Fusion Seals (frit Plus Material Other Than Glass) Patents (Class 501/15)
  • Patent number: 7968200
    Abstract: The ceramic product provided by the present invention is provided with at least two ceramic members bonded to each other, and the bond parts between these ceramic members bonded to each other are formed from glass having leucite crystals precipitated within the glass matrix.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: June 28, 2011
    Assignee: Noritake Co., Ltd
    Inventors: Yosuke Takahashi, Sumihito Sago, Seiji Yamada, Masayoshi Hirano
  • Patent number: 7964521
    Abstract: The present invention relates to a getter paste composition, and more particularly, to a getter paste composition which is quickly densified at low densification temperatures to be applied to a device that is weak to heat, provides good adhesiveness, controls moisture and gas effectively and is screen-printable to thereby improve productivity.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: June 21, 2011
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Jung-Hyun Son, Sang-Kyu Lee, Han-Bok Joo, Jong-Dai Park
  • Patent number: 7943060
    Abstract: The invention is directed to a process for making screen-printable getter composition comprising: (a) glass frit; and (b) pre-hydrated desiccant material; dispersed in (c) organic medium. The desiccant material is pre-hydrated to reach its saturation level of moisture absorption. The process of pre-hydration can be done by exposing the desiccant in a normal temperature/humidity environment of for example, 25° C. and 50-60% RH. For 24 to 48 hours or up to the time when weight gain (due to moisture absorption) stops increasing. An accelerated hydration process in a chamber with higher than normal humidity level (i.e. 50% Relative Humidity) is also applicable to shorten the time of exposure to fully hydrate the desiccant material.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: May 17, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Carl B. Wang, Christopher John Roach, Fong-Pei Chang
  • Patent number: 7943059
    Abstract: The invention is directed to a screen-printable getter composition comprising: (a) glass frit; dispersed in (b) organic medium. The invention is further directed to a screen-printable thick film getter composition comprising: (a) glass frit; and (b) desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: May 17, 2011
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Yong Cho, Terri Cardellino, James Daniel Tremel
  • Patent number: 7923393
    Abstract: The present invention relates to a low melting point frit paste composition and a sealing method for an electric element using the same, and more particularly, to a low melting point frit paste composition which is sealable and appropriate for a flat panel, protects an element weak to heat and improves a process yield with good print properties, and a sealing method for an electric element using the same.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: April 12, 2011
    Assignee: DONGJIN SEMICHEM Co., Ltd.
    Inventors: Jung-Hyun Son, Sang-Kyu Lee, Han-Bok Joo
  • Patent number: 7910506
    Abstract: The glass composite has a linear thermal expansion coefficient ?(20-300) of 1.8×10?6K?1 to 2.4×10?6K?1, a glass transformation temperature Tg of less than 650° C., and a composition, in weight percent based on oxide content, of: 5-9, B2O3; 1-3, Na2O; 15-22, Al2O3; 61-68, SiO2; 0.2-0.5, K2O; and 5.5-8.5, MgO. It can be made by sintering a mixture of 40 to 60 wt. % of a borosilicate glass powder and 60 to 40 wt. % of a cordierite powder. The powder mixture can be used to make a glass solder for joining parts, to make a sintered body with thermal shock resistance, or for glazing or soldering PZT ceramics.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: March 22, 2011
    Assignee: Schott AG
    Inventors: Dieter Goedeke, Susanne Schmid
  • Patent number: 7897530
    Abstract: Glass-ceramic sealant is disclosed for planar solid oxide fuel cells. The glass-ceramic sealant includes 0 to 40 mol % of silicon oxide, 0 to 15 mol % boron oxide, 0 to 10 mol % of aluminum oxide, 0 to 40 mol % of barium oxide, 0 to 15 mol % of calcium oxide, 0 to 15 mol % of lanthanum oxide and 0 to 5 mol % of zirconium dioxide. At 0° C. to 600° C., the thermal expansion coefficient of the sealant is 8 to 10 ppm/° C.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: March 1, 2011
    Assignee: Atomic Energy Council-Institute of Nuclear Energy Research
    Inventors: Chien-Kuo Liu, Tung-Yuan Yung, Kin-Fu Lin, Ruey-Yi Lee, Tzang-Sheng Lee
  • Patent number: 7892996
    Abstract: A lead-free sealing material is provided, which contains a glass with a composition including 47.5-67.5 mole % SnO, 2.5-15 mole % MgO, and 30-40 mole % P2O5. The lead-free sealing material has excellent chemical durability, low melting temperature, and good flowability during heating. The lead-free material is particularly suitable to be used as a sealing material. The lead-free sealing material may additionally contain low-thermal-expansion powdered fillers to reduce the thermal expansion coefficient of the resulting sealing material.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: February 22, 2011
