Patents Represented by Attorney Henry Powers
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Patent number: 4091169Abstract: A semiconductor dielectric layer formed of silicon nitride having a uniform dispersion of carbon therein for providing reduced intrinsic tensile stresses of less than 10 .times. 10.sup.9 dyn/cm.sup.2.Type: GrantFiled: September 7, 1976Date of Patent: May 23, 1978Assignee: International Business Machines CorporationInventors: Armin Bohg, Eckehard Ebert, Erich Mirbach
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Patent number: 4089992Abstract: A substrate article coated with a pinhole free film of silicon nitride produced by reacting silane with a nitrogen containing compound which upon decomposition produces nascent nitrogen and sufficient amounts of a carrier gas that is inert to the reactants and heating said substrate to a temperature above about 500.degree. C to cause the deposition of silicon nitride film on said substrate.Type: GrantFiled: August 30, 1976Date of Patent: May 16, 1978Assignee: International Business Machines CorporationInventors: Ven Y. Doo, Donald R. Nichols, Gene A. Silvey
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Patent number: 4087832Abstract: A semiconductor integrated charge coupled device is disclosed having an optimized minimum bit length for two-phase operation. Minimum spacing between created depletion regions and electrodes is obtained by having different ion implanted doping levels in the structure in correlation to overlying phase electrodes.Also disclosed is means for segmenting a charge coupled device channel with provision for sensing of data in each channel segment to increase the speed of transfer of information from the device.Also disclosed is a novel correlation of transfer or control electrodes of a CCD device with a source of phase clock pulses to provide directionality in a single CCD channel.Type: GrantFiled: July 2, 1976Date of Patent: May 2, 1978Assignee: International Business Machines CorporationInventor: Chakrapani G. Jambotkar
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Patent number: 4080414Abstract: Production of a sintered ceramic dielectric formed from a green sheet having a uniform microporous structure providing uniform dielectric properties and compressibility for lamination of stacked green sheets into a unitary laminate which may be provided with an internal pattern of electrical conductors extending therein. The structure is obtained by blending the ceramic particulate in a solution of a binder resin miscible in a solvent mixture which is formed from a volatile solvent for the binder resin and a less volatile solvent in which the resin is at most only slightly soluble.Type: GrantFiled: June 23, 1975Date of Patent: March 21, 1978Assignee: International Business Machines CorporationInventors: Leslie C. Anderson, Robert W. Nufer, Frank G. Pugliese
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Patent number: 4070116Abstract: Disclosed is an apparatus for measuring the distance between two or more surfaces by means of a periodically shiftable imaging system and focus detectors.Type: GrantFiled: June 11, 1976Date of Patent: January 24, 1978Assignee: International Business Machines CorporationInventors: Albert Frosch, Walter Mannsdorfer, Claus Scheuing
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Patent number: 4065212Abstract: This patent discloses an improved inspection tool for rapidly inspecting miniature electronic conductor patterns, circuits and the like. The tool focuses a laser beam to a small laser spot that raster scans a large conductor pattern area on the workpiece being inspected. Reflected laser light from the workpiece impinges upon a light detector that generates electrical signals according to the presence or absence of conductor pattern material on the workpiece at the momentary X and Y coordinate of the scanning laser spot. The light detector signals are compared with a previously encoded data image of the correct circuit pattern for the X and Y coordinates of the scanning laser spot. When the signals and the data agree at all X and Y coordinate points the workpiece is accepted. If the signals and the data do not agree at one or more X and Y coordinate points a defect in the circuit pattern is indicated. A defect may indicate out-of-tolerance dimensions, possible electrical short circuits, and/or open circuits.Type: GrantFiled: June 30, 1975Date of Patent: December 27, 1977Assignee: International Business Machines CorporationInventors: James Garman Belleson, Kendall Clark
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Patent number: 4063172Abstract: A multiple site probe for simultaneous probing of multiple chip site clusters of pads. The multiple site probe assembly includes a mounting plate having a plurality of groups of adjustably mounted probes thereon. A plurality of cams cooperate with cam followers associated with individual groups of probes, each of the cam and cam followers having a displacement which is dependent upon its distance from a predetermined and fixed reference relative to the mounting plate. An actuator is connected to the cams so as to effect simultaneous actuation of the cams and to allow for differential displacement of each group of the groups of probes so as to compensate for accumulated tolerances and/or shrinkage of the substrate.Type: GrantFiled: June 1, 1976Date of Patent: December 13, 1977Assignee: International Business Machines CorporationInventors: Louis Henry Faure, Howard Thomas Johnston, Jr., Dana Roberts Townsend
