Cross-section Geometry (epo) Patents (Class 257/E23.046)
  • Patent number: 7834436
    Abstract: An image processing system including an image processing device and a service providing device is provided. The image processing device includes a first processor and a first memory storing instructions that cause the image processing device to obtain parameters for receiving the service from the service providing device, request the service providing device to provide the service and implement a first or second function of the image processing device based on the parameters obtained from the parameter specifying unit. The service providing device includes a second processor and a second memory storing instructions that cause the service providing device to execute a service function to provide the service to the image processing device after receiving a request for the service from the image processing device.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: November 16, 2010
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Patent number: 7829982
    Abstract: A lead frame includes a frame body defining an internal region, a plurality of leads extending from the frame body, and first and second stages that are disposed in the internal region. The first and second stages are sloped and are parallel to a first line along which a primary stream of a molten resin runs, so that slope angles of the stages are not substantially changed by the injection of the molten resin into the cavity.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: November 9, 2010
    Assignee: Yamaha Corporation
    Inventors: Kenichi Shirasaka, Hiroshi Saitoh
  • Patent number: 7825505
    Abstract: In one embodiment, a semiconductor package is formed to include a tamper barrier that is positioned between at least a portion of the connection terminals of the semiconductor package and an edge of the semiconductor package.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: November 2, 2010
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Phillip Celaya, James P. Letterman, Jr.
  • Patent number: 7821124
    Abstract: Semiconductor die packages and methods of making them are disclosed. An exemplary package comprises a leadframe having a source lead and a gate lead, and a semiconductor die coupled to the source and gate leads at a first surface of the leadframe. The source lead has a protruding region at a second surface of the leadframe. A molding material is disposed around the semiconductor die, the gate lead, and the source lead such that a surface of the die and a surface of the protruding region are left exposed by the molding material. An exemplary method comprises obtaining the semiconductor die and leadframe, and forming a molding material around at least a portion of the leadframe and die such that a surface of the protruding region is exposed through the molding material.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: October 26, 2010
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Rajeev Joshi, Chung-Lin Wu
  • Patent number: 7816186
    Abstract: A method to manufacture a package that encases at least one integrated circuit device and the package so manufactured. The method includes the steps of (1) providing a leadframe having a die pad, leads, at least one ring circumscribing the die pad and disposed between the die pad and the leads, a plurality of tie bars projecting outwardly from the at least one ring, and at least one connecting bar electrically interconnecting and mechanically supporting the die pad to the ring; (2) affixing the at least one integrated circuit device to a first side of the die pad and electrically interconnecting the at least one integrated circuit device to the leads and to the at least one ring; (3) encapsulating the at least one integrated circuit device, the first side of the die pad and a first side of the ring in a molding resin while retaining an opposing second side of the ring external to said molding resin; and (4) severing the at least one connecting bar to electrically isolate the die pad from the ring.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: October 19, 2010
    Assignee: Unisem (Mauritius) Holdings Limited
    Inventors: Romarico S. San Antonio, Anang Subagio
  • Patent number: 7804159
    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: June 30, 2004
    Date of Patent: September 28, 2010
    Assignees: Renesas Electronics Corporation, Hitachi Yonezawa Electronics Co., Ltd.
    Inventor: Yoshihiko Shimanuki
  • Patent number: 7777310
    Abstract: An integrated circuit package system is provided including forming a paddle, an outer lead, and an inner lead between the paddle and the outer lead; forming a non-vertical paddle edge of the paddle and a non-vertical lead edge of the inner lead facing the non-vertical paddle edge; and encapsulating an integrated circuit die over the paddle.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: August 17, 2010
    Assignee: Stats Chippac Ltd.
