Patents by Inventor Lee M. Cook
Lee M. Cook has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20040084399Abstract: Provided for herein is a method of planarizing a printed circuit board substrate including contacting at least a portion of a printed circuit board substrate with a planarizing liquid, a planarizing surface, and an abrasive component that produces a surface texture on the planarized surface, the texture having a roughness less than the smallest wiring feature on the substrate, wherein the planarizing liquid includes a liquid carrier, and optionally components to remove material from the circuit board substrate and wherein the contacting comprises a plurality of contacting motions on the printed circuit board substrate.Type: ApplicationFiled: May 28, 2003Publication date: May 6, 2004Applicant: Shipley Company, L.L.C.Inventors: Lee M. Cook, Mark LeFebvre, Martin W. Bayes
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Patent number: 5489233Abstract: An improved polishing pad is provided comprising a solid uniform polymer sheet having no intrinsic ability to absorb or transport slurry particles having during use a surface texture or pattern which has both large and small flow channels present simultaneously which permit the transport of slurry across the surface of the polishing pad, where said channels are not part of the material structure but are mechanically produced upon the pad surface. In a preferred version of the invention, the pad texture consists of a macrotexture produced prior to use and a microtexture which is produced by abrasion by a multiplicity of small abrasive points at a regular selected interval during the use of the pad.Type: GrantFiled: April 8, 1994Date of Patent: February 6, 1996Assignee: Rodel, Inc.Inventors: Lee M. Cook, John V. H. Roberts, Charles W. Jenkins, Raj R. Pillai
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Patent number: 5480476Abstract: Disclosed is a process for preparing activated compositions and the compositions derived therefrom which are suitable for polishing surfaces, particularly integrated circuits, wherein a base abrasive is activated by addition of a second cation whose oxide exhibits a higher polishing rate than the base abrasive alone. The activation is effected by chemical adsorption of the activating cation onto the base abrasive during cyclic impact in an aqueous medium whose pH is at a level which is favorable for adsorption of the activating cation onto the base abrasive surface.Type: GrantFiled: September 6, 1994Date of Patent: January 2, 1996Assignee: Rodel, Inc.Inventors: Lee M. Cook, Scott B. Loncki, Gregory Brancaleoni
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Patent number: 5476606Abstract: Improved compositions for polishing silicon, silica or silicon-containing articles is provided which consists of an aqueous medium, abrasive particles and an anion which controls the rate of removal of silica. The anion is derived from a class of compounds which contain at least two acid groups and where the pKa of the first dissociable acid is not substantially larger than the pH of the polishing composition. Methods using the composition to polish or planarize the surfaces of work pieces, as well as products produced by such methods, are also provided.Type: GrantFiled: June 27, 1994Date of Patent: December 19, 1995Assignee: Rodel, Inc.Inventors: Gregory Brancaleoni, Lee M. Cook
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Patent number: 5391258Abstract: Improved compositions for polishing silicon, silica or silicon-containing articles is provided which consists of an aqueous medium, abrasive particles and an anion which controls the rate of removal of silica. The anion is derived from a class of compounds which contain at least two acid groups and where the pKa of the first dissociable acid is not substantially larger than the pH of the polishing composition. Methods using the composition to polish or planarize the surfaces of work pieces, as well as products produced by such methods, are also provided.Type: GrantFiled: May 26, 1993Date of Patent: February 21, 1995Assignee: Rodel, Inc.Inventors: Gregory Brancaleoni, Lee M. Cook
