CH351342A - Procédé d'établissement d'une liaison entre un conducteur métallique et un élément semi-conducteur - Google Patents

Procédé d'établissement d'une liaison entre un conducteur métallique et un élément semi-conducteur

Info

Publication number
CH351342A
CH351342A CH351342DA CH351342A CH 351342 A CH351342 A CH 351342A CH 351342D A CH351342D A CH 351342DA CH 351342 A CH351342 A CH 351342A
Authority
CH
Switzerland
Prior art keywords
establishing
connection
semiconductor element
metallic conductor
conductor
Prior art date
Application number
Other languages
English (en)
French (fr)
Inventor
Anderson Orson Lamar
Christensen Howard
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of CH351342A publication Critical patent/CH351342A/fr

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10PGENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P95/00Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10PGENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P95/00Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
    • H10P95/50Alloying conductive materials with semiconductor bodies
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W70/00Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/60Insulating or insulated package substrates; Interposers; Redistribution layers
    • H10W70/67Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their insulating layers or insulating parts
    • H10W70/69Insulating materials thereof
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/071Connecting or disconnecting
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W76/00Containers; Fillings or auxiliary members therefor; Seals
    • H10W76/10Containers or parts thereof
    • H10W76/17Containers or parts thereof characterised by their materials
    • H10W76/18Insulating materials, e.g. resins, glasses or ceramics
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W76/00Containers; Fillings or auxiliary members therefor; Seals
    • H10W76/60Seals
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W99/00Subject matter not provided for in other groups of this subclass
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/071Connecting or disconnecting
    • H10W72/0711Apparatus therefor
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/071Connecting or disconnecting
    • H10W72/0711Apparatus therefor
    • H10W72/07118Means for cleaning, e.g. brushes
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/071Connecting or disconnecting
    • H10W72/075Connecting or disconnecting of bond wires
    • H10W72/07531Techniques
    • H10W72/07532Compression bonding, e.g. thermocompression bonding
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/521Structures or relative sizes of bond wires
    • H10W72/522Multilayered bond wires, e.g. having a coating concentric around a core
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/531Shapes of wire connectors
    • H10W72/536Shapes of wire connectors the connected ends being ball-shaped
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/531Shapes of wire connectors
    • H10W72/5363Shapes of wire connectors the connected ends being wedge-shaped
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/541Dispositions of bond wires
    • H10W72/5449Dispositions of bond wires not being orthogonal to a side surface of the chip, e.g. fan-out arrangements
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/551Materials of bond wires
    • H10W72/552Materials of bond wires comprising metals or metalloids, e.g. silver
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/551Materials of bond wires
    • H10W72/552Materials of bond wires comprising metals or metalloids, e.g. silver
    • H10W72/5522Materials of bond wires comprising metals or metalloids, e.g. silver comprising gold [Au]
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/551Materials of bond wires
    • H10W72/552Materials of bond wires comprising metals or metalloids, e.g. silver
    • H10W72/5524Materials of bond wires comprising metals or metalloids, e.g. silver comprising aluminium [Al]
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/551Materials of bond wires
    • H10W72/552Materials of bond wires comprising metals or metalloids, e.g. silver
    • H10W72/5525Materials of bond wires comprising metals or metalloids, e.g. silver comprising copper [Cu]
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/551Materials of bond wires
    • H10W72/555Materials of bond wires of outermost layers of multilayered bond wires, e.g. material of a coating
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/50Bond wires
    • H10W72/59Bond pads specially adapted therefor
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/90Bond pads, in general
    • H10W72/931Shapes of bond pads
    • H10W72/932Plan-view shape, i.e. in top view
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00Interconnections or connectors in packages
    • H10W72/90Bond pads, in general
    • H10W72/951Materials of bond pads
    • H10W72/952Materials of bond pads comprising metals or metalloids, e.g. PbSn, Ag or Cu
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S228/00Metal fusion bonding
    • Y10S228/903Metal to nonmetal
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49169Assembling electrical component directly to terminal or elongated conductor
CH351342D 1956-10-31 1957-10-31 Procédé d'établissement d'une liaison entre un conducteur métallique et un élément semi-conducteur CH351342A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US619639A US3006067A (en) 1956-10-31 1956-10-31 Thermo-compression bonding of metal to semiconductors, and the like