    Inventors: Jeffrey D. Punzalan, Henry Descalzo Bathan, Zigmund Ramirez Camacho, Arnel Trasporto
  • Patent number: 7759806
    Abstract: An integrated circuit package system comprising forming a first device unit, having a first external interconnect, and a second device unit, having a second external interconnect, in an array configuration; mounting an integrated circuit die over the first device unit; connecting the integrated circuit die and the first external interconnect; and encapsulating the integrated circuit die, the first device unit, and the second device unit with both the first external interconnect and the second external interconnect partially exposed.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: July 20, 2010
    Assignee: Stats Chippac Ltd.
    Inventors: Lionel Chien Hui Tay, Zigmund Ramirez Camacho, Jeffrey D. Punzalan, Arnel Trasporto
  • Patent number: 7705444
    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 9, 2004
    Date of Patent: April 27, 2010
    Assignee: Rohm Co., Ltd.
    Inventor: Kazutaka Shibata
  • Patent number: 7701043
    Abstract: A connecting tape made of insulating material is adhered between a stage unit 21 and a stage unit 22. The stage units 21 and 22 form united stage units by that. Therefore, edge parts 211 and 221 of the stage units 21 and 22 are bound by the connecting tape 41 and of which movements are restricted. The united stage units 21 and 22 are securely supported by support units 31 and 32 and support units 33 and 34. As a result, number of the support units is reduced and inner lead 12 consumed.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: April 20, 2010
    Assignee: Yamaha Corporation
    Inventor: Shinya Ohkawa
  • Patent number: 7696082
    Abstract: A semiconductor device manufacturing method includes (a) bonding a first surface of a metal plate to a substrate, (b) forming a plurality of metal posts that are arranged in vertical and lateral directions in a plan view and include a first metal post and a second metal post, by partially etching the metal plate bonded to the substrate from a second surface of the metal plate, (c) fixing an integrated circuit (IC) element to the second surface of the first metal post, (d) coupling the second metal post and a pad terminal of the integrated circuit element via a conductive material, (e) resin-sealing the integrated circuit element, the metal posts, and the conductive material by providing a resin onto the substrate, and (f) removing the substrate from the resin and the first surfaces of the metal posts sealed using the resin.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: April 13, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Tetsuya Otsuki
  • Patent number: 7683461
    Abstract: An integrated circuit leadless package system includes forming a lead, attaching an integrated circuit die to the lead, and applying an encapsulant including a thin encapsulant region with a thinner section over the lead than a section over the integrated circuit die.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: March 23, 2010
    Assignee: Stats Chippac Ltd.
    Inventor: Keng Kiat Lau
  • Patent number: 7671452
    Abstract: A microarray package includes a leadframe having an array of contact posts, a die carried by the lead frame, and a plurality of bonding wires that electrically connect the die to the lead frame. An encapsulant is included that encapsulates the die, the bonding wire and the leadframe while leaving the distal ends of the contact posts exposed and substantially co-planar with a bottom surface of the microarray package. A plurality of pedestal members is plated to the distal end of a respective contact pad. A distal surface of each pedestal member protrudes outwardly beyond the bottom surface of the microarray package in the range of about 15 ?m to about 35 ?m.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: March 2, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Jaime Bayan, Nghia T. Tu
  • Patent number: 7663211
    Abstract: An integrated power device module having a leadframe structure with first and second spaced pads and one or more common source-drain leads located between said first and second pads, first and second transistors flip chip attached respectively to said first and second pads, wherein the source of said second transistor is electrically connected to said one or more common source-drain leads, and a first clip attached to the drain of said first transistor and electrically connected to said one or more common source-drain leads. In another embodiment a partially encapsulated power quad flat no-lead package having an exposed top thermal drain clip which is substantially perpendicular to said with a folded stud exposed top thermal drain clip, and an exposed thermal source pad.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: February 16, 2010
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Jonathan A. Noquil, Ruben Madrid
  • Patent number: 7652364
    Abstract: A printed circuit board includes at least two conductive traces, each having a first portion and a second portion. The printed circuit board also includes a cross-over section that includes two electrically conductive portions, each connecting electrically to the first and second portions of a corresponding one of the conductive traces, such that the conductive traces in their first portions lie on opposite sides of each other as they do in their second portions.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: January 26, 2010
    Assignee: Teradata US, Inc.
