Patents Represented by Attorney, Agent or Law Firm James M Trygg
  • Patent number: 4598462
    Abstract: A semiconductor device and method for making same having dielectrically isolated individual elements such as transistors, diodes, et al. Some of the isolated elements having fuses formed integral thereto.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: July 8, 1986
    Assignee: RCA Corporation
    Inventor: Hosekere S. Chandrasekhar
  • Patent number: 4597646
    Abstract: An apparatus for consistently and automatically positioning the point of a stylus within the field of view and at the focal point of a high power microscope while the stylus remains in the stylus cartridge. All positioning is effected through physical contact between the stylus and the apparatus without contact of the fragile stylus point occurring.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: July 1, 1986
    Assignee: RCA Corporation
    Inventor: David W. Fairbanks
  • Patent number: 4593644
    Abstract: A continuous, in-line deposition system is disclosed for coating large substrates. The apparatus includes loadlock chambers for loading and unloading substrates arranged in carriers. The carriers transport through the apparatus a plurality of pairs of substrates with their principal faces, that is faces to be coated, held in a plane that is both parallel to the electric field of the glow discharge reaction and perpendicular to the direction of motion of the substrates through the apparatus.
    Type: Grant
    Filed: October 26, 1983
    Date of Patent: June 10, 1986
    Assignee: RCA Corporation
    Inventor: Joseph J. Hanak
  • Patent number: 4589002
    Abstract: A diode structure is disclosed wherein the diode includes a body of a first type conductivity material; a first region of a second conductivity material in the body and having an opening therein through which a portion of the body projects; and a second region of the first conductivity material in the portion of the body that projects through the opening. The second region is rotationally positioned with respect to the first region so that it partially overlaps the first region at points of intersection of the two regions. These points of intersection are the rectifying junctions. The respective shapes of the opening and of the second region are arranged so that the sum of the areas of the breakdown junctions is a constant value notwithstanding that the second region may be displaced or misaligned with respect to the first region, provided that relative displacement or misalignment of the two regions is within defined limits.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: May 13, 1986
    Assignee: RCA Corporation
    Inventor: John A. Olmstead
  • Patent number: 4586375
    Abstract: A reusable centrifuge fixture is disclosed for holding small parts, such as integrated circuit chips, during high speed rotation. The fixture is made of a moldable material having a depression formed therein conforming to the contours of the part. The fixture is made by pouring the moldable material into an open cavity of a form and the part to be centrifuged, or a replica thereof, is impressed into the surface of the moldable material prior to curing. A permanent magnet is used in conjunction with the fixture to hold the part within the centrifuge machine during set-up of the machine.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: May 6, 1986
    Assignee: RCA Corporation
    Inventor: Armando G. Manfredi
  • Patent number: 4574306
    Abstract: An apparatus and method is shown for measuring the shoe length of a video disc stylus and displaying a digital representation of the measured value in standard units of length for viewing by a human observer. The apparatus utilizes a video slicer for providing a selectively positionable sampling line on the screen of a monitor which displays an image of the part to be measured. The sampling line is positioned directly over the part to be measured and a signal is generated having a pulse amplitude corresponding to the brightness of the image only along the sampling line, and having a pulse width corresponding to the length of the image along the sampling line.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: March 4, 1986
    Assignee: RCA Corporation
    Inventor: John A. van Raalte
  • Patent number: 4571816
    Abstract: A method of manufacturing a semiconductor device is disclosed wherein a matched capacitor having a relatively high capacitance is formed in the structure of a linear MOS device. The method utilizes the standard procedure for manufacturing MOS devices which includes two separate mask steps for forming contact openings to a field effect transistor. During the first mask step, the opening for the upper plate contact of the capacitor is fully etched while the opening for the lower plate contact is only partially etched. During the second mask step, the opening for the lower plate contact of the capacitor is fully etched to the lower plate. In this manner the existing standard procedure may be used without the addition of nonstandard mask and diffusion steps.
    Type: Grant
    Filed: December 11, 1984
    Date of Patent: February 25, 1986
    Assignee: RCA Corporation
    Inventor: Andrew G. F. Dingwall
  • Patent number: 4571617
    Abstract: An apparatus and method is shown for measuring the width of a data pulse of a video signal containing a synchronizing pulse associated with each data pulse. Every N.sup.th data pulse is measured and a digital representation of the measured value is displayed in standard units of length for viewing by a human observer.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: February 18, 1986
    Assignee: RCA Corporation
    Inventor: Jacob P. Hasili
  • Patent number: 4566224
    Abstract: An improved lapping apparatus is disclosed of the type having a disc shaped lapping surface that rotates while a part to be lapped is held in engagement therewith. The improvement includes control apparatus for controlling the speed of rotation of the lap with respect to the radial position of the part on the lapping surface so that the surface speed of the lap relative to the part is held at a constant level as the part traverses the lapping surface.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: January 28, 1986
    Assignee: RCA Corporation
    Inventors: Anton G. Moldovan, Randall E. McCoy
  • Patent number: 4558345
    Abstract: A bond region is provided on an integrated circuit chip wherein the bond region has two or more sets of closely spaced conductors, each of which is electrically connected to a different point of the integrated circuit. During the manufacturing of the device, at the time of assembly of the chip into the package one end of a connector wire may, optionally, be bonded to the bond region thereby effecting a multiple connection of these different points of the integrated circuit. Such a procedure will enable a specific mode of operation of a multi-mode device.