Publications (1)

Publication Number Publication Date
CH351342A true CH351342A (fr) 1961-01-15

Family

ID=24482720

Family Applications (1)

Application Number Title Priority Date Filing Date
CH351342D CH351342A (fr) 1956-10-31 1957-10-31 Procédé d'établissement d'une liaison entre un conducteur métallique et un élément semi-conducteur

Country Status (7)

Country Link
US (1) US3006067A (enExample)
BE (1) BE559732A (enExample)
CH (1) CH351342A (enExample)
DE (1) DE1127000C2 (enExample)
FR (1) FR1179416A (enExample)
GB (2) GB881832A (enExample)
NL (2) NL113327C (enExample)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131460A (en) * 1959-11-09 1964-05-05 Corning Glass Works Method of bonding a crystal to a delay line
US3131459A (en) * 1959-11-09 1964-05-05 Corning Glass Works Method of bonding absorbing material to a delay line
US3136050A (en) * 1959-11-17 1964-06-09 Texas Instruments Inc Container closure method
US3179785A (en) * 1960-09-20 1965-04-20 Hughes Aircraft Co Apparatus for thermo-compression bonding
US3125803A (en) * 1960-10-24 1964-03-24 Terminals
NL270517A (enExample) * 1960-11-16
NL275554A (enExample) * 1961-04-19 1900-01-01
DE1172378B (de) * 1961-07-14 1964-06-18 Siemens Ag Verfahren zur Herstellung einer elektrisch unsymmetrisch leitenden Halbleiteranordnung
NL122607C (enExample) * 1961-07-26 1900-01-01
NL282318A (enExample) * 1961-08-30 1900-01-01
NL283249A (enExample) * 1961-09-19 1900-01-01
DE1251871B (enExample) * 1962-02-06 1900-01-01
NL292051A (enExample) * 1962-04-27
US3217401A (en) * 1962-06-08 1965-11-16 Transitron Electronic Corp Method of attaching metallic heads to silicon layers of semiconductor devices
US3271625A (en) * 1962-08-01 1966-09-06 Signetics Corp Electronic package assembly
US3304595A (en) * 1962-11-26 1967-02-21 Nippon Electric Co Method of making a conductive connection to a semiconductor device electrode
US3356914A (en) * 1963-05-03 1967-12-05 Westinghouse Electric Corp Integrated semiconductor rectifier assembly
US3296692A (en) * 1963-09-13 1967-01-10 Bell Telephone Labor Inc Thermocompression wire attachments to quartz crystals
US3310858A (en) * 1963-12-12 1967-03-28 Bell Telephone Labor Inc Semiconductor diode and method of making
US3370207A (en) * 1964-02-24 1968-02-20 Gen Electric Multilayer contact system for semiconductor devices including gold and copper layers
US3286340A (en) * 1964-02-28 1966-11-22 Philco Corp Fabrication of semiconductor units
GB1106163A (en) * 1964-03-02 1968-03-13 Post Office Improvements in or relating to the bonding of metals to semiconductor, metallic or non-metallic surfaces
DE1282190B (de) * 1964-03-12 1968-11-07 Kabusihiki Kaisha Hitachi Seis Verfahren zum Herstellen von Transistoren
DE1514304A1 (de) * 1964-04-03 1969-05-14 Philco Ford Corp Halbleiteranordnung und Herstellungsverfahren hierfuer
US3362064A (en) * 1964-05-08 1968-01-09 Space Sciences Inc Measuring device
US3380155A (en) * 1965-05-12 1968-04-30 Sprague Electric Co Production of contact pads for semiconductors
US3373481A (en) * 1965-06-22 1968-03-19 Sperry Rand Corp Method of electrically interconnecting conductors
US3442003A (en) * 1965-07-26 1969-05-06 Teledyne Inc Method for interconnecting thin films
