Patents Represented by Attorney, Agent or Law Firm Skjerven Morrill MacPherson Franklin & Friel
  • Patent number: 6303733
    Abstract: Dielectric compositions encompassing one or more poly(arylene ether) polymers are provided. The dielectric compositions have the repetitive structural unit: where n=1 to 200, Y and Ar are each a divalent arylene radical, Y derived from bisphenol compounds of general formula HO—Y—OH, Ar derived from difluoro diarylacetylenes and/or ethynylated benzophenones of general formula F—Ar—F and Z is optionally hydrogen, a methyl group or derived from a monofluoro-benzophenone derivative of general formula Z—F. Such poly(arylene ether) polymers are employed with a variety of microelectronic devices, for example, integrated circuits and multichip modules.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: October 16, 2001
    Assignee: AlliedSignal Inc.
    Inventors: Kreisler S. Y. Lau, Tian-An Chen, Boris A. Korolev, Emma Brouk
  • Patent number: 6259106
    Abstract: A converter for lithography which generates signals that control a shaping of an electron (or other energy) beam and which includes a translator that translates shape data into shape and position signals, and translates duration information into a duration signal. The converter also includes a retrograde scan circuit coupled to the translator that provides a retrograde signal that adjusts the position signal to offset a raster scan movement of the beam. The shape signals control the shaping of the beam, the position signal specifies a position of the beam for writing the shape on a substrate, and the duration signal specifies a duration of exposure of the beam on the substrate.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: July 10, 2001
    Assignee: Etec Systems, Inc.
    Inventors: Volker Boegli, Stephen A. Rishton, Lee H. Veneklasen
  • Patent number: 6246774
    Abstract: A digital wavetable audio synthesizer including a synthesizer volume generator. The volume generator causing a data sample to be multiplied by volume components that add right offset, left offset, and effects volume to the data. The left and right offsets provide stereo field positioning, and the effects volume is used in generating an echo effect. The data sample can be placed in one of sixteen fixed stereo pan positions, or alternatively the left and right offset values can be programmed to place the data anywhere in the stereo field. The synthesizer includes a register array programmed with right and left offset values for providing wavetable data with right and left offset volume components.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: June 12, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventors: David Norris, David N. Suggs
  • Patent number: 6240046
    Abstract: A high performance random access memory integrated circuit is disclosed in several embodiments, along with various embodiments of associated supporting circuitry, which offers significant power savings in read operations. The integrated circuit is capable of retrieving data words from a memory array either one data word in a single clock cycle or more than one data word in a single clock cycle. For random memory reads, retrieving one data word from the memory array in a clock cycle where the memory array is accessed in response to each read request saves power over retrieving more than one data word from the memory array in the clock cycle. Conversely, if read requests are burst requests (i.e., a first read request immediately followed by advance requests), power is saved by retrieving more than one data word in a clock cycle where the memory array is accessed.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: May 29, 2001
    Assignee: Integrated Device Technology, Inc.
    Inventor: Robert J. Proebsting
  • Patent number: 6204596
    Abstract: An electron-emitting device contains a lower conductive region (22), a porous insulating layer (24A, 24B, 24D, 24E, or 24F) overlying the lower conductive region, and a multiplicity of electron-emissive elements (30, 30A, or 30B) situated in pores (281) extending through the porous layer. The pores are situated at locations substantially random relative to one another. The lower conductive region typically contains a highly conductive portion (22A) and an overlying highly resistive portion (22B). Alternatively or additionally, a patterned gate layer (34B, 40B, or 46B) overlies the porous layer. Openings (36, 42, or 541) corresponding to the filaments extend through the gate layer at locations generally centered on the filaments such that the filaments are separated from the gate layer.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: March 20, 2001
    Assignee: Candescent Technologies Corporation
    Inventors: John M. Macaulay, Peter C. Searson, Robert M. Duboc, Jr., Christopher J. Spindt
  • Patent number: 6201343
    Abstract: An electron-emitting device contains an emitter electrode (12), a group of sets of electron-emitting elements (24), a group of control electrodes (28), and a focusing system (37) for focusing electrons emitted by the electron-emissive elements. The sets of electron-emissive elements are arranged generally in a line extending in a specified direction. Each control electrode has a main portion (30) and a gate portion (32). the electron-emissive elements are exposed through gate openings (36) in the gate portion. The main portion of each control electrode crosses over the emitter electrode and has a large control opening (34) which laterally circumscribes one of the sets of electron-emissive elements. The focusing system has a group of focus openings (40) located respectively above the control openings. Each control opening is largely centered on, or/and is no more than 50% as large as, the corresponding focus opening in the specified direction.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: March 13, 2001
    Assignee: Candescent Technologies Corporation
    Inventors: Christopher J. Spindt, Stephanie J. Oberg, Duane A. Haven, Roger W. Barton, Arthur J. Learn, Victoria A. Bascom
  • Patent number: 6200736
    Abstract: An interrupted development, multi-cycle development process, in combination with an aqueous photoresist developer composition enables development of electron-beam exposed novolak-resin based photoresists with resolution of less than 0.20 &mgr;m, contrast >5, and dark loss less than 10%. The developer composition of this invention includes a metal alkali, a dialkylalkanolamine adjuvant, a surfactant and a buffer.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: March 13, 2001
    Assignee: ETEC Systems, Inc.
