Moulds (epo) Patents (Class 257/E21.504)
  • Patent number: 7998794
    Abstract: This invention is directed to provide a method of manufacturing a resin molded semiconductor device with high reliability by preventing a resin leakage portion from occurring due to burrs on a lead frame formed by punching. The method of manufacturing the resin molded semiconductor device according to the invention includes bonding a semiconductor die on an island in a lead frame, electrically connecting the semiconductor die with the lead frame, resin-molding the lead frame on which the semiconductor die is bonded, and applying prior to the resin-molding a compressive pressure that is higher than a clamping pressure applied in the resin-molding to a region of the lead frame being clamped by molds in the resin-molding of the lead frame.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: August 16, 2011
    Assignees: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd.
    Inventors: Kiyoshi Saito, Yuji Umetani, Hideaki Yoshimi
  • Publication number: 20110183474
    Abstract: A technique that makes it possible to enhance the reliability of a module using PCB as its module substrate is provided. Solder connection of a single-chip component 43, an integrated chip component 44, and a semiconductor chip IC2 by Pb-free solder is carried out by heat treatment at a temperature below 280° C. using a heat block. Solder connection of a semiconductor chip IC1 by high-melting point solder is carried out by heat treatment at a temperature of 280° C. or higher using a hot jet. Thus, the semiconductor chip IC1 can be solder connected to PCB 38 using high-melting point solder without the following troubles: damage to the PCB 38 due to heat, for example, burning of solder resist; and peeling of prepreg from a core material. Therefore, the semiconductor chip IC1 can be mounted over the PCB 38 with high connection strength.
    Type: Application
    Filed: April 5, 2011
    Publication date: July 28, 2011
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Kunio Shigemura, Kenji Hanada, Masaki Nakanishi, Takafumi Nishita, Masayoshi Shinoda, Seiichi Tomoi
  • Publication number: 20110183471
    Abstract: An F-RAM package having a semiconductor die containing F-RAM circuitry, a mold compound, and a stress buffer layer that is at least partially located between the semiconductor die and the mold compound. Also, a method for making an F-RAM package that includes providing a semiconductor die containing F-RAM circuitry, forming a patterned stress buffer layer over the semiconductor die, and forming a mold compound coupled to the stress buffer layer.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 28, 2011
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Scott R. Summerfelt, Kezhakkedath R. Udayakumar, John P. Campbell, Hugh P. McAdams
  • Publication number: 20110171786
    Abstract: A mold resin sealing device for sealing a surface of a semiconductor wafer with a mold resin, includes: a first mold die; and a second mold die disposed opposite to the first mold die, the second mold die having a second surface; wherein the first mold die includes a first part having a first surface facing the second surface of the second mold die and having an opening in a central region of the first surface; and a first step-like movable part capable of moving in the opening in both directions so that the first step-like movable part moves toward and away from the second mold die.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 14, 2011
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Akira Sugai
  • Publication number: 20110165733
    Abstract: A method of making a microelectronic assembly can include molding a dielectric material around at least two conductive elements which project above a height of a substrate having a microelectronic element mounted thereon, so that remote surfaces of the conductive elements remain accessible and exposed within openings extending from an exterior surface of the molded dielectric material. The remote surfaces can be disposed at heights from said surface of said substrate which are lower or higher than a height of the exterior surface of the molded dielectric material from the substrate surface. The conductive elements can be arranged to simultaneously carry first and second different electric potentials: e.g., power, ground or signal potentials.
    Type: Application
    Filed: January 25, 2011
    Publication date: July 7, 2011
    Applicant: TESSERA, INC.
    Inventors: Belgacem Haba, Teck-Gyu Kang, Ilyas Mohammed, Ellis Chau
  • Publication number: 20110165731
    Abstract: An improved semiconductor device package is manufactured by attaching semiconductor chips (130) on an insulating substrate (101) having contact pads (103). A mold is provided, which has a top portion (210) with metal protrusions (202) at locations matching the pad locations. The protrusions are shaped as truncated cones. The substrate and the chips are loaded onto the bottom mold portion (310); the mold is closed by clamping the top portion onto the bottom portion so that the protrusions approach the contact pads. Encapsulation compound is introduced into the cavity and the protrusions create apertures through the encapsulation compound towards the pad locations.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mark A. GERBER, David N. WALTER
  • Patent number: 7968377
    Abstract: An integrated circuit package system is provided. A protruding pad is formed on a leadframe. A die is attached to the leadframe. The die is electrically connected to the leadframe. At least portions of the leadframe, the protruding pad, and the die are encapsulated in an encapsulant.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: June 28, 2011
    Assignee: Stats Chippac Ltd.