US3461542A (en) * 1966-01-06 1969-08-19 Western Electric Co Bonding leads to quartz crystals
US3523222A (en) * 1966-09-15 1970-08-04 Texas Instruments Inc Semiconductive contacts
US3465421A (en) * 1966-12-20 1969-09-09 American Standard Inc High temperature bonding to germanium
US3442007A (en) * 1966-12-29 1969-05-06 Kewanee Oil Co Process of attaching a collector grid to a photovoltaic cell
US3483610A (en) * 1967-06-08 1969-12-16 Bell Telephone Labor Inc Thermocompression bonding of foil leads
GB1256518A (enExample) * 1968-11-30 1971-12-08
US3623649A (en) * 1969-06-09 1971-11-30 Gen Motors Corp Wedge bonding tool for the attachment of semiconductor leads
US3641660A (en) * 1969-06-30 1972-02-15 Texas Instruments Inc The method of ball bonding with an automatic semiconductor bonding machine
US3754674A (en) * 1970-03-03 1973-08-28 Allis Chalmers Mfg Co Means for providing hermetic seals
US4402447A (en) * 1980-12-04 1983-09-06 The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration Joining lead wires to thin platinum alloy films
DE3104960A1 (de) * 1981-02-12 1982-08-26 W.C. Heraeus Gmbh, 6450 Hanau "feinstdraht"
US4441118A (en) * 1983-01-13 1984-04-03 Olin Corporation Composite copper nickel alloys with improved solderability shelf life
FR2555813B1 (fr) * 1983-09-28 1986-06-20 Hitachi Ltd Dispositif a semi-conducteurs et procede de fabrication d'un tel dispositif
GB2175009B (en) * 1985-03-27 1990-02-07 Mitsubishi Metal Corp Wire for bonding a semiconductor device and process for producing the same
GB2178761B (en) * 1985-03-29 1989-09-20 Mitsubishi Metal Corp Wire for bonding a semiconductor device
GB8818050D0 (en) * 1988-07-28 1988-09-01 Lilliwyte Sa Joining of ceramic components to metal components
US20020053734A1 (en) 1993-11-16 2002-05-09 Formfactor, Inc. Probe card assembly and kit, and methods of making same
US7073254B2 (en) 1993-11-16 2006-07-11 Formfactor, Inc. Method for mounting a plurality of spring contact elements
US5495667A (en) * 1994-11-07 1996-03-05 Micron Technology, Inc. Method for forming contact pins for semiconductor dice and interconnects
US5994152A (en) * 1996-02-21 1999-11-30 Formfactor, Inc. Fabricating interconnects and tips using sacrificial substrates
US8033838B2 (en) 1996-02-21 2011-10-11 Formfactor, Inc. Microelectronic contact structure
JP2001034187A (ja) * 1999-07-22 2001-02-09 Nec Corp 熱圧着装置および熱圧着方法
DE10333465B4 (de) * 2003-07-22 2008-07-24 Infineon Technologies Ag Elektronisches Bauteil mit Halbleiterchip, Verfahren zur Herstellung desselben sowie Verfahren zur Herstellung eines Halbleiterwafers mit Kontaktflecken
JP4710700B2 (ja) * 2005-05-09 2011-06-29 株式会社デンソー 半導体装置およびその製造方法
US8381965B2 (en) * 2010-07-22 2013-02-26 Taiwan Semiconductor Manufacturing Company, Ltd. Thermal compress bonding
US8104666B1 (en) 2010-09-01 2012-01-31 Taiwan Semiconductor Manufacturing Company, Ltd. Thermal compressive bonding with separate die-attach and reflow processes
US9485873B2 (en) 2013-03-15 2016-11-01 Lawrence Livermore National Security, Llc Depositing bulk or micro-scale electrodes
US20160380120A1 (en) 2015-06-26 2016-12-29 Akira Terao Metallization and stringing for back-contact solar cells

