Power, Voltage, Or Current Layer Patents (Class 361/794)
  • Patent number: 8208271
    Abstract: A printed board having an input/output terminal that connects with a component in an image formation apparatus through a cable, and a control circuit that controls the component, the printed board which includes a conductive pattern on which a capacitor that suppresses an emission of an electromagnetic wave from the cable is mounted between a grounding surface and a signal line from the input/output terminal, the conductive pattern being formed in the vicinity of the input/output terminal.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: June 26, 2012
    Assignee: Fuji Xerox Co., Ltd
    Inventors: Atsushi Aketo, Hisanori Yukawa, Shogo Sata, Masaru Yonemochi, Hiromasa Kanno
  • Patent number: 8203082
    Abstract: A printed circuit board includes a first layout layer, a second layout layer, a copper foil layer, a first via and a second via. The first layout layer has a first signal line and a second signal line, each of which has a curved first portion. The second layout layer has a third signal line and a fourth signal line, each of which also has a curved first portion. The curved first portions of the first signal line, the second signal line, the third signal line and the fourth signal line are coupled to the first via and the second via. In this case, the curved first portions of the first signal line, the second signal line, the third signal line and the fourth signal line cooperatively generate spiral inductance characteristic.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: June 19, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Yu-Chang Pai, Shou-Kuo Hsu, Chien-Hung Liu, Ying-Tso Lai
  • Patent number: 8199521
    Abstract: A memory module includes an electronic printed circuit board with at least one contact strip, a plurality of integrated memory components, at least one first and one second buffer component, and a number of conductor tracks, which proceed from the contact strip and which are arranged on or in the printed circuit board. The conductor tracks include data lines, control lines and address lines. The conductor tracks lead from the contact strip to the buffer components or to one of the buffer components. The printed circuit board has conductor tracks that are interposed between the first buffer component and the second buffer component and that lead from the first buffer component to the second buffer component.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: June 12, 2012
    Assignee: Qimonda AG
    Inventor: Simon Muff
  • Patent number: 8199519
    Abstract: A chip adapter used to install a chip on a first chip arranging area of a circuit board includes a board. The size of the board has the same size as the first chip arranging area of the circuit board. Edges of the chip adapter define a number of gaps corresponding to first pads of the circuit board. A second chip arranging area of the same size as the chip is arranged in a center of the chip adapter. A number of second pads are arranged around the second chip arranging area of the chip adapter corresponding to pins of the chip. Each second pad is electrically connected to a sidewall of the corresponding gap of the chip adapter.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: June 12, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Ming-Chih Hsieh, Heng-Chen Kuo
  • Patent number: 8199522
    Abstract: A printed circuit board includes a first signal layer, a first reference layer, a second reference layer, and a second signal layer. An integrated circuit mounted on the first signal layer includes a power supply terminal connected to a first power supply via. The second signal layer includes a filter and a power supply wire. The filter includes a power terminal connected to the first power supply via, and a ground terminal connected to the second reference layer. The first power supply via is connected to the first reference layer through the power supply wire and a second power supply via. A void defined in the second reference layer is at least partially vertically overlapping with the power supply wire, and enables the first reference layer to function as a reference plane for the power supply wire, to increase impedance of the power supply wire.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: June 12, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Shou-Kuo Hsu, Chun-Jen Chen
  • Patent number: 8183468
    Abstract: An electromagnetic bandgap structure and a printed circuit board including it as well as a method of manufacturing thereof that can solve a mixed signal problem between an analog circuit and a digital circuit are disclosed. The electromagnetic bandgap structure in accordance with an embodiment of the present invention can include: a first metal layer; a first dielectric layer, stacked on the first metal layer; a metal plate, stacked on the first dielectric layer; a second dielectric layer, stacked on the metal plate and the first dielectric layer; a second metal layer, stacked on the second dielectric layer; and a via, directed from the metal plate to the first metal layer and the second metal layer. The via can be connected to the first metal layer and is not connected the second metal layer.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: May 22, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Han Kim, Dae-Hyun Park
  • Patent number: 8184447
    Abstract: A versatile multi-layer electronic part built-in board compatible with different external circuits to be connected thereto is provided. Sensors are connected to a connector through connection lines that are connected to electronic parts. The electronic parts are directly connected to the connector and can be mounted on the top layer, the bottom layer or both the top and bottom layers of the multi-layer electronic part built-in board. When the sensor to be connected, for example, is changed to another having a different characteristic, an electronic part mounted on the top and bottom layers correspondingly to the sensor can be changed.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: May 22, 2012