    Inventor: Zoilo Cheng Ho Tan
  • Patent number: 6195591
    Abstract: A process controller implements an overall, user-developed control strategy in a process control network that includes distributed controller and field devices, such as Fieldbus and non-Fieldbus devices. A user defines the control strategy by building a plurality of function blocks and control modules and downloading or installing user-specified portions of the control strategy into the Fieldbus devices and the non-Fieldbus devices. Thereafter, the Fieldbus devices automatically perform the downloaded portions of the overall strategy independently of other portions of the control strategy. For example in a process control system that includes distributed field devices, controllers and workstations, portions of the control strategy downloaded or installed into the field devices operate independently of and in parallel with the control operations of the controllers and the workstations, while other control operations manage the Fieldbus devices and implement other portions of the control strategy.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: February 27, 2001
    Assignee: Fisher-Rosemount Systems, Inc.
    Inventors: Mark Nixon, Robert B. Havekost, Larry O. Jundt, Dennis Stevenson, Michael G. Ott, Arthur Webb, Mike Lucas
  • Patent number: 6191460
    Abstract: A static random access memory cell is given increased stability and latch-up immunity by using N-type gate NMOS transistors and P-type gate PMOS transistors in the control and sensing circuits, but using the same gate conductivity type for both the NMOS and PMOS memory cell transistors. For example, both NMOS and PMOS memory cell transistors have N-type gates. Weakening the memory cell load transistors by lightly doping the source and/or drain regions further enhances stability.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: February 20, 2001
    Assignee: Integrated Device Technology, Inc.
    Inventors: Jeong Y. Choi, Chuen-Der Lien
  • Patent number: 6189087
    Abstract: A superscalar complex instruction set computer (“CISC”) processor having a reduced instruction set computer (“RISC”) superscalar core includes an instruction cache which identifies and marks raw x86 instruction start and end points and encodes “pre-decode” information, a byte queue which is a queue of aligned instruction and pre-decode information of the “predicted executed” state, and an instruction decoder which generates type, opcode, and operand pointer values for RISC-like operations (ROPs) based on the aligned pre-decoded x86 instructions in the byte queue and determines the number of possible x86 instruction dispatch for shifting the byte que. The instruction decoder includes in each dispatch position a logic conversion path, a memory conversion path, and a common conversion path for converting CISC instructions to ROPs.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: February 13, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventors: David B. Witt, Michael D. Goddard
  • Patent number: 6185991
    Abstract: A microscope uses electrostatic force modulation microscopy to measure mechanical and electrical characteristics of a sample. A tip contacts the sample while a voltage (which may have dc and ac components) is applied between the tip and sample. The tip oscillates even though the tip is contacting the sample due to strong electrostatic force interaction between the tip and sample. Different characteristics of the sample such as hardness, surface potential, capacitance, surface charge, and so forth, are measured by manipulating the oscillation of the tip relative to the sample and monitoring the position of the tip.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: February 13, 2001
    Assignee: PSIA Corporation
    Inventors: Jaewan Hong, Sang-il Park, Zheong-Gu Khim
  • Patent number: 6183349
    Abstract: A burnishing head for burnishing the surface of magnetic or magneto-optical memory disks is described. The burnishing head comprises a plurality of curved burnishing pads symmetrically arranged on the bottom surface of the head. In one embodiment, there are thirteen circular burnishing pads symmetrically arranged on the bottom surface of a square burnishing pad in such a way that there is no dedicated leading edge of the burnishing head. The area between the curved burnishing pads is wide enough to allow the free flow of air to help the escape of debris created during burnishing. The burnishing head has no tapered leading edge. The burnishing pad flies parallel to the surface of the disk in a level manner, such that all burnishing pads are simultaneously used.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: February 6, 2001
    Assignee: Marburg Technologies, Inc.
