Patents Assigned to RENESAS
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Publication number: 20100229161Abstract: A compile technique is provided for multicore allocation, by which a desired running performance can be achieved. The steps of analyzing a taskization directive, taskizing a specified part, and assigning a specified CPU the task are adopted for the compile technique. According to the program-to-tasks-decomposition compile technique, the multicore decomposition is performed by allocating tasks to CPUs individually while following a task decomposition directive of a main part designated by a user. When no direction is issued concerning a CPU to be allocated, the relation with a principal task is judged from the relation of invocation and the dependency, and CPU to be allocated, and then the CPU to be allocated is determined. In allocation to the CPU, an efficient multicore-task decomposition is achieved in consideration of copy and assignment of one processing to more than one CPU while figuring in the balance between processing speed and resources.Type: ApplicationFiled: January 27, 2010Publication date: September 9, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventor: Noriyasu MORI
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Publication number: 20100219537Abstract: A first semiconductor chip and a second semiconductor chip which form a stack are mounted on a module substrate by deflecting a centre position of the semiconductor chips from the module substrate. In the side where the distance from the edge of the deflected semiconductor chip to the edge of a module substrate is shorter, the electrode pad on the first semiconductor chip and the electrode pad on the second semiconductor chip are directly connected with a wire. In the side where the distance from the edge of the deflected semiconductor chip to the edge of a module substrate is longer, the electrode pad on the first semiconductor chip and the electrode pad on the second semiconductor chip are combined with the corresponding bonding lead on the module substrate with a wire.Type: ApplicationFiled: May 14, 2010Publication date: September 2, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Hiroshi Kuroda, Katsuhiko Hashizume
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Publication number: 20100219498Abstract: An isolation oxide film whose upper surface is higher than a surface of a substrate is formed in the substrate. A silicon oxide film is formed on the substrate between the isolation oxide films. A self-aligned polysilicon film is formed on the silicon oxide film between the isolation oxide films. After forming a resist pattern covering the peripheral circuitry, the isolation oxide films in the memory cell are etched by a predetermined thickness. An ONO film is formed on the entire surface of the substrate, a second resist pattern covering the memory cell is formed. Then, the ONO film, the polysilicon film 8 and the silicon oxide film 7 are removed from the peripheral circuitry.Type: ApplicationFiled: August 7, 2009Publication date: September 2, 2010Applicant: RENESAS TECHNOLOGY CORPORATIONInventor: Shu SHIMIZU
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Publication number: 20100217943Abstract: A microcontroller in which respective CPUs execute different applications so as to improve processing performance, and the respective CPUs execute an application that requires safety and mutually compare the results thereof so as to enhance the reliability of write data is provided. The microcontroller has a plurality of processing systems made up of a first CPU, a second CPU, a first memory and a second memory, and for the instruction processing about specific processing set in advance, the write to peripheral modules which are not multiplexed is executed twice, and the write data of the first time and the second time are mutually collated.Type: ApplicationFiled: February 17, 2010Publication date: August 26, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Hiromichi YAMADA, Yuichi ISHIGURO, Nobuyasu KANEKAWA
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Publication number: 20100213594Abstract: A semiconductor device having a structure in which the structure is laminated in many stages is made thin. A reforming area is formed by irradiating a laser beam, where a condensing point is put together with the inside of the semiconductor substrate of a semiconductor wafer. Then, after applying the binding material of liquid state to the back surface of a semiconductor wafer by a spin coating method, this is dried and a solid-like adhesive layer is formed. Then, a semiconductor wafer is divided into each semiconductor chip by making the above-mentioned reforming area into a division origin. By pasting up this semiconductor chip on the main surface of the other semiconductor chip by the adhesive layer of the back surface, a semiconductor device having a structure in which the semiconductor device is laminated in many stages is manufactured.Type: ApplicationFiled: May 4, 2010Publication date: August 26, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Tomoko Higashino, Chuichi Miyazaki, Yoshiyuki Abe