    Assignee: DENSO CORPORATION
    Inventors: Dai Itou, Tooru Itabashi
  • Patent number: 8179682
    Abstract: A multilayer circuit board having a security cell having security-related electronic components disposed thereon. The security cell is covered by a circuit path arrangement having circuit path segments disposed close to one another, and by an insulation layer. Penetration and thus manipulation of the security-related components is thus largely prevented.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: May 15, 2012
    Assignee: Continental Automotive GmbH
    Inventors: Dieter Cremer, Reinfried Grimmel
  • Patent number: 8179689
    Abstract: A printed circuit board has capacitors, a grounding wiring pattern having a bonding surface on which a semiconductor device is bonded, and a contact surface located opposite from the bonding surface thereof and coupled to first electrodes of the capacitors, and a power supply wiring pattern having a bonding surface on which the semiconductor device is bonded, and a contact surface located opposite from the bonding surface thereof and coupled to second electrodes of the capacitors. The grounding and power supply wiring patterns are alternately arranged in a predetermined direction, and the capacitors are coupled in parallel with respect to the grounding and power supply wiring patterns.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: May 15, 2012
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventor: Naohiro Mashino
  • Patent number: 8178790
    Abstract: An interposer and a method of manufacturing the same are provided. The interposer includes a substrate and a conductor portion formed inside the substrate. At least one insulating layer is formed on the substrate and on the conductor portion. A signal wiring portion is formed inside the insulating layer or on the insulating layer. A first pad is configured to receive an electronic part, and is formed on an outermost insulating layer of the at least one insulating layer. A connection conductor is formed in the at least one insulating layer so as to electrically connect the conductor portion to the first pad.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: May 15, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Toshiki Furutani, Atsushi Sakai, Kiyohisa Hasegawa, Hiroshi Segawa, Shuichi Kawano, Hajime Sakamoto
  • Patent number: 8179687
    Abstract: A signal transmission device is installed on a motherboard and is electrically connected to a signal control unit and a display output interface. The signal transmission device includes a signal receiving port, a signal output port, and a printed circuit connecting port. The signal receiving port is used for receiving a signal transmitted from the signal control unit. The signal output port is used for single output of the signal to the display output interface. The printed circuit connecting port is used for transmitting the signal from the signal receiving port to the signal output port. Thus, the signal transmission device may be used for single signal output so as to replace a switch integrated circuit of selective signal output. In such a manner, related circuit redesign and manufacturing cost may be reduced accordingly when the motherboard signal output design is changed from selective signal output to single signal output.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: May 15, 2012
    Assignee: Elitegroup Computer Systems Co., Ltd.
    Inventor: Hsin-Meng Kuo
  • Patent number: 8174843
    Abstract: A power source terminal and a ground terminal for a semiconductor integrated circuit are connected to a conductor pattern through a capacitor. The conductor pattern is connected, through a filter, to a plane conductor connected to neither a ground plane nor a power source plane. Thus, a common mode noise arising from between the power source and the ground is caused to flow into the plane conductor. This reduces the common mode noise flowing in the ground and the power source of the printed wiring board, which relatively act as antennas.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: May 8, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Seiji Hayashi
  • Patent number: 8169792
    Abstract: A multilayer printed wiring board includes: a build-up layer that is formed on a core substrate and has a conductor pattern disposed on an upper surface; a low elastic modulus layer that is formed on the build-up layer; lands that are disposed on an upper surface of the low elastic modulus layer and connected via solder bumps to a IC chip; and conductor posts that pass through the low elastic modulus layer and electrically connect lands with conductor patterns. The conductor posts have the aspect ratio Rasp (height/minimum diameter) of not less than 4 and the minimum diameter exceeding 30 ?m, and the aspect ratio Rasp of external conductor posts, which are positioned at external portions of the low elastic modulus layer, is greater than or equal to the aspect ratio Rasp of internal conductor posts, which are positioned at internal portions of the low elastic modulus layer.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: May 1, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Takashi Kariya, Toshiki Furutani
  • Patent number: 8164920
    Abstract: A printed wiring board includes a mounting portion on which a dual core processor including two processor cores in a single chip can be mounted, power supply lines, ground lines, and a first layered capacitor and a second layered capacitor that are independently provided for each of the processor cores, respectively. Accordingly, even when the electric potentials of the processor cores instantaneously drop, an instantaneous drop of the electric potential can be suppressed by action of the layered capacitors corresponding to the processor cores, respectively. In addition, even when the voltage of one of the processor cores varies, the variation in the voltage does not affect the other processor core, and thus malfunctioning does not occur.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: April 24, 2012
    Assignee: Ibiden Co., Ltd.
