Patents Assigned to Renesas Technology
  • Patent number: 7571198
    Abstract: A dynamically reconfigurable processor is provided having a wiring structure which enables flexible mapping of a program to the processor with a small wiring area. A first wire permits a first arrangement of circuit blocks and a second wire provided for changing the arrangement order of the circuit blocks. A switch is provided to switch between the first wire and the second wire. By virtue of this arrangement, a greater variety of calculations can be performed in the circuit without the necessity for increasing the number of operation blocks.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: August 4, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Makoto Sato, Takanobu Tsunoda, Masashi Takada
  • Patent number: 7569890
    Abstract: The manufacturing method of the CMOS type semiconductor device which can suppress the boron penetration from the gate electrode of the pMOS transistors to the semiconductor substrate in the case that boron is contained in the gate electrodes, while enabling the improvement in the NBTI lifetime of the pMOS transistors, without degrading the performance of the nMOS transistors, is offered. The manufacturing method of the CMOS type semiconductor device concerning the present invention has the following process steps. Halogen is introduced to the semiconductor substrate of pMOS transistor formation areas. Next, a gate insulating film is formed on the semiconductor substrate of the pMOS transistor formation areas. Next, nitrogen is introduced to the gate insulating film.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: August 4, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Shimpei Tsujikawa, Yasuhiko Akamatsu, Hiroshi Umeda, Jiro Yugami, Masaharu Mizutani, Masao Inoue, Junichi Tsuchimoto, Kouji Nomura
  • Patent number: 7570515
    Abstract: An electrically alterable non-volatile multi-level memory device and a method of operating such a device, which includes setting a status of at least one of the memory cells to one state selected from a plurality of states including at least first to fourth level states, in response to information to be stored in the one memory cell, and reading the status of the memory cell to determine whether the read out status corresponds to one of the first to fourth level states by utilizing a first reference level set between the second and third level states, a second reference level set between the first and second level states and a third reference level set between the third and fourth level states.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: August 4, 2009
    Assignee: Renesas Technology Corporation
    Inventors: Kunihiro Katayama, Takayuki Tamura, Kiyoshi Inoue
  • Patent number: 7569881
    Abstract: The gate tunnel leakage current is increased in the up-to-date process, so that it is necessary to reduce the gate tunnel leakage current in the LSI which is driven by a battery for use in a cellular phone and which needs to be in a standby mode at a low leakage current. In a semiconductor integrated circuit device, the ground source electrode lines of logic and memory circuits are kept at a ground potential in an active mode, and are kept at a voltage higher than the ground potential in an unselected standby mode. The gate tunnel leakage current can be reduced without destroying data.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: August 4, 2009
    Assignees: Renesas Technology Corporation, Hitachi ULSI Systems Co., Ltd.
    Inventors: Kenichi Osada, Koichiro Ishibashi, Yoshikazu Saitoh, Akio Nishida, Masaru Nakamichi, Naoki Kitai
  • Patent number: 7569476
    Abstract: In manufacturing a semiconductor integrated circuit device, an interconnect trench and a contact hole are formed in an interlayer insulating film formed over a first-level interconnect on a semiconductor substrate, a barrier film is formed inside of the trench and contact hole so that its film thickness increases from the center of the bottom of the hole toward the sidewalls all around the bottom of the contact hole, a copper film is formed over the barrier film, and a second-level interconnect and a connector portion (plug) are formed by polishing by CMP. In this way, the geometrically shortest pathway of an electrical current flowing from the second-level interconnect toward the first-level interconnect through a connector portion (plug) does not coincide with a thin barrier film portion which has the lowest electrical resistance, so that the current pathway can be dispersed and a concentration of electrons does not occur readily.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: August 4, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Kensuke Ishikawa, Tatsuyuki Saito, Masanori Miyauchi, Toshio Saito, Hiroshi Ashihara
  • Patent number: 7570540
    Abstract: In the same row access, a voltage level of word lines WLA and WLB is set to a power supply voltage VDD-Vtp. On the other hand, in different rows access, a voltage level of word line WLA or WLB is set to power supply voltage VDD. Therefore, when both ports PA and PB simultaneously access the same row, the voltage level of word lines WLA, WLB is set to power supply voltage VDD-Vtp. Thus, a driving current amount of a memory cell is reduced, thereby preventing a reduction in a current ratio of a transistor. As a result, deterioration of SNM can be prevented.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: August 4, 2009
    Assignee: Renesas Technology Corp.
