Overhang Structure (epo) Patents (Class 257/E23.022)
  • Patent number: 9041182
    Abstract: A semiconductor package according to embodiments includes: a semiconductor chip including a front electrode on a front surface thereof and a back electrode on a back surface thereof; a front-side cap portion including an air gap in a portion between the semiconductor chip and the front-side cap portion and a front-side penetrating electrode, and is positioned to face the front surface of the semiconductor chip; a back-side cap portion bonded with a first cap portion to hermetically seal the semiconductor chip, includes an air gap at least in a portion between the semiconductor chip and the back-side cap portion and a back-side penetrating electrode, and is positioned to face the back surface of the semiconductor chip; a front-side connecting portion which electrically connects the front electrode and the front-side penetrating electrode; and a back-side connecting portion which electrically connects the back electrode and the back-side penetrating electrode.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: May 26, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshihiko Nagano, Kazuhide Abe, Hiroshi Yamada, Kazuhiko Itaya, Taihei Nakada
  • Patent number: 8981573
    Abstract: Some embodiments of the invention include a connecting structure between a support and at least one die attached to the support. The die includes a number of die bond pads on a surface of the die. The connecting structure includes a plurality of via and groove combinations. Conductive material is formed in the via and groove combinations to provide connection between the die bond pads and bond pads on the support. Other embodiments are described and claimed.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: March 17, 2015
    Assignee: Intel Corporation
    Inventors: Jiamiao Tang, Henry Xu, Shinichi Sakamoto
  • Patent number: 8970019
    Abstract: A semiconductor device includes a semiconductor chip with bonding pads, the bonding pads being arranged along one side of an element forming surface of the semiconductor chip, a lead frame including first and second internal leads arranged such that tips thereof correspond to some of the bonding pads of the semiconductor chip, and first and second bonding wires by which the first internal leads and the some of the bonding pads are bonded to each other. The semiconductor device further includes a hanging pin section provided on the element non-forming surface of the semiconductor chip, and a sealing member with which the semiconductor chip is sealed including the hanging pin section and a bonding section between the first and second internal leads and the first and second bonding wires.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: March 3, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Isao Ozawa
  • Patent number: 8928123
    Abstract: A substrate has a first surface and a second surface opposed to each other. A blind hole is formed in the substrate extending from the first surface at a location for each through via. Each blind hole is filled with a conductive filler; a deepest part of each filler forming a bump portion made of a solder material. Part of the substrate extending from the second surface is removed to have at least the bump portions protrude from the substrate. The non-protruding part of each filler defines the corresponding via and the bump portion defines the corresponding solder bump.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: January 6, 2015
    Assignees: STMicroelectronics S.r.l., Politecnico di Milano
    Inventors: Gian Pietro Vanalli, Giovanni Campardo, Aldo Losavio, Paolo Pulici, Pier Paolo Stoppino
  • Patent number: 8836134
    Abstract: A method of fabricating a semiconductor stacked package is provided. A singulation process is performed on a wafer and a substrate, on which the wafer is stacked. A portion of the wafer on a cutting region is removed, to form a stress concentrated region on an edge of a chip of the wafer. The wafer and the substrate are then cut, and a stress is forced to be concentrated on the edge of the chip of the wafer. As a result, the edge of the chip is warpaged. Therefore, the stress is prevented from extending to the inside of the chip. A semiconductor stacked package is also provided.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: September 16, 2014
    Assignee: Xintec Inc.
