Patents Assigned to Renesas Technology
  • Patent number: 7253527
    Abstract: A semiconductor chip production method including the steps of: forming a front side recess in a semiconductor substrate; depositing a metal material in the front side recess to form a front side electrode electrically connected to a functional device formed on the front surface; removing a rear surface portion of the semiconductor substrate to reduce the thickness of the semiconductor substrate to a thickness greater than the depth of the front side recess; forming a rear side recess communicating with the front side recess in the rear surface of the semiconductor substrate after the thickness reducing step; and depositing a metal material in the rear side recess to form a rear side electrode electrically connected to the front side electrode for formation of a through-electrode.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: August 7, 2007
    Assignees: Rohm Co., Ltd., Renesas Technology Corporation
    Inventors: Kazumasa Tanida, Yoshihiko Nemoto, Naotaka Tanaka
  • Patent number: 7253670
    Abstract: A phase synchronization circuit comprises: a measurement delay line which includes a plurality of delay elements having different delay times and to which a first clock signal is inputted; a phase comparator line which includes a plurality of phase comparators in accordance with the measurement delay line and to which a signal from the measurement delay line and a second clock signal are inputted so as to measure a transition timing difference between the first clock signal and the second clock signal; and a generation delay line which includes a plurality of delay elements having different delay times in accordance with the measurement delay line and to which a signal from the phase comparator line and a third clock signal are inputted. The delay time of the respective delay elements is fixed.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventor: Yasuhiko Sasaki
  • Patent number: 7254068
    Abstract: Parasitic capacitances formed between bit lines to which signals are to be read out of memory cells and a signal transmission line arranged above them are to be reduced. Second complementary global bit lines for transmitting data read out of memory cells MC via complementary bit lines are arranged above a memory cell array. Each second global bit line is so arranged that a triangle having as its vertexes the center of the section of one of the complementary bit lines, that of the section of the other and that of the section of the second global bit line arranged directly above these complementary bit lines be an isosceles triangle.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: August 7, 2007
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Hiroki Ueno, Takashi Akioka, Kinya Mitsumoto, Akihisa Aoyama, Masao Shinozaki
  • Patent number: 7254069
    Abstract: Column redundancy data storage circuit blocks storing column redundancy data for repairing defective columns are arranged in correspondence to respective memory cell array blocks. The storage data of the column redundancy data storage circuits is transferred to redundancy data hold circuits arranged in spare column decoder bands adjacent to the data paths for transferring internal data, and are decoded for selection of a page in the spare decoder bands during column access. Therefore, it is possible to reduce the occupation area of a fuse program circuit which programs redundancy data for repairing a defective column.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Masaru Haraguchi, Takeshi Fujino
  • Patent number: 7253051
    Abstract: A SRAM of complete CMOS type having its memory cell composed of six MISFETs, in which a pair of local wiring lines for connecting the input/output terminals of CMOS inverters are formed of a refractory metal silicide layer formed over a first conducting layer constituting the individual gate electrodes of the drive MISFETs, the transfer MISFETs and the load MISFETs of the memory cell and in which a reference voltage line formed over the local wiring lines is arranged to be superposed over the local wiring lines to form a capacity element. Moreover, the capacity element is formed between the local wiring lines and the first conducting layer by superposing the local wiring lines over the first conducting layer. Moreover, the local wiring lines are formed by using resistance lowering means such as silicification. In addition, there are made common the means for lowering the resistance of the gate electrode of the transfer MISFETs and the means for forming the local wiring lines.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Shuji Ikeda, Toshiaki Yamanaka, Kenichi Kikushima, Shinichiro Mitani, Kazushige Sato, Akira Fukami, Masaya Iida, Akihiro Shimizu
  • Patent number: 7252910
    Abstract: A mask fabrication time is shortened. By patterning an electron-sensitive resist film coated on a main surface of a mask substrate, a pellicle is mounted on the main surface of the mask substrate immediately after a resist pattern made from an electron beam sensitive resist film and having light-shielding characteristics with respect to exposure light is formed. Subsequently, by irradiating a laser beam to defect made from the electron beam sensitive resist film with the pellicle being mounted on the mask substrate, the defect is removed. Since the defect can be removed without removing the pellicle, the mask fabrication time can be shortened.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: August 7, 2007
    Assignees: Renesas Technology Corp., Dai Nippon Printing Co., Ltd.
