Patents Represented by Attorney Birgit E. Morris

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  • Method for the manufacture of a metallic recording substrate for a capacitance electronic disc and the recording substrate obtained thereby
    Patent number: 4402798
    Abstract: In accordance with the present disclosure recorded metallic recording substrates made of a relatively soft metal are coated with a conformal 200 to 400 angstroms thick layer of chromium, chromium oxide, or a mixture thereof, and then preferably passivated prior to being used as matrixes in the replication process.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: September 6, 1983
    Assignee: RCA Corporation
    Inventors: Istvan Gorog, Leonard P. Fox
  • Method of forming closely spaced lines or contacts in semiconductor devices
    Patent number: 4402128
    Abstract: A method for forming closely spaced conductors suitable for use, for example, in CCD's and MESFET's is described utilizing an edge diffusion technique to convert exposed edge portions of a polycrystalline silicon layer to a non-etchable form. The converted portions are precisely and accurately formed to serve as spacers, thereby defining a narrow gap between adjacent conductive lines.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: September 6, 1983
    Assignee: RCA Corporation
    Inventor: Scott C. Blackstone
  • Overglaze inks
    Patent number: 4401709
    Abstract: Improved thick-film overglaze inks useful in constructing multilayer integrated circuits on circuit boards, particularly porcelain-coated metal circuit boards, are provided. The subject inks comprise: a glass consisting of lead oxide, a modifier component consisting of the oxides of cadmium, zinc, barium and antimony and a glass-forming component consisting of aluminum oxide, boron trioxide and silicon dioxide; a suitable organic vehicle and, if desired, a colorant oxide.
    Type: Grant
    Filed: July 9, 1982
    Date of Patent: August 30, 1983
    Assignee: RCA Corporation
    Inventors: Ashok N. Prabhu, Kenneth W. Hang
  • Radiation heated reactor process for chemical vapor deposition on substrates
    Patent number: 4401689
    Abstract: A method of chemically vapor depositing a material on a plurality of stacked substrates comprising heating a tubular susceptor surrounding the stack to thereby heat the substrates by radiant heating.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: August 30, 1983
    Assignee: RCA Corporation
    Inventor: Vladimir S. Ban
  • Epoxy encapsulating formulation
    Patent number: 4401775
    Abstract: Epoxy resin compositions are disclosed which have an exceptional capacity to penetrate tightly wound wire bundles such as tertiary coils in high voltage flyback transformers. The subject compositions are therefore useful for encapsulating such coils.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: August 30, 1983
    Assignee: RCA Corporation
    Inventors: Thomas R. Pampalone, Sidney S. Seffren
  • Method of forming metal lines
    Patent number: 4400257
    Abstract: A method of forming metal lines is described for semiconductor processing wherein a line mask is initially ion milled to provide a mask contour which promotes the onset of chemical etching at the base of the mask. This produces a metal line that has a tapered cross-sectional dimension wherein the base of the line is narrower than the top.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: August 23, 1983
    Assignee: RCA Corporation
    Inventor: Gordon C. Taylor
  • Integrated circuit protection device
    Patent number: 4400711
    Abstract: Disclosed is a protection circuit which may be used, for example, in a television receiver to protect circuitry formed within an integrated circuit from damage due to excessively high voltage transients. The protection circuit comprises a PNPN structure forming a silicon controlled rectifier (SCR) and metal-oxide-semiconductor (MOS) transistor integral to the SCR structure. The SCR and the MOS transistors are arranged to form a two terminal protection circuit which is rendered conductive when the potential difference across the two terminals is greater than a predetermined threshold. One terminal of the protection circuit is connected to an input or output signal terminal of the protected circuit, and the other terminal is connected to a reference terminal to which a reference potential such as ground potential is applied.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: August 23, 1983
    Assignee: RCA Corporation
    Inventor: Leslie R. Avery
  • Matrixing process for the manufacture of molded records
    Patent number: 4400245
    Abstract: A process improvement is disclosed for use in the matrixing process employed in the manufacture of molded records. In accordance with the disclosure, a narrow texturized band is provided in either the outer or inner unrecorded areas of a matrix or in both areas of a matrix, so that when a replica is electroformed on the matrix the texturized bands will provide sufficient additional grip of the replica to the matrix to prevent premature separation.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: August 23, 1983
    Assignee: RCA Corporation
    Inventor: John J. Prusak
  • Preparation of video disc molding composition
    Patent number: 4399061
    Abstract: An improvement in preparing PVC resin based conductive molding compositions suitable for the manufacture of capacitive high density information discs wherein isopropyl alcohol is added to ingredients to be dry blended thus substantially reducing the amount of powder which accumulates on the inner surface of the mixing vessel during blending.
    Type: Grant
    Filed: October 14, 1981
    Date of Patent: August 16, 1983
    Assignee: RCA Corporation
    Inventor: Paulo Sickert
  • Method of mounting electronic components
    Patent number: 4398660
    Abstract: An improved method for mounting leadless electronic components on printed circuit boards so they can be soldered in place is disclosed. The method utilizes an acrylate adhesive composition which is rapidly cured in two stages by treatment with gaseous sulfur dioxide followed by heat.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: August 16, 1983
    Assignee: RCA Corporation
    Inventors: Thomas R. Pampalone, Anthony Z. Miller
  • Transparent conductive film
    Patent number: 4399194
    Abstract: Transparent conductive films of indium oxide and zirconium oxide, methodology for annealing them and an etchant therefor are disclosed.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: August 16, 1983
    Assignee: RCA Corporation
    Inventors: Joseph Zelez, John L. Vossen, Jr.