    Inventor: Koji Nii
  • Patent number: 7569457
    Abstract: An implantation step of a dopant ion for forming source and drain regions (S and D) is divided into one implantation of a dopant ion for forming a p/n junction with a well region (3), and one implantation of a dopant ion that does not influence a position of the p/n junction between the source and drain regions (S and D) and the well region with a shallow implantation depth and? a large implantation amount. After conducting an activation heat treatment of the dopant, a surface of the source/drain region is made into cobalt suicide 12, so that the source/drain region (S and D) can have a low resistance, and a p/n junction leakage can be reduced.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: August 4, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Shinichi Fukada, Naotaka Hashimoto, Masanori Kojima, Hiroshi Momiji, Hiromi Abe, Masayuki Suzuki
  • Publication number: 20090189245
    Abstract: A semiconductor device according to the invention is a semiconductor device which includes a low dielectric constant film of which the relative dielectric constant is less than 3.5, is provided with one or more seal rings that are moisture blocking walls in closed loop form in a plan view, and where at least one of the seal rings includes a seal ring protrusion portion in inward protruding form in the vicinity of a chip corner.
    Type: Application
    Filed: March 24, 2009
    Publication date: July 30, 2009
    Applicant: Renesas Technology Corporation
    Inventors: Takeshi FURUSAWA, Noriko Miura, Kinya Goto, Masazumi Matsuura
  • Patent number: 7566662
    Abstract: Provided is a method of manufacturing a semiconductor device. After a semiconductor wafer is placed over a wafer stage with which a dry cleaning chamber of a film forming apparatus is equipped, dry cleaning treatment is given over the surface of the semiconductor wafer with a reducing gas. Then, the semiconductor wafer is heat treated at a first temperature of from 100 to 150° C. by using a shower head kept at 180° C. The semiconductor wafer is then vacuum-transferred to a heat treatment chamber, wherein the semiconductor wafer is heat treated at a second temperature of from 150 to 400° C. A product remaining over the main surface of the semiconductor wafer is thus removed. The present invention makes it possible to manufacture a semiconductor device having improved reliability and production yield by reducing variations in the electrical properties of a nickel silicide layer.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: July 28, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Takuya Futase, Hideaki Tsugane, Mitsuo Kimoto, Hidenori Suzuki
  • Patent number: 7566969
    Abstract: To miniaturize a semiconductor device, a package substrate is provided having terminals formed on the main surface, lands formed on the back surface, through holes formed by laser beam machining and arranged at the upper part of each of the lands, and plating films arranged in the through hole to connect the lands with the terminals electrically. A semiconductor chip is mounted on the main surface of the substrate, a conductive wire connects the pad of the chip and the substrate, and solder bumps are formed in the lands. Since the through holes are formed by laser beam machining, the openings of the through holes are small. Further, the through holes have a larger opening on the main surface of the package substrate than the opening on the back surface of the package substrate. Therefore, it becomes possible to arrange a solder bump directly under each of the through holes, and miniaturization can be realized.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: July 28, 2009
    Assignee: Renesas Technology Corp.
    Inventor: Yoshihiko Shimanuki
  • Patent number: 7567454
    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: Grant
    Filed: April 11, 2008
    Date of Patent: July 28, 2009
    Assignee: Renesas Technology Corp.
    Inventor: Hideto Hidaka
  • Patent number: 7567996
    Abstract: A data processor whose level of operation parallelism is enhanced by composing floating-point inner product execution units to be compatible with single instruction multiple data (SIMD) and thereby enhancing the operation processing capability is made possible. An operating system that can significantly enhance the level of operation parallelism per instruction while maintaining the efficiency of the floating-point length-4 vector inner product execution units is to be implemented. The floating-point length-4 vector inner product execution units are defined in the minimum width (32 bits for single precision) even where an extensive operating system becomes available, and compose the inner product execution units to be compatible with SIMD. The mutually augmenting effects of the inner product execution units and SIMD-compatible composition enhances the level of operation parallelism dramatically.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: July 28, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Fumio Arakawa, Tetsuya Yamada
  • Patent number: 7567244
    Abstract: A semiconductor integrated circuit for driving a liquid crystal display, capable of improving the quality of an image displayed by preventing an imbalance between the outputs of a pair of amplifiers for positive voltage and negative voltage for AC driving of the liquid crystal panel and transmission of noise from one amplifier to the other amplifier is realized. A driver circuit that generates and outputs dive signals to be applied to signal lines of the liquid crystal panel includes decoder circuits, each of which selects a gray-scale voltage corresponding to image data. It also includes amplifiers for positive voltage which perform impedance conversion of positive voltages selected by the decoder circuits and amplifiers for negative voltage which perform impedance conversion of negative voltages selected by the decoder circuits.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: July 28, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Shinobu Nohtomi, Toshikazu Tachibana, Shinya Suzuki, Kazuo Okada
  • Patent number: 7565120
    Abstract: In a signal receiving circuit of a direct conversion system applied with a semiconductor integrated circuit for radio communication having a PLL requiring a clock signal, an LNA requiring low-noise receiving characteristics, and others, a variable coupling line is provided between clock signal buffers and at an input stage of the PLL, so that coupling between the variable coupling line and an input terminal of the LNA and coupling between the variable coupling line and a GND terminal of the LNA are made equal to each other at frequencies of higher harmonic waves of a clock signal. When the input terminal and the GND terminal of the LNA are excited at the same phase, since no output occurs at an output terminal of the LNA, an output of the LNA does not contain any higher harmonic wave of a clock signal.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: July 21, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Yutaka Igarashi, Yusaku Katsube, Akio Yamamoto
  • Patent number: 7563663
    Abstract: A method of manufacturing a semiconductor device with NMOS and PMOS transistors is provided. The semiconductor device can lessen a short channel effect, can reduce gate-drain current leakage, and can reduce parasitic capacitance due to gate overlaps, thereby inhibiting a reduction in the operating speed of circuits. An N-type impurity such as arsenic is ion implanted to a relatively low concentration in the surface of a silicon substrate (1) in a low-voltage NMOS region (LNR) thereby to form extension layers (61). Then, a silicon oxide film (OX2) is formed to cover the whole surface of the silicon substrate (1). The silicon oxide film (OX2) on the side surfaces of gate electrodes (51-54) is used as an offset sidewall. Then, boron is ion implanted to a relatively low concentration in the surface of the silicon substrate (1) in a low-voltage PMOS region (LPR) thereby to form P-type impurity layers (621) later to be extension layers (62).
