Patents Assigned to RENESAS
  • Publication number: 20090309213
    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: Application
    Filed: June 9, 2009
    Publication date: December 17, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Noriyuki TAKAHASHI, Mamoru SHISHIDO
  • Publication number: 20090310524
    Abstract: The receiver includes a low noise amplifier, a local signal generator, a first mixer, a second mixer, a first amplifier, a second amplifier, a first A/D converter, a second A/D converter, and a signal level detection unit. A detection signal from at least one terminal of the first A/D converter is supplied to an input terminal of the signal level detection unit, thereby generating a reception start signal from the output terminal. Before an RF reception signal is received, a first signal processing unit containing the first mixer, the first amplifier, and the first A/D converter is controlled to an active state, and a second signal processing unit containing the second mixer, the second amplifier, and the second A/D converter is controlled to a low power consumption state. After the RF reception signal is received, the second signal processing unit is controlled to the active state.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 17, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Yusaku KATSUBE, Masaaki YAMADA, Junichi TAKAHASHI
  • Publication number: 20090309218
    Abstract: When a through-hole electrode and a rear-surface wire are formed on a rear surface of a chip, a convex portion is formed on the rear surface of the chip due to a rear-surface wiring pad which is a part of the through-hole electrode and the rear-surface wire. This causes the air leakage when the chip is sucked, and therefore, the reduction of the sucking force of the chip occurs. A concave portion is formed in advance in a region where a rear-surface wiring pad and a rear-surface wire are formed. The rear-surface wiring pad and the rear-surface wire are provided inside the concave portion. Thus, a flatness of the rear surface of the chip is ensured by a convex portion caused by thicknesses of the rear-surface wiring pad and the rear-surface wire, so that the reduction of the sucking force does not occur when the chip is handled.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 17, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Michihiro KAWASHITA, Yasuhiro YOSHIMURA, Naotaka TANAKA, Takahiro NAITO, Takashi AKAZAWA
  • Publication number: 20090309210
    Abstract: The present invention provides a technique capable of suppressing variations in the height of each solder ball where an NSMD is used as a structure for each land. Vias that extend through a wiring board are provided. Lands are formed at the back surface of the wiring board so as to be coupled directly to the vias respectively. The lands are respectively formed so as to be internally included in openings defined in a solder resist. Half balls are mounted over the lands respectively. Namely, the present invention has a feature in that the configuration of coupling between each of the lands and its corresponding via both formed at the back surface of the wiring board is taken as a land on via structure and a configuration form of each land is taken as an NSMD.
    Type: Application
    Filed: April 29, 2009
    Publication date: December 17, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventor: Tadatoshi Danno
  • Publication number: 20090303264
    Abstract: A liquid crystal driving device includes a liquid crystal controller and specific color expansion circuits. The liquid crystal controller generates a liquid crystal drive signal to be supplied to a liquid crystal display panel in response to display data. The specific color expansion circuits generate an image output signal from a low-intensity image input signal corresponding to a specific color by intensifying a gradation using a specified factor. The specific color expansion circuits generate an image output signal from a high-intensity image input signal corresponding to a specific color by intensifying a gradation using another small factor. The image output signal is appropriately intensified by the specific color expansion circuits and is supplied as display data to the liquid crystal controller.
    Type: Application
    Filed: May 22, 2009
    Publication date: December 10, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Goki TOSHIMA, Yasuyuki KUDO, Yoshiki KUROKAWA, Akihito AKAI, Kazuki HOMMA
  • Publication number: 20090299512
    Abstract: In the manufacturing system and the manufacturing method of a semiconductor device using a plasma treatment apparatus, a plasma treatment condition is controlled so that a desired shape is obtained after the plasma processing by using a processing shape prediction model for calculating the shape after the plasma processing from the inspection data of a wafer to be treated prior to the treatment and a response surface model for calculating the processing shape depending on a plasma treatment condition. In this configuration, the processing shape prediction model has an adjustable prediction model coefficient, and this prediction model coefficient is automatically calibrated.
    Type: Application
    Filed: May 21, 2009
    Publication date: December 3, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Junichi TANAKA, Masaru KURIHARA, Masaru IZAWA, Hiromasa ARAI, Yoichi NAKAHARA, Takahiro MARUYAMA, Nobuo FUJIWARA
  • Publication number: 20090294827
    Abstract: A semiconductor memory device includes: a semiconductor substrate; a first impurity region; a second impurity region; a channel region; a first gate formed on a main surface on a side of the first impurity region; a second gate formed on the main surface on a side of the second impurity region, with a second insulating film being interposed; and a third insulating film formed on a side surface of the first gate. An interface between the third insulating film and the semiconductor substrate directly under the third insulating film is located above an interface between the second insulating film and the main surface of the semiconductor substrate directly under the second insulating film. The total number of steps can thus be reduced, and lower cost is achieved.