    Inventors: Seng Guan Chow, Ming Ying, Il Kwon Shim, Roger Emigh
  • Patent number: 7943430
    Abstract: A semiconductor device and a method for manufacturing the same are described. The semiconductor device comprises: a heat sink having at least one opening passing through the heat sink; at least one semiconductor chip disposed in the opening, wherein the semiconductor chip includes a first side and a second side on opposite sides; an electricity conducting thin film filling in a first depth portion of the opening, wherein the second side of the semiconductor chip is embedded in the electricity conducting thin film; a heat conducting thick film filling in a second depth portion of the opening, wherein the electricity conducting thin film is directly connected with the heat conducting thick film; at least one wire electrically connecting the semiconductor chip and an external circuit; and an encapsulant covering a portion of the heat sink, the semiconductor chip, the wire and an exposed portion of the electricity conducting thin film.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: May 17, 2011
    Inventor: Kuan-Chun Chen
  • Patent number: 7944034
    Abstract: A semiconductor device with a sheet-like insulating substrate (101) integral with two or more patterned layers of conductive lines and vias, a chip attached to an assembly site, and contact pads (103) in pad locations has an encapsulated region on the top surface of the substrate, extending to the edge of the substrate, enclosing the chip, and having contact apertures (703) at the pad locations for external communication with the pad metal surfaces. The apertures may have not-smooth sidewall surfaces and may be filled with solder material (704) to contact the pads. Metal-filled surface grooves (710) in the encapsulated region, with smooth groove bottom and sidewalls, are selected to serve as customized routing interconnections, or redistribution lines, between selected apertures and thus to facilitate the coupling with another semiconductor device to form a package-on-package assembly.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: May 17, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Mark A. Gerber, David N. Walter
  • Patent number: 7943432
    Abstract: A cleaning sheet with frame for cleaning a molding die comprising a cleaning heat main body that covers the entire mating surface of a molding die and a reinforcing frame which can be disposed along the peripheral edge to the outside of the plural cavities of the mating surface of the molding die, the cleaning sheet main body being formed with first through holes at positions corresponding to the cavities of the molding die, air vent slits and flow cavity recesses at positions corresponding to the air vents of the cavities, second through holes at positions corresponding to the pots of the molding die, and slits at positions corresponding to the runners of the molding die, thereby capable of improving the cleaning effect of the molding die and shortening the time for the cleaning operation to improve the productivity.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 17, 2011
    Assignees: Renesas Electronics Corporation, Hitachi Yonezawa Electronics Co., Ltd.
    Inventor: Kiyoshi Tsuchida
  • Patent number: 7927923
    Abstract: Flow diverting structures for preferentially impeding, redirecting or both impeding and redirecting the flow of flowable encapsulant material, such as molding compound, proximate a selected surface or surfaces of a semiconductor die or dice during encapsulation are disclosed. Flow diverting structures may be included in or associated with one or more portions of a lead frame, such as a paddle, tie bars, or lead fingers. Flow diverting structures may also be inserted into a mold in association with semiconductor dice carried on non-lead frame substrates, such as interposers and circuit boards, to preferentially impede, redirect or both impede and redirect the flow of molding compound flowing between and over the semiconductor dice.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 19, 2011
    Assignee: Micron Technology, Inc.
    Inventor: Stephen L. James
  • Patent number: 7919361
    Abstract: The present disclosure provides a very thin semiconductor package including a leadframe with a die-attach pad and a plurality of lead terminals, a die attached to the die-attach pad and electrically connected to the lead terminals via bonding wires, a position member disposed upon the die and/or die-attach pad, and a molding material encapsulating the leadframe, the die, and the position member together to form the semiconductor package. The method for manufacturing a very thin semiconductor package includes disposing a first position member on one side of the die-attach pad of a leadframe, attaching a die onto the opposite side of the die-attach pad, optionally disposing a second position member on top of the die, electrically connecting the die to the lead terminals of the leadframe, and encapsulating the leadframe, the die, and the position member(s) together to form the very thin semiconductor package.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: April 5, 2011
    Assignee: STMicroelectronics Asia Pacific Pte. Ltd.
    Inventors: Kum-weng Loo, Chek-lim Kho, Jing-en Luan
  • Patent number: 7919845
    Abstract: Formation of a hybrid integrated circuit device is described. A design for the integrated circuit is obtained and separated into at least two portions responsive to component sizes. A first die is formed for a first portion of the hybrid integrated circuit device using at least in part a first minimum dimension lithography. A second die is formed for a second portion of the device using at least in part a second minimum dimension lithography, where the second die has the second minimum dimension lithography as a smallest lithography used for the forming of the second die. The first die and the second die are attached to one another via coupling interconnects respectively thereof to provide the hybrid integrated circuit device.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: April 5, 2011
    Assignee: Xilinx, Inc.