    Inventor: Takashi Kariya
  • Patent number: 8164916
    Abstract: Provided is an integrated circuit system and method for biasing the same that features bifurcating a power distribution network to provide a bias voltage to the integrated circuit system. One of the branches of the power distribution network attenuates an impedance in the power distribution network that supplies transient currents and the remaining branch supplies a substantially steady-state currents.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: April 24, 2012
    Assignee: Altera Corportation
    Inventor: Hong Shi
  • Patent number: 8164005
    Abstract: A multilayer high-frequency circuit board includes a signal line, ground layers, and an interlayer circuit. A signal line where a high-frequency signal flows is formed in the signal line layer. The ground layers are laminated on both sides of the signal line layer, each of which is grounded. The interlayer circuit is provided in the signal line layer and includes a ground connecting portion connected to the ground layers and a signal line connecting portion connected to the signal line. One of the signal line connecting portion and the ground connecting portion surrounds an outer periphery of the other of the signal line connecting portion and the ground connecting portion concentrically with the one being separated from the outer periphery of the other along the signal line layer. An inner periphery of the one and the outer periphery of the other have a similar shape excluding a complete circle.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: April 24, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuusuke Yamashita, Ryota Suzuki, Masahiro Tanabe, Taihei Nakada, Tsuyoshi Kumamoto
  • Patent number: 8153906
    Abstract: The embodiment of the invention is about a novel interconnection structure which can be incorporated into a variety of connectors, as well as other types of interconnections in order to reduce crosstalk, to improve signal integrity and to achieve EM emission compliance. A 4-via (2 signal vias, 1 power via, and 1 ground via) interconnection structure was used for demonstrating the effect of the novel interconnection structure. The same concept can be applied to any multi-via and multi-layer interconnection structure such as PCB, IC packaging circuit, or die circuit. Vias that have an electrical property can be added adjacent to the basic 4-via interconnection structure to achieve a multi-via interconnection structure. For 1-via (1 signal via or 1 power via), 2-via (1 signal via and 1 ground via or 1 signal via and 1 power via) and 3-via (1 signal via, 1 ground via, and 1 power via) interconnection structure, the proposed interconnection structure based upon the same concept can be applied as well.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: April 10, 2012
    Inventors: Hsiuan-ju Hsu, Richard Walter Ziolkowski
  • Patent number: 8144482
    Abstract: A circuit board device includes: plurality of wiring boards (101 and 102) in which terminals are provided on the front and back surfaces and vias are provided for connecting the terminals together, an anisotropic conductive member (103) arranged between wiring boards (101 and 102) for connecting the electrodes of one wiring board to the electrodes of another wiring board, a functional block (104) composed of a metal material and arranged between the wiring boards (101 and 102) to enclose anisotropic conductive member (103), and a pair of holding blocks (105 and 106) composed of a metal material arranged to clamp the plurality of wiring boards (101 and 102), wherein the plurality of wiring boards (101 and 102), while in a state of being clamped between the pair of holding blocks (105 and 106), is connected together by the anisotropic conductive member (103) and the terminals provided on each of the wiring boards (101 and 102), the functional block (104), and the holding blocks (105 and 106) are electrically co
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: March 27, 2012
    Assignee: NEC Corporation
    Inventors: Junya Sato, Toru Taura, Nobuhiro Mikami, Shinji Watanabe, Atsumasa Sawada, Nozomu Nishimura
  • Patent number: 8139372
    Abstract: A printed circuit board is disclosed. The printed circuit board includes an insulation layer and a conductor layer having a GND pattern. The printed circuit board has a center portion, to which an element is to be mounted. The printed circuit board has a periphery portion and a slit pattern separating the periphery portion from the center portion. The GND pattern extends through the center portion and the periphery portion.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: March 20, 2012
    Assignee: DENSO CORPORATION
    Inventor: Yuusuke Matsui
  • Patent number: 8130504