    Assignees: Tatung Company, Tatung University
    Inventors: Jiin-Jyh Shyu, Chih-Hsien Yeh
  • Patent number: 7863207
    Abstract: The present invention relates to a glass frit and a sealing method for an electric element using the same, and more particularly, to a glass frit which provides a good sealing effect to moisture and gas and is processable at low temperatures, and a sealing method for an electric element using the same.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: January 4, 2011
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Jung-Hyun Son, Sang-Kyu Lee, Han-Bok Joo, Jong-Dai Park
  • Patent number: 7847483
    Abstract: Disclosed is a glass composition composed of an oxide glass wherein the percentages of constitutional elements other than oxygen (O) expressed in atomic % are as follows: boron (B) is not less than 56% and not more than 72%; silicon (Si) is not less than 0% and not more than 15%; Zinc (Zn) is not less than 0% and not more than 18%; potassium (K) is not less than 8% and not more than 20%; and the total of K, sodium (Na) and lithium (Li) is not less than 12% and not more than 20%. This glass composition further may contain at least one of magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba) in an amount of more than 0% and not more than 5%, and molybdenum (Mo) and/or tungsten (W) in an amount of more than 0% and not more than 3%.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: December 7, 2010
    Assignee: Panasonic Corporation
    Inventors: Osamu Inoue, Shinya Hasegawa, Miyuki Nakai, Tsutomu Koshizuka
  • Publication number: 20100255978
    Abstract: A method for making an article from glass comprises providing a substrate including an outer surface; providing at least a first glass comprising at least two different metal oxides, wherein the first glass has a Tg and Tx, and wherein the difference between the Tg and the Tx of the first glass is at least 5K, the first glass containing less than 20% by weight Si02, less than 20% by weight B2O3, less than 40% by weight P2O5, and less than 50% by weight PbO; heating the first glass at or below ambient pressure to above its Tg such that at least a portion of the glass wets at least a portion of the outer surface of the substrate; and cooling the glass to provide an article comprising ceramic comprising the glass attached to the at least a portion of the outer surface of the substrate. The porosity of the ceramic is less than 20% by volume.
    Type: Application
    Filed: May 9, 2008
    Publication date: October 7, 2010
    Inventors: Anatoly Z. Rosenflanz, Jean A. Tangeman
  • Patent number: 7799712
    Abstract: The low melting solder glass contains, in wt. % on an oxide basis, >1-2, SiO2; 5-10, B2O3; 4.5-12, ZnO; 79-88, Bi2O3; 0.0, CeO2; and 0.6-2, Al2O3, and a weight ratio of SiO2 to Al2O3 of <2. The solder glass preferably contains from 80.5 to 85 wt. % of Bi2O3 and is free of lead. This solder glass has a linear thermal expansion coefficient ?(20-300) of <11.5×10?6/K and a transformation temperature Tg of <380° C. A solder glass preparation for connecting or sealing a glass part with a metal part contains the low melting solder glass and up to 20 wt. % of ?-eucryptite, cordierite, mullite, willemite or zircon.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: September 21, 2010
    Assignee: Schott AG
    Inventors: Dieter Goedeke, Peter Brix
  • Publication number: 20100222197
    Abstract: Transition metal doped Sn phosphate glass compositions and methods of making transition metal doped Sn phosphate glass compositions are described which can be used for example, in sealing applications.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 2, 2010
    Inventor: Bruce Gardiner Aitken
  • Publication number: 20100178532
    Abstract: A seal structure is provided for an energy storage device. The seal structure includes a first sealing glass composition and a second sealing glass composition joining an ion-conducting first ceramic to an electrically insulating second ceramic. The first sealing glass composition includes less than or equal to about 20 weight percent silica based on the weight of the first sealing glass composition. The second sealing glass composition includes greater than or equal to about 40 weight percent silica based on the weight of the second sealing glass composition. A method for making the seal structure is provided. An article comprising the seal structure is also provided.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 15, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Andrew Philip Shapiro, Dong-Sil Park, Jian Wu, Craig Stringer
  • Patent number: 7741237
    Abstract: There is described a sealing composition for sealing aluminum nitride and aluminum oxynitride ceramics comprising: a mixture of SiO2, at least one other metal oxide, and a silicon additive comprising at least one of silicon metal or a silicide. The silicon additive acts to suppress the formation of nitrogen bubbles during the sealing of articles comprised of aluminum nitride or aluminum oxynitride ceramics, e.g., as in the case of a ceramic discharge vessel for a high intensity discharge lamp.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: June 22, 2010
    Assignee: Osram Sylvania Inc.
