Patents by Inventor Renesas Electronics Corporation

Renesas Electronics Corporation has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140002135
    Abstract: A semiconductor device includes a first pad and a second pad. A first conductivity type transistor is coupled between a first potential and the second pad, and a second conductivity type transistor is coupled between a second potential and the second pad. A comparator includes a first input node coupled to the first pad and a second input node coupled to the second pad. A circuit receives a signal from the first pad or outputs a signal to the first pad, wherein the first pad is coupled to gate electrodes of the first and second conductivity type transistors.
    Type: Application
    Filed: December 11, 2012
    Publication date: January 2, 2014
    Applicant: Renesas Electronics Corporation
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130307036
    Abstract: In a semiconductor chip constituting an LCD driver, a mark is formed in an alignment mark formation region over a semiconductor substrate. The mark is formed in the same layer as that of an uppermost layer wiring (third layer wiring) in an integrated circuit formation region. Then, in the lower layer of the mark and a background region surrounding the mark, patterns are formed. At this time, the pattern Pla is formed in the same layer as that of a second layer wiring and the pattern Pib is formed in the same layer as that of a first layer wiring. Further, the pattern P2 is formed in the same layer as that of a gate electrode, and the pattern P3 is formed in the same layer as that of an element isolation region.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 21, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130272058
    Abstract: The invention provides a semiconductor integrated circuit device provided with an SRAM that satisfies the requirements for both the SNM and the write margin with a low supply voltage. The semiconductor integrated circuit device include: multiple static memory cells provided in correspondence with multiple word lines and multiple complimentary bit lines; multiple memory cell power supply lines that each supply an operational voltage to each of the multiple memory cells connected to the multiple complimentary bit lines each; multiple power supply circuits comprised of resistive units that each supply a power supply voltage to the memory cell power supply lines each; and a pre-charge circuit that supplies a pre-charge voltage corresponding to the power supply voltage to the complimentary bit lines, wherein the memory cell power supply lines are made to have coupling capacitances to thereby transmit a write signal on corresponding complimentary bit lines.
    Type: Application
    Filed: May 1, 2013
    Publication date: October 17, 2013
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130227505
    Abstract: Specific characteristics of a branch structure between a behavioral description and a hardware description, a structural dependence relation therebetween, and the like are extracted and used to shorten the time of processing for equivalence checking, thereby contributing to the shortening of a processing time required for equivalence checking for a high-level description and a behavioral synthesis result. Upon checking of the equivalence of a high-level description and a synthesis result obtained by performing a behavior synthesis on the high-level description according to a behavioral synthesis restriction, correspondence information between flip-flops with a feedback loop in the synthesis result and variables associated therewith with a backward data dependence relation in a high-level description is generated and used.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 29, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: RENESAS ELECTRONICS CORPORATION
  • Publication number: 20130221538
    Abstract: To reinforce power supply wirings without sacrificing the interconnectivity of semiconductor devices. When three wirings are formed in parallel in the same wiring layer and the center wiring among them is shorter than the outer wirings, a projecting portion integrated into the outer wiring is formed utilizing a free space remaining on the extension of the center wiring. For example, when the outer wirings are used as power supply wirings, the power supply wirings can be reinforced by adding the projecting portion. At this time, because the projecting portion is arranged in the free space, the interconnectivity is not sacrificed.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 29, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: RENESAS ELECTRONICS CORPORATION
  • Publication number: 20130224891
    Abstract: Parts of electronic components are not exposed to temperature deviating from an appropriate operation temperature range when an electric characteristic test of a semiconductor module having an interposer substrate over which plural kinds of electronic components are mounted is carried out. A heat sink for an electronic component is incorporated in a lid of a test socket used for an electric characteristic test of an MCM. A heat dissipation sheet is attached to part of the bottom face of the heat sink and an adiabatic sheet is attached to another part. The heat dissipation sheet has thermal conductivity larger than the adiabatic sheet and transfers heat generated from an electronic component of a high heat value to the heat sink during operation. The adiabatic sheet inhibits the heat generated from an electronic component of high heat value from being transferred to another electronic component through the heat sink.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 29, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: RENESAS ELECTRONICS CORPORATION
  • Publication number: 20130222048
    Abstract: A power device possesses a built-in fuse function and can continue to normally operate after a short circuit failure. The power device includes a plurality of output cells, a plurality of bonding wires provided corresponding to the output cells, and a control terminal driving circuit. Each of the output cells includes an output transistor. First side electrodes of the output transistors are commonly coupled to a first power source. Each of second side electrodes of the output transistors is coupled to an output terminal through the corresponding bonding wire. The control terminal driving circuit supplies a drive signal to the control terminals of the individual output transistors to control the output transistors. Each of the bonding wires is designed to be fused and cut if the output transistor included in the corresponding output cell fails and is shorted.
