The present invention is directed to low-cost, low-processing temperature, and simple reinforcement, repair, and corrosion protection for hermetically sealed modules and hermetic connectors. A thin layer of glass is applied over the module's seal or the connector' glass frit. The layer of glass comp
The present invention is directed to low-cost, low-processing temperature, and simple reinforcement, repair, and corrosion protection for hermetically sealed modules and hermetic connectors. A thin layer of glass is applied over the module's seal or the connector' glass frit. The layer of glass comprises an alkali silicate glass. The layer of glass is produced from a material which is a low viscosity liquid at room temperature prior to curing and is cured at low temperatures (typically no more than about 160 degrees Celsius). Subsequent to curing, the layer of glass is intimately bonded to the seal, watertight, and is stable from about negative two-hundred forty-three degrees Celsius to at least about seven-hundred twenty-seven degrees Celsius. The glass layer provides corrosion protection, seals any existing leaks, and possesses good flexibility and adhesion. The resulting bond is hermetic with good aqueous durability and strength similar to that of monolithic structures.
대표청구항▼
1. A method of reinforcing or repairing a hermetic seal for a module, comprising the steps of: sealing a module hermetically;applying a material comprising an alkali silicate over the seal; andcuring the material to form an alkali silicate glass, which performs one selected from reinforcing the seal
1. A method of reinforcing or repairing a hermetic seal for a module, comprising the steps of: sealing a module hermetically;applying a material comprising an alkali silicate over the seal; andcuring the material to form an alkali silicate glass, which performs one selected from reinforcing the seal and repairing the seal, wherein the curing takes place at temperatures of no more than about one-hundred sixty degrees Celsius. 2. The method of claim 1, wherein the material is a low viscosity liquid at a temperature between about sixteen degrees Celsius and about twenty-seven degrees Celsius prior to curing. 3. The method of claim 1, wherein the seal is a metallurgical seal. 4. The method of claim 1, wherein the seal includes at least one fracture caused by one selected from a cohesive failure and an adhesive failure. 5. The method of claim 1, wherein the material comprises SiO2 and M2O, wherein M2O is an alkali oxide. 6. The method of claim 1, wherein the alkali silicate glass is configured to seal any existing leaks in the seal from at least one of a cohesive fracture and an adhesive fracture. 7. The method of claim 1, wherein the module comprises a housing portion, wherein the sealing comprises producing a seal in contact with the housing portion, wherein the applying comprises coating the seal. 8. The method of claim 1, wherein the alkali silicate glass has a SiO2/M2O ratio, wherein M2O is an alkali oxide comprising an alkali metal. 9. A method of repairing a hermetic connector, comprising the steps of: providing the hermetic connector which includes a glass frit with at least one fracture;applying a material containing an alkali silicate over the at least one fracture of the glass frit; andcuring the material to form an alkali silicate glass, which repairs the at least one fracture of the glass frit. 10. The method of claim 9, wherein the material is a low viscosity liquid at a temperature between about sixteen degrees Celsius and about twenty-seven degrees Celsius prior to curing. 11. The method of claim 9, wherein the curing takes place at temperatures of no more than about one-hundred sixty degrees Celsius. 12. The method of claim 9 wherein the at least one fracture in the glass frit was caused by one selected from a cohesive failure and an adhesive failure. 13. The method of claim 9, wherein the glass is applied over an entire surface of the glass frit. 14. The method of claim 9, wherein the hermetic connector comprises a housing which is connected to the glass frit, the glass frit connected to an electrical feedthrough, wherein the glass is applied over an entire surface of the glass frit, wherein the curing seals the at least one fracture. 15. The method of claim 9, wherein the alkali silicate glass has a SiO2/M2O ratio, wherein M2O is an alkali oxide comprising an alkali metal. 16. A method of reinforcing a hermetically sealed module with an alkali silicate glass, comprising: providing a module, the module comprising a housing portion and a hermetic seal, wherein the hermetic seal is in contact with the housing portion and comprises a glass frit;coating the glass frit of the hermetic seal with a material comprising an alkali silicate; andcuring the material to form an alkali silicate glass to reinforce the hermetic seal. 17. The method of claim 16, wherein the alkali silicate glass has a SiO2/M2O ratio, wherein M2O is an alkali oxide comprising an alkali metal. 18. The method of claim 16, wherein the hermetic seal is a metallurgical seal. 19. The method of claim 16, wherein the module is one of a satellite or an optical device.
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