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Publication number: 20100214833Abstract: For example, one memory cell is configured using two memory cell transistors and one phase change element by disposing a plurality of diffusion layers in parallel to a bit-line, disposing gates between the diffusion layers so as to cross the bit-line, disposing bit-line contacts and source contacts alternately to the plurality of diffusion layers arranged in a bit-line direction for each diffusion layer, and providing a phase change element on the source contact. Also, the phase change element can be provided on the bit-line contact instead of the source contact. By this means, for example, increase in drivability of the memory cell transistors and reduction in area can be realized.Type: ApplicationFiled: May 5, 2010Publication date: August 26, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Riichiro Takemura, Kenzo Kurotsuchi, Takayuki Kawahara
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Publication number: 20100207275Abstract: A hybrid integrated circuit device having high mount reliability comprises a module substrate which is a ceramic wiring substrate, a plurality of electronic component parts laid out on the main surface of the module substrate, a plurality of electrode terminals laid out on the rear surface of the module substrate, and a cap which is fixed to the module substrate to cover the main surface of the module substrate. The electrode terminals include a plurality of electrode terminals which are aligned along the edges of the module substrate and power voltage supply terminals which are located inner than these electrode terminals. The electrode terminals aligned along the substrate edges are coated, at least in their portions close to the substrate edge, with a protection film having a thickness of several tens micrometers or less. Connection reinforcing terminals consist of a plurality of divided terminals which are independent of each other, and are ground terminals.Type: ApplicationFiled: April 28, 2010Publication date: August 19, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Shinji MORIYAMA, Tomio YAMADA
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Publication number: 20100203456Abstract: The present invention improves the OPE characteristic generated by the difference between sparse and dense mask patterns and promotes fidelity in the design of the pattern. Because of this, the present invention includes a step of forming a resist having an acid dissociative dissolution suppression group on a substrate, a step of coating the resist with an acid polymer dissolved in an alcohol based solvent and forming an upper layer film, a step of exposing through a mask, a step of performing a baking process, and a step of processing with an alkali developer, and wherein in the step of performing a baking process, a mixing layer is formed on the resist by the upper layer film and in which a thicker mixing layer is formed in an unexposed part of a region where the pattern density of the mask pattern is high compared to a region where the pattern density is low.Type: ApplicationFiled: April 26, 2010Publication date: August 12, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Toshifumi Suganaga, Tetsuro Hanawa, Takeo Ishibashi
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Publication number: 20100193934Abstract: A novel semiconductor device high in both heat dissipating property and connection reliability in mounting is to be provided. The semiconductor device comprises a semiconductor chip, a resin sealing member for sealing the semiconductor chip, a first conductive member connected to a first electrode formed on a first main surface of the semiconductor chip, and a second conductive member connected to a second electrode formed on a second main surface opposite to the first main surface of the semiconductor chip, the first conductive member being exposed from a first main surface of the resin sealing member, and the second conductive member being exposed from a second main surface opposite to the first main surface of the resin sealing member and also from side faces of the resin sealing member.Type: ApplicationFiled: April 13, 2010Publication date: August 5, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Yukihiro Satou, Takeshi Otani, Hiroyuki Takahashi, Toshiyuki Hata, Ichio Shimizu
