Ferro Corporation

Heraeus Precious Metals North America Conshohocken LLC

Heracus Precious Metals North America Conshohocken LLC

Ferro Corporatiom

Srinivasan Sridharan

Aziz S Shaikh

Chandrashekhar Sadanand Khadilkar

John J Maloney

George E Sakoske

Robert P Blonski

Jackie D Davis

Steve S Kim

Gregory R Prinzbach

Nazarali Merchant

Orville Washington Brown

Gordon J Roberts

Hong Jiang

Cody J Gleason

Yi Yang

Ivan H Joyce

Klaus Kunze

Ponnusamy Palanisamy

Tung Thanh Pham

Stanley Wang

Jalal Salami

Himal Khatri

George E Graddy, Jr

David L Widlewski

Yie-Shein Her

Enos Ayres Axtell, Iii

Keith M Mason

Robert D Gardner

Andrew M Rohn, Jr

James D Walker

Bradford Smith

Umesh Kumar

Dieter Gödeke

Dietrich Speer

Ellen Schwartz Tormey

Walter J Symes, Jr

Joseph E Sarver

Mohammed H Megherhi

Louis J Gazo

William D Faust

Frank Walter

George C Korn

Hasan B Emlemdi

Kristina McVicker

Phil Maitland

Thomas Joseph Coffey

Peter Marley

Paul S Seman

Michail Moroz

Jerome Anquetil

Jérôme Anquetil

Ellen S Tomey

Chih Cheng Wang

Shahram Seyedmohammadi

Galina Kniajer

Jeffrey David Cosby

James E Henry

Chao Ma

Vineet Dua

Tack J Whang

Dongshe Zhang

Subramanian Vasudevan

Enos A Axtell

Bradford J Smith

Enos A Iii Axtell

David Widlewski

Dieter GÖDEKE

Walter Symes

Yie-Shen Her

Jr Andrew M Rohn

Virginia L Whitford

Orville Washsington Brown

A marking composition for forming marks or indicia on a substrate is provided for laser marking applications. The composition includes a glass frit, a carrier, and absorber particles. The glass frit includes alkali metal oxides, glass forming oxides, and one or more transition metal oxides. The glass frit is devoid of at least one of bismuth and zinc.

Colored glass frits and related methods for laser marking applications

A phosphor in glass (PiG) cover is provided to modulate the color emitted from an LED chip. The PiG cover includes an active layer including glass and phosphor, and a secondary layer including glass and free of phosphor. The active layer is stacked on the secondary layer to form the PiG cover. Alternately the PiG includes an active layer sandwiched between two secondary layers. Two or more active layers can be stacked to each other or disposed side-by-side. An LED chip is arranged under the PiG cover to form an LED package.

Layered phosphor in glass

A sintered machinable glass-ceramic is provided. The machinable glass-ceramic is formed by mixing phyllosilicate material having a sheet structure, with a glass fit and firing the mixture at relatively low temperatures to sinter the phyllosilicate, while maintaining the sheet-like morphology of the phyllosilicate and its associated cleaving properties. The sintered machinable glass-ceramic can be machined with conventional metal working tools and includes the electrical properties of the phyllosilicate. Producing the sintered machinable glass-ceramic does not require the relatively high-temperature bulk nucleation and crystallization needed to form sheet phyllosilicate phases in situ.

Sintering aid for glasses for machinable phyllosilicate based structures

Modified copper chromite spinel pigments exhibit lower coefficients of thermal expansion than unmodified structures. Three methods exist to modify the pigments: (1) the incorporation of secondary modifiers into the pigment core composition, (2) control of the pigment firing profile, including both the temperature and the soak time, and (3) control of the pigment core composition.

Modified black spinel pigments for glass and ceramic enamel applications

The present invention describes a new method for creating hybrid edge seals using metal, alloy, powder coated metal and other conductive surfaces in between two substrates. The methods utilize various materials, seal designs, and geometries of hybrid seals based on polymeric powder coatings and glass powder coatings.

High performance organic, inorganic or hybrid seals

The present invention relates to a glass, in particular a glass for joining glass panes in order to produce vacuum insulated glasses at processing temperatures of &#x2264;450&#xb0; C., to the corresponding composite glass, and to the corresponding glass paste. The present invention further relates to a vacuum insulated glass produced by means of the glass paste according to the invention, to the production process thereof, and to the use of the glass according to the invention or of the composite glass and of the glass paste. The glass according to the invention is characterized in that said glass comprises the following components in wt %: TeO&#x2014;VOglass in the range of 60-100 wt %, high temperature glasses, selected from the group consisting of lead glass, bismuth glass, zinc glass, barium glass, calcium glass, alkali silicate glass, in the range of 0-20 wt %, and reactive oxides, selected from the group consisting of AlO, YO, LaO, ZnO, BiO, SiO, ZrO, zircon, NbO, VO, TeO, CeO, SnO, SnO, FeO, MnO, CrO, CoO, oxide pigments, or a combination thereof, in the range of 0-20 wt %.