    Inventors: Po-Shen Lin, Chuan-Jin Shiu, Bing-Siang Chen, Chen-Han Chiang, Chien-Hui Chen, Hsi-Chien Lin, Yen-Shih Ho
  • Patent number: 8796845
    Abstract: An electronic device according to the invention includes: a substrate; an MEMS structure formed above the substrate; and a covering structure defining a cavity in which the MEMS structure is arranged, wherein the covering structure has a first covering layer covering from above the cavity and having a through-hole in communication with the cavity and a second covering layer formed above the first covering layer and closing the through-hole, the first covering layer has a first region located above at least the MEMS structure and a second region located around the first region, the first covering layer is thinner in the first region than in the second region, and a distance between the substrate and the first covering layer in the first region is longer than a distance between the substrate and the first covering layer in the second region.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: August 5, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Yoko Kanemoto, Akira Sato, Shogo Inaba
  • Patent number: 8786082
    Abstract: A semiconductor structure is provided. The semiconductor structure includes a substrate, at least two pads, a passivation layer, at least two under bump metallization (UBM) layers and at least two bumps. The pads are disposed adjacent to each other on the substrate along the first direction. The passivation layer covers the substrate and the peripheral upper surface of each pad to define an opening. Each of the openings defines an opening projection along the second direction. The opening projections are disposed adjacent to each other but not overlapping with each other. Furthermore, the first direction is perpendicular to the second direction. The UBM layers are disposed on the corresponding openings, and the bumps are respectively disposed on the corresponding UBM layers. With the above arrangements, the width of each bump of the semiconductor structure of the present invention could be widened without being limited by the bump pitch.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: July 22, 2014
    Assignee: Chipmos Technologies Inc.
    Inventor: Geng-Shin Shen
  • Patent number: 8759215
    Abstract: A method for manufacturing solder bumps for through vias in a substrate having a first surface and a second surface opposed to each other. The method includes the steps of forming a blind hole extending in the substrate from the first surface for each via and filling each blind hole with a conductive filler; a deepest part of each filler includes a bump portion made of a solder material. The method further includes the step of removing a part of the substrate extending from the second surface to have at least the bump portions protrude from the substrate. The non-protruding part of each filler defines the corresponding via and the bump portion defines the corresponding bump.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: June 24, 2014
    Assignees: STMicroelectronics S.r.l., Politecnico di Milano
    Inventors: Gian Pietro Vanalli, Giovanni Campardo, Aldo Losavio, Paolo Pulici, Pier Paolo Stoppino
  • Patent number: 8659175
    Abstract: An integrated circuit package system is provided including mounting a first integrated circuit device over a carrier, mounting a second integrated circuit device having an adhesive spacer over the first integrated circuit device in an offset configuration, connecting a first internal interconnect between the carrier and the first integrated circuit device with the first internal interconnect within the adhesive spacer, connecting a second internal interconnect between the carrier and the second integrated circuit device, and encapsulating the first integrated circuit device, the second integrated circuit device, the first internal interconnect and the second internal interconnect.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: February 25, 2014
    Assignee: Stats Chippac Ltd.
    Inventors: Jong Wook Ju, Taeg Ki Lim, Hyun Joung Kim
  • Patent number: 8659174
    Abstract: There is provided a semiconductor device with which stress can be prevented from locally concentrating on an external connecting terminal on a post and thus damages of the external connecting terminal can be prevented. The semiconductor device includes a semiconductor chip, a sealing resin layer stacked on a surface of the semiconductor chip, and the post which penetrates the sealing resin layer in a stacking direction of the semiconductor chip and the sealing resin layer, protrudes from the sealing resin layer, and has a periphery of the protruding portion opposedly in contact with a surface of the sealing resin layer in the stacking direction.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: February 25, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Osamu Miyata, Shingo Higuchi
  • Patent number: 8525273
    Abstract: An integrated circuit device includes a substrate having adjacent first and second regions, and a device isolation structure in the substrate between the first and second regions. The first and second regions of the substrate may respectively include transistors configured to be driven at different operational voltages, and the device isolation structure may electrically separates the transistors of the first region from the transistors of the second region. The device isolation structure includes outer portions immediately adjacent to the first and second regions and an inner portion therebetween. The outer portions of the device isolation structure comprise a material having an etching selectivity with respect to that of the inner portion. Related devices and fabrication methods are also discussed.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Oh-kyum Kwon, Tae-jung Lee, Sun-hyun Kim