    Abstract: A method of manufacturing a flexible printed circuit board having an insulation layer, a first signal wiring layer including a microstrip line, a second signal wiring layer including a signal connection terminal for allowing the microstrip line to connect the exterior connector electrically, and a ground conductive section having a ground connection terminal for connecting the exterior connector. The microstrip line and the signal connection terminal are connected to each other by a wiring via hole. The wiring via hole passes through the insulation layer, the first signal wiring layer, and the second signal wiring layer. The microstrip line has a taper section which gradually enlarges a width of the microstrip line toward the wiring via hole in the vicinity of the wiring via hole. The ground conductive section that corresponds to the microstrip line has a taper section with a shape matching the taper section of the microstrip line.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: March 6, 2012
    Assignee: Sony Corporation
    Inventors: Akira Muto, Tomokazu Tanaka
  • Patent number: 8130513
    Abstract: A radio-frequency package includes a radio-frequency device, a multilayer dielectric substrate, and an electromagnetic shield member. The multilayer dielectric substrate includes an internal conductor pad, a first signal via-hole connected to the internal conductor pad, an external conductor pad, a second signal via-hole connected to the external conductor pad, and an inner-layer signal line that connects between the first signal via-hole and the second signal via-hole. The internal conductor pad includes a leading-end open line having a length of substantially a quarter of a wavelength of a radio-frequency signal used in the radio-frequency device.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: March 6, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kousuke Yasooka
  • Patent number: 8125794
    Abstract: The invention provides a multilayer printed wiring board including: a power supply wiring layer and a ground wiring layer provided so as to oppose each other via an insulation layer; mounted integrated circuits; and decoupling capacitors mounted in proximity to the integrated circuits and connected between the power supply wiring layer and the ground wiring layer to absorb noise from the integrated circuits. The power supply wiring layer includes through holes for connecting the decoupling capacitors to the power supply wiring layer and has a polygonal form formed by straight lines which link some of the through holes.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: February 28, 2012
    Assignee: NEC Infrontia Corporation
    Inventor: Kenji Kouya
  • Patent number: 8120927
    Abstract: A printed circuit board is disclosed. The printed circuit board comprises a substrate having a top surface and a bottom surface. A ground plane is on the bottom surface. A signal trace is on the top surface along a first direction. At least two isolated power planes are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't pass over any split of the ground plane.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: February 21, 2012
    Assignee: Mediatek Inc.
    Inventors: Nan-Jang Chen, Hong-Chin Lin
  • Patent number: 8116093
    Abstract: A printed circuit board (PCB) includes a substrate having a first group of at least two via holes and a second group of at least two via holes formed therein, a first pad set of terminal pads and a second pad set of terminal pads formed on the substrate, and a first group of conductive connection members and a second group of conductive connection members formed in the substrate. The first group of the via holes are surrounded by the first pad set of the terminal pads and the second group of the via holes are surrounded by the second pad set of the terminal pads. The first and the second groups of conductive connection members fill up the first and second groups of the via holes. The first group of the conductive connection members are connected to the first pad set of the terminal pads and the second group of the conductive connection members are connected to the second pad set of the terminal pads.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: February 14, 2012
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Kwang-Soo Park, Jong-Hoon Kim
  • Patent number: 8116097
    Abstract: An apparatus for coupling an integrated circuit (IC) package to a printed circuit board. The apparatus includes an interposer an interposer having a plurality of connections suitable for surface mounting on corresponding pads of a printed circuit board (PCB). The plurality of connections is arranged in a grid array. The interposer further includes a plurality of plated through holes. The apparatus further includes a substrate having a plurality of pins. The substrate is coupled to the interposer by inserting each of the plurality of pins into a corresponding one of the plurality of plated through holes of the interposer. An IC package including an IC is mounted on the substrate.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: February 14, 2012
    Assignee: Oracle America, Inc.