    Inventors: James L. Knighten, Norman Smith, Jun Fan
  • Patent number: 7638870
    Abstract: An integrated circuit package comprises an integrated circuit die comprising N adjacent pads, where N is an integer greater than three. A substrate comprises a first pair of traces including first and second traces and a second pair of traces including third and fourth traces. The first, second, third and fourth traces include first ends spaced from the integrated circuit die and second ends adjacent to the integrated circuit die. The first and second pairs of traces carry differential signals. The third trace of the second pair of traces has a first polarity and the fourth trace of the second pair of traces has a second polarity. The third trace is located on one side of the fourth trace at the first end and is located on an opposite side of the fourth trace at the second end. N connections independently connect the second ends to N pads.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: December 29, 2009
    Assignee: Marvell International Ltd.
    Inventor: Sehat Sutardja
  • Patent number: 7635910
    Abstract: A semiconductor package is disclosed. In one embodiment, the semiconductor package includes a leadframe including a chip position and a plurality of leadfingers. Each leadfinger includes a cutout in an inner edge providing a chip recess. The semiconductor package further includes a semiconductor chip located in the chip recess. The semiconductor chip has an active surface with a plurality of chip contact pads on each of which an electrically conductive bump is disposed. The inner portions of the leadfingers protrude into the chip position and are electrically connected to the chip contact pads by electrically conductive bumps.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: December 22, 2009
    Assignee: Infineon Technologies AG
    Inventors: Richard Mangapul Sinaga, Najib Khan Surattee, Mohamad Yazid
  • Publication number: 20090309207
    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: Application
    Filed: August 20, 2009
    Publication date: December 17, 2009
    Inventors: Seng Guan Chow, Ming Ying, IL Kwon Shim
  • Patent number: 7619307
    Abstract: A leadframe-based semiconductor package and a leadframe for the package are revealed. The semiconductor package primarily includes parts of the leadframe including one or more first leads, one or more second leads, and a supporting bar disposed between the first leads and the second leads and further includes a chip attached to the first leads, the second leads and the supporting bar, a plurality of bonding wires and an encapsulant. The supporting bar has an extended portion projecting from the first bonding finger and the second bonding finger and connected to a non-lead side of the encapsulant wherein the extended portion has an arched bend to absorb the pulling stresses and to block stress transmission. Cracks caused by delamination of the supporting bar will not be created during trimming the supporting bar along the non-lead side of the encapsulant. Moisture penetration along the cracks of the supporting bar to the die-bonding plane under the chip is desirably prevented.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: November 17, 2009
    Assignee: Powertech Technology Inc.
    Inventors: Chin-Fa Wang, Wan-Jung Hsieh, Yu-Mei Hsu
  • Patent number: 7598606
    Abstract: An integrated package system with die and package combination including 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: November 22, 2005
    Date of Patent: October 6, 2009
    Assignee: Stats Chippac Ltd.
    Inventors: Seng Guan Chow, Ming Ying, Il Kwon Shim
  • Patent number: 7579676
    Abstract: A leadless leadframe has a plurality of bottom leads and a plurality of top soldering pads formed in different layers. After encapsulation and before solder ball placement, a half-etching process is performed to remove the bottom leads to make the top soldering pads electrically isolated, exposed and embedded in the encapsulant for solder ball placement where the soldering area of the top soldering pads is defined without the need of solder mask(s) to solve the diffusion of solder balls on the leads during reflow.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: August 25, 2009
    Assignees: ChipMOS Technologies (Bermuda) Ltd., ChipMOS Technologies Inc.