  • Patent number: 8373279
    Abstract: In an embodiment, a die package may be provided. The die package may include at least one first height adjusting structure, the at least one first height adjusting structure may include a first adjusting height relative to a common plane; at least one second height adjusting structure may be positioned adjacent to the at least one first height adjusting structure, the at least one second height adjusting structure may include a second adjusting height relative to the common plane; wherein the second adjusting height may be different from the first adjusting height relative to the common plane; a first die may be positioned on the at least one first height adjusting structure; and a mold housing substantially surrounding the at least one first height adjusting structure, the at least one second height adjusting structure and the first die.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: February 12, 2013
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Patent number: 8330253
    Abstract: The present invention provides a technique for improving the reliability of a semiconductor device where spreading of cracking that occurs at the time of dicing to a seal ring can be restricted even in a semiconductor device with a low-k film used as an interlayer insulating film. Dummy vias are formed in each layer on a dicing region side. The dummy vias are formed at the same intervals in a matrix as viewed in a top view. Even in the case where cracking occurs at the time of dicing, the cracking can be prevented from spreading to a seal ring by the dummy vias. As a result, resistance to moisture absorbed in a circuit formation region can be improved, and deterioration in reliability can be prevented.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: December 11, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Kazuo Tomita
  • Patent number: 8237258
    Abstract: A semiconductor module includes a device mounting board and a semiconductor device mounted on the device mounting board. The device mounting board includes an insulating resin layer, a wiring layer provided on one main surface of the insulating resin layer, and bump electrodes, electrically connected to the wiring layer, which are protruded from the wiring layer toward the insulating resin layer. The semiconductor device has device electrodes which are disposed counter to a semiconductor substrate and the bump electrodes, respectively. The surface of a metallic layer provided on the device electrode lies on the same plane as the surface of a protective layer.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: August 7, 2012
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kouichi Saitou, Yoshio Okayama, Yasuyuki Yanase, Takahiro Fujii
  • Patent number: 8232634
    Abstract: A semiconductor chip is mounted on a heat sink disposed inside a through-hole of a wiring board, electrodes of the semiconductor chip and connecting terminals of the wiring board are connected by bonding wires, a sealing resin is formed to cover the semiconductor chip and the bonding wires, and solder balls are formed on the lower surface of the wiring board, thereby constituting the semiconductor device. The heat sink is thicker than the wiring board. The heat sink has a protruded portion protruding to outside from the side surface of the heat sink, the protruded portion is located on the upper surface of the wiring board outside the through-hole, and the lower surface of the protruded portion contacts to the upper surface of the wiring board. When the semiconductor device is manufactured, the heat sink is inserted from the upper surface side of the wiring board.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: July 31, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Noriyuki Takahashi, Mamoru Shishido
  • Patent number: 8227900
    Abstract: The present invention provides a technique for improving the reliability of a semiconductor device where spreading of cracking that occurs at the time of dicing to a seal ring can be restricted even in a semiconductor device with a low-k film used as an interlayer insulating film. Dummy vias are formed in each layer on a dicing region side. The dummy vias are formed at the same intervals in a matrix as viewed in a top view. Even in the case where cracking occurs at the time of dicing, the cracking can be prevented from spreading to a seal ring by the dummy vias. As a result, resistance to moisture absorbed in a circuit formation region can be improved, and deterioration in reliability can be prevented.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: July 24, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Kazuo Tomita
  • Patent number: 8063495
    Abstract: There is provided a semiconductor device with which stress can be prevented from locally concentrating on an external connecting terminal on a post and thus damages of the external connecting terminal can be prevented. The semiconductor device includes a semiconductor chip, a sealing resin layer stacked on a surface of the semiconductor chip, and the post which penetrates the sealing resin layer in a stacking direction of the semiconductor chip and the sealing resin layer, protrudes from the sealing resin layer, and has a periphery of the protruding portion opposedly in contact with a surface of the sealing resin layer in the stacking direction.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: November 22, 2011
    Assignee: Rohm Co., Ltd.