    Inventors: David G. Love, Bidyut K. Sen
  • Patent number: 8110118
    Abstract: An adhesive layer, an insulating layer and a copper foil are laminated together on both surfaces of a metallic base material by way of for example thermal press molding. In this case, openings (window holes) are formed in opposed positions on a portion of the adhesive layer. A circuit pattern is formed by etching on the copper foil in this state, followed by an external shape machining step of executing separation treatment reaching the metallic base material in predetermined positions including the openings. After that, a part of the insulating layer is cut off along the edge of the opening to obtain a circuit board with the end of the metallic base material exposed.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: February 7, 2012
    Assignee: Yazaki Corporation
    Inventors: Hiroyuki Fujita, Yasutaka Ochiai, Minoru Kubota
  • Patent number: 8102670
    Abstract: Provided is a circuit device, in which circuit elements incorporated are electrically connected to each other via a lead so as to achieve both of the enhanced functionality and miniaturization. In a hybrid integrated circuit device, a first circuit board and a second circuit board are incorporated into a case member in a way that a first circuit board is overlaid with a second circuit board. A first circuit element is arranged on the upper face of the first circuit board and a second circuit element is arranged on the upper face of the second circuit board. Leads provided in the hybrid integrated circuit device include a lead connected only to the first circuit element mounted on the first circuit board, a lead connected only to the second circuit element mounted on the second circuit board, and a lead connected to both of the first circuit element and the second circuit element.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 24, 2012
    Assignees: SANYO Semiconductor Co., Ltd., Semiconductor Components Industries, LLC
    Inventors: Hideyuki Sakamoto, Hidefumi Saito, Yasuhiro Koike, Masao Tsukizawa
  • Patent number: 8084695
    Abstract: The embodiment of the invention is about a novel via structure which can be incorporated into printed circuit boards, integrated circuit packages, and integrated circuits in order to reduce crosstalk, to improve signal integrity and to achieve EM emission compliance. A 4-layer (2 signal layers and 2 power layers or 2 signal layers and 2 ground layers) circuit board assembly was used for demonstrating the effect of the novel via structure. The same concept can be applied to any multi-layer circuit board. Layers that have an electrical property can be added above, under, or within the basic 4-layer circuit board to achieve a multi-layer circuit board. For 2-layer and 3-layer circuit boards, a deformed version of the proposed via structure based upon the same concept will be needed for a coplanar waveguide configuration.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: December 27, 2011
    Inventors: Hsiuan-ju Hsu, Richard Walter Ziolkowski
  • Patent number: 8085554
    Abstract: An air inlet diffuser 10 is disclosed for attachment relative to an air inlet opening 106 of an electronics enclosure 100. The diffuser 10 extends into the electronics enclosure 100 and provides an increased surface area through which EMI attenuating apertures may be formed. The diffuser 10 also reduces the amount of structure that is disposed within the air inlet opening 106 thereby reducing impedance to airflow through the opening 106 into the enclosure 100. The increased surface are of the diffuser 10 allows for increasing the number of EMI attenuating apertures that may be utilized for a given inlet opening 106. In one embodiment, the total open area of the EMI apertures is greater than the open area of the air inlet opening. In such an embodiment, the EMI apertures provide low impedance to airflow through the diffuser 10 and increased airflow in conjunction with EMI attenuation may be realized.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: December 27, 2011
    Assignee: Flextronics Sales and Marketing (A-P) Ltd
    Inventors: Paul Holdredge, James R. Hamstra
  • Patent number: 8076590
    Abstract: A printed circuit board includes a first signal via, a second signal via, and a first ground via. A distance between the first ground via and the first signal via is substantially equal to a distance between the first ground via and the second signal via.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: December 13, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hui-Chen Zhao, Qing-Lin Zhou
  • Patent number: 8072774
    Abstract: An apparatus includes a substrate which includes an electronic component mounted on the substrate, the electronic component for processing a pair of signals, the substrate including a first wire for transmitting one of the signals, the first wire being formed on a first layer of the substrate, and a second wire for transmitting another one of the signals, the second wire being formed on a second layer of the substrate in a first region under the electronic component and being formed on a third layer in a second region of an other part of the first region.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: December 6, 2011