    Inventors: Norio Hasegawa, Katsuya Hayano, Shinji Kubo, Yasuhiro Koizumi, Yasushi Kawai
  • Patent number: 7254057
    Abstract: An MTJ memory cell is independently provided with a write word line and a read word line used for data write and data read. By separately arranging read word lines every two regions formed by dividing a memory array in the column direction, it is possible to reduce signal propagation delays of the read word lines and accelerate the data read operation. Activation of each read word line is controlled by a write word line in accordance with a row selection result in a hierarchical manner. A word-line-current control circuit forms and cuts off the current path of a write word line correspondingly to data write and data read.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventor: Hideto Hidaka
  • Patent number: 7254699
    Abstract: The present invention relates generally to microprocessor or microcontroller architecture, and particularly to an architecture structured to handle unaligned memory references. A method is disclosed for loading unaligned data stored in several memory locations, including a step of loading a first part of the unaligned data into a first storage location and rotating the first part from a first position to a second position in the first memory location. Next a second part of the unaligned data is loaded into a second storage location and rotated from one position to another position. Then the first storage location is combined with the second storage location using a logical operation into a result storage location. The storage locations may be, for example, 64-bit registers. The logical operation may be a bit-wise OR operation.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corporation
    Inventor: David E. Shepherd
  • Patent number: 7253011
    Abstract: Provided is a fabrication method of a semiconductor integrated circuit device, which comprises disposing, in a ultrapure water preparing system, UF equipment having therein a UF module which has been manufactured by disposing, in a body thereof, a plurality of capillary hollow fiber membranes composed of a polysulfone membrane or polyimide membrane, bonding the plurality of hollow fiber membranes at end portions thereof by hot welding, and by this hot welding, simultaneously adhering the hollow fiber membranes to the body. Upon preparation of ultrapure water to be used for the fabrication of the semiconductor integrated circuit device, the present invention makes it possible to prevent run-off of ionized amine into the ultrapure water.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: August 7, 2007
    Assignees: Renesas Technology Corp., Hitachi Hokkai Semiconductor, Ltd.
    Inventors: Osamu Takahashi, Kunio Ogasawara
  • Patent number: 7254084
    Abstract: A delay from the release of a low power consumption mode of nonvolatile memory to the restart of read operation is reduced. Nonvolatile memory which can electrically rewrite stored information has in well regions plural nonvolatile memory cell transistors having drain electrodes and source electrodes respectively coupled to bit lines and source lines and gate electrodes coupled to word lines and storing information based on a difference between threshold voltages to a word line select level in read operation, and the nonvolatile memory has a low power consumption mode. In the low power consumption mode, a second voltage lower than a circuit ground voltage and higher than a first negative voltage necessary for read operation is supplied to the well regions and word lines. When boost forming a rewriting negative voltage therein, a circuit node at a negative voltage is not the circuit ground voltage in the low power consumption mode.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Masaaki Terasawa, Yoshiki Kawajiri, Takanori Yamazoe
  • Patent number: 7254735
    Abstract: It is an object to obtain a self-synchronization type block processing apparatus which does not need to optimize a clock path to be distributed to each block in a clock phase management at an upper level, and can suppress an increase in a circuit scale and can minimize an increase in a design period by circuit tuning. A local block control circuit comprises an end detecting section for receiving a plurality of complete signals, a transfer control section for generating a stop signal having a negative logic to determine whether or not a system clock is supplied to a processing block upon receipt of an end signal output from the end detecting section, the system clock and a handshaking control signal, and a logical AND gate for generating an in-block clock based on the stop signal having the negative logic which is output from the transfer control section and the system clock.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventor: Hidehiro Takata
  • Patent number: 7254737
    Abstract: A data processor comprising: a bus control circuit adapted to be interfaced with a synchronous DRAM which can be accessed in synchronism with a clock signal; a plurality of data processing modules coupled to said bus control circuit for producing data and addresses for accessing a memory; and a clock driver for feeding intrinsic operation clocks to said data processing modules and for feeding the clock signal for accessing said memory in synchronism with the operations of said data processing modules to be operated by the operation clock signals, to the outside.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Jun Satoh, Kazushige Yamagishi, Keisuke Nakashima, Koyo Katsura, Takashi Miyamoto, Mitsuru Watabe, Kenichiroh Ohmura
  • Patent number: 7254680
    Abstract: To enhance the speed of first access (read access different in word line from the previous access) to a multi-bank memory, multi-bank memory macro structures are used. Data are held in a sense amplifier for every memory bank. When access is hit to the held data, data latched by the sense amplifier are output to thereby enhance the speed of first access to the memory macro structures. Namely, each memory bank is made to function as a sense amplifier cache. To enhance the hit ratio of such a sense amplifier cache more greatly, an access controller self-prefetches the next address (an address to which a predetermined offset has been added) after access to a memory macro structure so that data in the self-prefetched address are preread by a sense amplifier in another memory bank.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Kazushige Ayukawa, Seiji Miura, Jun Satoh, Takao Watanabe, Kazumasa Yanagisawa, Yusuke Kanno, Hiroyuki Mizuno
  • Patent number: 7254058
    Abstract: A program element has a magnetic layer electrically connected between first and second nodes. At least a portion of the magnetic layer forms a link portion designed to be blown with external laser irradiation. The magnetic layer is provided in the same layer as and with the same structure as a tunneling magneto-resistance element in an MTJ memory cell. An electrical contact between the magnetic layer and respective one of the first and second nodes has the same structure as the electrical contact between the tunneling magneto-resistance element and an interconnection provided in the same metal interconnection layer as respective one of the first and second nodes in the MTJ memory cell.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: August 7, 2007
    Assignee: Renesas Technology Corp.