    Inventors: James Karp, Steven P. Young, Bernard J. New, Scott S. Nance, Patrick J. Crotty
  • Publication number: 20110074016
    Abstract: The size and thickness of a semiconductor device are reduced. A semiconductor package with a flip chip bonding structure includes: a semiconductor chip having a main surface with multiple electrode pads formed therein and a back surface located on the opposite side thereto; four lead terminals each having an upper surface with the semiconductor chip placed thereover and a lower surface located on the opposite side thereto; and a sealing body having a main surface and a back surface located on the opposite side thereto. In this semiconductor package, the distance between adjacent first lower surfaces of the four lead terminals exposed in the back surface of the sealing body is made longer than the distance between adjacent upper surfaces thereof.
    Type: Application
    Filed: August 15, 2010
    Publication date: March 31, 2011
    Inventor: Hiroaki NARITA
  • Publication number: 20110068445
    Abstract: A chip package and a process thereof are provided. The chip package includes a lead frame, a heat sink, a chip and a molding compound. The lead frame includes a chip pad and a plurality of leads, wherein the chip pad has a first surface and a second surface opposite thereto. The heat sink has a third surface and a fourth surface opposite thereto, wherein the lead frame is disposed on the third surface of the heat sink through the second surface of the chip pad, and the fourth surface of the heat sink is exposed. The chip is disposed on the first surface of the chip pad and electrically connected to each of the chip pad and the leads. The molding compound encapsulates the chip, the chip pad, the heat sink and a portion of each of the leads.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 24, 2011
    Applicant: Novatek Microelectronics Corp.
    Inventor: Tai-Hung Lin
  • Publication number: 20110068457
    Abstract: This invention discloses a semiconductor package with adhesive material pre-printed on the lead frame and chip, and the manufacturing method. The adhesive material is applied onto the chip carrier and the pin of the lead frame and also on the front electrode of the semiconductor chip via pre-printing. The back of the semiconductor chip is adhered on the chip carrier, and the front electrode of the semiconductor chip and the pin are connected respectively with a metal connector. The size, shape and thickness of the adhesive material are applied according to different application requirements according to size and shapes of the contact zone of the semiconductor chip and the metal connector. Particularly, the adhesive zones are formed by pre-printing the adhesive material thus significantly enhance the quality and performance of semiconductor products, and improves the productivity.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 24, 2011
    Inventors: Xiaotian Zhang, Jun Lu, Kai Liu
  • Publication number: 20110049691
    Abstract: A semiconductor package includes a chip, a carrier, a bonding wire and a molding compound. The chip includes a pad. The carrier includes a finger and has an upper surface and a lower surface opposite to the upper surface, wherein the upper surface supports the chip. The bonding wire is extended from the finger to the pad for electrically connecting the chip to the carrier, wherein the bonding wire defines a projection portion on the upper surface of the carrier, a straight line is defined to pass through the finger and pad, there is a predetermined angle between the tangent line of the projection portion at the finger and the straight line. The molding compound seals the chip and the bonding wire, and covers the carrier.
    Type: Application
    Filed: March 23, 2010
    Publication date: March 3, 2011
    Applicant: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventor: Sheng Wei LIN
  • Patent number: 7897436
    Abstract: A process for packaging a number of micro-components on the same substrate wafer, in which each micro-component is enclosed in a cavity. This process includes making a covering plate comprising a re-useable matrix, a polymer layer, and a metal layer; covering the wafer with the covering plate; applying a contact pressure equal to at least one bar on the covering plate and on the wafer; heating the metal layer during pressing until sealing is obtained, each cavity thus being provided with a sealing area and closed by metal layer; and dissolving the polymer to recover and recycle the matrix.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: March 1, 2011
    Assignees: STMicroelectronics, S.A., Commissariat A l'Energie Atomique
    Inventors: Guillaume Bouche, Bernard Andre, Nicolas Sillon
  • Patent number: 7871863
    Abstract: An integrated circuit package system is provided forming a lead from a padless lead frame, and encapsulating the lead for supporting an integrated circuit die with a first molding compound for encapsulation with a second molding compound.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: January 18, 2011
    Assignee: Stats Chippac Ltd.