    Inventors: Yi Zheng, Richard C. Marlor, George C. Wei
  • Patent number: 7699999
    Abstract: The invention is directed to a screen-printable getter composition comprising: (a) glass frit; dispersed in (b) organic medium. The invention is further directed to a screen-printable thick film getter composition comprising: (a) glass frit; and (b) desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: April 20, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yong Cho, Terri Cardellino, James Daniel Tremel
  • Patent number: 7695831
    Abstract: A coating composition and a cooking device and/or cooking receptacle coated with the coating composition are described. The coating composition includes 10 to 30 wt. % of SiO2, 10 to 30 wt. % of P2O5, 10 to 30 wt. % of Al2O3, 1 to 20 wt. % of TiO2, 7 to 15 wt. % of Na2O, 7 to 15 wt. % of K2O, 5 to 10 wt. % of ZrO2, 2 to 5 wt. % of BaO, 2 to 5 wt. % of B2O3, 1 to 2 wt. % of MnO2, and an adhesion enhancer. The coating composition provides favorable thermal resistance, acid resistance and mechanical properties, such that a cooking device and/or receptacle coated with the coating composition may be easily cleaned at a relatively low temperature.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: April 13, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jong Chull Shon, Hyang Ki Kim, Ki Suk Jeon, Tae Woo Kim, Jae Man Joo, Seok Weon Hong, Jong Hak Hyun, Jae Jong Oh
  • Publication number: 20100086825
    Abstract: According to one embodiment a solid oxide fuel cell device incorporates a seal resistant to hydrogen gas permeation at a in the range of 600° C. to 9000 C, the seal having a CTE in the 100×10?7/° C. to 120×10?7/° C., wherein the seal includes a sealing material that comprises in weight %, of: (i) 80 to 100 wt % of glass frit, wherein the glass frit includes in mole % MgO, 0-10% CaO, 0-30% BaO, 30-50% B2O3, 0-40% Al2O3, 10-30% SiO2, 10-30%; and (ii) a filler, 0 wt % to 20 wt %.
    Type: Application
    Filed: April 3, 2008
    Publication date: April 8, 2010
    Inventors: Lisa Ann Lamberson, Robert Michael Morena, Earl James Sanford, Yves Thibault, Bryan Ray Wheaton
  • Patent number: 7691288
    Abstract: The invention is directed to a process for making screen-printable getter composition comprising: (a) glass frit; and (b) pre-hydrated desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure. The desiccant material is pre-hydrated to reach its saturation level of moisture absorption. The process of pre-hydration can be done by exposing the desiccant in a normal temperature/humidity environment of for example, 25° C. and 50-60% RH. For 24 to 48 hours or up to the time when weight gain (due to moisture absorption) stops increasing.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: April 6, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Carl B. Wang, Christopher John Roach, Fong-Pei Chang
  • Patent number: 7678457
    Abstract: This invention provides a thick-film type dielectric with desired adhesivity to the base and very good insulation properties. The dielectric of the present invention includes a lower dielectric layer made of a photosensitive composition and an upper dielectric layer which is made of a photosensitive composition and formed on the aforementioned lower dielectric layer. The softening point (T1) of the primary glass powder used for the aforementioned lower dielectric layer, the softening point (T2) of the primary glass powder used for the aforementioned upper dielectric layer, and the firing temperature (T3) of the aforementioned primary glass powder satisfy the following relationship: T1<T3<T2<T3+30° C.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: March 16, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Keiichiro Hayakawa, Masakatsu Kuroki
  • Patent number: 7674735
