframe, the adhered area between a semiconductor chip 2 and a resin is enlarged by making the external size of a die pad 3 smaller than that of the semiconductor chip to be mounted thereon. Moreover, a variety of semiconductor chips 2 having different external sizes can be mounted on the die pad 3 by cutting the leading ends of leads 5 to a suitable length in accordance with the external sizes of the semiconductor chips 2.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: June 5, 2012
    Assignees: Renesas Electronics Corporation, Hitachi ULSI Systems Co., Ltd.
    Inventors: Yujiro Kajihara, Kazunari Suzuki, Kunihiro Tsubosaki, Hiromichi Suzuki, Yoshinori Miyaki, Takahiro Naito, Sueo Kawai