Process for fabricating a hermetic glass-to-metal seal

Details Process for fabricating a hermetic glass-to-metal seal Process for fabricating a hermetic glass-to-metal seal

1994-08-04

1998-01-20

Speer, Timothy

Glass manufacturing

Processes

Fusion bonding of glass to a formed part

65 596, 65 597, C03C 2702

Patent

active

057097240

ABSTRACT:
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.

REFERENCES:
patent: 2696191 (1954-12-01), Sheehan
patent: 3082691 (1963-03-01), Evans et al.
patent: 3134329 (1964-05-01), Zeman
patent: 3223599 (1965-12-01), Taylor
patent: 3291046 (1966-12-01), Dahl
patent: 3308758 (1967-03-01), Stadler et al.
patent: 3426682 (1969-02-01), Corren et al.
patent: 3429260 (1969-02-01), Corren
patent: 3600017 (1971-08-01), Scherer
patent: 3695179 (1972-10-01), Ralnone et al.
patent: 3847628 (1974-11-01), Modebadze
patent: 3858392 (1975-01-01), Evans et al.
patent: 3971320 (1976-07-01), Lee
patent: 3983624 (1976-10-01), Gross
patent: 4103619 (1978-08-01), Fletcher et al.
patent: 4249673 (1981-02-01), Katoh et al.
patent: 4267567 (1981-05-01), Nygaard et al.
patent: 4411680 (1983-10-01), Kyle
patent: 4441427 (1984-04-01), Barrett
patent: 4445920 (1984-05-01), Smith
patent: 4484523 (1984-11-01), Smith et al.
patent: 4509880 (1985-04-01), Wamstad
patent: 4706382 (1987-11-01), Suppinger et al.
patent: 4716082 (1987-12-01), Ahearn et al.
patent: 4743302 (1988-05-01), Dumesnil et al.
patent: 4788382 (1988-11-01), Ahearn et al.
patent: 4810849 (1989-03-01), Heideman
patent: 5026963 (1991-06-01), Saito et al.
patent: 5076607 (1991-12-01), Woods et al.
patent: 5113764 (1992-05-01), Mandigo et al.
patent: 5131679 (1992-07-01), Novak et al.
patent: 5140906 (1992-08-01), Little, II
patent: 5145803 (1992-09-01), Daimer et al.
patent: 5157831 (1992-10-01), Wang et al.
patent: 5188990 (1993-02-01), Dumesnil et al.
patent: 5200574 (1993-04-01), Cunningham et al.
patent: 5243492 (1993-09-01), Marquit et al.
patent: 5404263 (1995-04-01), Graves et al.
Engineering drawing entitled "Initiator Subassembly," dated Feb. 6, 1990.
Engineering drawing entitled "Header, Glass Sealed Assembly," dated Dec. 8, 1976 by the Dept. of Navy, naval Sea Systems Command.
Engineering drawing entitled "Header Assy," dated Apr. 17, 1989.

Affiliated with

Also associated with

Rating

Process for fabricating a hermetic glass-to-metal seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for fabricating a hermetic glass-to-metal seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for fabricating a hermetic glass-to-metal seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-722396