    Abstract: The invention is directed to highly crystalline, frit-sintered glass-ceramic materials and seals made using them that are suitable for solid oxide fuel cell applications. The seals have a coefficient of thermal expansion in the range of 70-130×10?7° C., preferably 85-115×10?7° C. The glass-ceramic materials have a crystalline component and a glass component, the crystalline component being >50% of the glass-ceramic and the glass component being <50%. In one preferred embodiment the crystalline component is >75%. Regarding the crystalline component only, >50% of the crystals in the crystalline component of the glass-ceramic has a structure selected from the structural groups represented by walstromite, cyclowollastonite, ?-(Ca,Sr)SiO3, kalsilite, kaliophilite and wollastonite (the primary crystalline phase) and the remaining <50% of the crystalline component is at least one secondary crystalline phase.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: March 9, 2010
    Assignee: Corning Incorporated
    Inventors: Michael Edward Badding, Sasha Marjanovic, Linda Ruth Pinckney, Dell Joseph St Julien
  • Patent number: 7659220
    Abstract: There is described a sealing composition for sealing aluminum nitride and aluminum oxynitride ceramics comprising: a mixture of SiO2, at least one other metal oxide, and a silicon additive comprising at least one of silicon metal or a silicide. The silicon additive acts to suppress the formation of nitrogen bubbles during the sealing of articles comprised of aluminum nitride or aluminum oxynitride ceramics, e.g., as in the case of a ceramic discharge vessel for a high intensity discharge lamp.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: February 9, 2010
    Assignee: Osram Sylvania Inc.
    Inventors: Yi Zheng, Richard C. Marlor, George C. Wei
  • Publication number: 20100019674
    Abstract: A high intensity discharge lamp includes an arc tube with a chemical fill, capillaries extended from the arc tube, electrodes fed through the capillaries into the arc tube, and a frit seal that seals the capillaries, where the frit seal includes silica (SiO2) in a range of more than 0 wt % to less than 5 wt %, alumina (Al2O3), and one of dysprosia (Dy2O3) and yttrium oxide (Y2O3). This frit seal material can withstand a higher operating temperature so that the length of the capillaries can be reduced compared to those sealed with conventional frit seal material.
    Type: Application
    Filed: July 28, 2008
    Publication date: January 28, 2010
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Arlene Hecker, Jeffrey Holt, Dana Caldwell
  • Patent number: 7648930
    Abstract: The glass for a fluorescent light with a high hydrolytic resistance, which has composition, in % by weight based on oxide content of: SiO2, 63-75; B2O3, 15-18; Al2O3, 3.2-4.5; Na2O, 1-2; K2O, 2-6; ?Na2O+K2O, 3-8; MgO, 0-8; CaO, 0-10; SrO, 0-10; BaO, 0-10; ZnO, 0-5; ?MgO+CaO+SrO+BaO+ZnO, 0-10; ZrO2, 0-3; CeO2, 0-10; Fe2O3, 0-1; WO3, 0-3; Bi2O3, 0-5; MoO3, 0-3; TiO2, 0-10; ?Hf+Ta+W+Re+Os+Ir+Pt+La+Pr+Nd+Sm+Eu+Gd+Tb+Dy+Ho+Er+Tm+Yb+Lu in oxidic form, 0 to 5% by weight, as well as one or more conventional refining agents. The glass is characterized in that it contains no lithium and has a weight ratio of Na2O to K2O of less than one.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: January 19, 2010
    Assignee: Schott AG
    Inventors: Joerg Fechner, Franz Ott
  • Patent number: 7648931
    Abstract: The present invention relates to a sealing glass composition that excludes Pb, i.e., an environmentally harmful material, and a flat panel display apparatus using the same. A sealing glass composition of the present invention comprises Sb2O3 of 20 mol % to 50 mol %, B2O3 of 30 mol % to 70 mol %, SiO2 of 5 mol % to 15 mol % and Al2O3 of 0 mol % to 15 mol %. The flat display apparatus of the present invention has a front panel and a rear panel, which are combined together with a sealing glass composition with a predetermined distance therebetween.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: January 19, 2010
    Assignee: LG Electronics Inc.