    Type: Application
    Filed: July 16, 2009
    Publication date: December 3, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventor: Motoi ASHIDA
  • Publication number: 20090297053
    Abstract: The invention aims at reducing the circuit size while maintaining the creation of a predictive image suitable for the intra prediction based on a pipeline processing. The encoding device operable to perform intra prediction in blocks of pixels resulting from division of a frame of a moving image has a pseudo-local-decode-image-creation module for simply encoding an original image, and an intra prediction module for using the created pseudo local decode image to select an intra prediction mode. In the intra prediction based on pipeline processing, the pipeline stage for selecting an intra prediction mode and the pipeline stage for creating predictive image data according to the selected intra prediction mode are separated.
    Type: Application
    Filed: May 4, 2009
    Publication date: December 3, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Katsuyuki NAKAMURA, Toru YOKOYAMA, Shohei SAITO
  • Publication number: 20090297959
    Abstract: A shading area having a transmissivity in the range of 0 to 2% is formed at the center of a clear defect in a wiring pattern of a half tone mask. Semitransparent areas having a transmissivity in the range of 10 to 25% are formed, adjacently to shading area, in areas extending from the inside of the edge of an imaginary pattern having no defect to the outside of the edge. In this way, in the correction of the defect in the half tone mask, the working accuracy tolerable margin of the correction portion of the defect can be made large.
    Type: Application
    Filed: August 6, 2009
    Publication date: December 3, 2009
    Applicant: RENESAS TECHNOLOGY CORPORATION
    Inventors: Yoshikazu NAGAMURA, Kouji Tange, Kouki Hayashi, Hidehiro Ikeda
  • Publication number: 20090294978
    Abstract: To provide a semiconductor device with improved reliability. The semiconductor device includes a wiring board, a microcomputer chip flip-chip bonded over the wiring board via gold bumps, a first memory chip laminated over the microcomputer chip, wires for coupling the first memory chip to the wiring board, an underfill material with which a flip-chip coupling portion of the microcomputer chip is filled, and a sealing member for sealing the microcomputer chip and the first memory chip with resin. Further, the corner of a second opening portion of a solder resist film of the wiring board corresponding to the corner of the chip on the air vent side in charging the underfill material is made close to the microcomputer chip, which can improve the wettability and spread of the underfill material at the second opening portion, thus reducing the exposure of leads to the second opening portion, thereby improving the reliability of the semiconductor device.
    Type: Application
    Filed: April 27, 2009
    Publication date: December 3, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Yusuke OTA, Michiaki SUGIYAMA, Toshikazu ISHIKAWA, Mikako OKADA
  • Publication number: 20090289717
    Abstract: An RF power amplifier has a final-stage amplifier stage which generates an RF transmit output signal, a signal detector which detects an RF transmit output level, a first detector, a second detector and a control circuit. The final-stage amplifier stage includes a transistor and a load element and performs saturation type nonlinear amplification and non-saturation type linear amplification. The first detector and the control circuit maintain the RF transmit output signal approximately constant with respect to a variation in load at an antenna at the saturation type nonlinear amplification. The second detector and the control circuit reduce an increase in the output voltage of the final stage transistor with respect to an overload state of the antenna at the non-saturation type linear amplification.
    Type: Application
    Filed: March 27, 2009
    Publication date: November 26, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Satoshi TANAKA, Tomonori TANOUE
  • Publication number: 20090289965
    Abstract: A liquid crystal driving device is provided, which can reduce the problem of contrast lowering of the liquid crystal display screen due to the decrease of the driving current of LED, by the control which is performed in order to cope with the decrease of the maximum rated current of LED as a light source of the backlight at a high temperature. The liquid crystal driving device includes a liquid crystal driving circuit, a backlight control unit, and display data expansion circuits. The liquid crystal driving circuit generates a liquid crystal driving signal to be supplied to a liquid crystal display panel in response to display data. The backlight control unit reduces driving current of the light emitting diode as a light source of the backlight module to illuminate the liquid crystal display panel, in response to the temperature rise of the liquid crystal display panel.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 26, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Yoshiki KUROKAWA, Yukari KATAYAMA, Yasuyuki KUDO, Akihito AKAI, Hiroyuki NITTA, Kazuki HOMMA
  • Publication number: 20090286174
    Abstract: In an exposure process forming a predetermined circuit pattern of a semiconductor device on a wafer, a resist dimension of the resist pattern formed on a wafer and a focus position in the exposure process at past time are measured, a resist dimension and a focus position of a wafer to which the exposure process is secondly performed are estimated by using measurement results of these measured resist dimension and focus position, and a focus offset value is calculated by using estimated values of these estimated resist dimension and focus position, and then, an exposure dose is calculated as considering this focus offset value, and a resist pattern is formed on the wafer to which the exposure process is performed by using these calculated exposure dose and focus offset value.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 19, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Toshiharu MIWA, Junko KONISHI, Toshihide KAWACHI, Shigenori YAMASHITA, Takeshi TASHIRO, Hidekimi FUDO
  • Publication number: 20090283839
    Abstract: In order to provide a semiconductor device having a field effect transistor with a low power consumption and a high speed by use of the combination of Si and an element such as Ge, C or the like of the same group as Si, a strain is applied by a strain applying semiconductor layer 2 to a channel forming layer I having a channel of the field effect transistor formed therein so that the mobility of carriers in the channel is made larger than the mobility of carriers in that material of the channel forming layer which is unstrained.