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Publication number: 20100193863Abstract: Described is a method for fabricating a semiconductor device having an FET of a trench-gate structure obtained by disposing a conductive layer, which will be a gate, in a trench extended in the main surface of a semiconductor substrate, wherein the upper surface of the trench-gate conductive layer is formed equal to or higher than the main surface of the semiconductor substrate. In addition, the conductive layer of the trench gate is formed to have a substantially flat or concave upper surface and the upper surface is formed equal to or higher than the main surface of the semiconductor substrate. Moreover, after etching of the semiconductor substrate to form the upper surface of the conductive layer of the trench gate equal to or higher than the main surface of the semiconductor substrate, a channel region and a source region are formed by ion implantation. The semiconductor device thus fabricated according to the present invention is free from occurrence of a source offset.Type: ApplicationFiled: April 14, 2010Publication date: August 5, 2010Applicants: RENESAS TECHNOLOGY CORP., HITACHI ULSI SYSTEMS, CO., LTD.Inventors: Hiroshi Inagawa, Nobuo Machida, Kentaro Ooishi
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Publication number: 20100194481Abstract: The RF power amplifier circuit including multiple amplification stages has a previous-stage amplifier, a next-stage amplifier and a controller. The previous-stage amplifier responds to an RF transmission input signal. The next-stage amplifier responds to an amplification signal output by the previous-stage amplifier. In response to an output-power-control voltage, the controller controls the former- and next-stage amplifiers in quiescent current and gain. In response to the output-power-control voltage, the quiescent current and gain of the previous-stage amplifier are continuously changed according to a first continuous function, whereas those of the next-stage amplifier are continuously changed according to a second continuous function. The second continuous function is higher than the first continuous function by at least one in degree. The RF power amplifier circuit brings about the effect that the drop of the power added efficiency in low and middle power modes is relieved.Type: ApplicationFiled: January 29, 2010Publication date: August 5, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Masatoshi HASE, Masahiro ITO, Takashi SOGA, Satoshi TANAKA
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Publication number: 20100195382Abstract: 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: ApplicationFiled: April 6, 2010Publication date: August 5, 2010Applicant: RENESAS TECHNOLOGY CORPInventor: Hideto Hidaka
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Publication number: 20100199283Abstract: When a CPU is processing a first task by using an accelerator for use in image processing, if a request for allocating the accelerator to a process of a second task is issued, the CPU sets an interruption flag when the process of the second task is prioritized over a process of the first task, and the accelerator is allowed to be used for the process of the second task when a state in which the interruption flag is set is detected at a timing predetermined in accordance with a process stage of the accelerator for the first task. Since the timing of detecting the set interruption flag is determined in accordance with a progress state of the process of the task to be interrupted, task switching can be made at a timing of reducing overhead for save and return for the process of the task to be interrupted.Type: ApplicationFiled: February 2, 2010Publication date: August 5, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Hideaki KIDO, Shoji MURAMATSU, Yasuhiko HOSHI, Hiroyuki HAMASAKI
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Publication number: 20100191934Abstract: Herein disclosed is a microcomputer MCU adopting the general purpose register method. The microcomputer is enabled to have a small program capacity or a high program memory using efficiency and a low system cost, while enjoying the advantage of simplification of the instruction decoding as in the RISC machine having a fixed length instruction format of the prior art, by adopting a fixed length instruction format having a power of 2 but a smaller bit number than that of the maximum data word length fed to instruction execution means. And, the control of the coded division is executed by noting the code bits.Type: ApplicationFiled: March 18, 2010Publication date: July 29, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Shumpei Kawasaki, Eiji Sakakibara, Kaoru Fukada, Takanaga Yamazaki, Yasushi Akao, Shiro Baba, Toshimasa Kihara, Keiichi Kurakazu, Takashi Tsukamoto, Shigeki Masumura, Yasuhiro Tawara, Yugo Kashiwagi, Shuya Fujita, Katsuhiko Ishida, Noriko Sawa, Yoichi Asano, Hideaki Chaki, Tadahiko Sugawara, Masahiro Kainaga, Kouki Noguchi, Mitsuru Watabe