    Inventors: Jong Heo, Sungho Woo, Hyunwook Kim, Byungjun Mun
  • Publication number: 20090286664
    Abstract: A solid oxide fuel cell device includes layers of solid electrolyte, cathode plates, anode plates, a frame and a non-contaminating, electrochemically stable sealing material. The sealing material may have a CTE of about 95×10?7/° C. to about 115×10?7/° C. The sealing material may include from about 65 wt % to about 100 wt % of glass frit and from about 0 wt % to about 35 wt % of a filler material. The glass frit may include from about 0 mol % to about 43 mol % of a metal oxide expressed as RO wherein R comprises magnesium, calcium, strontium, barium, zinc and/or combinations thereof. The glass frit may also include from about 0 mol % to about 5 mol % Al2O3; from about 0 mol % to about 7 mol % TiO2; and from about 41 mol % to about 60 mol % SiO2.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 19, 2009
    Inventors: Melinda Ann Drake, Lisa Ann Lamberson, Robert Michael Morena
  • Patent number: 7615506
    Abstract: Tungsten-doped tin-fluorophosphate glasses are described herein which exhibit excellent humidity resistance, thermal resistance, and have a low glass transition temperature which makes them suitable for low temperature sealing applications, such as for encapsulating electronic components. In one embodiment, these glasses comprise 55-75% Sn, 4-14% P, 6-24% O, 4-22% F, and 0.15-15% W on a weight percent elemental basis.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: November 10, 2009
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Shari Elizabeth Koval, Mark Alejandro Quesada
  • Patent number: 7611645
    Abstract: The present invention is directed to a thick film composition for use in low temperature co-fired ceramic circuits comprising, based on weight percent total thick film composition: (a) 30-98 weight percent finely divided particles selected from noble metals, alloys of noble metals and mixtures thereof; (b) one or more selected inorganic binders and/or mixtures thereof, and dispersed in (c) organic medium, and wherein said glass compositions are immiscible or partially miscible with remnant glasses present in the low temperature co-fired ceramic substrate glasses at the firing conditions. The present invention is further directed to methods of forming multilayer circuits utilizing the above composition and the use of the composition in high frequency applications (including microwave applications).
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: November 3, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kumaran Manikantan Nair, Mark Frederick McCombs
  • Patent number: 7585798
    Abstract: A lead-free glass material for use in sealing, which has a glass composition being free of lead and exhibits high performance in the range of choices for the material to be sealed, the sealing processability, the sealing quality and the like, has a glass composition including four types of metal oxides of V2O5, ZnO, BaO and P2O5 as essential ingredients.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: September 8, 2009
    Assignee: Yamato Electronic Co., Ltd.
    Inventors: Masahiro Yoshida, Yasuo Hatate, Tsugumitsu Sarata, Yoshimitsu Uemura, Tomoyuki Honda
  • Publication number: 20090214923
    Abstract: The ceramic product provided by the present invention is provided with at least two ceramic members bonded to each other, and the bond parts between these ceramic members bonded to each other are formed from glass having leucite crystals precipitated within the glass matrix.
    Type: Application
    Filed: February 25, 2009
    Publication date: August 27, 2009
    Applicant: Noritake Co., Ltd.