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: July 21, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Kazunobu Ota, Hirokazu Sayama, Hidekazu Oda
  • Patent number: 7563716
    Abstract: A polishing technique wherein scratches, peeling, dishing and erosion are suppressed, a complex cleaning process and slurry supply/processing equipment are not required, and the cost of consumable items such as slurries and polishing pads is reduced. A metal film formed on an insulating film comprising a groove is polished with a polishing solution containing an oxidizer and a substance which renders oxides water-soluble, but not containing a polishing abrasive.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: July 21, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Seiichi Kondo, Yoshio Homma, Noriyuki Sakuma, Kenichi Takeda, Kenji Hinode
  • Patent number: 7563642
    Abstract: A semiconductor wafer is mounted onto a dicing tape, the dicing tape comprising a first tape easy to stretch and a second tape difficult to stretch and provided on the first tape. Thereafter, a ring-shaped jig is mounted onto the dicing tape along the outer periphery of the semiconductor wafer and the semiconductor wafer is diced. Subsequently, the dicing tape is stretched from the outer periphery thereof to widen the spacing between adjacent chips. Thus, the dicing tape is stretched from its outer periphery in a state in which there are formed an area of the dicing tape underlying the semiconductor wafer and easy to stretch and an area of the dicing tape located along the outer periphery of the wafer and difficult to stretch. Consequently, the force of stretching the dicing tape is transmitted to the semiconductor wafer-mounted area of the first tape, thus permitting pickup of each chip in a sufficiently widened state of the spacing between adjacent chip-forming areas.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: July 21, 2009
    Assignee: Renesas Technology Corp.
    Inventor: Tomoko Higashino
  • Patent number: 7564133
    Abstract: A semiconductor device comprises: a lower interconnect formed over a semiconductor substrate; an insulating film formed on the lower interconnect; a via hole penetrating the insulating film to reach the lower interconnect; a first barrier film covering bottom and side surfaces of the via hole; and a metal film filling the via hole covered with the first barrier film. A portion of the first barrier film covering a lower end of the side surface of the via hole is thicker than a portion covering the bottom surface of the via hole.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: July 21, 2009
    Assignees: Panasonic Corporation, Renesas Technology, Corp.
    Inventors: Masakazu Hamada, Kazuyoshi Maekawa, Kenichi Mori
  • Patent number: 7563668
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate (1), an insulating layer (19) on the semiconductor substrate (1), a plurality of contact plugs (16, 66) in the insulating layer (19), and an insulating layer (30) where capacitors (82), a plurality of contact plugs (25, 75), barrier metal layers (27, 87) and copper interconnections (29, 88) are formed. Source/drain regions (9) in the upper surface of the semiconductor substrate (1) are electrically connected to the copper interconnections (29). One of adjacent source/drain regions (59) in the upper surface of the semiconductor substrate (1) is electrically connected to the copper interconnection (88), while the other is electrically connected to the capacitor (82).
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: July 21, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Atsushi Hachisuka, Atsushi Amo, Tatsuo Kasaoka, Shunji Kubo
  • Publication number: 20090179238
    Abstract: In a pixel part, in a first active region, a photodiode and a transferring transistor are formed. In a second active region, a resetting transistor is formed. In a pixel part, in a first active region, a photodiode and a transferring transistor are formed. In a second active region, an amplifying transistor is formed. The first and second active regions are respectively the same in shape in image pixel parts. The resetting transistor and the amplifying transistor are shared by the pixel parts.
    Type: Application
    Filed: March 10, 2009
    Publication date: July 16, 2009
    Applicant: Renesas Technology Corp.
    Inventors: Kunihiko Hara, Hiroshi Kubo, Yasuyuki Endo, Masatoshi Kimura