초록 ▼

A process for forming a hermetic glass-to-metal seal between a conductive pin and an outer body, wherein a corrosion-resistant noble metal (e.g., gold) coating is applied to the conductive pin before the hermetic seal is formed. The process generally includes providing a noble metal-coated conductiv

A process for forming a hermetic glass-to-metal seal between a conductive pin and an outer body, wherein a corrosion-resistant noble metal (e.g., gold) coating is applied to the conductive pin before the hermetic seal is formed. The process generally includes providing a noble metal-coated conductive pin, placing glass having a softening point less than about 650.degree. C. into a cavity of the outer body, inserting the coated conductive pin into a bore in the glass preform, heating the assembly to a temperature in excess of the softening point of the glass but less than about 700.degree. C., and cooling the assembly. The coefficients of thermal expansion of the components of the assembly are preferably selected such that the resulting assembly is a hermetic compression seal.

대표청구항 ▼

[ What is claimed is:] [1.] A process for forming a glass-to-metal seal, said process comprising the steps of:(a) providing a conductive pin having an outer surface, said pin having a layer of a noble metal coated on at least a portion of said outer surface;(b) placing glass within a cavity of an ou

[ What is claimed is:] [1.] A process for forming a glass-to-metal seal, said process comprising the steps of:(a) providing a conductive pin having an outer surface, said pin having a layer of a noble metal coated on at least a portion of said outer surface;(b) placing glass within a cavity of an outer body, said glass having a softening point of less than about 650.degree. C.;(c) inserting said coated pin into said glass;(d) heating said body, said coated pin and said glass to a temperature of at least equal to the softening point of said glass and less than about 700.degree. C.; and(e) cooling said outer body, said coated pin and said glass to solidify said glass and form a glass-to-metal seal.