    Inventors: Zigmund Ramirez Camacho, Jose Alvin Caparas, Arnel Senosa Trasporto, Jeffrey D. Punzalan
  • Patent number: 7863761
    Abstract: An integrated circuit package system comprising: providing a substrate; attaching an integrated circuit die over the substrate; attaching a connector to the integrated circuit die and the substrate; and forming an encapsulant over the substrate, the integrated circuit die, and the connector and minimizing ambient gas deformation of the substrate to keep the connector from touching another connector.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: January 4, 2011
    Assignee: Stats Chippac Ltd.
    Inventors: Dal Jae Lee, Nam Ju Cho, Soo-San Park, Jaepil Kim, Sungpil Hur, Hyeong Kug Jin, JongMin Han, SungJae Lim, HyoungChul Kwon
  • Patent number: 7863726
    Abstract: A method of manufacture of an integrated circuit package system includes: forming a package substrate with a top substrate side and a bottom substrate side; forming a corner contact in a first corner of the bottom substrate side, the corner contact extending to a substrate edge of the package substrate; mounting an integrated circuit device over the top substrate side; connecting an electrical interconnect between the integrated circuit device and the top substrate side; and forming a package encapsulation over the top substrate side, the integrated circuit device, and the electrical interconnect.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: January 4, 2011
    Assignee: Stats Chippac Ltd.
    Inventors: Seng Guan Chow, Tae Hoan Jang
  • Publication number: 20100327421
    Abstract: A protective structure is provided on a substrate to which a semiconductor die is attached. The protective structure surrounds the die and reduces the thermo-mechanical stresses to which the die is subject. The die is protected against cracking, warping, and delamination.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: STMICROELECTRONICS ASIA PACIFIC PTE. LTD.
    Inventor: Jing-En Luan
  • Publication number: 20100327427
    Abstract: A semiconductor device includes a wiring layer, a semiconductor chip which is arranged on the wiring layer with a gap there between, the semiconductor chip being electrically connected to the wiring layer through a connecting portion, a first sealing member which is filled in a space between the wiring layer and the semiconductor chip, and a second sealing member which coats the semiconductor chip. The first sealing member and the second sealing member include same organic resin, the organic resin including inorganic filler. The second sealing member has larger content of inorganic filler than the first sealing member.
    Type: Application
    Filed: May 4, 2010
    Publication date: December 30, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Takehiro Kimura, Yoichiro Kurita
  • Patent number: 7859092
    Abstract: A package structure includes a substrate, a first die and at least one second die. The substrate includes a first pair of parallel edges and a second pair of parallel edges. The first die is mounted over the substrate. The first die includes a third pair of parallel edges and a fourth pair of parallel edges, wherein the third pair of parallel edges and the fourth pair of parallel edges are not parallel to the first pair of parallel edges and the second pair of parallel edges, respectively. The at least one second die is mounted over the first die.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: December 28, 2010
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Benson Liu, Hsien-Wei Chen, Shin-Puu Jeng, Hao-Yi Tsai
  • Patent number: 7858408
    Abstract: Overmolded lenses and certain fabrication techniques are described for LED structures. In one embodiment, thin YAG phosphor plates are formed and affixed over blue LEDs mounted on a submount wafer. A clear lens is then molded over each LED structure during a single molding process. The LEDs are then separated from the wafer. The molded lens may include red phosphor to generate a warmer white light. In another embodiment, the phosphor plates are first temporarily mounted on a backplate, and a lens containing a red phosphor is molded over the phosphor plates. The plates with overmolded lenses are removed from the backplate and affixed to the top of an energizing LED. A clear lens is then molded over each LED structure. The shape of the molded phosphor-loaded lenses may be designed to improve the color vs. angle uniformity. Multiple dies may be encapsulated by a single lens. In another embodiment, a prefabricated collimating lens is glued to the flat top of an overmolded lens.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: December 28, 2010
    Assignees: Koninklijke Philips Electronics N.V., Philips Lumilends Lighting Company, LLC
    Inventors: Gerd O. Mueller, Regina Mueller-Mach, Grigoriy Basin, Robert Scott West, Paul S. Martin, Tze-Sen Lim, Stefan Eberle
  • Publication number: 20100320592
    Abstract: A semiconductor device in which overall thickness is reduced by suppressing the rising of a metal thin line and connection reliability is enhanced at the joint of metal thin line and other member during resin sealing. A method for manufacturing such semiconductor device is also provided. The semiconductor device (10A) comprises electrodes (12A, 12B, 12C), a semiconductor chip (13) bonded to the upper surface of the electrode (12A) formed in the shape of island, a metal thin line (15A) connecting the semiconductor chip (13) and the electrode (12C), a metal thin line (15B) connecting the semiconductor chip (13) and the electrode (12B), and a sealing resin (11) supporting those elements mechanically by sealing them integrally. The metal thin lines (15A, 15B) have planar shape curved convexly toward the upstream of the flow if the sealing resin (11) to be injected.
