公开(公告)号：US10577279B2

公开(公告)日：2020-03-03

申请号：US15544061

申请日：2016-01-04

Applicant: Ferro Corporation

Inventor： Enos A. Axtell, III ,  John J. Maloney ,  James D. Walker ,  Srinivasan Sridharan ,  George E. Sakoske

IPC: C03C8/04 ,  C03C8/16 ,  C03C17/04 ,  C03C8/02 ,  C03C8/06 ,  C03C8/08 ,  C03C8/10 ,  C03C8/12 ,  C03C8/14

Abstract: 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.

公开(公告)号：US10562809B2

公开(公告)日：2020-02-18

申请号：US16180096

申请日：2018-11-05

Applicant: Ferro Corporation

Inventor： Cody J. Gleason ,  John J. Maloney ,  Srinivasan Sridharan ,  George E. Sakoske ,  Peter Marley ,  Mohammed H. Megherhi ,  Yie-Shein Her ,  Orville W. Brown ,  Jackie D. Davis ,  Thomas J. Coffey ,  Ellen S. Tormey ,  Stanley Wang ,  David L. Widlewski

IPC: C03C14/00 ,  C03C4/16 ,  C03C10/00 ,  C03C3/118 ,  C04B35/14 ,  H01L23/15 ,  C03B19/00 ,  C03C12/00 ,  H05K1/03

Abstract: 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° C. or below 1100° 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 % SiO2, 5-35 mole % or 0.1-35 mole % B2O3, 0.1-10 mole % or 0.1-25 mole % Al2O3, 0.1-10 mole % K2O, 0.1-10 mole % Na2O, 0.1-20 mole % Li2O, 0.1-30 mole % F. The total amount of Li2O+Na2O+K2O is 0.1-30 mole % of the glass component. The silica powder can be amorphous or crystalline.

公开(公告)号：US20180186120A1

公开(公告)日：2018-07-05

申请号：US15904524

申请日：2018-02-26

Applicant: Ferro Corporation

Inventor： Vineet Dua ,  Chandrashekhar S. Khadilkar ,  Srinivasan Sridharan ,  George E. Sakoske ,  Jackie Davis

IPC: B32B7/04 ,  C03C27/10 ,  C03C27/08 ,  B23K35/02 ,  B23K35/365 ,  B32B37/12 ,  B23K35/22 ,  C03C27/04 ,  B23K35/36

CPC classification number: B32B7/04 ,  B23K35/0244 ,  B23K35/22 ,  B23K35/3613 ,  B23K35/365 ,  B32B37/12 ,  B32B2457/00 ,  C03C27/04 ,  C03C27/08 ,  C03C27/10 ,  Y10T156/10 ,  Y10T428/239

Abstract: 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.

公开(公告)号：US09871176B2

公开(公告)日：2018-01-16

申请号：US15007364

申请日：2016-01-27

Applicant: Ferro Corporation

Inventor： John J. Maloney ,  Srinivasan Sridharan ,  Jackie D. Davis ,  Gregory R. Prinzbach ,  George E. Sakoske

IPC: H01L21/00 ,  H01L33/58 ,  C03C3/093 ,  C03C3/095 ,  C03C4/12 ,  C03C8/04 ,  C03C8/14 ,  C03C10/00 ,  C03C14/00 ,  H01L33/50 ,  H01L51/52

CPC classification number: H01L33/58 ,  C03C3/093 ,  C03C3/095 ,  C03C4/12 ,  C03C8/04 ,  C03C8/14 ,  C03C10/0054 ,  C03C14/006 ,  C03C2214/16 ,  H01L33/502 ,  H01L51/5262 ,  H01L51/5281 ,  H01L2224/48091 ,  H01L2924/181 ,  H01L2933/0033 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: 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.

公开(公告)号：US20180009700A1

公开(公告)日：2018-01-11

申请号：US15544061

申请日：2016-01-04

Applicant: Ferro Corporation

Inventor： Enos A. Axtell, III ,  John J. Maloney ,  James D. Walker ,  Srinivasan Sridharan ,  George E. Sakoske

IPC: C03C8/16 ,  C03C8/04 ,  C03C17/04 ,  C03C8/06 ,  C03C8/02 ,  C03C8/10 ,  C03C8/08 ,  C03C8/12 ,  C03C8/14

Abstract: 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.