    Inventors: Osamu Miyata, Shingo Higuchi
  • Patent number: 8058727
    Abstract: A standing chip scale package is disclosed. The standing chip scale package provides electrical connection to bumped device contacts on both sides of the chip. The package is coupleable to a printed circuit board in a standing configuration such that front and back sides of the bumped chip are substantially perpendicular to a mounting surface. A process of fabricating the standing chip scale package is also disclosed.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: November 15, 2011
    Assignee: Alpha and Omega Semiconductor Incorporation
    Inventors: Tao Feng, Anup Bhalla, Yueh-Se Ho
  • Patent number: 8030782
    Abstract: Embodiments of the invention provide a first component with a compliant interconnect bonded to a second component with a land pad by a metal to metal bond. In some embodiments, the first component may be a microprocessor die and the second component a package substrate.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: October 4, 2011
    Assignee: Intel Corporation
    Inventors: Shriram Ramanathan, Sriram Muthukumar
  • Patent number: 8030767
    Abstract: A bump structure with an annular support suitable for being disposed on a substrate is provided. The substrate has at least one pad and a passivation layer that has at least one opening exposing a portion of the pad. The bump structure with the annular support includes an under ball metal (UBM) layer, a bump, and an annular support. The UBM layer is disposed on the passivation layer and covers the pad exposed by the passivation layer. The bump is disposed on the UBM layer over the pad, and a diameter of a lower surface of the bump is less than the diameter of an upper surface thereof. The annular support surrounds and contacts the bump, and a material of the annular support is photoresist. An under cut effect is not apt to happen on the bump structure.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: October 4, 2011
    Assignee: ChipMOS Technologies (Bermuda) Ltd.
    Inventor: Jing-Hong Yang
  • Patent number: 7989936
    Abstract: An apparatus including an electronic device having a plurality of substantially collocated components, the plurality of components including an antenna, an energy supply and an integrated circuit chip. The integrated circuit chip is electrically coupled to the antenna and the energy supply. A material substantially encloses the electronic device.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: August 2, 2011
    Inventor: Joseph Harry McCain
  • Patent number: 7969003
    Abstract: A manufacturing method of a bump structure having a reinforcement member is disclosed. First, a substrate including pads and a passivation layer is provided. The passivation layer has first openings, and each first opening exposes a portion of the corresponding pad respectively. Next, an under ball metal (UBM) material layer is formed on the substrate to cover the passivation layer and the pads exposed by the passivation layer. Bumps are formed on the UBM material layer and the lower surface of each bump is smaller than that of the opening. Each reinforcement member formed on the UBM material layer around each bump contacts with each bump, and the material of the reinforcement member is a polymer. The UBM material layer is patterned to form UBM layers and the lower surface of each UBM layer is larger than that of each corresponding opening. Hence, the bump has a planar upper surface.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: June 28, 2011
    Assignee: ChipMOS Technologies Inc.
    Inventor: Cheng-Tang Huang
  • Patent number: 7919837
    Abstract: A semiconductor device includes a semiconductor chip with bonding pads, the bonding pads being arranged along one side of an element forming surface of the semiconductor chip, a lead frame including first and second internal leads arranged such that tips thereof correspond to some of the bonding pads of the semiconductor chip, and first and second bonding wires by which the first internal leads and the some of the bonding pads are bonded to each other. The semiconductor device further includes a hanging pin section provided on the element non-forming surface of the semiconductor chip, and a sealing member with which the semiconductor chip is sealed including the hanging pin section and a bonding section between the first and second internal leads and the first and second bonding wires.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: April 5, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Isao Ozawa
  • Patent number: 7892963
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing an integrated circuit substrate having a non-active side and an active side; forming a recess in the integrated circuit substrate from the non-active side exposing a first contact and a second contact with the first contact and the second contact along the active side; forming a first via, having a first via extension extended beyond the non-active side and an opening at the non-active side, within the recess; forming a barrier liner within the opening with the barrier liner exposed beyond the non-active side; and forming a second via over the barrier liner and within the opening of the first via with the second via exposed beyond the non-active side.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: February 22, 2011
    Assignee: Globalfoundries Singapore Pte. Ltd.
