CH362061A - Verfahren zum Herstellen von reinem Bornitrid - Google Patents
Verfahren zum Herstellen von reinem BornitridInfo
- Publication number
- CH362061A CH362061A CH362061DA CH362061A CH 362061 A CH362061 A CH 362061A CH 362061D A CH362061D A CH 362061DA CH 362061 A CH362061 A CH 362061A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- boron nitride
- pure boron
- pure
- nitride
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B19/00—Selenium; Tellurium; Compounds thereof
- C01B19/007—Tellurides or selenides of metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/064—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with boron
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/072—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with aluminium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/06—Hydrogen phosphides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/02—Boron; Borides
- C01B35/04—Metal borides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B41/00—Obtaining germanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/007—Preparing arsenides or antimonides, especially of the III-VI-compound type, e.g. aluminium or gallium arsenide
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/003—Coating on a liquid substrate
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/04—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt
- C30B11/08—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt every component of the crystal composition being added during the crystallisation
- C30B11/12—Vaporous components, e.g. vapour-liquid-solid-growth
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/02—Single-crystal growth by pulling from a melt, e.g. Czochralski method adding crystallising materials or reactants forming it in situ to the melt
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32018—Glow discharge
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
- Y10S117/901—Levitation, reduced gravity, microgravity, space
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
- Y10S117/917—Magnetic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Silicon Compounds (AREA)
- Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES39578A DE976899C (de) | 1954-06-13 | 1954-06-13 | Gasentladungsanlage zur Herstellung eines Stabes aus hochreinem Silicium |
| DES40843A DE1042539B (de) | 1954-06-13 | 1954-09-15 | Verfahren zum Herstellen ultrareiner Halbleiterkristalle |
| DES58066A DE1151782B (de) | 1954-06-13 | 1958-04-30 | Verfahren zum Herstellen hochgereinigter einkristalliner Halbleiterstaebe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH362061A true CH362061A (de) | 1962-05-31 |
Family
ID=27212571
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH362061D CH362061A (de) | 1954-06-13 | 1954-10-21 | Verfahren zum Herstellen von reinem Bornitrid |
| CH355220D CH355220A (de) | 1954-06-13 | 1954-10-21 | Verfahren zur Herstellung eines kristallisierten Halbleiterstoffes |
| CH7245559A CH376584A (de) | 1954-06-13 | 1959-04-23 | Verfahren zum Herstellen einkristalliner Halbleiterstäbe |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH355220D CH355220A (de) | 1954-06-13 | 1954-10-21 | Verfahren zur Herstellung eines kristallisierten Halbleiterstoffes |
| CH7245559A CH376584A (de) | 1954-06-13 | 1959-04-23 | Verfahren zum Herstellen einkristalliner Halbleiterstäbe |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US2992984A (de) |
| CH (3) | CH362061A (de) |
| DE (5) | DE1017795B (de) |
| FR (3) | FR1131422A (de) |