    Type: Grant
    Filed: October 27, 1983
    Date of Patent: December 10, 1985
    Assignee: RCA Corporation
    Inventors: Robert A. Dwyer, James E. Gillberg
  • Patent number: 4557040
    Abstract: An apparatus for accurately aligning an information-containing-disc stylus and assembling the stylus to a stylus holder. The apparatus transfers the stylus from a magazine holding a plurality of such styli into a rotary collet which is then rotated by an operator until a laser beam of light is reflected off a known surface of the stylus and impinges on a fixed target. The apparatus then causes the point of the stylus to pierce the stylus holder to a specific depth whereby the stylus is held firmly by the stylus holder.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: December 10, 1985
    Assignee: RCA Corporation
    Inventor: David W. Fairbanks
  • Patent number: 4553318
    Abstract: A semiconductor device and method for making same having three transistors, NPN, PNP, and junction field effect, concurrently formed integral to a common semiconductor device.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: November 19, 1985
    Assignee: RCA Corporation
    Inventor: Hosekere S. Chandrasekhar
  • Patent number: 4550680
    Abstract: An apparatus is shown for applying a homogeneous uniform layer of a powder to a surface of a part. The apparatus utilizes two belts which are made to track about two pairs of rollers in unison. A hopper containing the powder having an opening in the bottom is disposed so that the opening is closed off by one or both of the belts except for a slit aperture. The aperture is formed by a space between abutting ends of the two belt-roller assemblies. The apparatus is arranged so that as the belts track about the rollers the aperture traverses the opening in the hopper thereby permitting powder to pass through the aperture and fall to the part to be coated which is positioned directly below the opening.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: November 5, 1985
    Assignee: RCA Corporation
    Inventor: Max Derendinger
  • Patent number: 4536238
    Abstract: A chuck is shown for holding a stylus during manufacturing of the stylus. The invention includes a method of aligning the chuck and apparatus therefor. The chuck comprises a body and a stylus holder both of which are held separately in mutual alignment in the alignment apparatus. Epoxy is injected into a cavity of the body and the stylus holder inserted into the cavity while maintaining this mutual alignment. The epoxy, being somewhat displaced by the stylus holder, flows about the outer surface of the stylus holder completely filling the space between the two parts. When the epoxy cures, the finished chuck is removed from the alignment apparatus.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: August 20, 1985
    Assignee: RCA Corporation
    Inventor: William A. Dischert
  • Patent number: 4534105
    Abstract: An improved method of grounding a pellet mounting pad is disclosed wherein the ground wire is bonded to one of the structural support members of the mounting pad rather than to the surface of the pad itself.
    Type: Grant
    Filed: August 10, 1983
    Date of Patent: August 13, 1985
    Assignee: RCA Corporation
    Inventor: Raymond K. Reusch
  • Patent number: 4525375
    Abstract: An improved method and apparatus for the controlled deposition of a layer of hydrogenated amorphous silicon on a substrate. Means is provided for the illumination of the coated surface of the substrate and measurement of the resulting photovoltage at the outermost layer of the coating. Means is further provided for admixing amounts of p type and n type dopants to the reactant gas in response to the measured photovoltage to achieve a desired level and type of doping of the deposited layer.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: June 25, 1985
    Assignee: RCA Corporation
    Inventor: Joseph J. Hanak
  • Patent number: 4509215
    Abstract: A disposable liner for a musical potty chair is disclosed having a light weight receptacle for holding the liner in position and a novel mechanism for effecting operation of a music box upon elimination into the receptacle by a child using the device.
    Type: Grant
    Filed: June 28, 1983
    Date of Patent: April 9, 1985
    Inventor: Lirida Paz
  • Patent number: 4478701
    Abstract: A sputtering apparatus for the deposition of thin films of material upon substrates is disclosed having an improved target mounting mechanism. The improved mounting mechanism provides the capability to easily raise and lower the target with respect to the substrate while maintaining critical alignment of the vacuum seal components. Additionally, capability is provided to easily adjust the angular position of the target with respect to the substrate being coated.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: October 23, 1984
    Assignee: RCA Corporation
    Inventors: Patrick G. Welch, Everett E. Mitchell
  • Patent number: 4472453
    Abstract: A method for the deposition of thin films on semiconductor devices is disclosed which utilizes electron-beam induced evaporation techniques. A shield device is included for preventing high energy particles, resulting from the use of the electron-beam, from reaching the semiconductor devices being coated.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: September 18, 1984
    Assignee: RCA Corporation
    Inventor: Dorothy M. Hoffman
  • Patent number: 4468290
    Abstract: An improved apparatus for attaching a record matrix to be replicated by electroforming to the cathode of an electroforming device is provided. The apparatus includes a positioning pin which maintains the record matrix center hole concentric to the cathode and to the replicated grooves and a lock knob which effectively holds the center portion of the record matrix in liquid-tight electrical contact with the cathode.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: August 28, 1984
    Assignee: RCA Corporation
    Inventor: Charles A. Weaver