    Assignee: NEC Corporation
    Inventor: Tomokazu Tokoro
  • Patent number: 8072775
    Abstract: A printed circuit board includes a signal layer and a voltage source layer. The signal layer includes a connecting area. The voltage source layer includes an isolation area corresponding to the connecting area. The isolation area is used for preventing interference caused by a pulsing current in the connecting area from affecting the voltage source layer.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: December 6, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Xiang Zhang
  • Patent number: 8068347
    Abstract: Disclosed herein is a printed circuit board having an RF module power stage circuit embedded therein. Specifically, this invention relates to a printed circuit board having an RF module power stage circuit embedded therein, in which a terminal pad for a resistor, a bead, or an inductor is defined or formed on a power supply plane of a multilayered wired board to connect the resistor, the bead, or the inductor to the power supply plane, and the resistor, the bead, or the inductor is connected in parallel with a decoupling capacitor by using a via hole or by embedding the resistor, the bead or the inductor perpendicular to the power supply plane, thus decreasing the size of the RF module and improving the performance thereof.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: November 29, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd
    Inventors: Don Chul Choi, Jae Cheol Ju, Dong Hwan Lee, Sang Soo Park, Hee Soo Yoon
  • Patent number: 8053675
    Abstract: Printed wiring board (PWB) provides for reduction in pin counts required for power plane (including ground plane) connections and/or reduction in requirements for connector current handling per pin. Multiple collinear slots in the form of a dashed line are introduced in the metal layer implementing the power plane that alter the current distribution in the power plane and improve the strength of the PWB. The per-pin current profile for connector pins connected to the power plane is equalized by tuning the length of the slot(s). The slots are dashed and may be made internal to the power plane metal layer to avoid weakening the metal layer for laminated multi-layer PWBs and may be shaped around a connector end when the power plane pin allocation is not uniform at the connector ends. The resulting equalization reduces either pin count required for carrying the power plane current or reduces connector pin current requirements.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: November 8, 2011
    Assignee: International Business Machines Corporation
    Inventors: Hubert Harrer, Andreas Huber, Thomas-Michael Winkel
  • Patent number: 8050044
    Abstract: A power plane includes a first circuit region and a second circuit region. The length of the first circuit region or second circuit region is related to the noise frequency to be filtered out. The width of the first circuit region can be wider or narrower than the width of the second circuit region. While manufacturing the power plane, a predetermined length is decided according to the resonance frequency of an original power plane, then the proposed power plane is formed with the first circuit region and the second circuit region of a predetermined length, and making the width of the first circuit region wider or narrower than the width of the second circuit region, such that the noises with the resonance frequency can be mitigated.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 1, 2011
    Assignee: Inventec Corporation
    Inventor: Yen-Hao Chen
  • Patent number: 8040684
    Abstract: A package for providing electromagnetic shielding for microwave circuits. The package includes a top board having an upper surface, a lower surface opposite to the upper surface and a side surface joining the upper surface and the lower surface, and a bottom board having an upper surface attached to the lower surface of the top board, a lower surface opposite to the upper surface and an outer side surface joining the upper surface and the lower surface. The top board further includes at least one ground layer formed therein and a first metal coating formed on at least part of the side surface of the top board. The bottom board includes an inner side surface extending from the upper surface of the bottom board toward the lower surface of the bottom board and an inner lower surface joining the inner side surface, thereby providing an inner space for accommodating the microwave circuit.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: October 18, 2011
    Assignee: Honeywell International Inc.