    Inventors: Yosuke Takahashi, Sumihito Sago, Seiji Yamada, Masayoshi Hirano
  • Patent number: 7560401
    Abstract: Frits, obscuration enamel compositions including frits and automotive windshields having obscuration enamel compositions applied thereto are described. According to one or more embodiments, the obscuration enamel composition comprises a paste component and a frit component having Bi2O3, SiO2 and B2O3 and being substantially free of Na2O. In other embodiments, a reducing agent is included in the frit component. Obscuration enamels of some embodiments have a total solids content of at least 80% by weight.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: July 14, 2009
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Robert Prunchak, Matthew Sgriccia
  • Publication number: 20090142984
    Abstract: Packages for elements, e.g., OLEDs, that are temperature sensitive are provided. The packages have a first glass substrate (12), a second glass substrate (16), and a wall (14) that separates the first and second substrates (12,16) and hermetically seals at least one temperature sensitive element (18,28,36) between the substrates (12,16). The wall (14) comprises a sintered frit and at least a portion of the wall is laser sealed to the second substrate (16) by melting a glass component of the sintered frit. The minimum width (40) of the laser-sealed portion of the wall (14) at any location along the wall (14) is greater than or equal to 2 millimeters so as to provide greater hermeticity and strength to the package. The laser sealing is performed without substantially degrading the temperature sensitive element(s) (18,28,36) housed in the package.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventors: Stephan Lvovich Logunov, John David Lorey, Victor Marino Schneider
  • Patent number: 7521387
    Abstract: A sealant composition for use in sealing solid oxide fuel cells is provided which comprises a glass component which comprises a mixture of alkali-free inorganic oxides, and an optional filler component dispersed in the glass component, said filler component being up to 40% by weight of the composition. The glass component can include, on a mole basis, 20 to 50% BaO, 1 to 10% Y2O3, 5 to 20% B2O3, 10 to 30% SiO2, 3 to 35% MgO, 2 to 20% CaO, 1 to 10% ZnO, and 0 to 5% ZrO2, and exemplary filler components include zirconia, alumina, barium titanate, strontium titanate, and combinations thereof.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: April 21, 2009
    Assignee: General Electric Company
    Inventors: Liang A. Xue, Jean Yamanis, James Piascik, Estela T. Ong
  • Publication number: 20090069164
    Abstract: A hermetically sealed glass package preform is provided comprising a glass substrate; a frit comprising 65-100 wt. % of a base glass and about 0-35 wt. % of a filler; wherein the base glass comprises: about 0-5 mole % K2O; about 0-35 mole % Sb2O3; about 0-20 mole % ZnO; about 10-40 mole % P2O5; about 10-60 mole % V2O5; about 0-5 mole % TiO2; about 0-5 mole % B2O3; about 0-5 mole % SiO2; about 0-5 mole % WO3; and about 1-10 mole % of a metal oxide selected from the group consisting of Fe2O3, Nd2O3, La2O3, Ce2O4, Pr6O11, Er2O3, and CeO2; wherein the base glass has a mean particle size distribution of less than about 3 ?m; and wherein the filler has a mean particle size distribution of between about 3 and 7 ?m. The frit is sintered in an atmosphere less oxidizing than air at a temperature of between about 390° C. to 415° C.
    Type: Application
    Filed: November 28, 2006
    Publication date: March 12, 2009
    Applicant: Corning Incorporated
    Inventors: Lisa Ann Lamberson, Robert Michael Morena
  • Publication number: 20090064717
    Abstract: The present invention relates to a glass frit and a sealing method for an electric element using the same, and more particularly, to a glass frit which provides a good sealing effect to moisture and gas and is processable at low temperatures, and a sealing method for an electric element using the same.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 12, 2009
    Applicant: DONGJIN SEMICHEM Co., Ltd.
    Inventors: JUNG-HYUN SON, SANG-KYU LEE, HAN-BOK JOO, JONG-DAI PARK
  • Patent number: 7494604
    Abstract: The invention is directed to a thick film getter composition comprising: (a) desiccant material; dispersed in (b) organic medium comprising (1) curable organic polymeric binder; (2) monomer; and (3) photoinitiator.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: February 24, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yong Cho, Jay Robert Dorfman
  • Publication number: 20090011915
    Abstract: The invention is directed to lead-free glass frit compositions that can be used as sealing frits, the compositions being a blend of: (1) an alkali-ZnO—P2O5 glasses; and (2) at least one cerammed filler material having a crystalline phase selected from the group consisting of beta-quartz, beta-eucryptite, cordierite, and beta-spodumene. The blends of the invention have flow characteristics that enable them to be used at sealing temperatures in the range of 450-550° C., and a CTE value in the range of 60-96×10?7/° C.