Low-temperature tellurite glass mixtures for vacuum compaction at temperatures of 450 degrees C or less

A method of modifying glass frit involves treating the frit with a grain-boundary-healing compound. The method increases transmission and clarity, and reduces haze of a fired enamel coating made from such modified glass frit as compared to a coating not made from such modified glass frit. The grain-boundary-healing compound influences the chemistry at the grain boundaries to prevent haze. The compound burns out to yield a fluxing material that dissolves alkaline carbonates or bicarbonates on the surface of the glass frit. The dissolved species are incorporated into the enamel coating, thereby promoting the fusion of the glass frit and reducing the amount of haze in the enamel coating. The additives also function to prevent the formation of seed crystals on the surface of the glass frit that may inhibit the fusion of the glass frit.

Grain boundary healing glasses and their use in transparent enamels, transparent colored enamels and opaque enamels

A low K value, high Q value, low firing dielectric material and method of forming a fired dielectric material. The dielectric material can be fired below 950&#xb0; C. or below 1100&#xb0; C., has a K value of less than about 8 at 10-30 GHz and a Q value of greater than 500 or greater than 1000 at 10-30 GHz. The dielectric material includes, before firing a solids portion including 10-95 wt % or 10-99 wt % silica powder and 5-90 wt % or 1-90 wt % glass component. The glass component includes 50-90 mole % SiO, 5-35 mole % or 0.1-35 mole % BO, 0.1-10 mole % or 0.1-25 mole % AlO, 0.1-10 mole % KO, 0.1-10 mole % NaO, 0.1-20 mole % LiO, 0.1-30 mole % F. The total amount of LiO+NaO+KO is 0.1-30 mole % of the glass component. The silica powder can be amorphous or crystalline.

Low K dielectric compositions for high frequency applications

A passivation glass coating composition is provided for forming a fired passivation glass layer on a semiconductor substrate having p-n junction. The passivation glass coating composition includes a glass component that is lead free, cadmium free, alkali metal oxides free, and colored transition metal oxides (i.e. metal oxides of V, Fe, Co, Ni, Cr, Cu, Mn) free. The glass component includes bismuth based glasses, and provides a firing temperature range of 500&#xb0; C. to 900&#xb0; C., and controlled devitrification. Once fired to a semiconductor device, the fired passivation glass layer provides exceptional device performance including no cracking of the fired passivation glass layer, excellent thermal expansion matching to silicon, good chemical resistance to acid and base, and improved device performance.

Passivation glasses for semiconductor devices

The present invention relates to a glass, in particular a glass for the joining of glass panes for the production of vacuum insulating glasses at processing temperatures &#x2264;420&#xb0; C., to the corresponding composite glass, and to the corresponding glass paste. Moreover, the present invention relates to a vacuum insulating glass produced using the glass paste according to the invention, to the production process thereof, and to the use of the inventive glass and/or composite glass, and glass paste. The glass according to the invention is characterized in that it comprises the following components, in units of mol-%: VO5-58 mol-%, TeO40-90 mol-%, and at least one oxide selected from ZnO 38-52 mol-%, or AlO1-25 mol %, or MoO1-10 mol-%, or WO1-10 mol-%, or a combination thereof.

Tellurate joining glass having processing temperatures less than or equal to 420&#xb0; C

Solar cell conductor formulations made are from two silver powders having different particle size distributions, an aluminum powder, and two frit glass compositions having softening points in the range of 250-700&#xb0; C. and whose softening points differ by at least 10&#xb0; C.

Silver solar cell contacts

A method of sealing at least two inorganic substrates together using an induction energy source comprising applying to at least one of the substrates a paste composition including a glass frit, and an induction coupling additive, bringing at least a second substrate into contact with the paste composition, and subjecting the substrates and paste to induction heating, thereby forming a hermetic seal between the two inorganic substrates.

Induction sealing of inorganic substrates

LTCC devices are produced from dielectric compositions comprising a mixture of precursor materials that, upon firing, forms a dielectric material comprising a matrix of titanates of alkaline earth metals, the matrix doped with at least one selected from rare-earth element, aluminum oxide, silicon oxide and bismuth oxide.

Mid-K LTCC compositions and devices

The glass composites include glass frit, that when sintered produce a phosphor-containing layer, suitable for use in optical applications. The glass composites can include a crystallizing glass frit, such that phosphor crystals precipitate from the frit composite during sintering, or can include a non-crystallizing glass composition, such that phosphor is added to the frit composite before sintering. The sintering temperatures of the glass are relatively low so that fluorescence of the phosphors will not substantially degrade during sintering. The resulting phosphor-containing layer can be used in various optical applications including those for converting blue light into various color temperatures of white light.

Glass compositions and glass frit composites for use in optical applications

Paste compositions, methods of making a paste composition, photovoltaic cells, and methods of making a photovoltaic cell contact are disclosed. The paste composition can include a conductive metal component such as aluminum, phosphate glass, phosphorus compounds such as alky! phosphate, and a vehicle. The contact can be formed on a passivation layer on a silicon wafer by applying the paste on the passivation layer and firing the paste. During firing, the metal component can fire through the passivation layer, thereby electrically contacting the silicon substrate.

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Growing community of inventors

Strongsville, OH, United States of America

Srinivasan Sridharan