    Inventors: Nan Wang, Shixiong Fan
  • Patent number: 8035991
    Abstract: Disclosed are an electromagnetic bandgap structure and a printed circuit board that can solve a mixed signal problem between an analog circuit and a digital circuit. The electromagnetic bandgap structure in which a first metal layer, a first dielectric layer, a second dielectric layer and a second metal layer are stacked can include a first metal plate, formed between the first dielectric layer and the second dielectric layer; a second metal plate, formed on a same planar surface as the first metal plate, accommodated into a hole which is formed in the first metal plate and electrically connected to the first metal plate through a metal line; and a via, connecting the second metal plate to any one of the first metal layer and the second metal layer. With the present invention, the electromagnetic bandgap structure can be not only miniaturized but also have a low bandgap frequency.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: October 11, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Han Kim, Jae-Joon Lee, Mi-Ja Han, Dae-Hyun Park
  • Patent number: 8035993
    Abstract: A circuit board including a first patterned metal layer and a second patterned metal layer is provided. The first patterned metal layer has metal blocks and spiral structures. A gap is kept between any two adjacent metal blocks. Each of the spiral structures is electrically connected between any two adjacent metal blocks. The second patterned metal layer is disposed beside the first patterned metal layer and has jumper segments. Each of the jumper segments has a first end and a second end opposite to the first end. Each of the spiral structures has an outer end and an inner end. The outer end is connected to one of the two adjacent metal blocks. The inner end is electrically connected to the first end of one of the jumper segments, and the second end of the jumper segment is electrically connected to the other one of the two the metal blocks.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: October 11, 2011
    Assignee: Tatung Company
    Inventors: Shih-Chieh Chao, Chih-Wen Huang, Chun-Lin Liao
  • Patent number: 8035980
    Abstract: A circuit structure for modifying characteristic impedance by using different reference planes is provided. The structure comprises an analog signal line, a digital signal line, a corresponding reference plane for analog signals and a corresponding reference plane for digital signals. Wherein, the line width of the analog signal line is the same as that of the digital signal line. In addition, the distance between the analog signal line and the corresponding analog signal reference plane is longer than the distance between the digital signal line and the corresponding digital signal reference plane. Accordingly, the characteristic impedance mismatch during signal transmission can be solved and the quality of signal transmission can be improved.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: October 11, 2011
    Inventors: Yu-Chiang Cheng, Kuo-Ming Chuang
  • Patent number: 8035981
    Abstract: A semiconductor device includes a semiconductor element, a supporting substrate where the semiconductor element is mounted, and a capacitor provided on the semiconductor element and coupled to the supporting substrate via an outside connection terminal. The capacitor includes a valve metal part, an anodic oxide film formed on a surface of the valve metal part, and a conductive part formed on the anodic oxide film and made of a conductive material.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: October 11, 2011
    Assignee: Fujitsu Limited
    Inventors: Takeshi Shioga, Kazuaki Kurihara
  • Patent number: 8027171
    Abstract: Provided is a power feeding structure of an electrostatic chuck including a lower insulation layer, an electrode layer and a surface insulation dielectric layer formed on an upper surface side of a metal substrate in order from the metal substrate, in which the lower insulation layer, the electrode layer and the surface insulation dielectric layer are not cracked easily.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: September 27, 2011
    Assignee: Creative Technology Corporation
    Inventors: Kinya Miyashita, Yoshihiro Watanabe
  • Patent number: 8007673
    Abstract: An adhesive layer, an insulating layer and a copper foil are laminated together on both surfaces of a metallic base material by way of for example thermal press molding. In this case, openings (window holes) are formed in opposed positions on a portion of the adhesive layer. A circuit pattern is formed by etching on the copper foil in this state, followed by an external shape machining step of executing separation treatment reaching the metallic base material in predetermined positions including the openings. After that, a part of the insulating layer is cut off along the edge of the opening to obtain a circuit board with the end of the metallic base material exposed.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: August 30, 2011
    Assignee: Yazaki Corporation
    Inventors: Hiroyuki Fujita, Yasutaka Ochiai, Minoru Kubota
  • Patent number: 8008580
    Abstract: A flexible printed circuit board (FPCB) includes a signal layer, upper and lower ground layers, and two dielectric layers. The signal layer includes a differential pair comprising two transmission lines to transmit a pair of differential signal. The dielectric layers are respectively located on and under the signal layer to sandwich the signal layer. The upper ground layer is attached to the dielectric layer on the signal layer. The lower ground layer is attached to the dielectric layer under the signal layer. Each ground layer defines a void therein aligning with the differential pair. Dielectric coefficients of the two dielectric layers are different.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: August 30, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Shou-Kuo Hsu
  • Patent number: 8009438
    Abstract: Embodiments of the present technique are directed to a backplane infrastructure. The backplane infrastructure may include a passive power backplane configured to distribute power and comprising a first set of alignment holes, a signal backplane configured to route interface signals and comprising a second set of alignment holes and a set of common alignment pins, each alignment pin having an axis, wherein the set of common alignment pins are inserted into the first set of alignment holes and the second set of alignment holes to align the passive power backplane and the signal backplane about the axis.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: August 30, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin B. Leigh, Jonathan E. James Ou, David W. Sherrod, Kurt A. Manweiler, Miles B. Reyes, Gregory L. Gibson, Stephen A. Kay, Vincent W. Michna
  • Patent number: 8009439
    Abstract: An electrical assembly (300, 400) includes a power IC such as a MOSFET (112, 412) attached to a substrate module (114, 214). The MOSFET includes a top surface comprising first and second conductive device surfaces (A, B), associated with first and second device ports, and a bottom surface comprising a third conductive device surface C associated with a third device port. A first foil element is bonded to the first conductive device surface(s) A and to each of the first conductive substrate surfaces (A1, A2) and provides a continuous conductive pathway from each conductive surface (A) to each other conductive surface (A) and to each conductive surface (A1, A2). A second foil element is bonded to the second conductive device surface(s) B and to the second conductive substrate surface B1 and provides a continuous conductive pathway from each device conductive surface (B) to the substrate conductive surface (B1).