    Type: Application
    Filed: September 27, 2007
    Publication date: December 23, 2010
    Applicants: SANYO Electric Co., Ltd., SANYO Semiconductor Co., Ltd.
    Inventors: Yasuhiro Takano, Hirokazu Fukuda, Atsushi Mashita
  • Publication number: 20100314635
    Abstract: A chip arrangement for an optoelectronic component includes at least one semiconductor chip which emits electromagnetic radiation, and a connection arrangement which includes planes that are electrically insulated from one another, at least one plane having a cavity and at least one plane being a heat dissipating plane, wherein at least two electrically insulated conductors are arranged in at least the two planes, the semiconductor chip is arranged within the cavity and has at least two connection locations, and each of the connection locations is electrically conductively connected to a respective one of the conductors.
    Type: Application
    Filed: November 21, 2008
    Publication date: December 16, 2010
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Herbert Brunner, Steffen Koehler, Raimund Schwarz, Stefan Grotsch
  • Publication number: 20100317152
    Abstract: A method for assembling a stackable semiconductor package includes providing a substrate having a first surface and a second surface. The first surface includes bond pads and one or more die pads. Conductive bumps are formed on the bond pads and one or more semiconductor dies are attached to the one or more die pads. The first surface of the substrate, the semiconductor dies and the conductive bumps are placed in a side-gate molding cast and a mold material is supplied to the first surface of the substrate to form a stackable semiconductor package. Similarly formed semiconductor packages may be stacked, one on another to form a stacked semiconductor package.
    Type: Application
    Filed: July 8, 2009
    Publication date: December 16, 2010
    Applicant: FREESCALE SEMICONDUCTOR, INC
    Inventors: Zhigang BAI, Weimin Chen, Zhijie Wang
  • Publication number: 20100308474
    Abstract: A substrate (1) and a semiconductor chip (5) are connected by means of flip-chip interconnection. Around connecting pads (3) of the substrate (1) and input/output terminals (10) of the semiconductor chip (5), an underfill material (7) is injected. The underfill material (7) is a composite material of filler and resin in which the maximum particle diameter of the filler is 5 ?m or below and whose filler content is 40 to 60 wt %. Also, a first main surface of the substrate (1), which is not covered with the underfill material (7), and the side surfaces of the semiconductor chip (5) are encapsulated with a molding material (8). The molding material (8) is a composite material of filler and resin whose filler content is over 75 wt % and in which the glass transition temperature of the resin is over 180° C. An integrated body of the substrate (1) and the semiconductor chip (5), which are covered with the molding material (8), is thinned from above and below.
    Type: Application
    Filed: February 29, 2008
    Publication date: December 9, 2010
    Inventors: Akinobu Shibuya, Koichi Takemura, Akira Ouchi, Tomoo Murakami
  • Publication number: 20100304530
    Abstract: Provided is a method of forming a semiconductor package. In the method, a first package including a first chip on a first substrate is formed, a second package including a second chip on a second substrate is formed, a moulding cap provided with a via hole and a recess structure configured to receive the first chip is formed, and the second package is provided on the first package with the moulding cap being therebetween such that the recess receives the first chip. The via hole and the recess structure are simultaneously foamed.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 2, 2010
    Inventors: Choongbin Yim, Seungkon Mok, Donghan Kim, Jin-Woo Park, PaLan Lee, Mi-yeon Kim
  • Publication number: 20100291739
    Abstract: The present invention relates to a dicing die bonding film, which is able to maintain good workability and reliability in any semiconductor packaging process, such as adhesive property, gap filling property and pick-up property, while controlling burr incidence in a dicing process and thus contamination of die, and a dicing method. Specifically, the present invention is characterized by optimizing tensile characteristics of the dicing die bonding film, or carrying out the dicing on the parts of the die bonding film in the dicing process and separating it through an expanding process. Therefore, the present invention may regulate physical properties of films so as to have the maximized adhesive property, pick-up property and gap filling property without any specific restriction, while controlling burr incidence in the dicing process and contamination of die. As a result, workability and reliability in a packaging process may be excellently maintained.
