CA1328728C - Alumine adaptee pour servir d'enrobage de cellule de memoire a semiconducteur et sa methode de preparation - Google Patents

Alumine adaptee pour servir d'enrobage de cellule de memoire a semiconducteur et sa methode de preparation

Info

Publication number
CA1328728C
CA1328728C CA000492910A CA492910A CA1328728C CA 1328728 C CA1328728 C CA 1328728C CA 000492910 A CA000492910 A CA 000492910A CA 492910 A CA492910 A CA 492910A CA 1328728 C CA1328728 C CA 1328728C
Authority
CA
Canada
Prior art keywords
alumina
solution
alumina hydrate
sodium aluminate
aluminate solution
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 - Fee Related
Application number
CA000492910A
Other languages
English (en)
Inventor
Akira Sakamoto
Koutaro Hirayanagi
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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
Priority to JP59099695A priority Critical patent/JPS60246220A/ja
Priority to PCT/JP1985/000273 priority patent/WO1985005349A1/fr
Priority to AU42984/85A priority patent/AU570562B2/en
Priority to DE19853590218 priority patent/DE3590218T1/de
Application filed by Showa Denko KK filed Critical Showa Denko KK
Priority to CA000492910A priority patent/CA1328728C/fr
Application granted granted Critical
Publication of CA1328728C publication Critical patent/CA1328728C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/144—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C01F7/473—Removal of organic compounds, e.g. sodium oxalate
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W76/00—Containers; Fillings or auxiliary members therefor; Seals
    • H10W76/10—Containers or parts thereof
    • H10W76/17—Containers or parts thereof characterised by their materials
    • H10W76/18—Insulating materials, e.g. resins, glasses or ceramics
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W99/00—Subject matter not provided for in other groups of this subclass
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/44—Alpha, beta or gamma radiation related properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Inorganic Insulating Materials (AREA)
CA000492910A 1984-05-19 1985-10-11 Alumine adaptee pour servir d'enrobage de cellule de memoire a semiconducteur et sa methode de preparation Expired - Fee Related CA1328728C (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP59099695A JPS60246220A (ja) 1984-05-19 1984-05-19 α線放射量の低いアルミナ水和物またはアルミナの製造方法
PCT/JP1985/000273 WO1985005349A1 (fr) 1984-05-19 1985-05-20 Alumine pour boitiers de cellules de memoire a semi-conducteurs et son procede de production
AU42984/85A AU570562B2 (en) 1984-05-19 1985-05-20 Alumina process for semiconductor memory cell package
DE19853590218 DE3590218T1 (de) 1984-05-19 1985-05-20 Aluminiumoxid, das für eine Verwendung als Halbleiterspeicherzellengehäuse geeignet ist, und Verfahren zu seiner Herstellung
CA000492910A CA1328728C (fr) 1984-05-19 1985-10-11 Alumine adaptee pour servir d'enrobage de cellule de memoire a semiconducteur et sa methode de preparation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59099695A JPS60246220A (ja) 1984-05-19 1984-05-19 α線放射量の低いアルミナ水和物またはアルミナの製造方法
CA000492910A CA1328728C (fr) 1984-05-19 1985-10-11 Alumine adaptee pour servir d'enrobage de cellule de memoire a semiconducteur et sa methode de preparation

Publications (1)

Publication Number Publication Date
CA1328728C true CA1328728C (fr) 1994-04-26

Family

ID=25670808

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000492910A Expired - Fee Related CA1328728C (fr) 1984-05-19 1985-10-11 Alumine adaptee pour servir d'enrobage de cellule de memoire a semiconducteur et sa methode de preparation

Country Status (5)

Country Link
JP (1) JPS60246220A (fr)
AU (1) AU570562B2 (fr)
CA (1) CA1328728C (fr)
DE (1) DE3590218T1 (fr)
WO (1) WO1985005349A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8815205B2 (en) 2010-04-15 2014-08-26 Nippon Steel & Sumikin Materials Co., Ltd. Method for producing spherical alumina powder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111874927A (zh) * 2020-06-22 2020-11-03 河南华慧有色工程设计有限公司 一种碳分法氧化铝节能减排生产方法
CN115947361A (zh) * 2022-11-21 2023-04-11 江苏联瑞新材料股份有限公司 一种低放射性氧化铝粉及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745601A (en) * 1953-11-19 1956-02-29 Kaiser Aluminium Chem Corp Improvements in or relating to process for treating caustic aluminate liquor
FR2317226A1 (fr) * 1975-07-07 1977-02-04 Alcan Res & Dev Perfectionnements a la production d'alumine
JPS5951488B2 (ja) * 1977-05-09 1984-12-14 昭和電工株式会社 有機物の除去方法
JPS53137869A (en) * 1977-05-09 1978-12-01 Showa Denko Kk Method of removing organic matters
JPS54110199A (en) * 1978-02-17 1979-08-29 Sumitomo Aluminium Smelting Co Method of removing organics from circulating aluminic acid alkali solution
JPS5846450B2 (ja) * 1978-07-11 1983-10-17 昭和軽金属株式会社 バイヤ−循環液の処理方法
CH644332A5 (de) * 1978-11-07 1984-07-31 Alusuisse Verfahren zur herstellung von grobem aluminiumhydroxid.
JPS573715A (en) * 1980-06-09 1982-01-09 Showa Alum Ind Kk Preparation of alumina having extremely low content of radioactive element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8815205B2 (en) 2010-04-15 2014-08-26 Nippon Steel & Sumikin Materials Co., Ltd. Method for producing spherical alumina powder

Also Published As

Publication number Publication date
AU570562B2 (en) 1988-03-17
AU4298485A (en) 1985-12-13
DE3590218T1 (de) 1986-07-17
WO1985005349A1 (fr) 1985-12-05
JPS60246220A (ja) 1985-12-05

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