    Type: Application
    Filed: January 10, 2013
    Publication date: August 29, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130224947
    Abstract: The reliability of wirings, each of which includes a main conductive film containing copper as a primary component, is improved. On an insulating film including the upper surface of a wiring serving as a lower layer wiring, an insulating film formed of a silicon carbonitride film having excellent barrier properties to copper is formed; on the insulating film, an insulating film formed of a silicon carbide film having excellent adhesiveness to a low dielectric constant material film is formed; on the insulating film, an insulating film formed of a low dielectric constant material as an interlayer insulating film is formed; and thereafter a wiring as an upper layer wiring is formed.
    Type: Application
    Filed: April 12, 2013
    Publication date: August 29, 2013
    Applicant: Renesas Electronics Corporation
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130222038
    Abstract: A semiconductor integrated circuit includes a bypass circuit that forms a bypass path under a low voltage condition, and the bypass circuit includes first and second bypass MOS transistors respectively placed between drains of first and second PMOS transistors and a ground voltage terminal, each transistor having a gate to which a second power supply voltage is applied, and third and fourth bypass MOS transistors respectively placed between the first and second bypass MOS transistors and the ground voltage terminal, each transistor controlled to be ON and OFF in accordance with an input signal and a voltage condition.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 29, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130221508
    Abstract: An apparatus provides good bonding between a package structure and a substrate and extended solder bonding life, even under heat stress. Of a lead frame to be used for a package structure having a configuration in which a semiconductor chip, an island of the lead frame, and external connection terminals are sealed with a resin from one surface, and the island and the external connection terminals are exposed on the other surface, the external connection terminals include a first external connection terminal disposed at a central part of each of sides of an outer rim of a semiconductor chip mounting region in which the semiconductor chip is to be mounted and a second external connection terminal outside the first external connection terminal at each of the sides of the outer rim of the semiconductor chip mounting region, wherein the first external connection terminal area exceeds the second external connection terminal's.
    Type: Application
    Filed: April 3, 2013
    Publication date: August 29, 2013
    Applicant: Renesas Elecronics Corporation
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130223164
    Abstract: To improve reading accuracy of a sense amplifier circuit and a semiconductor memory device. A sense amplifier circuit includes an N type FET which is a sensing transistor connected between a power supply and a ground via a data line that extends to a memory cell, a resistance element that is connected between a gate of the sensing transistor and the power supply, and a capacitance element that is connected between the gate of the sensing transistor and the ground.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 29, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130221520
    Abstract: A semiconductor chip SC includes an electrode pad PAD. A Cu pillar PIL is formed on the electrode pad PAD. In addition, an interconnect substrate INT includes a connection terminal TER. The connection terminal TER contains Cu. For example, the connection terminal TER is formed of Cu, and is formed, for example, in a land shape. However, the connection terminal TER may not be formed in a land shape. The Cu pillar PIL and the connection terminal TER are connected to each other through a solder layer SOL. The solder layer SOL contains Sn. A Ni layer NIL is formed on either the Cu pillar PIL or the connection terminal TER. The minimum value L of the thickness of the solder layer SOL is equal to or less than 20 ?m.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 29, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130214339
    Abstract: A semiconductor device, including a memory cell region and a peripheral circuit region, comprises an insulating film, having an upper surface formed on a major surface of a semiconductor substrate to extend from a memory cell region to a peripheral circuit region thereof. A capacitor lower electrode is formed in the memory cell region to upwardly extend beyond the upper surface of the insulating film on the major surface of the semiconductor substrate. A capacitor upper electrode is formed on the capacitor lower electrode through a dielectric film, to extend onto the upper surface of the insulating film. The capacitor lower electrode includes a capacitor lower electrode part having a top surface and a bottom surface. The upper surface of the insulating film is located between the top and bottom surfaces of the capacitor lower electrode part.
    Type: Application
    Filed: January 25, 2013
    Publication date: August 22, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130215020
    Abstract: To restrain the amount of information to be saved to the minimum necessary and suppress temporal overhead required for save and return when task switching associated with a priority processing request occurs in a signal processing device for performing multitasking on stream data such as image signals, the signal processing device includes a pointer indicating position information of data in stream data according to progress of processing by a signal processing unit. When priority task processing is requested, the signal processing device saves only a pointer value. At the time of return, based on the saved pointer value the signal processing device obtains position information of output stream data to be outputted next in a returned task, obtains position information, in an input stream, of head input data of all input data that needs to be inputted to the signal processing unit to calculate the data, and resumes the processing.
