Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5550089 | Gallium oxide coatings for optoelectronic devices using electron beam evaporation of a high purity single crystal Gd3 Ga5 O12 source. An optoelectronic lII-V or II-VI semiconductor device comprises a thin film coating with optical characteristics providing low midgap interface state density. A field effect device for inversion channel applications on III-V semiconductors also comprises ... | 08/27/1996 |
| 5466972 | Metallization for polymer-dielectric multichip modules including a Ti/Pd alloy layer Multilayer circuit devices include a plurality of metallized patterns thereon, said patterns being separated by a polymeric dielectric film. The various metallized patterns are interconnected by means of microvias through the polymeric film or films. Each... | 11/14/1995 |
| 5451548 | Electron beam deposition of gallium oxide thin films using a single high purity crystal source Disclosed is a method of fabricating a stoichiometric gallium oxide (Ga2 O3) thin film with dielectric properties on at least a portion of a semiconducting, insulating or metallic substrate. The method comprises electron-beam evapora... | 09/19/1995 |
| 5449955 | Film circuit metal system for use with bumped IC packages A multilayer composite interconnection for use in circuits including thin film elements and electrical interconnections includes a copper barrier layer interposed between a nickel layer and a gold layer of the interconnection. The copper layer is in a thi... | 09/12/1995 |
| 5428318 | Voltage controlled ring oscillator producing a sum output A voltage controlled ring oscillator whose frequency does not depend on the number of stages in the ring oscillator. The inventive voltage controlled ring oscillator comprises N inverters connected in series with the output of the Nth inverter being coupl... | 06/27/1995 |
| 5418463 | Detection of arcs in power cables using plasma noise or negtive resistance of the arcs A process for detecting arc discharges in power cables connecting power supply board and at least one equipment rack, the power supply board including circuit breakers operable at a preset current level, said arc discharge occurring at a fraction of said ... | 05/23/1995 |
| 5406194 | Alx Ga1-x as probe for use in electro-optic sampling A new electro-optic sampling probe with femtosecond resolution suitable for ultra-fast electro-optic sampling. The new probe is several times thinner and has a dielectric constant four times less than the best reported conventional bulk LiTaO3 ... | 04/11/1995 |
| 5391994 | Method for measuring surface resistivity using square electrodes and multiplying surface resistance measurements by a correction factor This invention embodies a method and apparatus for determination of surface resistivity (.rho.) of materials to be used for a desired purpose. The surface resistivity is obtained by measuring surface resistance (R) of at least one square area of the mater... | 02/21/1995 |
| 5382300 | Solder paste mixture A solder paste is composed of a vehicle (or flux) system and a mixture of at least two solder powders. One component of this mixture is a eutectic or near-eutectic Sn/Pb alloy powder, while the other component comprises powders selected from at least one ... | 01/17/1995 |
| 5380559 | Electroless metallization of optical fiber for hermetic packaging An electroless process has been developed to deposit nickel and gold onto optical fibers using aqueous chemistry. The key to the process is a sensitization of a surface of an optical fiber using a dilute aqueous stannous fluoride solution in absence of ox... | 01/10/1995 |
| 5380400 | Chemical etchant for palladium A cyanide based aqueous solution for stripping palladium from copper-containing substrate. The solution includes a cyanide radical source compound, Na2 CO3, a nitrobenzoic acid, NaOH, thallium compound, an organo mercapto compound, a... | 01/10/1995 |
| 5372622 | Large aperture device for controlling thickness of conductive coatings on optical fibers Described is a new method and apparatus for measuring the thickness of a thin conductive coating deposited on a moving elongated dielectric body. Of special use is an application of a carbon coating on an optical fiber. The thickness of the conductive coa... | 12/13/1994 |
| 5365656 | Surface mount assembly of devices using AdCon interconnections A process of batch assembly of sundry leaded or padded devices, encapsulated and non-encapsulated, onto a printed wiring board (PWB), which exhibit significant improvements in both manufacturability and reliability. A pressure frame assembly apparatus per... | 11/22/1994 |