    Type: Application
    Filed: July 20, 2009
    Publication date: November 19, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Nobuyuki SUGII, Kiyokazu NAKAGAWA, Shinya YAMAGUCHI, Masanobu MIYAO
  • Publication number: 20090275183
    Abstract: A thermal oxidation method capable of obtaining a high oxidation rate by generating a sufficient enhanced-rate oxidation phenomenon even in a low temperature region is provided. In addition, a thermal oxidation method capable of forming a silicon oxide film having a high reliability even when formed at a low temperature region. A basic concept herein is to form a silicon oxide film by thermal reaction by generating a large amount of oxygen radicals (O*) having a large reactivity without using plasma. More specifically, ozone (O3) and other active gas are reacted, so that ozone (O3) is decomposed highly efficiently even in a low temperature region, thereby generating a large amount of oxygen radicals (O*). For example, a compound gas containing a halogen element can be used as the active gas.
    Type: Application
    Filed: April 24, 2009
    Publication date: November 5, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Toshiyuki Mine, Hirotaka Hamamura
  • Publication number: 20090262575
    Abstract: A tunnel magnetic resistive element forming a magnetic memory cell includes a fixed magnetic layer having a fixed magnetic field of a fixed direction, a free magnetic layer magnetized by an applied magnetic field, and a tunnel barrier that is an insulator film provided between the fixed and free magnetic layers in a tunnel junction region. In the free magnetic layer, a region corresponding to an easy axis region having characteristics desirable as a memory cell is used as the tunnel junction region. A hard axis region having characteristics undesirable as a memory cell is not used as a portion of the tunnel magnetic resistive element.
    Type: Application
    Filed: June 30, 2009
    Publication date: October 22, 2009
    Applicant: RENESAS TECHNOLOGY CORP
    Inventor: Hideto Hidaka
  • Publication number: 20090263940
    Abstract: A cleaning sheet (29) is formed with a trough-hole (29a) at a portion corresponding to a cavity of a mold along with a slit (29b) or a flow cavity cut (29c) at every corner at an outer periphery of the through-hole (29a) and is placed between a first mold half and a second mold half of the mold to clean the inside of the mold, thereby improving the cleaning effect of the mold.
    Type: Application
    Filed: June 30, 2009
    Publication date: October 22, 2009
    Applicants: RENESAS TECHNOLOGY CORP., HITACHI YONEZAWA ELECTRONICS CO., LTD.
    Inventor: Kiyoshi Tsuchida
  • Publication number: 20090258626
    Abstract: A filter circuit includes first capacitors, second capacitors capable of altering a cutoff frequency by being connected in parallel with the first capacitors, first switches for connecting the second capacitors in parallel with the first capacitors, and charging circuits for the second capacitors. The charging circuits include second switches, and resistances for attenuating the amplitudes of input voltages to be fed to the second capacitors, by being connected in series with the second capacitors. The second capacitors are charged through the resistances in a state where the first switches are turned OFF and where the second switches are turned ON. Thus, a DC offset which is ascribable to the cutoff frequency switching of a filter is reduced.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 15, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Masaaki YAMADA, Yusaku KATSUBE, Junichi TAKAHASHI, Toshihito HABUKA, Fumihito YAMAGUCHI
  • Publication number: 20090251965
    Abstract: A transistor is arranged for electrically isolating a sense amplifier formed of a thin film transistor from a data line electrically coupled to the sense amplifier. When a write driver drives the data line, a control signal is applied to isolate the data line from the sense amplifier.
    Type: Application
    Filed: June 12, 2009
    Publication date: October 8, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Taku OGURA, Tadaaki YAMAUCHI, Takashi KUBO
  • Publication number: 20090245004
    Abstract: In order to implement a memory having a large storage capacity and a reduced data retention current, a non-volatile memory, an SRAM, a DRAM, and a control circuit are modularized into one package. The control circuit conducts assignment of addresses to the SRAM and DRAM, and stores data that must be retained over a long period of time in the SRAM. In the DRAM, a plurality of banks are divided into two sets, and mapped to the same address space, and sets are refreshed alternately. A plurality of chips of them are stacked and disposed, and wired by using the BGA and chip-to-chip bonding.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 1, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Kazushige Ayukawa, Seiji Miura, Yoshikazu Saitou