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Patent number: 5382272Abstract: Disclosed is a process for preparing activated compositions and the compositions derived therefrom which are suitable for polishing surfaces, particularly integrated circuits, wherein a base abrasive is activated by addition of a second cation whose oxide exhibits a higher polishing rate than the base abrasive alone. The activation is effected by chemical adsorption of the activating cation onto the base abrasive during cyclic impact in an aqueous medium whose pH is at a level which is favorable for adsorption of the activating cation onto the base abrasive surface.Type: GrantFiled: September 3, 1993Date of Patent: January 17, 1995Assignee: Rodel, Inc.Inventors: Lee M. Cook, Scott B. Loncki, Gregory Brancaleoni
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Patent number: 5351332Abstract: Optical waveguide array imaging devices have a darkened surface layer in the cladding portion. The imaging devices of the invention have high contrast which is generally independent of pathlength. A method for contrast enhancement in such arrays is disclosed.Type: GrantFiled: February 17, 1993Date of Patent: September 27, 1994Assignee: Galileo Electro-Optics CorporationInventor: Lee M. Cook
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Patent number: 5259057Abstract: An FOFP has a darkened surface layer in the cladding portion to reduce cross-talk. One embodiment has an intagliated surface with darkened cavity walls. Darkening is achieved on a finished piece without further reworking. The surface is substantially free of fluorescence and is substantially non-conductive.Type: GrantFiled: March 18, 1992Date of Patent: November 2, 1993Assignee: Galileo Electro-Optics CorporationInventor: Lee M. Cook
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Patent number: 5223013Abstract: Fiber composites, particularly for imaging, easy to manufacture even with great cross-sectional area, in which fibers are in a peak-to-valley relation with abutting pairs of fibers throughout.Type: GrantFiled: April 8, 1991Date of Patent: June 29, 1993Assignee: Galileo Electro-Optics Corp.Inventors: Lee M. Cook, Danna A. Mancini, Susan M. Patterson
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Patent number: 5136677Abstract: The photorefractive effect results in a change in the refractive index of bulk chalcogenide glass when it is exposed to certain wavelengths of light, in particular, sub-band-gap light. The effect results in a variety of device structures including a fiber optic faceplate; an optical waveguide; a fiber tap; a lens and a Bragg grating. Methods for fabricating the various devices are described.Type: GrantFiled: June 6, 1991Date of Patent: August 4, 1992Assignee: Galileo Electro-Optics CorporationInventors: Martin G. Drexhage, Lee M. Cook, Tracey L. Margraf, Cornelius T. Moynihan
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Patent number: 5049176Abstract: Fiber composites, particularly for imaging, easy to manufacture even with great cross-sectional area, in which fibers are in a peak-to-valley relation with abutting pairs of fibers throughout.Type: GrantFiled: July 9, 1990Date of Patent: September 17, 1991Assignee: Galileo Electro-Optics Corp.Inventors: Lee M. Cook, Danna A. Mancini, Susan M. Patternson
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Patent number: 5028105Abstract: The photorefractive effect results in a change in the refractive index of bulk chalcogenide glass when it is exposed to certain wavelengths of light, in particular, sub-band-gap light. The effect results in a variety of device structures including a fiber optic faceplate; an optical waveguide; a fiber tap; a lens and a Bragg grating. Methods for fabricating the various devices are described.Type: GrantFiled: December 21, 1989Date of Patent: July 2, 1991Assignee: Galileo Electro-Optics CorporationInventors: Martin G. Drexhage, Lee M. Cook, Tracey L. Margraf, Cornelius T. Moynihan
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Patent number: 4983551Abstract: Glass consisting essentially of, in weight percent:______________________________________ SiO.sub.2 30-35% PbO 50-57% Cs.sub.2 O 2-10% .SIGMA.MgO + CaO + SrO + BaO 0-5% .SIGMA.Al.sub.2 O.sub.3 + ZrO.sub.2 + TiO.sub.2 + Nb.sub.2 O.sub.5 0.1-1%, ______________________________________wherein the ratio of Si or Pb, expressed as the molar ratio of SiO.sub.2 to PbO, is 2.0-2.4, and channel electron multipliers made therefrom.Type: GrantFiled: August 18, 1988Date of Patent: January 8, 1991Assignee: Galileo Electro-Optics Corp.Inventors: W. Bruce Feller, Lee M. Cook