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564738A (en) * 1947-02-25 1951-08-21 Foerderung Forschung Gmbh Method of forming a vacuum-tight bond between ceramics and metals
US2671746A (en) * 1950-06-17 1954-03-09 Richard D Brew & Company Inc Bonding system
GB688866A (en) * 1950-10-19 1953-03-18 Gen Electric Co Ltd Improvements in or relating to crystal rectifiers
US2698548A (en) * 1950-10-31 1955-01-04 Gen Electric Co Ltd Method of pressure welding
BE517459A (enExample) * 1952-02-07
US2739369A (en) * 1952-03-28 1956-03-27 Metals & Controls Corp Method of making electrical contacts
BE523523A (enExample) * 1952-08-07
US2751808A (en) * 1953-05-04 1956-06-26 Remington Arms Co Inc Explosively driven stud having polished point
US2817607A (en) * 1953-08-24 1957-12-24 Rca Corp Method of making semi-conductor bodies
US2879587A (en) * 1954-07-23 1959-03-31 Gen Motors Corp Method for making composite stock
US2805370A (en) * 1956-04-26 1957-09-03 Bell Telephone Labor Inc Alloyed connections to semiconductors

Also Published As

Publication number Publication date
NL219101A (enExample) 1900-01-01
BE559732A (enExample) 1900-01-01
GB881832A (en) 1961-11-08
US3006067A (en) 1961-10-31
DE1127000C2 (de) 1974-04-11
NL113327C (enExample) 1900-01-01
GB881834A (en) 1961-11-08
FR1179416A (fr) 1959-05-25
DE1127000B (enExample) 1974-04-11

Similar Documents

Publication Publication Date Title
CH351342A (fr) Procédé d'établissement d'une liaison entre un conducteur métallique et un élément semi-conducteur
FR1210750A (fr) Procédé de dépôt électrolytique de cuivre et d'alliages de cuivre
CH391119A (fr) Procédé de fabrication d'un ensemble de conducteurs isolés les uns des autres et utilisation de cet ensemble
FR1248882A (fr) Procédé d'établissement d'un nouvel empaquetage réfrigérant
FR1176484A (fr) Connexion électrique et procédé pour l'établir
FR1154067A (fr) Joint et procédé d'assemblage
FR1177072A (fr) Matériel d'artillerie
FR1245973A (fr) Production d'uranium métallique
BE609883Q (fr) Structure d'accouplement pour connecteurs électriques
FR1187069A (fr) Procédé et dispositif électriques de mise à la terre perfectionnés
CH343000A (de) Band zum Isolieren und Befestigen von elektrischen Leitern
FR1123537A (fr) Procédé d'application de couches isolantes sur métaux
BE596274A (fr) Agencement permettant de contrôler l'état de potentiel d'un certain nombre de conducteurs
FR1208818A (fr) Agent d'apprêt et d'hydrofugation
FR1246549A (fr) Production d'halogénures de métaux
FR1238868A (fr) Perfectionnements à la construction d'appareillages électroniques
FR1221395A (fr) Diuranate d'ammonium
FR1314384A (fr) Procédé et matériel d'enregistrement électrostatique
FR1262261A (fr) Procédé de réglage de l'impédance d'un dipôle double et dipôle ainsi obtenu
BE613895A (fr) Production de tétrafluorures de dibore à partir d'un composé oxygéné du bore et de tétrafluorure de soufre
FR1179661A (fr) Perfectionnements apportés à la connexion d'un câble isolé
FR1200043A (fr) Procédé et dispositifs d'exploration radio-physiologique
FR1181346A (fr) Perfectionnements aux connecteurs électriques et aux procédés pour les fixer aux conducteurs
FR1260572A (fr) Préparation d'un composé tétracycline-urée et son application dans la récupération de la tétracycline
FR1281970A (fr) Méthode et appareillage de soudure à l'are