    Inventors: Margelus A. Burga, Alexander A. Burga
  • Patent number: 6183940
    Abstract: A method of retaining the integrity of a photoresist pattern is provided where the patterned photoresist is treated prior to etching the principle layer. The pre-etch treatment encompasses a plasma treatment. In some embodiments employing an anti-reflective coating (ARC) layer, an isolation/protective layer is used to isolate the ARC from the photoresist. In some embodiments, the pre-etch treatment, advantageously provides for patterning the isolation/protection layer.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: February 6, 2001
    Assignee: Integrated Device Technology, Inc.
    Inventors: Chen-Yu Wang, Tseng You Syau, Ching-Kai Lin
  • Patent number: 6185226
    Abstract: A repeater interface controller (“RIC”) integrated circuit with integrated filters and buffer drivers is provided for use in a repeater. In one embodiment, the RIC uses two filters to filter link pulse signals and data signals for a plurality of ports. Thus, the RIC is able to concurrently provide filtered link pulses to some ports and filtered data signals to other ports. Further, because only two filters are used, the area required to implement the plurality of ports is reduced relative to conventional repeaters that use a filter for each port. In another embodiment of the present invention, a RIC includes a logic circuit and a plurality of analog multiplexers and twisted pair buffer drivers. The analog multiplexers receive signals on their input lines and select which of these signals are passed to the buffer drivers to be outputted.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: February 6, 2001
    Assignee: National Semiconductor Corp
    Inventors: Para K. Segaram, Roy T. Myers, Jr.
  • Patent number: 6180698
    Abstract: A liquid chemical formulation suitable for making a thin solid polycarbonate film of highly uniform thickness is formed with polycarbonate material, a liquid that dissolves the polycarbonate, and possibly one or more other constituents. The liquid is typically capable of dissolving the polycarbonate to a concentration of at least 1% at 20° C. and 1 atmosphere. The liquid also typically has a boiling point of at least 80° C. at 1 atmosphere. Examples of the liquid include pyridine, a ring-substituted pyridine derivative, pyrrole, a ring-substituted pyrrole derivative, pyrrolidine, a pyrrolidine derivative, and cyclohexanone. In forming the polycarbonate-containing film, a liquid film (36A) of the liquid chemical formulation is formed over a substructure (30). The liquid film is processed to largely remove the liquid and convert the polycarbonate into a solid film (38).
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: January 30, 2001
    Assignees: Candescent Technologies Corporation, Hewlett-Packard Company
    Inventors: John D. Porter, Scott J. Crane, Stephanie J. Oberg, Anthony W. Johnson
  • Patent number: 6176265
    Abstract: Pick-up tools and other devices for handling semiconductor wafers are require to be capable of withstanding corrosive chemical substances and extreme temperatures, and the valve unit for use in such devices must meet these requirements. The valve unit is also desired to be free from electrostatic charging. To this end, the valve unit comprises a valve main body, having a valve seat defined therein, which is made of relatively electroconductive and self-lubricating material such as PTFE, and a valve case which is injection molded around the valve unit and made of a material having some electroconductivity and a high resistance against deformation such as PEEK mixed with carbon fibers. Provision of annular grooves on the outer surface of the valve main body improves the attachment between the valve main body and the valve case so as to improve both the sealing performance and the mechanical integrity of the valve unit.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: January 23, 2001
    Inventors: Kiyoshi Takahashi, Kazuo Takahashi
  • Patent number: D436580
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: January 23, 2001
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventors: Hiroaki Navano, Norman P. Katz, Hiroyuki Shinkai, Junichi Nakamura
  • Patent number: D438179
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: February 27, 2001
    Inventor: Chi Wang-Tsai
  • Patent number: D439139
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: March 20, 2001
    Inventor: Kuo-Yung Kuo
  • Patent number: H1972
    Abstract: An autofocus system for use for instance in a photolithography machine (but not so limited) uses oblique incident optics which transform a defocus of the plane of the wafer whose location is being detected to a lateral shear of the beam. A common path interferometer measures the lateral shear. The common path interferometer is for instance a triangular path interferometer. Since both the signal (object) light beam and the reference light beams transverse almost exactly the same optical path, the system is thereby independent of mechanical vibration or other environmental influence such as temperature variations. Compensation is provided for refractive effects caused by local atmospheric heating immediately above the wafer surface.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: July 3, 2001
    Assignee: Nikon Corporation
    Inventor: Fuyuhiko Inoue