Geometry Of Lead Frame (epo) Patents (Class 257/E23.043)
  • Patent number: 8466009
    Abstract: A method of fabricating a semiconductor package. In one embodiment the method includes forming a mold cavity about a portion of a first major surface of a leadframe, including about a mold lock opening extending through the leadframe between the first major surface and a second major surface. A spacer is inserted to fill at least a portion of the mold lock opening. The mold cavity is filled with an encapsulating material including filling a portion of the mold lock opening not occupied by the spacer.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: June 18, 2013
    Assignee: Infineon Technologies AG
    Inventors: Bernd Goller, Markus Dinkel, Wae Chet Yong, Teck Sim Lee, Boon Kian Lim
  • Patent number: 8455986
    Abstract: A semiconductor device featuring a semiconductor chip having a first main surface and a second, opposing main surface and including a MOSFET having source and gate electrodes formed on the first main surface and a drain electrode thereof formed on the second main surface, first and second conductive members acting as lead terminals for the source and gate electrodes, respectively, are disposed over the first main surface, each of the first and second conductive members has a part overlapped with the chip in a plan view, a sealing body sealing the chip and parts of the first and second conductive members such that a part of the first conductive member is projected outwardly from a first side surface of the sealing body and parts of the first and second conductive members are projected outwardly from the opposing second side surface of the sealing body in a plan view.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: June 4, 2013
    Assignees: Renesas Electronics Corporation, Hitachi Tohbu Semiconductor, Ltd.
    Inventors: Ryoichi Kajiwara, Masahiro Koizumi, Toshiaki Morita, Kazuya Takahashi, Munehisa Kishimoto, Shigeru Ishii, Toshinori Hirashima, Yasushi Takahashi, Toshiyuki Hata, Hiroshi Sato, Keiichi Ookawa
  • Patent number: 8436459
    Abstract: A wiring process between the provided power semiconductor module and the external circuit is simple. In the power semiconductor module, a power semiconductor element and a cylindrical conductor are joined to one surface of a lead frame. An opening of the cylindrical conductor is exposed at a surface of transfer molding resin. Sealing with the transfer molding resin is performed such that terminal portions of the lead frame protrude from peripheral side portions of the transfer molding resin. The cylindrical conductor is conductive with a control circuit. The terminal portions of the lead frame are each conductive with a main circuit.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: May 7, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Seiji Oka, Yoshiko Obiraki, Takeshi Oi
  • Patent number: 8424195
    Abstract: An apparatus for manufacturing a semiconductor package includes an index rail transferring a lead frame in forward and backward directions, the lead frame having a first surface and a second surface that is opposite to the first surface, a loader portion connected to an end portion of the index rail and supplying the lead frame to the index rail, a frame driving portion connected to the opposite end portion of the end portion of the index rail and rotating the lead frame around a normal to the first surface, and a die attach portion attaching a semiconductor chip on the lead frame supplied to the index rail.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: April 23, 2013
    Assignee: STS Semiconductor & Telecommunications Co., Ltd.
    Inventor: Sun Ha Hwang
  • Patent number: 8427844
    Abstract: Disclosed herein are various embodiments of widebody 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: April 23, 2013
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Dominique Ho, Julie Fouquet
  • Patent number: 8421209
    Abstract: A semiconductor device in which a semiconductor chip, a lead frame and metal wires for electrically connecting the lead frame are sealed with sealing resin. The lead frame has a plurality of lead terminal portions, a supporting portion for supporting the semiconductor chip, and hanging lead portions supporting the supporting portion. Each of the lead terminal portions adjacent to the hanging lead portion is a chamfered lead terminal portion having, at its head, a chamfered portion formed substantially in parallel with the hanging lead portion so as to avoid interference with the hanging lead portion.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: April 16, 2013
    Assignee: Rohm Co., Ltd.