    Inventor: Hung-Tsun Lin
  • Patent number: 7576418
    Abstract: A lead frame structure comprises a side rail, a first paddle, a second paddle, a plurality of leads, and an downset anchor bar. The first paddle is connected to the side rail via at least one first tie bar, and the second paddle is connected to the side rail via at least one-second tie bar. The first paddle and the second paddle separated from each other are used to define an area to support a chip. These leads set on the side rail expends toward to the chip supporting area. One end of the downset anchor bar is connected to the side rail, and the other end of the downset anchor bar has a protrusion portion which is between the first paddle and the second paddle and is downset from the side rail.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: August 18, 2009
    Assignee: Orient Semiconductor Electronics, Ltd.
    Inventors: Chia-Yu Chen, Ta-Lin Pong, En-Shou Chang, I-Chi Cheng, Chen-Ping Su
  • Publication number: 20090179314
    Abstract: An integrated circuit package system including forming a leadframe having a lead with a leadfinger support of a predetermined height, and attaching an integrated circuit die with an electrical interconnect at a predetermined collapse height determined by the predetermined height of the leadfinger support.
    Type: Application
    Filed: March 25, 2009
    Publication date: July 16, 2009
    Inventors: Henry D. Bathan, Zigmund Ramirez Camacho, Arnel Trasporto, Jeffrey D. Punzalan
  • Patent number: 7560804
    Abstract: Packages for an integrated circuit die and methods and leadframes for making such packages are disclosed. The package includes a die, a die pad, peripheral metal contacts, bond wires, and an encapsulant. The die pad and contacts are located at a lower surface of the package. The die pad and the contacts have side surfaces which include reentrant portions and asperities to engage the encapsulant. A method of making a package includes providing a metal leadframe having a die pad in a rectangular frame. Tabs extend from the frame toward the die pad. The die pad and tabs have side surfaces with reentrant portions and asperities. A die is attached to the die pad. The die is electrically connected to the tabs. An encapsulant is applied to the upper and side surfaces of the leadframe. Finally, the leadframe is cut in situ so that the die pad and tabs are severed from the frame, the sides of the package are formed, and the package is severed from the leadframe.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: July 14, 2009
    Assignee: Amkor Technology, Inc.
    Inventor: Thomas P. Glenn
  • Patent number: 7554179
    Abstract: A multi-leadframe semiconductor package and method of manufacture includes a first leadframe having a die pad and a plurality of contact leads around the periphery of the die pad. A die is attached to the die pad and electrically connected to the plurality of contact leads. A heat spreader leadframe having a heat spreader and a plurality of terminal leads around the periphery of the heat spreader is provided. The die pad is attached to the heat spreader, and the plurality of contact leads is attached to the plurality of terminal leads.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: June 30, 2009
    Assignee: Stats Chippac Ltd.
    Inventors: Il Kwon Shim, Seng Guan Chow, Jeffrey D. Punzalan, Pandi Chelvam Marimuthu
  • Patent number: 7535085
    Abstract: A semiconductor package having improved adhesiveness between the chip paddle and the package body and having improved ground-bonding of the chip paddle. A plurality of through-holes are formed in the chip paddle for increasing the bonding strength of encapsulation material in the package body. A plurality of tabs are formed in the chip paddle may also be used alone or in conjunction with the through-holes to further increase the bonding strength of the encapsulation material in the package body. The tabs provide additional area for the bonding site to ground wires from the semiconductor chip by increasing the length of the chip paddle.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 19, 2009
    Assignee: Amkor Technology, Inc.