    Inventors: Alfred Yeo, Kai Chong Chan
  • Patent number: 7884486
    Abstract: A chip stacked package structure and applications are provided. The chip-stacked package structure includes a main substrate, a baseboard substrate, and a molding compound. The main substrate has a substrate and a first chip. The substrate has a first surface and a second surface opposite to the first surface. The first chip is disposed on the first surface and electrically connected to the substrate via first bumps. The baseboard substrate has a third surface and a fourth surface faced towards the substrate. The baseboard substrate includes a core layer having a plurality of first through holes and a first accommodation space in which the first chip is received. The second chip is disposed on the third surface of the baseboard substrate. The molding compound is used to encapsulate the main substrate, and the baseboard substrate.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: February 8, 2011
    Assignee: Chipmos Technology Inc.
    Inventors: Yu-Tang Pan, Shih-Wen Chou
  • Patent number: 7723840
    Abstract: An integrated circuit package system is provided including forming an external interconnect, providing a contoured integrated circuit die having both an extension and a base portion with the extension extending beyond the base portion, placing the contoured integrated circuit die with the base portion coplanar with the external interconnect and the extension overhanging the external interconnect, connecting the contoured integrated circuit die and the external interconnect, and forming a package encapsulation over the contoured integrated circuit die and the external interconnect with both partially exposed.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: May 25, 2010
    Assignee: Stats Chippac Ltd.
    Inventors: Henry Descalzo Bathan, Lionel Chien Hui Tay, Zigmund Ramirez Camacho
  • Patent number: 7701039
    Abstract: At least one high aspect ratio via is formed in the backside of a semiconductor substrate. The at least one via is closed at one end by a conductive element forming a conductive structure of the semiconductor substrate. The backside of the semiconductor substrate is exposed to an electroplating solution containing a conductive material in solution with the active surface semiconductor substrate isolated therefrom. An electric potential is applied across the conductive element through the electroplating solution and a conductive contact pad in direct or indirect electrical communication with the conductive element at the closed end of the at least one via (or forming such conductive element) to cause conductive material to electrochemically deposit from the electroplating solution and fill the at least one via. Semiconductor devices and in-process semiconductor devices are also disclosed.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: April 20, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Kyle K. Kirby, Warren M. Farnworth
  • Patent number: 7679189
    Abstract: A display device includes a drive circuit chip, and a substrate on which the drive circuit chip is mounted. The drive circuit chip includes a semiconductor substrate, an insulation layer, a first conductive layer and a second conductive layer formed of metal between the semiconductor substrate and the insulation layer, and a first bump and a second bump formed over the insulation layer. The first bump is superposed with the first conductive layer, and a profile of the first bump in plan view is within a profile of the first conductive layer in plan view. The second bump is superposed with the second conductive layer, and a profile of the second pump in plan view is beyond a profile of the second conductive layer in plan view.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 16, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hideaki Abe, Makoto Sato, Mitsuru Goto
  • Patent number: 7635606
    Abstract: According to one exemplary embodiment, a method for forming a wafer level package includes fabricating an active device on a substrate in a semiconductor wafer, forming polymer walls around the active device, and applying a blanket film over the semiconductor wafer and the polymer walls to house the active device in a substantially enclosed cavity formed by the polymer walls and the blanket film. By way of examples and without limitation, the active device can be a microelectromechanical systems (“MEMS”) device, a bulk acoustic wave (“BAW”) filter, or a surface acoustic wave (“SAW”) filter. According to one embodiment, solder bumps can be applied to interconnect traces of the active device, and the semiconductor wafer can then be diced to form an individual die. According to another embodiment, the semiconductor wafer can be diced to form an individual die, then the individual die is wire bonded to a circuit board.
    Type: Grant
    Filed: May 5, 2007
    Date of Patent: December 22, 2009
    Assignee: Skyworks Solutions, Inc.