    Inventor: Kazutaka Shibata
  • Patent number: 8409922
    Abstract: A semiconductor device has a substrate with a plurality of conductive vias formed through the substrate and first conductive layer formed over the substrate. A first semiconductor die is mounted over the substrate. A second semiconductor die can be mounted over the first semiconductor die. A leadframe interposer has a base plate and a plurality of base leads extending from the base plate. An etch-resistant conductive layer is formed over a surface of the base plate opposite the base leads. The leadframe is mounted to the substrate over the first semiconductor die. An encapsulant is deposited over the substrate and first semiconductor die. The base plate is removed while retaining the etch-resistant conductive layer and portion of the base plate opposite the base leads to electrically isolate the base leads. An interconnect structure is formed over a surface of the substrate opposite the base leads.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: April 2, 2013
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Zigmund R. Camacho, Dioscoro A. Merilo, Henry D. Bathan, Emmanuel A. Espiritu
  • Patent number: 8405194
    Abstract: A semiconductor device includes a semiconductor element, a first heat sink, a second heat sink, and a resin member. The semiconductor element has first and second surfaces. The first heat sink has a first heat radiation surface and a first end surface. The first end surface is coupled with the first surface. The second heat sink has a second heat radiation surface, the second end surface being opposite the second heat radiation surface, and a depressed section depressed toward the second heat radiation surface. The second surface of the semiconductor element is coupled with a bottom surface of the depressed section. The resin member is disposed in the depressed section and seals the semiconductor element, the first heat sink, and the second heat sink in such a manner that the first heat radiation surface is exposed outside the resin member.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: March 26, 2013
    Assignee: Denso Corporation
    Inventors: Masayoshi Nishihata, Yasushi Ookura
  • Patent number: 8399999
    Abstract: An electronic component including an electronic element, an electrode that is formed on a first surface of the electronic element, a first resin layer that is formed over the first surface of the electronic element, a wiring that is electrically connected to the electrode, a first portion of the wiring extending over the first resin layer, a second resin layer that is formed over the first resin layer and the wiring, the second resin layer having an opening, the opening overlapping the first portion of the wiring, an external terminal that is provided above the second resin layer, the external terminal being connected to the first portion of the wiring via the opening, and a third resin layer that is formed over the second resin layer, the third resin layer being provided around the external terminal.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: March 19, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Nobuaki Hashimoto
  • Patent number: 8395251
    Abstract: An integrated circuit package to package stacking system is provided including providing a first integrated circuit package, having a configured leadframe, providing a second integrated circuit package, having the configured leadframe, and forming an integrated circuit package pair by electrically connecting the configured leadframe of the first integrated circuit package to the configured leadframe of the second integrated circuit package.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: March 12, 2013
    Assignee: STATS ChipPac Ltd.
    Inventors: Il Kwon Shim, Seng Guan Chow, Jeffrey D. Punzalan, Byung Joon Han, Kambhampati Ramakrishna
  • Patent number: 8394675
    Abstract: A method of manufacturing an LED package includes mounting a large panel frame/substrate (LPF/S) having a substantially square shape to a ring. The LPF/S includes a plurality of die pads and a corresponding plurality of leads arranged in a matrix pattern. Each of the die pads includes a planar chip attach surface. An LED chip is attached to the planar chip attach surface of each of the die pads. An encapsulant material is applied overlaying the LED chips and at least a part of the LPF/S. Each die pad and corresponding leads are separated from the LPF/S to form individual LED packages. The steps of attaching the LED chips and applying the encapsulant material are performed while the LPF/S is mounted to the ring.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: March 12, 2013
    Assignee: Carsem (M) Sdn. Bhd.
    Inventors: Yong Lam Wai, Chan Boon Meng, Phang Hon Keat
  • Patent number: 8390103
    Abstract: Apparatuses are disclosed, such as those involving integrated circuit packaging. In one embodiment, a chip package includes: an encapsulation having a top surface and a bottom surface facing away from the top surface. The package further includes a leadframe including a plurality of leads. Each of the leads includes an exposed portion exposed through one of edges of the bottom surface of the encapsulation. The exposed portion has a length. At least one of exposed portions positioned along one of the edges of the bottom surface of the encapsulation has a length different from other exposed portions along the edge. The package can also include a dummy pad exposed through a corner of the bottom surface. The configuration can enhance solder joint reliability of the package when the package is attached to a printed circuit board.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: March 5, 2013
    Assignee: Analog Devices, Inc.