    Inventor: Sung Sik Jang
  • Patent number: 7535084
    Abstract: A multi-chip package with a single die pad is provided. The multi-chip package includes a leadframe having a die pad and a plurality of leads surrounding the die pad. Each of the leads includes an upper lead, a lower lead and an intermediate lead substantially perpendicularly connected to the upper and lower leads, wherein the upper and lower leads are substantially parallel to the die pad. The upper and lower surfaces of the die pad are attached with upper and lower chips respectively. The upper chip is electrically connected to the upper surface of one part of the upper leads by a plurality of first bonding wires and the lower chip is electrically connected to the lower surfaces of the other part of the upper leads by a plurality of second bonding wires. A sealant is used to encapsulate the chips and bonding wires to protect these elements from damage.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: May 19, 2009
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventor: Hong Hyoun Kim
  • Patent number: 7525179
    Abstract: A semiconductor die package is disclosed. In one embodiment, the die package includes a semiconductor die including a first surface and a second surface, and a leadframe structure having a die attach region and a plurality of leads extending away from the die attach region. The die attach region includes one or more apertures. A molding material is around at least portions of the die attach region of the leadframe structure and the semiconductor die. The molding material is also within the one or more apertures.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: April 28, 2009
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Rajeev Joshi, Chung-Lin Wu
  • Patent number: 7476913
    Abstract: A light emitting device has a cup portion with a bottom surface opening, and one electrode of a light emitting element is connected to the cup portion. The other electrode of the light emitting element is connected to a lead set up from an inner space to outside the cup portion using the opening of the cup portion. Each electrode and lead of the light emitting device can be electrically connected without bonding wires. This prevents shadows or light unevenness from reflecting the shape of the bonding wire, thereby enhancing light-emission efficiency. As an alternative to setting up the lead from inside to the outside of the cup portion, the lead existing outside the cup portion and the other electrode are electrically connected via the bonding wire through the cup portion's opening. Thus, light outputted outside of the light emitting device is not intercepted by the bonding wire.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: January 13, 2009
    Assignees: Renesas Technology Corp., Hitachi Cable Precision Co., Ltd., Hitachi Cable, Ltd.
    Inventors: Hiroyuki Isobe, Gen Murakami, Toshikatsu Hiroe
  • Patent number: 7459770
    Abstract: A lead frame structure is provided, which includes a die pad having a first mounting portion and a second mounting portion separated from the first mounting portion by a gap. The first and second mounting portions are formed with corresponding blocking surfaces bordering the gap, so as to allow a flow rate of an encapsulating resin flowing through the gap during a molding process to be reduced by the blocking surfaces, such that different portions of the encapsulating resin respectively flowing above, in and below the die pad can have substantially the same flow rate, thereby preventing bonding wires from being deformed to cause short circuit and avoiding formation of voids. A semiconductor package with the lead frame structure is also provided.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: December 2, 2008
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Wen-Shan Tsai, Chien-Feng Wei, Hung-Wen Liu, Ming Cheng Lin, Lien-Chen Chiang
  • Patent number: 7449770
    Abstract: The invention relates to a substrate with slot. The substrate of the invention comprises an active surface and a plurality of metal plates. The metal plates are formed on the active surface. Each metal plate has a first surface and a second surface. The first surface is connected to the active surface. At least one metal plate has at least one slot formed on the second surface. Therefore, according to the substrate with slot of the invention, a resin for connecting a chip and the metal plates can entirely seal sides and corners of the chip so as to prevent water or dust from entering the chip and protect the chip.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: November 11, 2008
    Assignee: Himax Technologies, Inc.