| 5362977 | Single mirror light-emitting diodes with enhanced intensity This invention embodies single mirror light-emitting diodes (LEDs) with enhanced intensity. The LEDs are Group III-V and/or II-IV compound semiconductor structures with a single metallic mirror. The enhanced intensity is obtained by placing an active regi... | 11/08/1994 |
| 5363398 | Absorption resonant rare earth-doped micro-cavities Absorption properties of an optically active medium can be changed drastically by a Fabry-Perot microcavity. Optically active medium of the cavity includes a host material which is not optically active and at least one rare earth ion which provides optica... | 11/08/1994 |
| 5360991 | Integrated circuit devices with solderable lead frame A packaged device with a lead frame, a lead frame and an article of manufacture comprising a base metal, a layer of nickel on the base metal, and a protective composite of metal layers on the nickel. The composite includes, in succession from the nickel l... | 11/01/1994 |
| 5356526 | Copper-based metallizations for hybrid integrated circuits A new metallization is described which is a composite of subsequent metal layers beginning with a layer of titanium and having in an ascending order the following composition: Ti--TiPd--Cu--Ni--Au. TiPd is an alloy of titanium and palladium containing fro... | 10/18/1994 |
| 5346118 | Surface mount solder assembly of leadless integrated circuit packages to substrates Described are a process for soldering at least one component having solder bumps to a substrate and a process for forming solder bumps on metal pads of an element, such as an IC package or substrate or both. The bumps are formed by stencil printing solder... | 09/13/1994 |
| 5328854 | Fabrication of electronic devices with an internal window A process is described of producing devices, such as vertical cavity surface emitting lasers or resonant cavity light emitting devices, with an insulating region between an active region and top electrode, the insulating region having a centrally located ... | 07/12/1994 |
| 5329605 | Undersea armored cable A waterproofed, insulated conductor or cable and a method of fabricating the same using a new slushing compound is described. The waterproofed insulated conductor or cable includes a core with at least one conductor element, a polymeric insulation jacket,... | 07/12/1994 |
| 5326626 | Stable polar optically nonlinear multilayer films and devices using the same This invention embodies an optical medium which consists of polar, multi-monomolecular layers of organic dye molecules with a net polar orientation, considerable second order optical nonlinearity, and excellent thermal stability. The medium is prepared by... | 07/05/1994 |
| 5315128 | Photodetector with a resonant cavity Described is a resonant-cavity p-i-n photodetector based on the reflection or transmission through a Fabry-Perot cavity incorporating non-epitaxial, amorphous layers with alternating refractive index difference which layers are electron-beam deposited on ... | 05/24/1994 |
| 5288951 | Copper-based metallizations for hybrid integrated circuits A new metanization is described which is a composite of subsequent metal layers beginning with a layer of titanium and having in an ascending order the following composition: Ti - TiPd - Cu - Ni - Au. TiPd is an alloy of titanium and palladium containing ... | 02/22/1994 |
| 5279740 | Ground contamination remediation process Disclosed is a process for improved removal of contaminants including oily wastes and other organic hydrocarbonaceous materials from ground waters and areas adjacent to or in the vicinity of ground water locations. Ground and ground water contamination du... | 01/18/1994 |
| 5275711 | Rotating cylinder-throwing power electrode This invention pertains to an apparatus and method for measuring throwing power of electroplating solutions. The apparatus is easy to use and gives reproducible measurements. The apparatus emulates the performance of a conventional Haring Blum cell. The m... | 01/04/1994 |
| 5268087 | Electroplating test cell Hull cell has been widely used in the plating industry for many years to evaluate the plating chemistry as a function of current densities. However, because of irreproducible mass transfer, Hull cells can only be used qualitatively for process control. A ... | 12/07/1993 |