    Inventor: Ying Zhao
  • Patent number: 8390041
    Abstract: A module (1) includes a first functional device (2) and a second functional device (3). The first functional device (2) includes a base electrode, an emitter electrode and a collector electrode. The second functional device (3) includes at least one electrode. The module (1) further includes a conductive frame (4). One of the base electrode, the emitter electrode, and the collector electrode of the first functional device (2) is directly connected to the frame (4). The electrode of the second functional device (3) is also directly connected to the frame (4). The frame (4) includes a portion serving as a terminal for external connection.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: March 5, 2013
    Assignee: Rohm Co., Ltd.
    Inventor: Kenichi Yoshimochi
  • Patent number: 8362605
    Abstract: Some embodiments provide surface mount devices that include a first electrode comprising a chip carrier part, a second electrode disposed proximate to the chip carrier part, and a casing encasing a portion of the first and second electrodes. The first electrode can extend from the chip carrier part toward a perimeter of the casing, and the second electrode can extend away from the chip carrier part and projects outside of the casing. In extending away from the chip carrier part the first electrode divides into a plurality of leads separated by an aperture that join into a single first joined lead portion with a first width before projecting outside of the casing and maintains the first width outside of the casing. The second electrode can attain a second width prior to projecting outside of the casing and maintains the second width outside the casing.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: January 29, 2013
    Assignee: Cree Huizhou Opto Limited
    Inventors: Jian Hui Xie, Siu Cheong Cheng
  • Patent number: 8362516
    Abstract: An excellent light emitting element capable of improving problems caused by a material having high light-reflectivity and susceptible to electromigration, especially Al used for the electrode. FIG. 2A depicts semiconductor light emitting element having a first and second electrodes 20 and 30 disposed at a same surface side respectively on a first and second conductive type semiconductor layer 11 and 13. In the electrode disposing surface, the first electrode 20 comprises a first base part 23 and a first extended part 24 extending from the first base part, and a plurality of separated external connecting parts 31 of the second electrode 30 arranged side by side in extending direction of the first extended part.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: January 29, 2013
    Assignee: Nichia Corporation
    Inventors: Yoshiki Inoue, Masahiko Sano
  • Patent number: 8324721
    Abstract: An integrated circuit package that comprises a lead frame 105, an integrated circuit located on the lead frame and a shunt resistor coupled to the integrated circuit. The shunt resistor has a lower temperature coefficient of resistance than the lead frame, and the lead frame has a lower resistivity than the shunt resistor. The shunt resistor has a low-resistance coupling to external leads of the lead frame, or, the shunt resistor has its own integrated external leads.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: December 4, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Ubol Udompanyavit, Steve Kummerl
  • Patent number: 8294249
    Abstract: A lead frame package is disclosed where transmission signals are coupled into a die from a pair of lead frames through bonding wires that are separated by no more than three times a diameter of one of the bonding wires. In some embodiments, pairs of lead frames carrying differential transmission signals can be shielded by adjacent pairs of ground and power leads that are coupled into the die through bonding wires that are also separated by no more than three times a diameter of one of the bonding wires.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: October 23, 2012
    Assignee: Integrated Device Technology Inc.
    Inventors: David J. Pilling, Jitesh Shah, Diane Peng, Derek Huang
  • 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: 8232629
    Abstract: It is made for the layout of the mounting wiring at the time of mounting to become efficient by changing the structure of a semiconductor device. A first chip is mounted on a first die pad, and a second chip is also mounted on a second die pad. A first die pad and a second die pad do division structure in parallel to the first side and second side of sealing body 40. As a result, the pin for an output from a first chip and the pin for control of the circuit for a drive can make it able to project from a counter direction, and can set the wiring layout at the time of mounting as the minimum route.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: July 31, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Nobuya Koike, Atsushi Fujiki, Norio Kido, Yukihiro Sato, Hiroyuki Nakamura
  • 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: 8207597
    Abstract: An integrated circuit package system is provided including forming a lead frame including forming an inner lead having a planar surface, the inner lead extending inwardly from the lead frame and forming a stiffening structure integral with the lead frame for maintaining the planar surface; encapsulating the inner lead with an electrical connection to an integrated circuit die and with a first inner lead body of the inner lead exposed; and singulating the inner lead from the lead frame.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: June 26, 2012
    Assignee: STATS ChipPAC Ltd.
