FR2109804A5 - Alumina ceramic insulators - contg heavy metal oxides and prepd by sinter-sealing shaped powder mixt - Google Patents

Alumina ceramic insulators - contg heavy metal oxides and prepd by sinter-sealing shaped powder mixt

Info

Publication number
FR2109804A5
FR2109804A5 FR7134191A FR7134191A FR2109804A5 FR 2109804 A5 FR2109804 A5 FR 2109804A5 FR 7134191 A FR7134191 A FR 7134191A FR 7134191 A FR7134191 A FR 7134191A FR 2109804 A5 FR2109804 A5 FR 2109804A5
Authority
FR
France
Prior art keywords
sinter
mixt
prepd
contg
heavy metal
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
FR7134191A
Other languages
French (fr)
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.)
Steatit Magnesia AG
Original Assignee
Steatit Magnesia AG
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 Steatit Magnesia AG filed Critical Steatit Magnesia AG
Application granted granted Critical
Publication of FR2109804A5 publication Critical patent/FR2109804A5/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4803—Insulating or insulated parts, e.g. mountings, containers, diamond heatsinks
    • H01L21/4807—Ceramic parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/12—Mountings, e.g. non-detachable insulating substrates
    • H01L23/14—Mountings, e.g. non-detachable insulating substrates characterised by the material or its electrical properties
    • H01L23/15—Ceramic or glass substrates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Ceramic Products (AREA)

Abstract

Powder-mixt. of pure Al2O3 and 3-8 wt.% mixt. of 3 or more oxides of heavy metals with atomic nos. 22-29 (pref. 24-27) are shaped and then sinter-sealed at 1270-1400 esp. 1300-1350 degrees C, to form high-grade Al2O3 ceramics, useful as insulators, pref. as lids or base plates for integrated circuits with semi-conductors and as supports for electrical conductor strips (where they also act as black body radiators), also as machinery components requiring high hardness. Materials are impermeable to visible and ultraviolet light and have mechanical strength and heat-conductivity exceeding those of high grade Al2O3 ceramics of Standard Sheet DIN 40 685 for Gp. 708.
FR7134191A 1970-12-04 1971-09-23 Alumina ceramic insulators - contg heavy metal oxides and prepd by sinter-sealing shaped powder mixt Expired FR2109804A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702059679 DE2059679A1 (en) 1970-12-04 1970-12-04 High quality, densely sintered aluminum oxide ceramic

Publications (1)

Publication Number Publication Date
FR2109804A5 true FR2109804A5 (en) 1972-05-26

Family

ID=5789970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7134191A Expired FR2109804A5 (en) 1970-12-04 1971-09-23 Alumina ceramic insulators - contg heavy metal oxides and prepd by sinter-sealing shaped powder mixt

Country Status (4)

Country Link
CH (1) CH563319A5 (en)
DE (1) DE2059679A1 (en)
FR (1) FR2109804A5 (en)
SE (1) SE374096B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476636A1 (en) * 1980-02-26 1981-08-28 Euroceral Translucent alumina tube for sodium vapour lamps - with opaque, electrically conducting regions to improve service life
EP0256182A1 (en) * 1985-02-19 1988-02-24 Mitsui Mining Company, Limited Alumina-base abrasion resistant material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727364A1 (en) * 1977-06-16 1979-01-04 Siemens Ag METHOD FOR MANUFACTURING CERAMIC SUBSTRATES
DE4124630A1 (en) * 1991-07-25 1993-02-11 Starck H C Gmbh Co Kg COLORED COROD, METHOD FOR THE PRODUCTION AND USE THEREOF

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476636A1 (en) * 1980-02-26 1981-08-28 Euroceral Translucent alumina tube for sodium vapour lamps - with opaque, electrically conducting regions to improve service life
EP0256182A1 (en) * 1985-02-19 1988-02-24 Mitsui Mining Company, Limited Alumina-base abrasion resistant material

Also Published As

Publication number Publication date
CH563319A5 (en) 1975-06-30
SE374096B (en) 1975-02-24
DE2059679A1 (en) 1972-06-15

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Legal Events

Date Code Title Description
ST Notification of lapse