    Inventors: Chiu-Shun Lin, Po-Chiang Tseng, Chen-Li Wang, Chia-Ying Lee
  • Patent number: 7372133
    Abstract: A method of forming a leadframe package, a leadframe package formed according to the method, and a system incorporating the leadframe package. The leadframe package includes: a metallization layer comprising a paddle portion and a contact portion including contact leads; a die mounted onto the paddle portion; wirebonds connected between the die and respective ones of the contact leads; an overmold encapsulating the die, the paddle portion, the contact leads and the wirebonds; and a stiffening element encapsulated in the overmold and unconnected to electrical pathways within the leadframe package.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: May 13, 2008
    Assignee: Intel Corporation
    Inventors: Saeed Shojaie, Brian Taggart, Dale Hackitt
  • Patent number: 7368810
    Abstract: Invertible microfeature device packages and associated methods for manufacture and use are disclosed. A package in accordance with one embodiment includes a microfeature device having a plurality of device contacts, and a conductive structure electrically connected to the contacts. The conductive structure can have first and second package contacts accessible for electrical coupling to at least one device external to the package, with the first package contacts accessible from a first direction and the second package contacts configured to receive solder balls and accessible from a second direction opposite the first. An encapsulant can be disposed adjacent to the microfeature device and the conductive structure and can have apertures aligned with the second package contacts to contain solder balls carried by the second package contacts.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: May 6, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Eric Tan Swee Seng, Lim Thiam Chye
  • Patent number: 7348664
    Abstract: A semiconductor device comprises a semiconductor die, first and second electrically-conductive leads and first and second thermal elements. The die comprises first and second surfaces. The first lead is held in contact with the first surface of the die by a compressive force. The first thermal element is held in contact with a portion of the first lead by a compressive force such that the first thermal element is capable of removing heat from the first lead and from the die. The second lead is held in contact with the second surface of the die by a compressive force. The second thermal element is held in contact with a portion of the second lead by a compressive force such that the second thermal element is capable of removing heat from the second lead and from the die.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: March 25, 2008
    Assignee: The Boeing Company
    Inventor: Seyd M. Sobhani
  • Patent number: 7338841
    Abstract: A method for fabricating a leadframe with encapsulant guide is provided, including forming a die attach paddle. Leads are formed around at least portions of the die attach paddle, and encapsulant guides are formed angled on a plurality of the leads to push the leads outwardly when an encapsulant flows therepast.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: March 4, 2008
    Assignee: Stats Chippac Ltd.
    Inventor: Keng Kiat Lau
  • Patent number: 7339261
    Abstract: A semiconductor device which permits reduction in the number of pins and in size thereof is provided.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: March 4, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Yoshihiko Shimanuki, Koji Tsuchiya
  • Patent number: 7332803
    Abstract: A circuit device is provided comprising leads and electrical circuitry. The circuit device has a first semiconductor element, a second semiconductor element, first leads electrically connected to the first semiconductor element or the second semiconductor element via fine metal wires and having an end thereof extending outwardly, second leads electrically connected via metal wires to both the first semiconductor element and the second semiconductor element to thus electrically connect the first and second semiconductor elements.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: February 19, 2008
    Assignees: Sanyo Electric Co., Ltd., Kanto Sanyo Semiconductors Co., Ltd.
    Inventors: Makoto Tsubonoya, Katsuhiko Shibusawa, Takashi Kitazawa
  • Patent number: 7332806
    Abstract: A semiconductor die package. It includes (a) a semiconductor die including a first surface and a second surface, (b) a source lead structure including protruding region having a major surface, the source lead structure being coupled to the first surface, (c) a gate lead structure being coupled to the first surface, and (d) a molding material around the source lead structure and the semiconductor die. The molding material exposes the second surface of the semiconductor die and the major surface of the source lead structure.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: February 19, 2008
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Rajeev Joshi, Chung-Lin Wu
  • Patent number: 7304385
    Abstract: A reinforced bonding pad structure includes a bondable metal layer defined on a stress-buffering dielectric layer, and an intermediate metal layer damascened in a first inter-metal dielectric (IMD) layer disposed under the stress-buffering dielectric layer. The intermediate metal layer is situated directly under the bondable metal layer and is electrically connected to the bondable metal layer with a plurality of via plugs integrated with the bondable metal layer. A metal frame is damascened in a second IMD layer under the first IMD layer. The metal frame is situated directly under the intermediate metal layer for counteracting mechanical stress exerted on the bondable metal layer during bonding, when the thickness of said stress-buffering dielectric layer is greater than 2000 angstroms, the damascened metal frame may be omitted. An active circuit portion including active circuit components of the integrated circuit is situated directly under the metal frame.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: December 4, 2007
    Assignee: United Microelectronics Corp.