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Publication number: 20100187679Abstract: Even when a stiffener is omitted, the semiconductor device which can prevent the generation of twist and distortion of a wiring substrate is obtained. As for a semiconductor device which has a wiring substrate, a semiconductor chip by which the flip chip bond was made to the wiring substrate, and a heat spreader adhered to the back surface of the semiconductor chip, and which omitted the stiffener for reinforcing a wiring substrate and maintaining the surface smoothness of a heat spreader, a wiring substrate has a plurality of insulating substrates in which a through hole whose diameter differs, respectively was formed, and each insulating substrate contains a glass cloth.Type: ApplicationFiled: April 2, 2010Publication date: July 29, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Eiji HAYASHI, Kyo GO, Kozo HARADA, Shinji BABA
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Publication number: 20100182847Abstract: A nonvolatile semiconductor memory recovers variation in the threshold of a memory cell due to disturbance related to a word line. The nonvolatile memory continuously performs many writing operations without carrying out single-sector erasing after each writing operation, performing the additional writing operations quicker than the usual writing operation, and lightening the burden imposed on software for use in additional writing. The data stored in a designated sector is read out before being saved in a register, and the selected sector is subjected to single-sector erasing when a predetermined command is given. Then write expected value data is formed from the saved data and data to be additionally written, completing the writing operation.Type: ApplicationFiled: March 18, 2010Publication date: July 22, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Tatsuya Ishii, Hitoshi Miwa, Osamu Tsuchiya, Shooji Kubono
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Publication number: 20100180140Abstract: 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: ApplicationFiled: March 25, 2010Publication date: July 15, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Jun Satoh, Kazushige Yamagishi, Keisuke Nakashima, Koyo Katsura, Takashi Miyamoto, Mitsuru Watabe, Kenichiroh Ohmura
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Publication number: 20100177444Abstract: The present invention provides a VCM driver realizing low power consumption and high accuracy and a PWM amplifier compensating a dead time distortion. A phase compensator, a ?? modulator receiving an output signal of the phase compensator and converting the output signal to a control code of predetermined bits, a PWM modulator receiving the control code to produce a PWM signal, and an output circuit receiving the PWM signal to drive a voice coil constitute a forward path. A sense amplifier sensing a current of the voice coil, an ADC receiving an output signal of the sense amplifier, a low-pass filter receiving an output signal of the ADC, and a decimation filter receiving an output signal of the low-pass filter constitute a feedback path. An output signal of the decimation filter is fed back to the input side of the phase compensator to form a major feedback loop having a first-order characteristic loop gain.Type: ApplicationFiled: March 22, 2010Publication date: July 15, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Yasuhiko Kokami, Hiroshi Kuroiwa
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Publication number: 20100176463Abstract: In order to provide a technique capable of executing an etching process using a dry etching method and a wet etching method in combination with high processing dimensional accuracy, an interlayer insulating film 13, an etching stopper film 14, interlayer insulating films 15 and 18 and a surface protection film 19 are sequentially deposited on a sensor film 12. As the etching stopper film 14, a material different in etching selectivity from the interlayer insulating films 13, 15 and 18 is selected. Next, the surface protection film 19 and the interlayer insulating films 18 and 15 are sequentially dry-etched with using the etching stopper film 14 as an etching stopper, and subsequently, the etching stopper film 14 is dry-etched with using the interlayer insulating film 13 as an etching stopper. Thereafter, the interlayer insulating film 13 is wet-etched with using the sensor film 12 as an etching stopper.Type: ApplicationFiled: May 20, 2008Publication date: July 15, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventors: Koshiro KOIZUMI, Hitoshi SESHIMO, Hideo KINOSHITA
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Publication number: 20100176782Abstract: To provide a power supply apparatus which realizes a high-speed response, a stable operation, and a low output ripple with low power consumption. The first stage switching regulator receives an input voltage and forms a first voltage. The second stage switching regulator receives the first voltage and forms a second voltage. The second stage switching regulator includes an N-phase (N is two or more) switching regulator, and the first voltage is set to be N times a target value of the second voltage. The input voltage is set to be higher than the first voltage.Type: ApplicationFiled: March 26, 2010Publication date: July 15, 2010Applicant: RENESAS TECHNOLOGY CORP.Inventor: Ryotaro Kudo