    Type: Application
    Filed: October 15, 2008
    Publication date: November 18, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Jong Wan Hong, Jang Soon Kim, Hyo Soon Park, Hyun Jee Yoo, Dong Han Kho, Hyo Sook Joo
  • Publication number: 20100289134
    Abstract: A method of manufacture of an integrated circuit packaging system includes: fabricating a base package substrate having a component side and a system side; coupling stacking interconnects on the component side; and forming an integrated circuit receptacle, for receiving an integrated circuit device, by molding a reinforced encapsulant on the component side and exposing a portion of the stacking interconnects.
    Type: Application
    Filed: May 11, 2010
    Publication date: November 18, 2010
    Inventors: Seng Guan Chow, Il Kwon Shim, Heap Hoe Kuan, Youngcheol Kim
  • Publication number: 20100285638
    Abstract: A method for making a quad flat non-lead (QFN) semiconductor package includes half etching a first side of a carrier to form top portions of a lead array and a die attach surface of a die attach pad, wherein the lead array includes at least one inner terminal lead disposed adjacent to the die attach pad, at least one extended, outer terminal lead disposed along periphery of the QFN semiconductor package, and at least one intermediary terminal disposed between the inner terminal lead and the extended, outer terminal lead, wherein the intermediary terminal is disposed between the inner terminal lead and the extended, outer terminal lead.
    Type: Application
    Filed: July 21, 2010
    Publication date: November 11, 2010
    Inventors: Tung-Hsien Hsieh, Nan-Cheng Chen
  • Patent number: 7824937
    Abstract: A method for manufacturing a solid element device, which comprises providing a glass-containing Al2O3 substrate (3) having a GaN based LED element (2) placed thereon, setting a P2O5—ZnO based low melting point glass in parallel with the substrate, and carrying out a press working at a temperature of 415° C. or higher under a pressure of 60 kgf in a nitrogen atmosphere. Under these conditions, the low melting point glass has a viscosity of 109 poise, and is adhered via an oxide formed on the surface of the glass-containing Al2O3 substrate (3). A solid element device manufactured by the above method can be manufactured through a glass sealing working at a low temperature and also has a highly reliable sealing structure.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: November 2, 2010
    Assignees: Toyoda Gosei Co., Ltd., Sumita Optical Glass Inc.
    Inventors: Yoshinobu Suehiro, Mitsuhiro Inoue, Hideaki Kato, Kunihiro Hadame, Ryoichi Tohmon, Satoshi Wada, Koichi Ota, Kazuya Aida, Hiroki Watanabe, Yoshinori Yamamoto, Masaaki Ohtsuka, Naruhito Sawanobori
  • Patent number: 7821117
    Abstract: A semiconductor package (20) includes an organic substrate (24) and a semiconductor die subassembly (22). A method (50) for making the semiconductor package (20) entails providing (52) the organic substrate (24) having an opening (26) and electrical contacts (36). The subassembly (22) is formed by producing (64) a semiconductor die (28) and bonding it to a platform layer (30). An elastomeric adhesive (38) is utilized (92) to secure the subassembly (22) in the opening (26). Electrical interconnects (32) are provided (106) between the semiconductor die (28) and the electrical contacts (36) of the organic substrate (24). The organic substrate (24), semiconductor die (28), elastomeric adhesive (38), and electrical interconnects (32) are encapsulated (114) in a packaging material (46). The elastomeric adhesive (38) provides mechanical anchoring of the subassembly (22) to the substrate (24) and provides mechanical stress isolation of the semiconductor die (28) within the semiconductor package (20).
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: October 26, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Clem H. Brown, Vasile R. Thompson
  • Patent number: 7816155
    Abstract: A method for mounting a semiconductor device onto a composite substrate, including a submount and a heat sink, is described. According to one aspect of the invention, the materials for the submount and the heat sink are chosen so that the value of coefficient of thermal expansion of the semiconductor device is in between the values of coefficients of thermal expansion of the materials of the submount and the heat sink, the thickness of the submount being chosen so as to equalize thermal expansion of the semiconductor device to that of the surface of the submount the device is mounted on. According to another aspect of the invention, the semiconductor device, the submount, and the heat sink are soldered into a stack at a single step of heating, which facilitates reduction of residual post-soldering stresses.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: October 19, 2010
    Assignee: JDS Uniphase Corporation
    Inventors: Andre Wong, Sukbhir Bajwa
  • Publication number: 20100252923
    Abstract: A semiconductor device of the present invention includes a semiconductor chip formed with an electrode pad on a front side thereof, a wiring board having a wiring pattern, the wiring board having a front side opposing the back side of the semiconductor chip, a wire for electrically connecting the electrode pad of the semiconductor chip with the wiring pattern of the wiring board, an external terminal arranged on the back side of the wiring board for electrical connection with the electrode pad through the wire and the wiring pattern, and a sealant for fixing the semiconductor chip on the front side of the wiring board so as to form a hollow which is continuous to a portion straddling the entirety of the back side of the semiconductor chip and the front side of the wiring board, and continuous to a portion adjacent to at least one outer peripheral surface of the semiconductor chip except for the back side of the same. The wiring board includes a throughhole in communication with the hollow.
