JPS5551736A - Low melting point sealing composition - Google Patents

Low melting point sealing composition

Info

Publication number
JPS5551736A
JPS5551736A JP12634378A JP12634378A JPS5551736A JP S5551736 A JPS5551736 A JP S5551736A JP 12634378 A JP12634378 A JP 12634378A JP 12634378 A JP12634378 A JP 12634378A JP S5551736 A JPS5551736 A JP S5551736A
Authority
JP
Japan
Prior art keywords
powder
willemite
boric acid
sealing
becomes
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.)
Granted
Application number
JP12634378A
Other languages
Japanese (ja)
Other versions
JPS5945620B2 (en
Inventor
Ichiro Matsuura
Fumio Yamaguchi
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.)
Nippon Electric Glass Co Ltd
Original Assignee
Nippon Electric Glass 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 Nippon Electric Glass Co Ltd filed Critical Nippon Electric Glass Co Ltd
Priority to JP12634378A priority Critical patent/JPS5945620B2/en
Publication of JPS5551736A publication Critical patent/JPS5551736A/en
Publication of JPS5945620B2 publication Critical patent/JPS5945620B2/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
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/24—Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders
    • C03C8/245—Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders containing more than 50% lead oxide, by weight

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE: To provide the title compsn. suitable for use in sealing IC package esp. using alumina by mixing amorphous lead-boric acid type low m.p. glass powder, willemite powder and lead titanate powder in a specified wt. ratio.
CONSTITUTION: Minium, boric acid, zinc white, zinc fluoride, etc. are mixed, melted, and finely pulverized to form amorphous lead-boric acid type low m.p. glass powder with an yield point of 350°C or below. Zinc wite and fluorescent pebble powder are blended so that the molar ratio of ZnO:SiO2 becomes 2:1, and the blend is calcined and finely pulverized to form willemite powder. Titanium oxide and litharge are blended so that the molar ratio of TiO2:PbO becomes 1:1, and the blend is calcined and finely pulverized to form lead titanate powder. 45W 80% of the glass powder, 35W1% of the willemite powder and 50W1% of the willemite powder and the lead titanate powder becomes 55W20%, thus obtaining a low m.p. sealing compsn. having a sealing temp. of 450°C or below.
COPYRIGHT: (C)1980,JPO&Japio
JP12634378A 1978-10-13 1978-10-13 Low melting point sealing composition Expired JPS5945620B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12634378A JPS5945620B2 (en) 1978-10-13 1978-10-13 Low melting point sealing composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12634378A JPS5945620B2 (en) 1978-10-13 1978-10-13 Low melting point sealing composition

Publications (2)

Publication Number Publication Date
JPS5551736A true JPS5551736A (en) 1980-04-15
JPS5945620B2 JPS5945620B2 (en) 1984-11-07

Family

ID=14932806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12634378A Expired JPS5945620B2 (en) 1978-10-13 1978-10-13 Low melting point sealing composition

Country Status (1)

Country Link
JP (1) JPS5945620B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149710U (en) * 1987-03-25 1988-10-03
JPH02229738A (en) * 1989-03-01 1990-09-12 Nippon Electric Glass Co Ltd Sealing composition having low melting point
US5233189A (en) * 1991-03-04 1993-08-03 Hermann Wollnik Time-of-flight mass spectrometer as the second stage for a tandem mass spectrometer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01170393A (en) * 1987-12-21 1989-07-05 Matsushita Electric Ind Co Ltd Electric cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149710U (en) * 1987-03-25 1988-10-03
JPH02229738A (en) * 1989-03-01 1990-09-12 Nippon Electric Glass Co Ltd Sealing composition having low melting point
US5233189A (en) * 1991-03-04 1993-08-03 Hermann Wollnik Time-of-flight mass spectrometer as the second stage for a tandem mass spectrometer

Also Published As

Publication number Publication date
JPS5945620B2 (en) 1984-11-07

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