    Type: Application
    Filed: September 11, 2008
    Publication date: January 8, 2009
    Inventors: Melinda Ann Drake, Sasha Marjanovic, Lisa A. Lamberson, Robert Michael Morena
  • Patent number: 7470640
    Abstract: The invention is directed to highly crystalline, frit-sintered glass-ceramic materials and seals made using them that are suitable for solid oxide fuel cell applications. The seals have a coefficient of thermal expansion in the range of 70-130×10?7° C., preferably 85-115×10?7° C. The glass-ceramic materials have a crystalline component and a glass component, the crystalline component being>50% of the glass-ceramic and the glass component being<50%. In one preferred embodiment the crystalline component is >75%. Regarding the crystalline component only,>50% of the crystals in the crystalline component of the glass-ceramic has a structure selected from the structural groups represented by walstromite, cyclowollastonite, ?-(Ca,Sr)SiO3, kalsilite, kaliophilite and wollastonite (the primary crystalline phase) and the remaining <50% of the crystalline component is at least one secondary crystalline phase.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: December 30, 2008
    Assignee: Corning Incorporated
    Inventors: Michael Edward Badding, Sasha Marjanovic, Linda Ruth Pinckney, Dell Joseph St Julien
  • Patent number: 7452607
    Abstract: Provided is a nonlead glass for covering an electrode, which comprises, in mol %, B2O3 15-65%, SiO2 2-38%, MgO 2-30%, MgO+CaO+SrO+BaO 5-45%, Li2O 1-15%, Li2O+Na2O+K2O 2-25% and others, and which comprises ZnO 0-15%. Provided is a nonlead glass for covering an electrode, which comprises, in mol %, B2O3 25-65%, SiO2 2-38%, MgO 2-30%, MgO+CaO+SrO+BaO 5-45%, Li2O+Na2O+K2O 2-25%, Al2O3 0-30, TiO 0-10% and ZnO 0-15%.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: November 18, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Hitoshi Onoda, Yu Goshima, Yumiko Aoki
  • Patent number: 7439201
    Abstract: The invention is directed to lead-free glass frit compositions that can be used as sealing frits, the compositions being a blend of: (1) at least one of two glass families which are SnO—ZnO—P2O5 and alkali-ZnO—P2O5 glasses; and (2) at least one cerammed filler material having a crystalline phase selected from the group consisting of beta-quartz, beta-eucryptite, cordierite, and beta-spodumene. The blends of the invention have flow characteristics that enable them to be used at sealing temperatures in the range of 450-550° C., and a CTE value in the range of 60-90×10?7/° C.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: October 21, 2008
    Assignee: Corning Incorporation
    Inventors: Melinda Ann Drake, Sasha Marjanovic, Lisa A. Lamberson, Robert Michael Morena
  • Patent number: 7438829
    Abstract: The invention is directed to a screen-printable getter composition comprising: (a) glass frit; dispersed in (b) organic medium. The invention is further directed to a screen-printable thick film getter composition comprising: (a) glass frit; and (b) desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: October 21, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yong Cho, Terri Cardellino, James Daniel Tremel
  • Patent number: 7425518
    Abstract: Provided with a glass composition including a network-former oxide composed of any one of or both of B2O3 and V2O5 of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: September 16, 2008
    Assignee: Yamato Electronic Co., Ltd.
    Inventors: Masahiro Yoshida, Yasuo Hatate, Tsugumitsu Sarata, Yoshimitsu Uemura, Tomoyuki Honda, Hiroyuki Fukunaga, Masahiro Iwashita
  • Publication number: 20080213482
    Abstract: A method of making a mask for frit sealing a glass envelope comprising depositing a paste onto a glass substrate, depositing a metallic layer overtop the substrate and paste, and removing the paste and a portion of the metallic layer. The paste may be, for example, a glass frit.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 4, 2008
    Inventor: Stephan Lvovich Logunov
  • Patent number: 7410921
    Abstract: The invention is directed to highly crystalline, frit-sintered glass-ceramic compositions having a coefficient of thermal expansion in the range of 85-115×10?7° C. The primary crystal phases of the glass-ceramics of the invention possess a cyclosilicate structure. The glass-ceramic of the invention are useful as metal-to-metal, metal-to-ceramic and ceramic-to-ceramic sealing agents, and also as high-performance coating for metals and ceramics. In their broadest composition the glass-ceramic contain, in weight percent, 30-55% SiO2, 5-40% CaO, 0-50% BaO, 0.1-10% Al2O3, and 0-40% SrO, wherein the sum of CaO+BaO+SrO is in the range of 35-65 wt. %. Optionally, the glass-ceramic compositions may contain at least one from the group of >0-15 wt. % MgO and >0-10 wt. % ZnO. Also optionally, the glass ceramic compositions may contain >0-10 wt. % of at least one transition metal or rare earth metal oxide.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: August 12, 2008