    Type: Application
    Filed: March 18, 2010
    Publication date: October 7, 2010
    Inventors: Mitsuhisa WATANABE, Keiyo Kusanagi, Koichi Hatakeyama
  • Publication number: 20100255639
    Abstract: A method for manufacturing a semiconductor device includes mounting a first chip over a first area of a chip mounting section of a lead frame and mounting a second chip over a second area of the chip mounting section, wherein the second area is adjacent to the first area via the slit. The chip mounting section is disposed on a flat heating jig. First pads of the first chip are connected with second pads of the second chip via first wires, respectively, and the first pads are connected with leads of the lead frame via second wires, respectively, the first chip, the second chip, the first wires and the second wires are sealed with a resin such that a part of each of the leads is exposed from the resin, and each of the leads is then separated from the lead frame.
    Type: Application
    Filed: June 17, 2010
    Publication date: October 7, 2010
    Inventors: Fujio Ito, Hiromichi Suzuki, Akihiko Kameoka, Noriaki Sakamoto
  • Patent number: 7807510
    Abstract: There are provided the steps of connecting a chip component 13 to a first substrate 10 through a wire 14, providing an electrode 21 on a second substrate 20, attaching, to the first substrate 10, a molding tool 30 having a protruded portion 31 formed corresponding to an array of a bump connecting pad 12 of the first substrate 10 and a cavity 32 formed corresponding to a region in which the chip component 13 is mounted, thereby forming a first sealing resin 34 for sealing the chip component 13 and the wire 14, bonding the electrode 21 to the bump connecting pad 12 through a solder, thereby bonding the first substrate 10 to the second substrate 20, and filling a second filling resin 40 in a clearance portion between the first substrate 10 and the second substrate 20.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: October 5, 2010
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventor: Toshio Kobayashi
  • Publication number: 20100244285
    Abstract: In a semiconductor device, corner portions of a inner insulating film are chamfered, and hence a damage is less likely to reach the corner portion of the inner insulating film, though the corner portion of an outer insulating film is damaged. Therefore, a hermeticity of a semiconductor element can be effectively maintained, and the yield of semiconductor pellets can be improved. Moreover, since it is not necessary to chamfer the corner portion of the outer insulating film, the structure remains simple and the productivity can be improved.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 30, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Hirofumi Fukuda
  • Publication number: 20100244228
    Abstract: The extent of a bow of a semiconductor device is suppressed in a case where the fillet width of an underfill resin is asymmetrical. The center position 12 of a chip 1 is caused to deviate from the center position 13 of a wiring substrate 2 in a direction (the direction of the arrow B) reverse to the deviation direction (the direction of the arrow A) of the center position 11 of an underfill resin 4 from the center position 12 of the chip 1. The center position 14 of a resin for encapsulation 6 is caused to deviate from the center position 13 of the wiring substrate 2 in the same direction (the direction of the arrow A) as the deviation direction (the direction of the arrow A) of the center position 11 of the underfill resin 4 from the center position 12 of the chip 1.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 30, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Kenji Sakata, Tsuyoshi Kida
  • Publication number: 20100244273
    Abstract: A method for manufacturing an integrated circuit package system includes: forming a first device unit, having first external interconnects arranged along a perimeter of the first device unit, and a second device unit, having second external interconnects arranged along a perimeter of the second device unit, in an array configuration; mounting an integrated circuit die over the first device unit; connecting the integrated circuit die and the first external interconnects; encapsulating with an encapsulation covering the integrated circuit die, the first device unit, and the second device unit with both the first external interconnects and the second external interconnects partially exposed; and forming a partial encapsulation cut in the encapsulation electrically isolating the first external interconnects and the second electrical interconnects.