| GB (3) | GB795191A (de) |
| NL (1) | NL105537C (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0162137A3 (en) * | 1984-05-21 | 1987-05-13 | Toshiba Tungaloy Co. Ltd. | Method for preparing boron nitride |
Families Citing this family (58)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1061527B (de) * | 1953-02-14 | 1959-07-16 | Siemens Ag | Verfahren zum zonenweisen Umschmelzen von Staeben und anderen langgestreckten Werkstuecken |
| DE1017795B (de) * | 1954-05-25 | 1957-10-17 | Siemens Ag | Verfahren zur Herstellung reinster kristalliner Substanzen, vorzugsweise Halbleitersubstanzen |
| DE1141255B (de) * | 1958-03-05 | 1962-12-20 | Siemens Ag | Verfahren zum Herstellen hochgereinigter einkristalliner Halbleiterstaebe |
| GB878765A (en) * | 1956-11-05 | 1961-10-04 | Plessey Co Ltd | Improvements in and relating to processes for the manufacture of semiconductor materials |
| DE1109154B (de) * | 1957-03-12 | 1961-06-22 | Licentia Gmbh | Verfahren zur Gewinnung von borbromid- bzw. borjodidfreiem Siliciumbromid bzw. -jodid |
| BE567204A (de) * | 1957-04-30 | |||
| DE1114170B (de) * | 1957-07-03 | 1961-09-28 | Int Standard Electric Corp | Verfahren und Vorrichtung zur Herstellung von extrem reinem Halbleitermaterial |
| US3006734A (en) * | 1957-11-14 | 1961-10-31 | Plessey Co Ltd | Process for preparing pure silicon |
| DE1081869B (de) * | 1957-12-03 | 1960-05-19 | Siemens Ag | Verfahren zur Herstellung von Silicium-Einkristallen |
| DE1198321B (de) * | 1958-01-06 | 1965-08-12 | Int Standard Electric Corp | Verfahren zur Herstellung von Halbleitermaterial grosser Reinheit |
| DE1073460B (de) * | 1958-01-11 | 1960-01-21 | LICENTIA Patent-Verwaltungs-G.m.b.H., Frankfurt/M | Verfahren zum Reinigen von Silan oder chlorierten Silanen |
| US3116175A (en) * | 1958-01-27 | 1963-12-31 | Marvalaud Inc | Method for forming bicrystalline specimens |
| US3036892A (en) * | 1958-03-05 | 1962-05-29 | Siemens Ag | Production of hyper-pure monocrystal-line rods in continuous operation |
| DE1180346B (de) * | 1958-03-14 | 1964-10-29 | Gustav Weissenberg Dr H C Dr H | Verfahren zum Herstellen hochreiner Kristalle, insbesondere aus Halbleiterstoffen |
| US3098741A (en) * | 1958-04-03 | 1963-07-23 | Wacker Chemie Gmbh | Process for effecting crucibleless melting of materials and production of shaped bodies therefrom |
| DE1181669B (de) * | 1958-06-03 | 1964-11-19 | Wacker Chemie Gmbh | Verfahren zum Herstellen von festen Verbindungen oder Legierungen |
| BE582787A (de) * | 1958-09-20 | 1900-01-01 | ||
| DE1154796B (de) * | 1958-12-16 | 1963-09-26 | Western Electric Co | Verfahren zum Reinigen von Silicium- oder Germaniumverbindungen |
| DE1211592B (de) | 1959-04-20 | 1966-03-03 | Westinghouse Electric Corp | Verfahren zur Herstellung eng toleriert dotierter Siliciumstaebe |
| CH354427A (fr) * | 1959-06-05 | 1961-05-31 | Ind De Pierres Scient Hrand Dj | Procédé de fabrication d'un corps de révolution, notamment d'un disque en pierre synthétique et installation pour la mise en oeuvre de ce procédé |
| NL256017A (de) * | 1959-09-23 | 1900-01-01 | ||
| NL244298A (de) * | 1959-10-13 | |||
| DE1128412B (de) * | 1959-12-17 | 1962-04-26 | Metallgesellschaft Ag | Verfahren zur Herstellung von Reinstsilicium durch thermische Zersetzung von gasfoermigen Siliciumverbindungen |
| NL262949A (de) * | 1960-04-02 | 1900-01-01 | ||
| DE1211593B (de) * | 1960-04-27 | 1966-03-03 | Wacker Chemie Gmbh | Verfahren zur tiegelfreien Herstellung hochreiner, elektrisch halbleitender, kristalliner Verbindungen |