    Inventor: Hideto Hidaka
  • Publication number: 20070180006
    Abstract: In a parallel operational processing device having an operational processing unit arranged between memory blocks each having a plurality of memory cells arranged in rows and columns, the respective columns of each memory block are alternately connected to the operational processing units on the opposite sides of the memory block. By selecting one word line in one memory block, data can be transferred to two operational processing units. The number of the word lines selected per one operational processing unit is reduced, and power consumption is reduced. The bit operation units and sense amplifiers/write drivers of the operational processing units have arrangement pitch conditions mitigated and are reduced in number, and an isolation region between the memory blocks is not required and the layout area is reduced. Thus, the parallel operational processing device with a layout area and the power consumption reduced, can achieve a fast operation.
    Type: Application
    Filed: January 26, 2007
    Publication date: August 2, 2007
    Applicant: Renesas Technology Corp.
    Inventors: Takayuki Gyoten, Katsumi Dosaka, Hideyuki Noda, Tetsushi Tanizaki
  • Publication number: 20070176708
    Abstract: An impedance conversion device has four conductors arranged so that the first and second conductors form a transmission line having a first characteristic impedance, the third and fourth conductors form a transmission line having the first characteristic impedance, the first and third conductors form a transmission line having a second characteristic impedance, and the second and fourth conductors form a third transmission line having the second characteristic impedance. The second and fourth conductors are interconnected at proximate ends through a resistance equal to the first characteristic impedance. The third and fourth conductors are interconnected at proximate ends through a resistance equal to the second characteristic impedance. The lateral dimensions of the impedance conversion device are small enough to permit insertion in a stacked pair line.
    Type: Application
    Filed: August 9, 2006
    Publication date: August 2, 2007
    Applicants: Oki Electric Industry Co., Ltd., KABUSHIKI KAISHA TOSHIBA, FUJITSU LIMITED, Renesas Technology Corp., KYOCERA Corporation, FUJI XEROX CO., LTD.
    Inventors: Kanji Otsuka, Tamotsu Usami, Yutaka Akiyama
  • Publication number: 20070176298
    Abstract: Heating elements different in heat generating timing are laminated in a stacked state, and the heating element close to a wiring substrate is allowed to function as a heat diffusion plate for another heating element.
    Type: Application
    Filed: January 10, 2007
    Publication date: August 2, 2007
    Applicants: Hitachi, Ltd., Renesas Technology Corp.
    Inventors: Yasuo Osone, Kenya Kawano, Chiko Yorita, Yu Hasegawa, Yuji Shirai, Naotaka Tanaka, Seiichi Tomoi, Hiroshi Okabe
  • Publication number: 20070176266
    Abstract: The present invention provides a semiconductor device capable of suppressing degradation in connection reliability due to the decrease in thickness of a conductive adhesive caused by the movement of a connecting plate in a semiconductor device to which a power transistor is mounted. A step is provided in the thin part of the connecting plate connected to a lead post to lock the connecting plate by contacting the step to the tip of the lead post. Alternatively, a groove is provided in the thin part of the connecting plate to lock the connecting plate by connecting the lead post to only the part of the connecting plate on the tip side from the groove.
    Type: Application
    Filed: December 15, 2006
    Publication date: August 2, 2007
    Applicant: Renesas Technology Corp.
    Inventors: Kenya Kawano, Kisho Ashida, Naotaka Tanaka, Hiroshi Sato, Ichio Shimizu
  • Publication number: 20070176235
    Abstract: In a semiconductor device, a body thick film transistor and a body thin film transistor having a different body film thickness are formed on the same SOI substrate (silicon support substrate, buried oxide film and silicon layer). The body film is formed to be relatively thick in the body thick film transistor, which has a recess structure where the level of the surface of the source/drain regions is lower than the level of the surface of the body region, and thus, the SOI film in the source/drain regions is formed to be as thin as the SOI film in the body thin film transistor. On the other hand, the entirety of the SOI film is formed to have a relatively thin film thickness in the body thin film transistor. In addition, the source/drain regions are formed to penetrate through the silicon layer.
    Type: Application
    Filed: January 25, 2007
    Publication date: August 2, 2007
    Applicant: Renesas Technology Corp.
    Inventors: Mikio Tsujiuchi, Toshiaki Iwamatsu, Shigeto Maegawa
  • Patent number: 7250365
    Abstract: A method of fabrication of a semiconductor integrated circuit device, including polishing the entire area of an edge of a wafer, for example, uses three polishing drums in which a polishing drum polishes the upper surface of the edge of the wafer, a polishing drum polishes the central portion of the edge of the wafer and a polishing drum polishes the lower surface of the edge of the wafer, thereby preventing occurrence of obstacles which cause defoliation of thin films on the edge of the wafer.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: July 31, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Toshiyuki Arai, Ryousei Kawai, Hirofumi Tsuchiyama, Fumiyuki Kanai, Shinichi Nakabayashi