    Inventors: Jeffrey D. Punzalan, Henry D. Bathan, Il Kwon Shim, Zigmund Ramirez Camacho
  • Patent number: 8203200
    Abstract: A leadframe design for a diode or other semiconductor device that reduces stress on the device and provides increased heat dissipation is provided. According to various embodiments, the leadframe has a contoured profile including a recessed area and a raised surface within the recessed area. The surface supports the device such that the edges of the device extend past the surface. Also provided are device assemblies including the novel leadframes. In certain embodiments, the assemblies include one or more leadframes attached via a solder joint to a device. According to various embodiments, the leadframes are attached to the front side of the device, back side of the device or both. In particular embodiments, the device is a bypass diode for one or more solar cells in a solar module.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: June 19, 2012
    Assignee: Miasole
    Inventors: Whitfield G. Halstead, Steven Croft, Shawn Everson
  • Patent number: 8198134
    Abstract: An integrated power device module including a lead frame having first and second spaced pads, one or more common source-drain leads located between the first and second pads, and one or more drain leads located on the outside of the second pad. First and second transistors are flip chip attached respectively to the first and second pads, wherein the source of the second transistor is electrically connected to the one or more common source-drain leads. A first clip is attached to the drain of the first transistor and electrically connected to the one or more common source-drain leads. A second clip is attached to the drain of the second transistor and electrically connected to the one or more drain leads located on the outside of the second pad. Molding material encapsulates the lead frame, the transistors, and the clips to form the module.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: June 12, 2012
    Assignee: Fairchild Semiconductor Corporation
    Inventor: Jonathan A. Noquil
  • Patent number: 8188582
    Abstract: Provided are a lead frame, semiconductor device, and methods of manufacturing the same. The lead frame may include a die pad having at least three pair of sides parallel with each other, and a plurality of inner leads spaced apart from a circumference of the die pad, arranged in a radial shape with respect to a center of the die pad, and having the ends form inner lead connection surfaces parallel with at least one pair of sides of the die pad. In addition, there may be provided a semiconductor device having the lead frame. Accordingly, a semiconductor chip may be positioned on a die pad. The plurality of inner leads may be electrically connected to the semiconductor chip through wires. The semiconductor device may further include a molding resin for surrounding top and bottom surfaces of the lead frame and filling in an interior thereof.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: May 29, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jang-Mee Seo
  • Patent number: 8183607
    Abstract: A semiconductor device features a semiconductor chip including a MOSFET, a first electrode of the MOSFET disposed on an obverse surface of the chip, a second, control electrode of the MOSFET disposed on the obverse surface, a third electrode of the MOSFET disposed on a second, opposing surface of the chip, first, second, and third conductive members, each having top surface and opposing bottom surface, the first, second, and third conductive members connecting with the first, second, and third electrodes electrically, respectively, a sealing body having top and bottom surfaces and sealing parts of the first, second, and third conductive members, the first conductive member having first, second, and third contiguous portions, the first portion is positioned over the first electrode, the second is positioned between the first and second portions and the third portion is positioned under the obverse surface of the chip.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: May 22, 2012
    Assignees: Renesas Electronics Corporation, Hitachi Tohbu Semiconductor, Ltd.
    Inventors: Ryoichi Kajiwara, Masahiro Koizumi, Toshiaki Morita, Kazuya Takahashi, Munehisa Kishimoto, Shigeru Ishii, Toshinori Hirashima, Yasushi Takahashi, Toshiyuki Hata, Hiroshi Sato, Keiichi Ookawa
  • Patent number: 8120150
    Abstract: An integrated circuit package system includes: forming a die-attach paddle, a terminal pad, and an external interconnect with the external interconnect below the terminal pad; connecting an integrated circuit die with the terminal pad and the external interconnect; and forming an encapsulation, having a first side and a second side at an opposing side to the first side, surrounding the integrated circuit die with the terminal pad exposed at the first side and the external interconnect extending below the second side.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: February 21, 2012
    Assignee: Stats Chippac Ltd.