    Assignee: Corning Incorporated
    Inventors: Linda Ruth Pinckney, Steven Alvin Tietje
  • Patent number: 7407902
    Abstract: A Bismuth glass composition including 0.5 to 14 wt % of SiO2, 3 to 15 wt % of B2O3, 4 to 22 wt % of ZnO, 55 to 90 wt % of Bi2O3 and 4 wt % or less of Al2O3, and further including 5 wt % or less of an oxide of Group A, 12 wt % or less of an oxide of Group B and 0.1 to 10 wt % of an oxide of Group C, wherein the oxide of Group A is at least one selected from the group consisting of Li2O, Na2O and K2O, the oxide of Group B is at least one selected from the group consisting of MgO, CaO, SrO and BaO, and the oxide of Group C is at least one selected from the group consisting of Sc2O3, Y2O3, La2O3, CeO2, Pr2O3, Nd2O3, Sm2O3, Eu2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3 and Lu2O3.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: August 5, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinya Hasegawa, Hiroshi Onishi, Mikie Kanai, Tetsuya Kamimoto
  • Publication number: 20080176730
    Abstract: A method of fabricating a double-glazing container is disclosed. The double-glazing container comprises an inner glass and an outer glass that are combined with each other by fusing, perforating and bottom-sealing. A handle may be attached thereon or a beak may be shaped if desired. The resultant double-glazing container is beautiful, and is able to keep warmth and isolate heat for a long time.
    Type: Application
    Filed: January 19, 2007
    Publication date: July 24, 2008
    Inventor: Huang Piao Chen
  • Publication number: 20080124558
    Abstract: A frit composition useful for sealing a light emitting device is disclosed. The frit composition comprises a glass portion comprising a base component and at least one absorbing component. The glass portion of the frit comprises silica, boron oxide, optionally alumina, and (a) cupric oxide and/or a (b) combination of ferric oxide, vanadium pentoxide, and optionally titanium dioxide. Also disclosed is an article comprising a substrate and a frit, and a glass package comprising two substrates and a frit positioned between the substrates. A method for manufacturing a hermetically sealed glass package comprising the deposition of a glass frit and heating of the glass frit to form a hermetic seal is also disclosed.
    Type: Application
    Filed: August 18, 2006
    Publication date: May 29, 2008
    Inventors: Heather Debra Boek, Paul Stephen Danielson, Robert Michael Morena, Kamjula Pattabhirami Reddy
  • Patent number: 7378361
    Abstract: The invention is directed to highly crystalline, frit-sintered glass-ceramic compositions having a coefficient of thermal expansion in the range of 85-115×10?7° C. The primary crystal phases of the glass-ceramics of the invention possess a cyclosilicate structure. The glass-ceramic of the invention are useful as metal-to-metal, metal-to-ceramic and ceramic-to-ceramic sealing agents, and also as high-performance coating for metals and ceramics.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: May 27, 2008
    Assignee: Corning Incorporated
    Inventors: Linda Ruth Pinckney, Steven Alvin Tietje
  • Patent number: 7371335
    Abstract: The invention is directed to a thick film getter composition comprising: (a) desiccant material; dispersed in (b) organic medium comprising (1) curable organic polymeric binder; (2) monomer; and (3) photoinitiator.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: May 13, 2008
    Assignee: E.I. duPont de Nemours and Company
    Inventors: Yong Cho, Jay Robert Dorfman
  • Publication number: 20080090715
    Abstract: The invention is directed to highly crystalline, frit-sintered glass-ceramic materials and seals made using them that are suitable for solid oxide fuel cell applications. The seals have a coefficient of thermal expansion in the range of 70-130×10?7° C., preferably 85-115×10?7° C. The glass-ceramic materials have a crystalline component and a glass component, the crystalline component being >50% of the glass-ceramic and the glass component being <50%. In one preferred embodiment the crystalline component is >75%. Regarding the crystalline component only, >50% of the crystals in the crystalline component of the glass-ceramic has a structure selected from the structural groups represented by walstromite, cyclowollastonite, ?-(Ca,Sr)SiO3, kalsilite, kaliophilite and wollastonite (the primary crystalline phase) and the remaining <50% of the crystalline component is at least one secondary crystalline phase.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 17, 2008
    Inventors: Michael Edward Badding, Sasha Marjanovic, Linda Ruth Pinckney, Dell Joseph St Julien