    Inventors: Robert W. Warren, Gene Gan, Tony LoBianco
  • Patent number: 7573137
    Abstract: A device has a first semiconductor chip (101) with contact pads in an interior first set (102) and a peripheral second set (103). A deformed sphere (104) of non-reflow metal such as gold is placed on each contact pad of the first and second sets. At least one additional deformed sphere (105) is placed on the first set pads, forming column-shaped spacers. The first chip is attached to a substrate (110) with a chip attachment location and a third set of contact pads (112) near the location. Low profile bond wires (130) span between the pads of the third set and the second set. A second semiconductor chip (140) of a size has a fourth set of contact pads (141) at locations matching the first set pads. The second chip is placed over the first chip so that the fourth set pads are aligned with the spacers on the matching first set pads, and at least one edge of the second chip overhangs the sphere on at least one pad of the second set.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: August 11, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: David N. Walter, Duy-Loan T. Le, Mark A. Gerber
  • Patent number: 7566575
    Abstract: A method according to the present invention for producing a semiconductor-chip-mounting circuit 1 includes mainly three steps. In a first step, contacts 2 each in the form of a conical helix are formed by solder-plating the surface of connecting terminals 12 on a mounting circuit 10. In a second step, a continuity test is performed by pressing bumps 21 against the contacts 2. In a final third step, the contacts 2 pressed are melted to connect the connecting terminals 12 to the bumps 21. That is, the semiconductor chip 20 is connected to the mounting circuit 10 while maintaining a state in which they pass the continuity test, thereby significantly reducing the occurrence of defective continuity in the semiconductor-chip-mounting circuit 1.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: July 28, 2009
    Assignee: ALPS Electric Co., Ltd.
    Inventor: Shinji Murata
  • Patent number: 7518250
    Abstract: A first solder resist section and a second solder resist section are formed over an upper surface of a wiring board. A semiconductor chip is bonded onto the first solder resist section via an adhesive interposed therebetween. Electrodes of the semiconductor chip are respectively electrically connected to connecting terminals exposed through openings of the second solder resist section via bonding wires. An encapsulating resin is formed over the upper surface of the wiring board so as to cover the semiconductor chip and the bonding wires. A plane dimension of the first solder resist section is smaller than that of the semiconductor chip, and the encapsulating resin is filled even below an outer peripheral portion of a back surface of the semiconductor chip.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: April 14, 2009
    Assignee: Renesas Technology Corp.
    Inventor: Yoshihiko Shimanuki
  • Patent number: 7468316
    Abstract: A barrier layer is deposited over a layer of passivation including in an opening to a contact pad created in the layer of passivation. A column of three layers of metal is formed overlying the barrier layer and aligned with the contact pad and having a diameter that is about equal to the surface of the contact pad. The three metal layers of the column comprise, in succession when proceeding from the layer that is in contact with the barrier layer, a layer of pillar metal, a layer of under bump metal and a layer of solder metal. The layer of pillar metal is reduced in diameter, the barrier layer is selectively removed from the surface of the layer of passivation after which reflowing of the solder metal completes the solder bump of the invention.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: December 23, 2008
    Assignee: Megica Corporation
    Inventors: Jin-Yuan Lee, Mou-Shiung Lin, Ching-Cheng Huang
  • Patent number: 7462932
    Abstract: A wafer or a portion of a wafer including capped chips such as surface acoustic wave (SAW) chips is provided with terminals by applying a terminal-bearing element such as a dielectric element with terminals and leads thereon, or a lead frame, so that the terminal-bearing element covers the caps, and the leads are aligned with channels or other depressions between the caps. The leads are connected to contacts on the wafer, and the wafer is severed to form individual units, each including terminals supported by the cap and connected to the contacts by the leads. The resulting units can be handled and processed in the same manner as ordinary chips or chip assemblies.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: December 9, 2008
    Assignee: Tessera, Inc.