    Inventors: Guruprasad Badakere Govindaiah, Zigmund Ramirez Camacho, Jeffrey D. Punzalan, Henry Descalzo Bathan, Lionel Chien Hui Tay
  • Patent number: 8120152
    Abstract: A semiconductor package and related methods are described. In one embodiment, the package includes a die pad, a first plurality of leads disposed in a lead placement area around the die pad, a second plurality of leads disposed in corner regions of the lead placement area, a semiconductor chip on the die pad and coupled to each lead, and a package body. Each lead includes an upper sloped portion and a lower sloped portion. An average of surface areas of lower surfaces of each of the second plurality of leads is at least twice as large as an average of surface areas of lower surfaces of each of the first plurality of leads. The package body substantially covers the upper sloped portions of the leads. The lower sloped portions of the leads at least partially extend outwardly from a lower surface of the package body.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: February 21, 2012
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Pao-Huei Chang Chien, Ping-Cheng Hu, Chien-Wen Chen
  • Patent number: 8120151
    Abstract: An optical semiconductor device can have a first lead for an optical semiconductor chip to be mounted on and a second lead for joining to a wire extending from the optical semiconductor chip. The device can be configured to be capable of reducing the possibility of a break of the wire even under a thermal shock and the like. The optical semiconductor device can include a first lead for an optical semiconductor chip to be mounted on, a second lead for joining to a wire (for example, gold wire) extending from the optical semiconductor chip mounted on the first lead; a holder part for supporting the first lead and the second lead at two locations each; a lens part; and a light-transmitting sealing part. The second lead can be separated into two lead pieces with a predetermined gap (?0) therebetween as seen in a plan view, or with certain bend configurations as shown in side views, within the inside space of the holder part by which the second lead is supported at two locations.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: February 21, 2012
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Kazuhisa Ishi, Takaaki Fujii, Hiroaki Okuma, Aki Hiramoto
  • Patent number: 8115298
    Abstract: A semiconductor device is disclosed which includes a tab (5) for use in supporting a semiconductor chip (8), a seal section (12) as formed by sealing the semiconductor chip (8) with a resin material, more than one tab suspension lead (4) for support of the tab (5), a plurality of electrical leads (2) which have a to-be-connected portion as exposed to outer periphery on the back surface of the seal section (12) and a thickness reduced portion as formed to be thinner than said to-be-connected portion and which are provided with an inner groove (2e) and outer groove (2f) in a wire bonding surface (2d) as disposed within the seal section (12) of said to-be-connected portion, and wires (10) for electrical connection between the leads (2) and pads (7) of the semiconductor chip (8), wherein said thickness reduced portion of the leads (2) is covered by or coated with a sealing resin material while causing the wires (10) to be contacted with said to-be-connected portion at specified part lying midway between the outer
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: February 14, 2012
    Assignees: Renesas Electronics Corporation, Hitachi Yonezawa Electronics Co., Ltd.
    Inventor: Yoshihiko Shimanuki
  • Patent number: 8115214
    Abstract: Provided is a light emitting diode package and a method of manufacturing the same. The light emitting diode package includes a package main body with a cavity, a plurality of light emitting diode chips, a wire, and a plurality of lead frames. The plurality of light emitting diode chips are mounted in the cavity. The wire is connected to an electrode of at least one light emitting diode chip. The plurality of lead frames are formed in the cavity, and at least one lead frame is electrically connected to the light emitting diode chip or a plurality of wires.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: February 14, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventor: Won-Jin Son
  • 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
  • Patent number: 8097495
    Abstract: A leadframe for a semiconductor package is disclosed including electrical leads which extend from one side of the leadframe to an opposite side of the leadframe, where electrical connection may be made with the semiconductor die at the second side of the leadframe. The semiconductor die may be supported on the leads extending across the leadframe. The package may further include a spacer layer affixed to the electrical leads to fortify the semiconductor package and to prevent exposure of the electrical leads during the molding of the package.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: January 17, 2012
    Assignee: SanDisk Technologies Inc.