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: August 30, 2011
    Assignee: Raytheon Company
    Inventor: Keith V. Guinn
  • Patent number: 8004854
    Abstract: Embodiments of the present invention provide an electronic device. The electronic device includes a circuit board. A first circuit is disposed on a first side of the circuit board. The first circuit is connected to a first ground plane of the circuit board. A second circuit is disposed on a second side of the circuit board. The second side is opposite the first side, and the second circuit is connected to a second ground plane of the circuit board. Moreover, the first and second ground planes respectively lie in different planes of the circuit board and are electrically interconnected by a conductive trace disposed within the circuit board.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: August 23, 2011
    Assignee: ADC DSL Systems, Inc.
    Inventor: Janusz M. Kucharski
  • Patent number: 7999387
    Abstract: A transition layer 38 is provided on a die pad 22 of an IC chip 20 and integrated into a multilayer printed circuit board 10. Due to this, it is possible to electrically connect the IC chip 20 to the multilayer printed circuit board 10 without using lead members and a sealing resin. Also, by providing the transition layer 38 made of copper on an aluminum pad 24, it is possible to prevent a resin residue on the pad 24 and to improve connection characteristics between the die pad 24 and a via hole 60 and reliability.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: August 16, 2011
    Assignee: IBIDEN Co., Ltd.
    Inventors: Hajime Sakamoto, Dongdong Wang
  • Patent number: 7989708
    Abstract: In a multi-layer wiring board in which board wirings are arranged in a plurality of wiring layers so as to be connected via a through hole, two through holes are provided in parallel, and two through holes are connected therebetween in both end portions of the respective through holes or one end portion thereof by the wiring board.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: August 2, 2011
    Assignee: Hitachi, Ltd.
    Inventor: Yoshifumi Takada
  • Patent number: 7985927
    Abstract: Signal line conductors passing through vertical vias in an insulative substrate for supporting and interconnecting integrated circuit chips are provided with shielding conductors in adjacent vias that link respective power and ground planes. The shielding conductors' presence in positions around a signal via is made possible through the employment of power plane and ground plane conductive grids that are laid out in rhomboid patterns. The power plane and ground plane grids possess a left-right mirror relation to one another and are displaced to place the rhomboid's corners to avoid overlapping any of the grid lines.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: July 26, 2011
    Assignee: International Business Machines Corporation
    Inventors: Wiren D. Becker, Zhaoqing Chen, George Katopis
  • Patent number: RE42658
    Abstract: A multi-chip module (MCM) provides power circuitry on a computer motherboard in a package of reduced size without sacrificing performance. The MCM co-packages essential power circuit components on a ball grid array (BGA) substrate. Two power MOSFETs disposed on the BGA substrate are connected in a half-bridge arrangement between an input voltage and ground. A MOSFET gate driver is electrically connected to respective gate inputs of the two power MOSFETs for alternately switching the power MOSFETs to generate an alternating output voltage at a common output node between the power MOSFETs. At least one Schottky diode is disposed on the BGA substrate and connected between the common output node and ground to minimize losses during deadtime conduction periods. The input capacitor of the circuit is contained within the MCM housing and is located close to the MOSFETs, reducing stray inductance in the circuit. The MCM package is thin and has dimensions of about 1 cm by 1 cm or less.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: August 30, 2011
    Assignee: International Rectifier Corporation
    Inventor: David Jauregui