    Inventors: Belgacem Haba, Yoichi Kubota
  • Patent number: 7459795
    Abstract: Resilient spring contacts for use in wafer test probing are provided that can be manufactured with a very fine pitch spacing and precisely located on a support substrate. The resilient contact structures are adapted for wire bonding to an electrical circuit on a space transformer substrate. The support substrates with attached spring contacts can be manufactured together in large numbers and diced up and tested before attachment to a space transformer substrate to improve yield. The resilient spring contacts are manufactured using photolithographic techniques to form the contacts on a release layer, before the spring contacts are epoxied to the support substrate and the release layer removed. The support substrate can be transparent to allow alignment of the contacts and testing of optical components beneath. The support substrate can include a ground plane provided beneath the spring contacts for improved impedance matching.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: December 2, 2008
    Assignee: FormFactor, Inc.
    Inventors: Benjamin N. Eldridge, Bruce Jeffrey Barbara
  • Publication number: 20070228543
    Abstract: A device has a first semiconductor chip (101) with contact pads in an interior first set (102) and a peripheral second set (103). A deformed sphere (104) of non-reflow metal such as gold is placed on each contact pad of the first and second sets. At least one additional deformed sphere (105) is placed on the first set pads, forming column-shaped spacers. The first chip is attached to a substrate (110) with a chip attachment location and a third set of contact pads (112) near the location. Low profile bond wires (130) span between the pads of the third set and the second set. A second semiconductor chip (140) of a size has a fourth set of contact pads (141) at locations matching the first set pads. The second chip is placed over the first chip so that the fourth set pads are aligned with the spacers on the matching first set pads, and at least one edge of the second chip overhangs the sphere on at least one pad of the second set.
    Type: Application
    Filed: June 8, 2006
    Publication date: October 4, 2007
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: David N. Walter, Duy-Loan T. Le, Mark A. Gerber
  • Patent number: 7239019
    Abstract: An inter-layer dielectric structure and method of making such structure are disclosed. A composite dielectric layer, initially comprising a porous matrix and a porogen, is formed. Subsequent to other processing treatments, the porogen is decomposed and removed from at least a portion of the porous matrix, leaving voids defined by the porous matrix in areas previously occupied by the porogen. The resultant structure has a desirably low k value as a result of the porosity and materials comprising the porous matrix and porogen. The composite dielectric layer may be used in concert with other dielectric layers of varying porosity, dimensions, and material properties to provide varied mechanical and electrical performance profiles.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: July 3, 2007
    Assignee: Intel Corporation
    Inventors: Jihperng Leu, Grant M. Kloster, David H. Gracias, Lee D. Rockford, Peter K. Moon, Chris E. Barns
  • Patent number: 7218008
    Abstract: A semiconductor device includes: a semiconductor substrate in which an integrated circuit is formed; an interconnect layer which includes a linear section and a land section connected with the linear section; and an underlayer disposed under the interconnect layer, and the land section includes a first section which is in contact with the underlayer, and a second section which is not in contact with the underlayer.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: May 15, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Yasunori Kurosawa
  • Patent number: 7211900
    Abstract: A semiconductor package and method for fabricating the same is disclosed. In one embodiment, the semiconductor package includes a circuit board, at least two semiconductor chips, electric connection means, an encapsulant, and a plurality of conductive balls. The circuit board has a resin layer and a circuit pattern. The resin layer is provided with an opening at its center portion. The circuit pattern is formed on at least one of upper and lower surfaces of the resin layer and includes one or more bond fingers and ball lands exposed to the outside. The semiconductor chips have a plurality of input/output pads on an active surface thereof. The semiconductor chips are stacked at a position of the opening of the circuit board, with at least one of the chips being within the opening. Alternatively, both chips are in the opening. The electric connection means connects the input/output pads of the semiconductor chips to the bond fingers of the circuit board.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: May 1, 2007
    Assignee: Amkor Technology, Inc.
    Inventors: Won Sun Shin, Do Sung Chun, Seon Goo Lee, Il Kwon Shim, Vincent DiCaprio