| NL265528A (de) * | 1960-06-02 | |||
| DE1190918B (de) * | 1960-06-24 | 1965-04-15 | Wacker Chemie Gmbh | Verfahren zur gezielten Dotierung von stabfoermigen Koerpern waehrend des Zonenschmelzens |
| DE1216842B (de) * | 1960-09-30 | 1966-05-18 | Karl Ernst Hoffmann | Verfahren zur Herstellung von reinstem Silicium und Germanium |
| DE1227424B (de) * | 1961-03-01 | 1966-10-27 | Philips Nv | Verfahren und Vorrichtung zum Zonenschmelzen eines aus einer Metallverbindung bestehenden stabfoermigen Koerpers |
| DE1245332B (de) * | 1961-09-14 | 1967-07-27 | Gen Electric | Vorrichtung zur kontinuierlichen Herstellung von Einkristallen durch Abscheidung aus der Dampfphase |
| US3267529A (en) * | 1961-10-04 | 1966-08-23 | Heraeus Gmbh W C | Apparatus for melting metals under high vacuum |
| US3239368A (en) * | 1962-04-26 | 1966-03-08 | Nra Inc | Method of preparing thin films on substrates by an electrical discharge |
| US3303115A (en) * | 1962-05-31 | 1967-02-07 | Corning Glass Works | Methods for forming materials of high purity by fusion |
| US3245761A (en) * | 1962-10-11 | 1966-04-12 | Norton Co | Apparatus for making magnesium oxide crystals |
| DE1258397B (de) * | 1962-11-15 | 1968-01-11 | Siemens Ag | Verfahren zum Herstellen einer Halbleiteranordnung durch einkristallines Aufwachsen halbleitender Schichten mittels Transportreaktion |
| DE1444530B2 (de) * | 1962-12-12 | 1970-10-01 | Siemens AG, 1000 Berlin u. 8000 München | Verfahren und Vorrichtung zum Herstellen von stabförmigem, einkristallinen Halbleitermaterial |
| DE1243641B (de) * | 1962-12-12 | 1967-07-06 | Siemens Ag | Verfahren zur Herstellung von Halbleiterstaeben durch Ziehen aus der Schmelze |
| US3259468A (en) * | 1963-05-02 | 1966-07-05 | Monsanto Co | Slim crystalline rod pullers with centering means |
| GB1108741A (en) * | 1963-09-19 | 1968-04-03 | Ass Elect Ind | Improvements in and relating to epitaxial layers of semiconductor materials |
| DE1244733B (de) * | 1963-11-05 | 1967-07-20 | Siemens Ag | Vorrichtung zum Aufwachsen einkristalliner Halbleitermaterialschichten auf einkristallinen Grundkoerpern |
| DE1248014B (de) * | 1963-12-05 | 1967-08-24 | Siemens Ag | Verfahren zum Abscheiden von Halbleitermaterial unter Anwendung einer elektrischen Glimmentladung |
| BE676042A (de) * | 1965-02-10 | 1966-06-16 | ||
| US3293002A (en) * | 1965-10-19 | 1966-12-20 | Siemens Ag | Process for producing tape-shaped semiconductor bodies |
| FR1492063A (fr) * | 1966-04-05 | 1967-08-18 | Commissariat Energie Atomique | Perfectionnement aux fours électriques haute fréquence pour la fabrication en continu de réfractaires électrofondus |
| GB1227331A (de) * | 1967-04-14 | 1971-04-07 | ||
| US3494742A (en) * | 1968-12-23 | 1970-02-10 | Western Electric Co | Apparatus for float zone melting fusible material |
| CH540995A (de) * | 1971-03-22 | 1973-08-31 | Bbc Brown Boveri & Cie | Verfahren zum Aufbringen einer Schutzschicht auf einen Körper |
| US4068025A (en) * | 1971-03-22 | 1978-01-10 | Brown, Boveri & Company Limited | Method of applying a protective coating to a body |
| US4087313A (en) * | 1975-11-28 | 1978-05-02 | Joseph Beril Milstein | Process and apparatus for preparation of single crystals and textured polycrystals |
| DE2636348A1 (de) * | 1976-08-12 | 1978-02-16 | Wacker Chemitronic | Verfahren zur herstellung von reinem, elementarem halbleitermaterial |
| US4102764A (en) * | 1976-12-29 | 1978-07-25 | Westinghouse Electric Corp. | High purity silicon production by arc heater reduction of silicon intermediates |