    Type: Application
    Filed: June 10, 2010
    Publication date: September 30, 2010
    Inventors: Lionel Chien Hui Tay, Zigmund Ramirez Camacho, Jeffrey D. Punzalan, Arnel Trasporto
  • Publication number: 20100227436
    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: Application
    Filed: May 13, 2010
    Publication date: September 9, 2010
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Bernd Goller, Markus Dinkel, Wae Chet Yong, Teck Sim Lee, Boon Kian Lim
  • Publication number: 20100224983
    Abstract: A manufacturing method of a semiconductor package structure includes the following steps. Firstly, a carrier having an adhesion tape is provided. Next, a plurality of chips are disposed on the adhesion tape. Then, a molding compound is dispensed on the adhesion tape, so that the molding compound covers the chips. Afterwards, a heat spreader is disposed on a plurality of chips. Then, the molding compound is solidified as an encapsulant to fix the heat spreader on the chips. After that, the carrier and the adhesion tape are removed to expose the active surfaces of the chips. Then, a redistribution layer is formed adjacent to the active surfaces of the chips. Next, a plurality of solder balls are disposed on the redistribution layer. Lastly, a plurality of packages are formed by cutting the redistribution layer, the encapsulant and the heat spreader according to the positions of the chip.
    Type: Application
    Filed: November 25, 2009
    Publication date: September 9, 2010
    Inventors: Min-Lung Huang, Chih-Yuan Cheng
  • Patent number: 7790512
    Abstract: A process for forming semiconductor packages comprises partially etching a leadframe matrix, encapsulating it with mold compound, placing a semiconductor die in a leadframe unit and singulating the leadframe matrix. A system for forming semiconductor packages comprises means for partially etching a leadframe matrix, means for encapsulating it with mold compound, means for placing a semiconductor die in a leadframe unit and means for singulating the leadframe matrix.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: September 7, 2010
    Assignee: UTAC Thai Limited
    Inventors: Saravuth Sirinorakul, Somchai Nondhasitthichai
  • Patent number: 7781262
    Abstract: The method of producing a semiconductor device in which chips are resin-molded, including steps of: preparing frames having front and back surfaces and die pads; preparing an insulation resin sheet having a first and a second surfaces; preparing a resin-sealing metal mold having cap pins; mounting the resin sheet inside the resin-sealing metal mold in such a manner that the second surface of the resin sheet contacts an inner bottom surface of the resin-sealing metal mold; mounting power chips on the surfaces of the die pads; positioning the frames on the first surface of the resin sheet in such a manner that the back surfaces of the die pads contact the first surface of the resin sheet; pressing the die pads toward the resin sheet using the cap pins and fixing the die pads; injecting a sealing resin in the resin-sealing metal mold and hardening the sealing resin; and removing the semiconductor device in which the power chips are molded with the sealing resin out from the resin-sealing metal mold.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: August 24, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenichi Hayashi, Hisashi Kawafuji, Tatsuyuki Takeshita, Nobuhito Funakoshi, Hiroyuki Ozaki
  • Patent number: 7781261
    Abstract: An integrated circuit package system includes: mounting a device structure in an offset location over a carrier with the device structure having a bond pad and a contact pad; connecting an electrical interconnect between the bond pad and the carrier; forming an anti-flash structure over the device structure with the anti-flash structure exposing the contact pad; and forming a package encapsulation adjacent to the anti-flash structure and over the carrier.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: August 24, 2010
    Assignee: Stats Chippac Ltd.
    Inventors: Seng Guan Chow, Heap Hoe Kuan, Linda Pei Ee Chua
  • Patent number: 7781266
    Abstract: A method of assembling an IC device package is provided. A leadframe is formed. At least one IC die is attached to a die attach pad portion of the leadframe. Wire bonds are coupled between the IC die and the leadframe. A cap is attached to the leadframe. A second surface of the cap includes a cavity formed therein. The cap and leadframe form an enclosure structure that substantially encloses the at least one IC die. An encapsulating material is applied to encapsulate at least the IC die. A perimeter support ring portion of the leadframe is trimmed.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: August 24, 2010
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Reza-ur Rahman Khan
  • Publication number: 20100203682
    Abstract: A semiconductor device including a semiconductor device, an integrated circuit chip, a sealing resin encapsulating the integrated circuit chip and an insulating waterproof film covering at least a portion of a surface of said sealing resin and preventing penetration of moisture into the sealing resin.
    Type: Application
    Filed: April 20, 2010
    Publication date: August 12, 2010
    Applicant: FUJITSU MICROELECTRONICS LIMITED
    Inventors: Hideaki Kikuchi, Kouichi Nagai
  • Publication number: 20100197080
    Abstract: The adhesive sheet for manufacturing a semiconductor device is an adhesive sheet for manufacturing a semiconductor device used when a semiconductor element is adhered to an adherend and the semiconductor element is wire-bonded, and is a peelable adhesive sheet in which the 180 degree peeling adhesive strength against a silicon wafer is 5 (N/25 mm width) or less.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 5, 2010
    Inventors: Takeshi Matsumura, Sadahito Misumi, Kazuhito Hosokawa, Hiroyuki Kondo