    Inventors: Ming Hsun Lee, Chih-Chin Liao, Cheemen Yu, Hem Takiar
  • 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: 8097496
    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: 8093707
    Abstract: Various semiconductor package arrangements and methods that improve the reliability of wire bonding a die to ground or other outside contacts are described. In one aspect, selected ground pads on the die are wire bonded to a bonding region located on the tie bar portion of the lead frame. The tie bar is connected to an exposed die attach pad that is downset from the bonding region of the tie bar. In some embodiments, the bonding region and the leads are at substantially the same elevation above the die and die attach pad. The die, bonding wires, and at least a portion of the lead frame can be encapsulated with a plastic encapsulant material while leaving a contact surface of the die attach pad exposed to facilitate electrically coupling the die attach pad to an external device.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 10, 2012
    Assignee: National Semiconductor Corporation
    Inventors: Shaw Wei Lee, Ein Sun Ng, Chue Siak Liu, Lee Han Meng @ Eugene Lee, Yee Kim Lee
  • 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
  • Patent number: 8084299
    Abstract: A method of manufacturing an electronic device is provided. The method comprises providing a carrier sheet, etching the lead frame material sheet to form a recess on a first surface of the lead frame material sheet, placing an electronic chip into the recess of the carrier sheet, and thereafter, selectively etching a second surface of the lead frame material sheet, the second surface being opposite to the first surface.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: December 27, 2011
    Assignee: Infineon Technologies AG
    Inventors: Chip King Tan, Boon Huan Gooi
  • Patent number: 8067272
    Abstract: A stackable multi-chip package system is provided including forming an external interconnect having a base and a tip, connecting a first integrated circuit die and the base, stacking a second integrated circuit die over the first integrated circuit die in an active side to active side configuration, connecting the second integrated circuit die and the base, and molding the first integrated circuit die, the second integrated circuit die, and the external interconnect partially exposed.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: November 29, 2011
    Assignee: Stats Chippac Ltd.
    Inventors: Young Cheol Kim, Koo Hong Lee, Jae Hak Yee, Ii Kwon Shim
  • Patent number: 8067271
    Abstract: An integrated circuit package system is provided including forming an external interconnect and a tie bar, forming a lead tip and a lead body of the external interconnect, forming a hole in the external interconnect, forming a slot in the tie bar, connecting an integrated circuit die and the external interconnect, and molding the external interconnect and the tie bar with the slot and the hole filled.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: November 29, 2011
    Assignee: Stats Chippac Ltd.
    Inventors: Byung Tai Do, Sung Uk Yang
  • Patent number: 8063479
    Abstract: A housing for a semiconductor component, in which the housing has a plurality of pins which are provided at the edge of the housing at distances, the pins each having a width, a thickness and a length. In order to create a housing for a semiconductor component whose characteristic frequencies are outside a range in which the characteristic frequencies of the housing negatively influence the semiconductor component, either at least one of the distances lies outside the range of 1.24 mm to 1.30 mm, at least one of the widths lies outside the range of 0.33 mm to 0.51 mm, at least one of the thicknesses lies outside the range of 0.23 to 0.32 mm, or at least one of the lengths lies outside the range of 2.05 to 4.12 mm.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: November 22, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Thorsten Wallisch, Christian Solf, Florian Grabmaier
  • Patent number: 8058720
    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: Grant
    Filed: November 19, 2008
    Date of Patent: November 15, 2011
    Assignee: Mediatek Inc.
    Inventors: Nan-Jang Chen, Yau-Wai Wong
  • Patent number: 8039320
    Abstract: A method of laying out traces for connection of bond pads of a semiconductor chip to a printed wiring board or the like and the layout. There is provided a substrate having top and bottom surfaces with a plurality of rows and columns of vias extending therethrough from the top surface to the bottom surface and having a solder ball secured at the bottom surface to each via. A plurality of pairs of traces is provided on the top surface, each trace of each pair of traces extending to a different one of the vias and extending to vias on a plurality of the rows and columns, each of the traces of each pair being spaced from the other trace by a ball pitch, being maximized for identity in length and being maximized for parallelism and spacing. Each of the traces of a pair is preferably be further maximized for identity in cross-sectional geometry. A differential signal pair is preferably applied to at least one of a pair of traces.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: October 18, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: William P. Stearns, Nozar Hassanzadeh
  • Patent number: 8026591
    Abstract: A semiconductor device in which a semiconductor chip, a lead frame and metal wires for electrically connecting the lead frame are sealed with sealing resin. The lead frame has a plurality of lead terminal portions, a supporting portion for supporting the semiconductor chip, and hanging lead portions supporting the supporting portion. Each of the lead terminal portions adjacent to the hanging lead portion is a chamfered lead terminal portion having, at its head, a chamfered portion formed substantially in parallel with the hanging lead portion so as to avoid interference with the hanging lead portion.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: September 27, 2011
    Assignee: Rohm Co., Ltd.