| US4102767A (en) * | 1977-04-14 | 1978-07-25 | Westinghouse Electric Corp. | Arc heater method for the production of single crystal silicon |
| US4102766A (en) * | 1977-04-14 | 1978-07-25 | Westinghouse Electric Corp. | Process for doping high purity silicon in an arc heater |
| FR2403646A1 (fr) | 1977-09-16 | 1979-04-13 | Anvar | Procede de realisation d'un depot de compose semi-conducteur d'elements iii et v |
| JPS63222011A (ja) * | 1987-03-11 | 1988-09-14 | Mitsubishi Metal Corp | 多結晶シリコンの製造方法 |
| EP3539924A1 (de) * | 2018-03-14 | 2019-09-18 | ETH Zurich | Neuartige vinylphosphine und daraus erhältliche photoinitiatoren |
| CN111574909B (zh) * | 2020-04-23 | 2021-11-02 | 华北电力大学(保定) | 一种抗击穿型环氧树脂-氮化硼复合材料的制备方法 |
| CN112827319B (zh) * | 2020-12-23 | 2023-03-03 | 四川天采科技有限责任公司 | 一种含低浓度硅烷与碳二以上轻烃类的氯基SiC-CVD外延尾气全温程变压吸附提氢与循环再利用方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468175A (en) * | 1949-04-26 | Apparatus for electrochemical | ||
| US2631356A (en) * | 1953-03-17 | Method of making p-n junctions | ||
| US2768074A (en) * | 1949-09-24 | 1956-10-23 | Nat Res Corp | Method of producing metals by decomposition of halides |
| DE863997C (de) * | 1951-03-02 | 1953-01-22 | Degussa | Abscheidung von Elementen mit metallaehnlichem Charakter aus ihren Verbindungen |
| NL89230C (de) * | 1952-12-17 | 1900-01-01 | ||
| NL246576A (de) * | 1954-05-18 | 1900-01-01 | ||
| DE1017795B (de) * | 1954-05-25 | 1957-10-17 | Siemens Ag | Verfahren zur Herstellung reinster kristalliner Substanzen, vorzugsweise Halbleitersubstanzen |
| US2892739A (en) * | 1954-10-01 | 1959-06-30 | Honeywell Regulator Co | Crystal growing procedure |
-
1954
- 1954-05-25 DE DES39318A patent/DE1017795B/de active Pending
- 1954-06-13 DE DES39578A patent/DE976899C/de not_active Expired
- 1954-09-15 DE DES40843A patent/DE1042539B/de active Pending
- 1954-10-21 CH CH362061D patent/CH362061A/de unknown
- 1954-10-21 CH CH355220D patent/CH355220A/de unknown
- 1954-10-26 FR FR1131422D patent/FR1131422A/fr not_active Expired
- 1954-10-26 GB GB30885/54A patent/GB795191A/en not_active Expired
- 1954-10-26 NL NL191838A patent/NL105537C/xx active
-
1955
- 1955-05-20 US US509980A patent/US2992984A/en not_active Expired - Lifetime
- 1955-05-23 GB GB14816/55A patent/GB812818A/en not_active Expired
- 1955-05-25 FR FR1125277D patent/FR1125277A/fr not_active Expired
- 1955-06-06 DE DES44220A patent/DE1023889B/de active Pending
-
1958
- 1958-04-30 DE DES58066A patent/DE1151782B/de active Pending
-
1959
- 1959-04-06 GB GB11585/59A patent/GB890230A/en not_active Expired
- 1959-04-16 US US806882A patent/US2999737A/en not_active Expired - Lifetime
- 1959-04-17 FR FR792433A patent/FR1220648A/fr not_active Expired
- 1959-04-23 CH CH7245559A patent/CH376584A/de unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0162137A3 (en) * | 1984-05-21 | 1987-05-13 | Toshiba Tungaloy Co. Ltd. | Method for preparing boron nitride |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1220648A (fr) | 1960-05-25 |
| CH376584A (de) | 1964-04-15 |
| DE976899C (de) | 1964-07-23 |
| GB795191A (en) | 1958-05-21 |
| DE1042539B (de) | 1958-11-06 |
| CH355220A (de) | 1961-06-30 |
| GB812818A (en) | 1959-04-29 |
| FR1131422A (fr) | 1957-02-21 |
| DE1017795B (de) | 1957-10-17 |
| NL105537C (de) | 1963-08-15 |
| DE1151782B (de) | 1963-07-25 |
| FR1125277A (fr) | 1956-10-29 |
| DE1023889B (de) | 1958-02-06 |
| US2999737A (en) | 1961-09-12 |
| GB890230A (en) | 1962-02-28 |
| US2992984A (en) | 1961-07-18 |
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