| 5268582 | P-N junction devices with group IV element-doped group III-V compound semiconductors This invention embodies p-n junction devices comprising Group III-V compound semiconductors in which the p or n or both p and n regions are formed by a superlattice selectively doped with an amphoteric Group IV element dopant selected from carbon, germani... | 12/07/1993 |
| 5266352 | Devices featuring silicone elastomers Devices are described in which certain crosslinked silicone polymers are incorporated. These polymers have various functions such as encapsulating agents, surface protective agents or agents to index match optical components (e.g. optical fiber, optical w... | 11/30/1993 |
| 5265177 | Integrated optical package for coupling optical fibers to devices with asymmetric light beams This invention embodies an integrated optical package including an optical component having an asymmetric modal output, and a lens integrated with the component for coupling to another optical component having a large modal area. The coupling is achieved ... | 11/23/1993 |
| 5256851 | Microlenses for coupling optical fibers to elliptical light beams An asymmetric hyperbolic microlens on the end of a single-mode optical fiber enhances the fiber's coupling to elliptical laser beams. The lenses, with controlled eccentricity ratios, are made by micromachining the end of the fiber with a pulsed CO2 | 10/26/1993 |
| 5249195 | Erbium doped optical devices This invention embodies an optical device with a Fabry-Perot cavity formed by two reflective mirrors and an active layer which is doped with a rare earth element selected from lanthanide series elements with number 57 through 71. The thickness of the acti... | 09/28/1993 |
| 5233200 | Method and apparatus for contactless monitoring of tension in a moving fiber This invention is a process of contactless monitoring the tension in a moving fiber, such as during the process of drawing optical fibers from preforms, and a non-contacting tension gauge which allows measurement of fiber tension at line speed. The device... | 08/03/1993 |
| 5228976 | Hydrodynamically modulated hull cell The invention provides, in electroplating quality control methods for manufacturing, better similarity and relevance between a Hull Cell quality control test and a particular plating operation. The invention is a simple and yet functional instrument which... | 07/20/1993 |
| 5226053 | Light emitting diode This invention embodies a LED in which an optical cavity of the LED, which includes an active layer (or region) and confining layers, is within a resonant Fabry-Perot cavity. The LED with the resonant cavity, hereinafter called Resonant Cavity LED or RCLE... | 07/06/1993 |
| 5217792 | Stable polar optically nonlinear multilayer films and devices using the same This invention embodies an optical medium which consists of polar, multi-monomolecular layers of organic dye molecules with a net polar orientation, considerable second order optical nonlinearity, and excellent thermal stability. The medium is prepared by... | 06/08/1993 |
| 5217811 | Devices featuring silicone elastomers Devices are described in which certain crosslinked silicone polymers are incorporated. These polymers have various functions such as encapsulating agents, surface protective agents or agents to index match optical components (e.g. optical fiber, optical w... | 06/08/1993 |
| 5216727 | Integrated nonlinear waveguide spectrometer This invention pertains to integration of nonlinear parametric waveguide spectrometer with polyimide waveguide focusing mirror. The waveguide spectrometer uses nonlinear counter-propagating .chi.2 interaction to simulate the action of a grating... | 06/01/1993 |
| 5212395 | P-I-N photodiodes with transparent conductive contacts This invention pertains to a p-i-n In0.53 Ga0.47 As photodiode having an optically transparent composite top electrode consisting of a thin semitransparent metal layer from 10 to 40 nm thick and a transparent cadmium tin oxide (CTO) ... | 05/18/1993 |
| 5208821 | Buried heterostructure lasers using MOCVD growth over patterned substrates This invention pertains to buried heterostructure lasers which have been fabricated using a single step MOCVD growth of an MQW laser structure over a pattern etched GaAs substrate. The wet chemical etching of grooves having a dovetailed cross-section and ... | 05/04/1993 |
| 5206871 | Optical devices with electron-beam evaporated multilayer mirror This invention embodies a Vertical Cavity Surface Emitting Laser with a top mirror comprising at least one pair of quarterwave layers, each pair consisting of a low index of refraction layer and a high index of refraction layer, the high index of refracti... | 04/27/1993 |
