GB1421050A - Glass-to-tantalum seal - Google Patents

Glass-to-tantalum seal

Info

Publication number
GB1421050A
GB1421050A GB4860673A GB4860673A GB1421050A GB 1421050 A GB1421050 A GB 1421050A GB 4860673 A GB4860673 A GB 4860673A GB 4860673 A GB4860673 A GB 4860673A GB 1421050 A GB1421050 A GB 1421050A
Authority
GB
United Kingdom
Prior art keywords
glass
cup
metal
tantalum
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4860673A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB4860673A priority Critical patent/GB1421050A/en
Priority to DE19742423908 priority patent/DE2423908A1/en
Priority to IT2338274A priority patent/IT1012978B/en
Priority to FR7419066A priority patent/FR2248244B1/fr
Priority to JP7689374A priority patent/JPS5088110A/ja
Publication of GB1421050A publication Critical patent/GB1421050A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/08—Housing; Encapsulation
    • H01G9/10—Sealing, e.g. of lead-in wires

Abstract

1421050 Glass to metal seals PLESSEY CO Ltd 3 May 1974 [18 Oct 1973] 48606/73 Heading C1M In the manufacture of a metal-glass-metal seal, the glass having a linear coefficient of thermal expansion in the range 4À7 Î 10<SP>-6</SP> to 5À1 Î 10<SP>-6</SP> per degree Centigrade and at least one of the metals comprising tantalum, a metal cup 2 with a central hole 3 in a recess 4 has a metal wire 1 extending therethrough with a glass bead 14 thereover, the glass and metal parts being heated to form the seal in an inert atmosphere to a temperature in the range 900‹ to 1400‹ C. The cup 2 is supported on a carbon block 6 shaped at 7 and 8 to receive the cup 2 and wire 1 respectively. Tantalum or an alloy of tantalum with 2% tungsten may be used for both wire and cup or the cup 2 may be of a nickel-cobalt-iron alloy. Glasses suggested are a borosilicate or an alkali barium silicate glass. To form an electrotylic capacitor, the edge 5 of the cup 2 is soldered to an open can (11) which may also be of Ta or Ta alloy or of silver for sealing to the nickelcobalt-iron alloy.
GB4860673A 1973-10-18 1973-10-18 Glass-to-tantalum seal Expired GB1421050A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB4860673A GB1421050A (en) 1973-10-18 1973-10-18 Glass-to-tantalum seal
DE19742423908 DE2423908A1 (en) 1973-10-18 1974-05-16 PROCESS FOR PRODUCING A GLASS-METAL JOINT
IT2338274A IT1012978B (en) 1973-10-18 1974-05-30 SEAL BETWEEN GLASS AND TANTALUS AND METHOD OF ITS PREPARATION
FR7419066A FR2248244B1 (en) 1973-10-18 1974-05-31
JP7689374A JPS5088110A (en) 1973-10-18 1974-07-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4860673A GB1421050A (en) 1973-10-18 1973-10-18 Glass-to-tantalum seal

Publications (1)

Publication Number Publication Date
GB1421050A true GB1421050A (en) 1976-01-14

Family

ID=10449230

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4860673A Expired GB1421050A (en) 1973-10-18 1973-10-18 Glass-to-tantalum seal

Country Status (5)

Country Link
JP (1) JPS5088110A (en)
DE (1) DE2423908A1 (en)
FR (1) FR2248244B1 (en)
GB (1) GB1421050A (en)
IT (1) IT1012978B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112136194A (en) * 2018-06-21 2020-12-25 阿维科斯公司 Solid electrolyte capacitor having stable electrical properties at high temperatures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804396A (en) * 1985-05-10 1989-02-14 Emerson Electric Co. Method for manufacturing hermetic terminal assemblies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624460A (en) * 1969-12-29 1971-11-30 Gen Electric Electrolytic capacitor employing glass-to-metal hermetic seal
US3697823A (en) * 1971-11-03 1972-10-10 Gen Electric Metal-to-glass-to-metal hermetic seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112136194A (en) * 2018-06-21 2020-12-25 阿维科斯公司 Solid electrolyte capacitor having stable electrical properties at high temperatures
CN112136194B (en) * 2018-06-21 2022-05-31 京瓷Avx元器件公司 Solid electrolyte capacitor having stable electrical properties at high temperatures

Also Published As

Publication number Publication date
DE2423908A1 (en) 1975-04-30
FR2248244B1 (en) 1980-03-28
JPS5088110A (en) 1975-07-15
IT1012978B (en) 1977-03-10
FR2248244A1 (en) 1975-05-16

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920503