    Inventors: Kun-Chih Wang, Bing-Chang Wu
  • Patent number: 7239008
    Abstract: A semiconductor apparatus includes a semiconductor pellet having electrodes thereon; a plurality of lead terminals, which electrically connect the electrodes of the semiconductor pellet to terminals formed on a substrate; and a molding member, which is filled around the semiconductor pellet and upper parts of the lead terminals. The plurality of lead terminals are shaped to be elongated strips and are arranged to extend out of the molding member toward the substrate.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: July 3, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Akio Nakamura
  • Patent number: 7202113
    Abstract: A wafer level bumpless method of making flip chip mounted semiconductor device packages is disclosed. The method includes the steps of solder mask coating a semiconductor die wafer frontside, processing the solder mask coating to reveal a plurality of gate contact and a plurality of source contacts, patterning a lead frame with target dimple areas, creating dimples in the lead frame corresponding to the gate contact and source contacts, printing a conductive epoxy on the lead frame in the dimples, curing the lead frame and semiconductor die wafer together, and dicing the wafer to form the semiconductor device packages.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: April 10, 2007
    Inventors: Ming Sun, Demei Gong
  • Publication number: 20060281225
    Abstract: A wafer level bumpless method of making flip chip mounted semiconductor device packages is disclosed. The method includes the steps of solder mask coating a semiconductor die wafer frontside, processing the solder mask coating to reveal a plurality of gate contact and a plurality of source contacts, patterning a lead frame with target dimple areas, creating dimples in the lead frame corresponding to the gate contact and source contacts, printing a conductive epoxy on the lead frame in the dimples, curing the lead frame and semiconductor die wafer together, and dicing the wafer to form the semiconductor device packages.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 14, 2006
    Inventors: Ming Sun, Demei Gong
  • Patent number: 7138707
    Abstract: A semiconductor package comprising a semiconductor die which has opposed first and second surfaces and at least first and second bond pads disposed on the second surface thereof. In addition to the semiconductor die, the semiconductor package includes at least one lead having opposed first and second surfaces, the first surface of the lead being electrically connected to the first bond pad. Also included in the semiconductor package is at least one conductive post having opposed first and second surfaces, the first surface of the conductive post being electrically connected to the second bond pad. A package body at least partially encapsulates the semiconductor die, the lead, and the conductive post such that the second surface of the lead and the second surface of the conductive post are exposed in a common exterior surface of the package body.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: November 21, 2006
    Assignee: Amkor Technology, Inc.
    Inventors: Seung Ju Lee, Won Chul Do, Kwang Eung Lee
  • Patent number: 7102216
    Abstract: A leadframe, a semiconductor package, and methods of making the same are disclosed. A leadframe includes leads having an inner end segment. A first subset of the leads include a recess in a first surface of the inner end segment. A second subset of the leads include a recess in an opposite second surface of the inner end segment. The first subset leads are in an alternating lateral pattern with the second subset leads such that the recess of adjacent inner end segments are oriented in opposite directions. The recesses separate adjacent inner end segments in a vertical direction, thereby eliminating or reducing a need for horizontal spacing between adjacent inner end segments. In a semiconductor package, a semiconductor chip is electrically connected by a bond wire to the inner end segment of the leads. The bond wire is bonded within the recess of alternating leads.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: September 5, 2006
    Assignee: Amkor Technology, Inc.
    Inventor: Donald Craig Foster
  • Patent number: 6984877
    Abstract: A semiconductor package such as a bumped chip carrier (BCC) package has projections extending from a lower surface of a resin encapsulant. Each projection has a concave depression formed thereon. By reflowing a solder layer, external terminals are formed to cover the projections. An interface between the terminals and the projections increases in area, relative to conventional structures, because of the concave depressions. Therefore, the adhesive strength between the terminals and the projections also increases, and, when the BCC package is mounted on a next-level circuit board through the terminals, solder joint is also improved in reliability.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: January 10, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chan-Suk Lee, Cheul-Joong Youn