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Patent number: 4921316Abstract: An intgeral printhead includes a single fiber optic faceplate substrate to which are connected light emitting diode arrays, driver circuits for selectively controlling the energization of the light emitting diodes and interconnecting conductive lines all disposed on the same fiber optic faceplate substrate which thereby provides the optical lens system for the light emitting diodes and a supporting substrate to which the active components are mounted and electrically interconnected by the conductive lines.Type: GrantFiled: March 6, 1989Date of Patent: May 1, 1990Assignees: Polaroid Corporation, Galileo Electro-Optics CorporationInventors: Stephen D. Fantone, Bennett H. Rockney, Robert J. Burger, Lee M. Cook
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Patent number: 4769347Abstract: A colored glass suitable for enhancing contrast of color CRT displays consists essentially of, in weight %:______________________________________ SiO.sub.2 40-60% B.sub.2 O.sub.3 0-6% Al.sub.2 O.sub.3 0-2% Sum Li.sub.2 O + Na.sub.2 O + K.sub.2 O 24-30% Sum MgO + CaO + SrO + BaO + ZnO 0-10% TiO.sub.2 1-3% CeO.sub.2 1-3% Nd.sub.2 O.sub.3 10-25% Er.sub.2 O.sub.3 1-5% Sm.sub.2 O.sub.3 0-3% Sum Er.sub.2 O.sub.3 + Sm.sub.2 O.sub.3 1-8% CuO 0.1-0.5% MnO.sub.2 0.1-1.0%.Type: GrantFiled: January 6, 1986Date of Patent: September 6, 1988Assignee: Schott Glass Technologies, Inc.Inventors: Lee M. Cook, Alexander J. Marker, III
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Patent number: 4661284Abstract: Neodymium-doped phosphate glasses having a refractive index, nd>1.520; an Abbe number, Vd, <60; a density <3.0 g/cm.sup.3, a thermal expansion coefficient, .alpha., .ltoreq.110.times.10.sup.-7 .degree.C..sup.-1 ; a Young's Modulus, E, <70.times.10.sup.3 N/mm.sup.2 ; a Poisson's Ratio, .nu., <0.28; a thermal conductivity, K, >0.5 W/m.multidot.K, a thermal FOM=(1-.nu.).multidot.K/.alpha.E>0.7, consisting essentially of, in mol. %:P.sub.2 O.sub.5 : 40-70%SiO.sub.2 : 0-20%B.sub.2 O.sub.3 : 5-20%Sum SiO.sub.2 +B.sub.2 O.sub.3 : 5-35%Sum Li.sub.2 O+Na.sub.2 O+K.sub.2 O: 5-20%Sum La.sub.2 O.sub.3 +Nd.sub.2 O.sub.3 : 3-10%Sum MgO+CaO+SrO+BaO+ZnO: 0-10%and preferably containing an amount of Nd.sub.2 O.sub.3 effective for laser activity having an emission cross-section, .sigma., >3.5.times.10.sup.-20 cm.sup.2 ; a fluorescence linewidth (.DELTA..lambda..sub.f1)<23.5 nm; a first e-folding time of the Nd.sup.3+ fluorescence at 0.5 wt. % Nd.sub.2 O.sub.3 >375 .mu.Type: GrantFiled: September 25, 1985Date of Patent: April 28, 1987Assignee: The United States of America as represented by the United States Department of EnergyInventors: Lee M. Cook, Stanley E. Stokowski
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Patent number: 4507393Abstract: An ophthalmic glass particularly useful as a segment glass consists essentially of, in weight percent:______________________________________ SiO.sub.2 23-32 B.sub.2 O.sub.3 4-7 Al.sub.2 O.sub.3 0.5-3 BaO 23-30 PbO 15-30 TiO.sub.2 0.5-10 La.sub.2 O.sub.3 5-20 Nb.sub.2 O.sub.5 0-1.Type: GrantFiled: August 11, 1983Date of Patent: March 26, 1985Assignee: Schott Glass Technologies, Inc.Inventors: Reinhard Kassner, Karl-Heinz Mader, Lee M. Cook
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Patent number: 4434191Abstract: Glass surfaces are modified using controlled chemical corrosion to reduce reflection for a variety of existing optical and ophthalmic silicate glass compositions containing at least 5 weight % of alkali metal, using neutral or slightly alkaline aqueous solutions (pH: 7.0-8.5) at temperatures of 20.degree.-100.degree. C. The solutions contain an electrolyte having a dissociation constant greater than 10.sup.-6 and contain a polyvalent metal ion. Selection of the proper range of the ratio of glass surface area treated to treating solution volume is critical for achieving satisfactory results for optical applications as well as for making the process simple, repeatable, and inexpensive.Using this invention, antireflective surfaces may be produced on optical devices of complex configuration with high uniformity.Type: GrantFiled: October 6, 1981Date of Patent: February 28, 1984Assignee: Schott Glass Technologies, Inc.Inventors: Lee M. Cook, Karl-Heinz Mader, Roland Schnabel