    Inventor: Kazutaka Shibata
  • Patent number: 8018037
    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: April 16, 2009
    Date of Patent: September 13, 2011
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Publication number: 20110215368
    Abstract: A wire-piercing light-emitting diode (LED) a lead frame having a first lead and a second lead. The first lead has a first transition portion and a first bottom portion with a first cutting member, and the second lead having a second transition portion and a second bottom portion with a second cutting member.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 8, 2011
    Inventor: Johnny Chen
  • Patent number: 7989932
    Abstract: A semiconductor device includes a lead frame including inner lead portion having inner leads connected to outer leads and relay inner leads not connected to the outer leads. A semiconductor element is mounted on a lower surface of the lead frame. Electrode pads of the semiconductor element are connected to the inner lead portion via metal wire. One end of the relay inner lead is connected to the electrode pad via the metal wire, and the other end is connected to the outer lead via a relay metal wire disposed to step over the inner lead.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: August 2, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yoshiaki Goto
  • Patent number: 7985991
    Abstract: A semiconductor device features a semiconductor substrate with a MOSFET, an electrode for main current of the MOSFET disposed on a first major surface of the substrate, an electrode for control of the MOSFET disposed on the first major surface, a rear plane electrode of the MOSFET disposed on a second, opposing surface of the substrate, and an external connection terminal electrically connected to the rear plane electrode, the external electrode contains a first part, a second part and a third part, the first part is positioned over the rear plane electrode, the third part is positioned below the second major surface and the third part is connected via the second part to the first part.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: July 26, 2011
    Assignees: Renesas Electronics Corporation, Hitachi Tohbu Semiconductor, Ltd.
    Inventors: Ryoichi Kajiwara, Masahiro Koizumi, Toshiaki Morita, Kazuya Takahashi, Munehisa Kishimoto, Shigeru Ishii, Toshinori Hirashima, Yasushi Takahashi, Toshiyuki Hata, Hiroshi Sato, Keiichi Ookawa
  • Patent number: 7977782
    Abstract: An integrated circuit package system includes: forming a lead having a both top contact portion and a bottom contact portion; connecting an integrated circuit die and the lead; and forming a package encapsulation, having a top side and a bottom side, over the integrated circuit die. The forming the package encapsulation includes partially exposing the top contact portion at the top side, and partially exposing the bottom contact portion along the bottom side with the bottom contact portion extending beyond a nonhorizontal portion of the package encapsulation.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: July 12, 2011
    Assignee: Stats Chippac Ltd.
    Inventors: Zigmund Ramirez Camacho, Jairus Legaspi Pisigan, Jose Alvin Caparas, Lionel Chien Hui Tay
  • Patent number: 7948091
    Abstract: A mounting structure for a semiconductor element is disclosed. The semiconductor element is bonded to a die pad through an adhesive film, which is formed by applying a predetermined amount of a paste adhesive onto the surface of the die pad and placing the semiconductor element on the die pad so as to press and spread the adhesive between the lower surface of the semiconductor element and the die pad. A wire extends between the semiconductor element and a terminal pad disposed around the die pad. The die pad includes plural grooves in the surface thereof. Each of the grooves extends from the center of the die pad toward a peripheral edge of the die pad and ends at the inner side of the peripheral edge of the die pad.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: May 24, 2011
    Assignees: Fujitsu Component Limited, Fujitsu Limited
    Inventors: Yuko Ohse, Osamu Daikuhara, Hideki Takauchi
  • Patent number: 7948067
    Abstract: In an embodiment, the invention provides a coil transducer isolator package comprising at least one lead frame, at least two integrated circuits (ICs) and a flex circuit comprising at least a first coil transducer. The first coil transducer comprises at least one metal coil. The coil transducer isolator package is fabricated such that no portion of the lead frame is physically located within a spatial volume extending substantially perpendicular to the at least one metal coil. The boundaries of the spatial volume are defined by a periphery of the at least one metal coil. At least one of the two ICs is at least partially located within the spatial volume extending substantially perpendicular to the at least one metal coil.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: May 24, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Julie E. Fouquet, Richard A. Baumgartner, Gary Tay, Dominique Ho