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Patent number: 4057939Abstract: The polishing of monocrystalline silicon wafers with an aqueous composition of fine sized abrasive particles, a soluble alkali metal base such a sodium carbonate and an oxidizing agent such as sodium or potassium salt of dichloroisocyanuric acid (e.g., salts of halo-trizenetrione).Type: GrantFiled: December 5, 1975Date of Patent: November 15, 1977Assignee: International Business Machines CorporationInventor: Jagtar S. Basi
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Patent number: 4058223Abstract: A pin is integral with a diaphragm and extends from one side of the diaphragm. The other side of the diaphragm is subjected to a pressure or vacuum to create a pressure differential across the diaphragm to move the pin into or out of engagement with an article within a controlled environment. The diaphragm isolates a fluid, which produces the pressure differential across the diaphragm, from the controlled environment. In one embodiment, the pin is formed at the center of the diaphragm and moves only in a straight line. In another embodiment, the pin is formed eccentric to the center of the diaphragm so as to have a combination movement of angular and straight. The pin can be employed to stop an article such as a semiconductor wafer, for example, or to raise or to lower the wafer without the actuating fluid contaminating the controlled environment in which the semiconductor wafer is disposed.Type: GrantFiled: June 19, 1975Date of Patent: November 15, 1977Assignee: International Business Machines CorporationInventor: Bernd Cruse
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Patent number: 4050954Abstract: The invention comprehends establishing a hydrophilic surface on polished semiconductor wafers, such as silicon, after polishing (e.g. silica polishing) by oxidation and hydrolysis of the wafer surface for conditioning thereof for post-polishing cleaning.Type: GrantFiled: March 25, 1976Date of Patent: September 27, 1977Assignee: International Business Machines CorporationInventor: Jagtar S. Basi
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Patent number: 4040745Abstract: This patent discloses an improved inspection tool for rapidly inspecting miniature electronic conductor patterns, circuits and the like. The tool focuses a laser beam to a small laser spot that raster scans a large conductor pattern area on the workpiece being inspected. Reflected laser light from the workpiece impinges upon a light detector that generates electrical signals according to the presence or absence of conductor pattern materialon the workpiece at the momentary X and Y coordinate of the scanning laser spot. The light detector signals are compared with a previously encoded data image of the correct circuit pattern for the X and Y coordinates of the scanning laser spot. When the signals and the data agree at all X and Y coordinate points the workpiece is accepted. If the signals and the data do not agree at one or more X and Y coordinate points a defect in the circuit pattern is indicated. A defect may indicate out-of-tolerance dimensions, possible electrical short circuits, and/or open circuits.Type: GrantFiled: March 25, 1976Date of Patent: August 9, 1977Assignee: International Business Machines CorporationInventors: James Garman Belleson, Kendall Clark
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Patent number: 4040748Abstract: This patent discloses an improved inspection tool for rapidly inspecting miniature electronic conductor patterns, circuits and the like. The tool focuses a laser beam to a small laser spot that raster scans a large conductor pattern area on the workpiece being inspected. Reflected laser light from the workpiece impinges upon a light detector that generates electrical signals according to the presence or absence of conductor pattern material on the workpiece at the momentary X and Y coordinate of the scanning laser spot. The light detector signals are compared with a previously encoded data image of the correct circuit pattern for the X and Y coordinates of the scanning laser spot. When the signals and the data agree at all X and Y coordinate points the workpiece is accepted. If the signals and the data do not agree at one or more X and Y coordinate points a defect in the circuit pattern is indicated. A defect may indicate out-of-tolerance dimensions, possible electrical short circuits, and/or open circuits.Type: GrantFiled: March 25, 1976Date of Patent: August 9, 1977Assignee: International Business Machines CorporationInventors: James Garman Belleson, Kendall Clark
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Patent number: 4039371Abstract: A composition for etching polyimide based polymers comprised of a tetraalkyl ammonium hydroxide and an organic acid selected from the group of acetic acid, tartaric acid and oxalic acid.The etchant may be used to texture polyimide films or form perforations through polyimide substrates or layers, particularly in the fabrication of printed circuits and semiconductor devices where via holes are required for interconnection of circuitry.Type: GrantFiled: August 30, 1976Date of Patent: August 2, 1977Assignee: International Business Machines CorporationInventors: Friedrich Brunner, Peter Frasch, Friedrich Schwerdt
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Patent number: 4039338Abstract: A green ceramic sheet material adaptable for accelerated sintering comprising a high alumina ceramic green sheet having an average particle size greater than one micron with a close particle size distribution and being formed into a solid integrated circuit interconnection substrate by heating the ceramic green sheet directly to its sintering temperature, absent the binder burn-off step.Type: GrantFiled: December 29, 1972Date of Patent: August 2, 1977Assignee: International Business Machines CorporationInventors: William R. Swiss, Wayne S. Young