公开(公告)号：US20160185651A1

公开(公告)日：2016-06-30

申请号：US14911035

申请日：2014-10-06

Applicant: Ferro Corporation

Inventor： Srinivasan Sridharan ,  Orville W. Brown ,  George E. Graddy, JR.

IPC: C03C8/16 ,  H05K3/20 ,  C09K5/14 ,  H05K1/03 ,  H05K1/05

CPC classification number: C03C8/16 ,  C03C3/097 ,  C03C8/08 ,  C03C8/14 ,  C03C2204/00 ,  C03C2207/08 ,  C09K5/14 ,  H01B3/087 ,  H05K1/0306 ,  H05K1/05 ,  H05K3/20

Abstract: High thermal conductivity dielectric materials systems or pastes are useful on aluminum alloy substrates for LED and high power circuitry applications.

Abstract translation: 高导热介电材料系统或糊料可用于铝合金基板，用于LED和大功率电路应用。

公开(公告)号：US20160059339A1

公开(公告)日：2016-03-03

申请号：US14931957

申请日：2015-11-04

Applicant: Ferro Corporation

Inventor： Srinivasan Sridharan ,  Robert P. Blonski ,  Chandrashekhar S. Khadilkar ,  John J. Maloney

IPC: B23K1/00 ,  B23K1/005 ,  H01L31/18 ,  B23K1/19 ,  B23K35/26 ,  B23K1/002 ,  B23K1/06

CPC classification number: B23K1/0008 ,  B23K1/0016 ,  B23K1/002 ,  B23K1/005 ,  B23K1/0053 ,  B23K1/0056 ,  B23K1/06 ,  B23K1/19 ,  B23K31/02 ,  B23K35/262 ,  C03C27/08 ,  H01G9/2077 ,  H01L23/10 ,  H01L31/048 ,  H01L31/0488 ,  H01L31/18 ,  H01L51/5246 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/12044 ,  H05K13/00 ,  Y02E10/50 ,  Y10T156/10 ,  Y10T156/1062 ,  H01L2924/00

Abstract: Solder can be used to wet and bind glass substrates together to ensure a hermetic seal that superior (less penetrable) than conventional polymeric (thermoplastic or thermoplastic elastomer) seals in electric and electronic applications.

公开(公告)号：US12195391B2

公开(公告)日：2025-01-14

申请号：US17614736

申请日：2020-05-22

Applicant: Ferro Corporation

Inventor： Enos A. Axtell, III ,  Joseph E. Sarver ,  John J. Maloney ,  Srinivasan Sridharan ,  George E. Sakoske

IPC: C03C8/06 ,  C03C3/064 ,  C03C3/066 ,  C03C3/091 ,  C03C3/093 ,  C03C3/118 ,  C03C4/00 ,  C03C8/02 ,  C03C8/04

Abstract: 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.

公开(公告)号：US20220234943A1

公开(公告)日：2022-07-28

申请号：US17614620

申请日：2020-05-22

Applicant: Ferro Corporation

Inventor： Enos A. Axtell, III ,  John J. Maloney ,  Cody J. Gleason ,  Srinivasan Sridharan ,  George E. Sakoske

IPC: C03C8/20 ,  C03C8/04 ,  C03C8/16 ,  C03C8/10

Abstract: Colored CTE modifiers may be added to a glass frit system to modify the CTE of a resulting fired enamel. The CTE modifier is colored. The colored CTE modifier may include a modified Pseudo-Brookite type material having a formula Al2TiO5, where Al and/or Ti are partially substituted with one or more coloring ions including Fe, Cr, Mn, Co, Ni, and Cu; a modified Cordierite type material having a formula Mg2Al4Si5O18, wherein Mg and/or Al is partially substituted with one or more of the coloring ions; a Perovskite type material having a formula Sm1−xSrxMnO3−δ, where x=0.0-0.5 and δ=0.0-0.25, or a modified version of the Perovskite type material wherein Sr is partially substituted with Ba and/or Ca; a modified magnesium pyrophosphate type material having a formula Mg2P2O7 wherein Mg is substituted with Co and/or Zn ions; or combinations thereof.

公开(公告)号：US11367812B2

公开(公告)日：2022-06-21

申请号：US16891527

申请日：2020-06-03

Applicant: Ferro Corporation

Inventor： Cody J. Gleason ,  Srinivasan Sridharan ,  George E. Sakoske ,  Ellen S. Tomey ,  Chao Ma ,  Jackie D. Davis ,  Yi Yang ,  Stanley Wang

IPC: H01L33/50 ,  H01L33/48

Abstract: 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.