A heat-dissipating structure is formed by bonding a first member and a second member, each being any of a metal, ceramic, and semiconductor, via a die bonding member; or a semiconductor module formed by bonding a semiconductor chip, a metal wire, a ceramic insulating substrate, and a heat-dissipating base substrate including metal, with a die bonding member interposed between each. At least one of the die bonding members includes a lead-free low-melting-point glass composition and metal particles. The lead-free low-melting-point glass composition accounts for 78 mol % or more in terms of the total of the oxides V2O5, TeO2, and Ag2O serving as main ingredients. The content of each of TeO2 and Ag2O is 1 to 2 times the content of V2O5, and at least one of BaO, WO3, and P2O5 is included as accessory ingredients, and at least one of Y2O3, La2O3, and Al2O3 is included as additional ingredients.

The present invention relates to: a glass composition that can be used as sealing material; and a solid oxide fuel cell using same. A sealing glass composition according to the present invention includes 10-35 wt % of SiO.sub.2, 3-35 wt % of B.sub.2O.sub.3, 30-65 wt % of BaO, 0.1-15 wt % of CaO, 0.1-3 wt % of NiO, and 0.1-3 wt % of CuO. Unlike conventional glass compositions as sealing material, the present sealing glass composition is suitable for use in solid oxide fuel cells that operate at medium-low temperatures, and in particular, has the excellent effect of minimizing sealing adhesion strength degradation even after long-term use.

The present invention relates to: a glass composition that can be used as sealing material; and a solid oxide fuel cell using same. A sealing glass composition according to the present invention includes 10-35 wt % of SiO.sub.2, 3-35 wt % of B.sub.2O.sub.3, 30-65 wt % of BaO, 0.1-15 wt % of CaO, 0.1-3 wt % of NiO, and 0.1-3 wt % of CuO. Unlike conventional glass compositions as sealing material, the present sealing glass composition is suitable for use in solid oxide fuel cells that operate at medium-low temperatures, and in particular, has the excellent effect of minimizing sealing adhesion strength degradation even after long-term use.

An electronic component has an organic member between two transparent substrates, in which outer peripheral portions of the two transparent substrates are bonded by a sealing material containing to melting glass. The low melting glass contains vanadium oxide, tellurium oxide, iron oxide and phosphoric acid, and satisfies the following relations (1) and (2) in terms of oxides. The sealing material is formed of a sealing material paste which contains the low melting glass, a resin binder and a solvent, the low melting glass containing vanadium oxide, tellurium oxide, iron oxide and phosphoric acid, and satisfies the following relations (1) and (2) in terms of the oxides. Thereby, thermal damages to an organic element or an organic material contained in the electronic component can be reduced and an electronic component having a glass bonding layer of high reliability can be produced efficiently.
V.sub.2O.sub.5+TeO.sub.2+Fe.sub.2O+P.sub.2O.sub.5≧90(mass %)  (1)
V.sub.2O.sub.5>TeO.sub.2>Fe.sub.2O.sub.3>P.sub.2O.sub.5 (mass %)  (2)

A glass coating composition for a fuel cell gasket is described. The coating comprises: a glass component effective to form an alkaline solution in the presence of an equivalent amount of water by weight, a binder component, a liquid carrier which is greater than 50% by volume: water, and a retarder effective to inhibit hardening of the composition. The glass coating composition is particularly useful in fuel cell gaskets and provides improved resistance to solidification in an aqueous dispersion.

A feed-through through a housing part of a housing, for example of a battery or a capacitor made of a metal, wherein the housing part has at least one opening, through which at least one conductor is fed in a glass or glass ceramic material, and wherein the conductor has at least two sections in the axial direction, a first section made of a first material, e.g. aluminium, and a second section made of a second material, e.g. copper, as well as a transition from the first to the second material, and wherein the transition from the first to the second material is located in the region of the glass or glass ceramic material, said glass or glass ceramic material being adapted to the metal of the housing in such a way that a compression glass-to-metal seal is formed.

A feed-through through a housing part of a housing, for example of a battery or a capacitor made of a metal, wherein the housing part has at least one opening, through which at least one conductor is fed in a glass or glass ceramic material, and wherein the conductor has at least two sections in the axial direction, a first section made of a first material, e.g. aluminium, and a second section made of a second material, e.g. copper, as well as a transition from the first to the second material, and wherein the transition from the first to the second material is located in the region of the glass or glass ceramic material, said glass or glass ceramic material being adapted to the metal of the housing in such a way that a compression glass-to-metal seal is formed.

An oxidation protection system disposed on a substrate is provided, which may comprise a base layer comprising a first pre-slurry composition comprising a first phosphate glass composition, and/or a sealing layer comprising a second pre-slurry composition comprising a second phosphate glass composition and a strengthening compound comprising boron nitride, a metal oxide, and/or silicon carbide.

Disclosed is a lead-free glass, which is characterized by comprising 5-55 weight % of V.sub.2O.sub.5, 5-75 weight % of TeO.sub.2, 6-20 weight % of a total of RO (at least one selected from the group consisting of MgO, CaO, SrO and BaO) and 0.1-6 weight % of ZnO in a glass component, V.sub.2O.sub.5+TeO.sub.2+RO+ZnO being 70 weight % or greater. From this lead-free glass, a sealing material having fluidity which is capable of sealing at 400° C. or lower can be obtained.

Disclosed is a lead-free glass, which is characterized by comprising 5-55 weight % of V.sub.2O.sub.5, 5-75 weight % of TeO.sub.2, 6-20 weight % of a total of RO (at least one selected from the group consisting of MgO, CaO, SrO and BaO) and 0.1-6 weight % of ZnO in a glass component, V.sub.2O.sub.5+TeO.sub.2+RO+ZnO being 70 weight % or greater. From this lead-free glass, a sealing material having fluidity which is capable of sealing at 400° C. or lower can be obtained.