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Patent number: 4037941Abstract: This patent discloses an improved inspection tool for rapidly inspecting miniature electronic conductor patterns, circuits and the like. The tool focuses a laser beam to a small laser spot that raster scans a large conductor pattern area on the workpiece being inspected. Reflected laser light from the workpiece impinges upon a light detector that generates electrical signals according to the presence or absence of conductor pattern material on the workpiece at the momentary X and Y coordinate of the scanning laser spot. The light detector signals are compared with a previously encoded data image of the correct circuit pattern for the X and Y coordinates of the scanning laser spot. When the signals and the data agree at all X and Y coordinate points the workpiece is accepted. If the signals and the data do not agree at one or more X and Y coordinate points a defect in the circuit pattern is indicated. A defect may indicate out-of-tolerance dimensions, possible electrical short circuits, and/or open circuits.Type: GrantFiled: March 25, 1976Date of Patent: July 26, 1977Assignee: International Business Machines CorporationInventors: James Garman Belleson, Kendall Clark
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Patent number: 4037912Abstract: Disclosed is a terminal assembly comprising a housing composed of an insulating material and having spaced apart wall members projecting from a base plate and defining a chamber. A conductive strip having projecting terminals thereon is snapped into the chamber and is rigidly held therein by protrusions extending from the wall members.Type: GrantFiled: May 21, 1976Date of Patent: July 26, 1977Assignee: International Business Machines CorporationInventors: Helmut Siegfried Besser, Gunter Kieven, Jurgen Wettlauffer
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Patent number: 4037971Abstract: This patent discloses an improved inspection tool for rapidly inspecting miniature electronic conductor patterns, circuits and the like. The tool focuses a laser beam to a small laser spot that raster scans a large conductor pattern area on the workpiece being inspected. Reflected laser light from the workpiece impinges upon a light detector that generates electrical signals according to the presence or absence of conductor pattern material on the workpiece at the momentary X and Y coordinate of the scanning laser spot. The light detector signals are compared with a previously encoded data image of the correct circuit pattern for the X and Y coordinates of the scanning laser spot. When the signals and the data agree at all X and Y coordinate points the workpiece is accepted. If the signals and the data do not agree at one or more X and Y coordinate points a defect in the circuit pattern is indicated. A defect may indicate out-of-tolerance dimensions, possible electrical short circuits, and/or open circuits.Type: GrantFiled: March 25, 1976Date of Patent: July 26, 1977Assignee: International Business Machines CorporationInventors: James Garman Belleson, Kendall Clark
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Patent number: 4014576Abstract: A portable carrier for a semiconductor wafer is detachably connected to an air slide so that the wafer can be propelled from the carrier to the air slide and vice versa by air from the air slide. The carrier has a chamber with an air slide base on which the wafer is supported by air from the air slide when the wafer is to be propelled into or out of the chamber. The carrier has a single wafer port, which is sealed except when the carrier is connected to the air slide, through which the wafer enters or exits when propelled by air from the air slide. When the carrier chamber is sealed, the wafer is retained in position within the chamber by retaining means, which are rendered ineffective when the wafer is to be propelled into or out of the chamber.Type: GrantFiled: June 19, 1975Date of Patent: March 29, 1977Assignee: International Business Machines CorporationInventors: William O. Druschel, Bayard G. Gardineer, Jr., Stanley A. Manning, Bela Musits
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Patent number: 4000030Abstract: Growth of shaped crystals, such as silicon, germanium, garnet, sapphire and the like, using a crucible to contain a melt in conjunction with a wettable submerged projection extending above the level of the melt over which is formed a convex or raised meniscus of the melt by surface tension. A seed crystal is brought in contact with the meniscus and then drawn upwardly so that the melt of the meniscus crystallizes out and grows to the crystal lattice of the seed as a continuation thereof.Type: GrantFiled: June 9, 1975Date of Patent: December 28, 1976Assignee: International Business Machines CorporationInventor: Theodore F. Ciszek
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Patent number: 3995206Abstract: A material transfer apparatus which includes a carriage whose movement is controlled along a path between specified locations thereon. The carriage includes means for dynamically indicating its present location on the path which is compared with a specified new location to provide a difference drive for moving the carriage as required.Type: GrantFiled: June 6, 1974Date of Patent: November 30, 1976Assignee: International Business Machines CorporationInventors: Jesse Aronstein, Arkady Leoff, John J. Murphy, Winfield S. Ruder