  • Device for multisample infrared analysis of materials in microgram quantity
    Patent number: 4399361
    Abstract: A sampling device adapted for mounting on a conventional microsampling apparatus for infrared spectroscopy is arranged to sample a plurality of different samples of unknown material during one operation. The device supports by a clamp an IR-transparent substrate on which solutions of samples are deposited. After evaporation of the solvent, the residue of unknown material is analyzed by conventional spectroscopy procedures. Each of the plurality of such samples deposited on the substrate are manually rotated into and out of exposure to the IR beam of the apparatus for rapid analysis.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: August 16, 1983
    Assignee: RCA Corporation
    Inventors: Peter J. Zanzucchi, William R. Frenchu
  • Apparatus for molding a recorded disc
    Patent number: 4397627
    Abstract: A center plate for an apparatus for molding recorded discs is disclosed which includes a cylindrical body having an internal recess and a plug secured across the bottom end of the recess. The plug has a pair of passages therethrough opening into the internal recess. An adapter is secured to the plug. The adapter has a pair of ports and a separate universal connection between each of the ports and a separate one of the passages in the plug. This provides for a flow of a heat control medium through the center plate and permits ease of connecting pipes to the ports to provide the flow of the heat control medium.
    Type: Grant
    Filed: March 18, 1982
    Date of Patent: August 9, 1983
    Assignee: RCA Corporation
    Inventor: James H. Helm
  • Method of using a positive electron beam resist medium
    Patent number: 4397939
    Abstract: This invention relates to novel terpolymers of vinyl acetate, 3-methylcyclopentene and sulfur dioxide. Positive electron beam resist media prepared from the subject terpolymers possesses excellent sensitivity and development latitude.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: August 9, 1983
    Assignee: RCA Corporation
    Inventor: Kurt B. Kilichowski
  • Method of forming resist patterns using X-rays or electron beam
    Patent number: 4397938
    Abstract: In accordance with this invention, there is provided a positive resist medium for microlithography which is comprised of a film of a copolymer of sulfur dioxide and certain vinyl esters. A method of manufacturing microelectronic circuits and recording information utilizing the resist medium of this invention is also provided.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: August 9, 1983
    Assignee: RCA Corporation
    Inventors: Nitin V. Desai, Emil J. Gavalchin
  • Transistor with integrated diode and resistor
    Patent number: 4398206
    Abstract: A semiconductor device including a transistor, diode and resistor comprises a body of semiconductor material formed with conventional emitter, base and collector regions. The collector region forms one electrode of the diode with the other electrode being formed in the region forming the base of the transistor and being separated from the base by an isolation ring. The contact between the emitter and the other electrode are integral, but are insulated from the isolation ring.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: August 9, 1983
    Assignee: RCA Corporation
    Inventor: John M. S. Neilson
  • Method of forming pattern in positive resist media
    Patent number: 4396702
    Abstract: This invention relates to novel poly(silane sulfone) copolymers having repeating units represented by the formula ##STR1## wherein R is alkyl and n is an integer. Positive resist recording media prepared from the subject copolymers demonstrate excellent sensitivity and resolution and are resistant to oxygen plasma etching.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: August 2, 1983
    Assignee: RCA Corporation
    Inventors: Nitin V. Desai, Eugene S. Poliniak
  • Method of making CCD imagers
    Patent number: 4396438
    Abstract: The preferred embodiment of the invention disclosed herein provides a CCD imager with reduced striation contrast in its displayed image. The wafer on which the imager is to be formed is lightly doped with atoms of one conductivity type. Before forming the various regions of the imager in the wafer, a layer is first doped with atoms of the same conductivity type so as to have a substantially uniform lateral concentration. This is preferably accomplished by ion implantation and diffusion techniques. Thereafter, an imager is formed in this layer in accordance with any desired technique.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: August 2, 1983
    Assignee: RCA Corporation
    Inventor: Alvin M. Goodman
  • Selective etching of phosphosilicate glass
    Patent number: 4395304
    Abstract: A selective chemical etchant solution for phosphosilicate glass includes a carboxylic acid, hydrogen fluoride and water. The invention is also a method for preferentially etching the phosphosilicate glass which comprises the step of immersing the glasses in the etchant solution of the invention.
    Type: Grant
    Filed: May 11, 1982
    Date of Patent: July 26, 1983
    Assignee: RCA Corporation
    Inventors: Werner Kern, George L. Schnable
  • Transparent conductive film having areas of high and low resistivity
    Patent number: 4395467
    Abstract: A method of forming areas of high and low resistivity in a transparent film of indium oxide and zirconium oxide is disclosed. The film is selectively ion implanted with protons and then annealed to lower the resistivity in the non-implanted portion.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: July 26, 1983
    Assignee: RCA Corporation
    Inventors: John L. Vossen, Jr., Joseph Zelez