    Type: Application
    Filed: January 23, 2013
    Publication date: August 22, 2013
    Applicant: Renesas Electronics Corporation
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130214869
    Abstract: A semiconductor device includes: a resistance R whose resistance value varies in response to a substrate temperature variation; a resistance corrector that is coupled in series with the resistance R and switches its resistance value by a preset resistance step width to suppress a resistance value variation of the resistance R; a first voltage generator for generating a first voltage that varies in response to the substrate temperature; a second voltage generator for generating second voltages Vf1 to Vfn?1 for specifying the first voltage at a point when a switching operation of the resistance value of the resistance corrector is performed; and a resistance switch unit for switching the resistance value of the resistance corrector by comparing the first voltage and the second voltages Vf1 to Vfn?1.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 22, 2013
    Applicant: Renesas Electronics Corporation
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130219352
    Abstract: Buffers on a clock tree are reduced, as long as there is enough set-up margin, in order to reduce power consumption in the clock tree. An FF group coupled to a partial tree, which is a part of the clock tree and expanded from the branch point being focused on, is defined as the target FF and the other FFs are defined as non-target FFs. The target buffer of an elimination candidate and the target and non-target FFs are defined so as not to change the slack in principle in a signal propagation path between the non-target FFs even if the buffer is eliminated. The buffer which can be eliminated is specified within a range in each signal propagation path which has a start point at the non-target FF and an end point at the target FF and in each signal propagation path between the target FFs.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 22, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: RENESAS ELECTRONICS CORPORATION
  • Publication number: 20130214348
    Abstract: In a vertical transistor, to raise a drain withstand voltage while lowering an on-resistance. A drift layer 120 is formed above a drain layer 110, and has a first conductivity type. A gate insulating film 170 is formed on a side wall of a concave portion 142. A bottom surface insulating film 172 is formed on a bottom surface of the concave portion 142. A gate electrode 180 is buried in the concave portion 142. A source layer 150 is formed in a channel layer 140. A first conductivity type layer 130 is located between the channel layer 140 and the drift layer 120. An impurity concentration of the first conductivity type layer 130 is higher than an impurity concentration of the drift layer 120.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 22, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: RENESAS ELECTRONICS CORPORATION
  • Publication number: 20130214947
    Abstract: A device including a sample and hold circuit for providing a signal related to an input analogue current signal, by sampling the input analogue current signal and integrating it on capacitive means, thereby charging the capacitive means to a charge value. The capacitive means being configurable to dynamically change its effective capacitance value in order to shape a voltage signal present on the capacitive means such that the charge value remains unchanged. The device also including an analogue-to digital conversion (ADC) and control circuit arranged for performing an ADC of the at least one related signal at the output of the sample and hold circuit into an output digital signal, the ADC and control circuit including successive approximation ADC means for considering the value of the voltage signal on the capacitive means and converting the charge value present in the capacitive means into the digital output signal.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 22, 2013
    Applicants: RENESAS ELECTRONICS CORPORATION, IMEC
    Inventors: IMEC, RENESAS ELECTRONICS CORPORATION
  • Publication number: 20130219095
    Abstract: Provided is an arbitration circuit included in a host controller that can be connected to a plurality of external devices via a plurality of pipe control circuits. The arbitration circuit includes an available state information storage unit that stores available state information. The available state information indicates an available state of the plurality of pipe control circuits and is updated by the pipe control circuit by a unit of data transfer of a predetermined communication size. The arbitration circuit further includes an arbitration unit that refers to the available state information storage unit, selects the arbitrary pipe control circuit from the available pipe control circuit, and allocates the selected pipe control circuit to the external device, while updating the available state information storage unit.
    Type: Application
    Filed: March 29, 2013
    Publication date: August 22, 2013
    Applicant: Renesas Electronics Corporation
    Inventor: Renesas Electronics Corporation
  • Publication number: 20130214946
    Abstract: An ADC includes sampling means for sampling an input voltage signal, comparator(s) for receiving the sampled signal, and a DAC including circuitry for generating a search signal approximating the input signal and a calibration signal. The search signal and the calibration signal are to be applied to a comparator. The ADC also includes a search logic block for receiving a comparator output signal, for providing input to the DAC for generating the search signal, and for producing a digital output signal. Further, the ADC includes a calibration logic block for producing a control signal to control the circuitry of the DAC and including processing means for observing the output signal, for comparing the output signal with a desired output, and for compensating analogue non-idealities of the ADC. The DAC circuitry is adapted for generating the calibration signal in accordance with the control signal and with the sampled input signal.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 22, 2013
    Applicants: RENESAS ELECTRONICS CORPORATION, IMEC
    Inventors: IMEC, Renesas Electronics Corporation