FR1048471A - Procédé de préparation de dispositifs utilisant des couches de transition entre semiconducteurs des types p et n - Google Patents

Procédé de préparation de dispositifs utilisant des couches de transition entre semiconducteurs des types p et n

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Publication number
FR1048471A
FR1048471A FR1048471DA FR1048471A FR 1048471 A FR1048471 A FR 1048471A FR 1048471D A FR1048471D A FR 1048471DA FR 1048471 A FR1048471 A FR 1048471A
Authority
FR
France
Prior art keywords
semiconductors
types
transition layers
preparing devices
preparing
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
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English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR1048471A publication Critical patent/FR1048471A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/70—Bipolar devices
    • H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
    • H01L29/73—Bipolar junction transistors
    • 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
    • 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
    • H01L21/18—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 the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • 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
    • H01L21/18—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 the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/22—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities
    • 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
    • H01L21/18—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 the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/22—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities
    • H01L21/228—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities using diffusion into or out of a solid from or into a liquid phase, e.g. alloy diffusion processes
    • 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
    • H01L21/18—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 the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/24—Alloying of impurity materials, e.g. doping materials, electrode materials, with a semiconductor body
    • 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
    • H01L21/18—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 the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
    • H01L27/08—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
    • H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table
    • H01L29/167—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table further characterised by the doping material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/36—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the concentration or distribution of impurities in the bulk material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/70—Bipolar devices
    • H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/484—Connecting portions
    • H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
    • H01L2224/732—Location after the connecting process
    • H01L2224/73251—Location after the connecting process on different surfaces
    • H01L2224/73265—Layer and wire connectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Electrodes Of Semiconductors (AREA)
  • Thyristors (AREA)
  • Photovoltaic Devices (AREA)
FR1048471D 1950-09-29 1951-09-14 Procédé de préparation de dispositifs utilisant des couches de transition entre semiconducteurs des types p et n Expired FR1048471A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US18749050A 1950-09-29 1950-09-29
US18747850A 1950-09-29 1950-09-29
US748845XA 1952-10-25 1952-10-25
US596943A US2994018A (en) 1950-09-29 1956-07-10 Asymmetrically conductive device and method of making the same

Publications (1)

Publication Number Publication Date
FR1048471A true FR1048471A (fr) 1953-12-22

Family

ID=27491158

Family Applications (4)

Application Number Title Priority Date Filing Date
FR1048471D Expired FR1048471A (fr) 1950-09-29 1951-09-14 Procédé de préparation de dispositifs utilisant des couches de transition entre semiconducteurs des types p et n
FR65388D Expired FR65388E (fr) 1950-09-29 1953-02-05 Procédé de préparation de dispositifs utilisant des couches de transition entre semiconducteurs des types p et n
FR65476D Expired FR65476E (fr) 1950-09-29 1953-10-22 Procédé de préparation de dispositifs utilisant des couches de transition entre semiconducteurs des types p et n
FR1192936D Expired FR1192936A (fr) 1950-09-29 1957-07-10 Dispositif conducteur dyssymétrique et procédé de fabrication

Family Applications After (3)

Application Number Title Priority Date Filing Date
FR65388D Expired FR65388E (fr) 1950-09-29 1953-02-05 Procédé de préparation de dispositifs utilisant des couches de transition entre semiconducteurs des types p et n
FR65476D Expired FR65476E (fr) 1950-09-29 1953-10-22 Procédé de préparation de dispositifs utilisant des couches de transition entre semiconducteurs des types p et n
FR1192936D Expired FR1192936A (fr) 1950-09-29 1957-07-10 Dispositif conducteur dyssymétrique et procédé de fabrication

Country Status (6)

Country Link
US (1) US2994018A (US08092553-20120110-C00004.png)
BE (2) BE523775A (US08092553-20120110-C00004.png)
DE (2) DE976348C (US08092553-20120110-C00004.png)
FR (4) FR1048471A (US08092553-20120110-C00004.png)
GB (3) GB728129A (US08092553-20120110-C00004.png)
NL (1) NL87573C (US08092553-20120110-C00004.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2762001A (en) * 1955-03-23 1956-09-04 Globe Union Inc Fused junction transistor assemblies
DE1063277B (de) * 1954-08-23 1959-08-13 Gen Electric Co Ltd Verfahren zur Herstellung eines Halbleiters mit Legierungselektroden
US2911706A (en) * 1953-12-09 1959-11-10 Philips Corp Method of making a semi-conductor device
DE977180C (de) * 1955-03-05 1965-06-24 Siemens Ag Verfahren zum elektrolytischen oertlich begrenzten Abtragen wie Bohren und Zerteilen halbleitenden kristallinen Materials

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL178757B (nl) * 1952-06-02 British Steel Corp Werkwijze en inrichting voor het continu produceren van een metaalstrook uit metaalpoeder.
US2742383A (en) * 1952-08-09 1956-04-17 Hughes Aircraft Co Germanium junction-type semiconductor devices
DE977264C (de) * 1953-03-25 1965-08-12 Siemens Ag Spannungsabhaengiger Halbleiterkondensator
US2928761A (en) * 1954-07-01 1960-03-15 Siemens Ag Methods of producing junction-type semi-conductor devices
US2825667A (en) * 1955-05-10 1958-03-04 Rca Corp Methods of making surface alloyed semiconductor devices
US2835613A (en) * 1955-09-13 1958-05-20 Philips Corp Method of surface-treating semi-conductors
US2879188A (en) * 1956-03-05 1959-03-24 Westinghouse Electric Corp Processes for making transistors
DE1208412B (de) * 1959-11-13 1966-01-05 Siemens Ag Elektrisches Halbleiterbauelement mit mindestens einem an die Oberflaeche des Halbleiterkoerpers tretenden pn-UEbergang und Verfahren zum Herstellen eines solchen Bauelements
DE1228002B (de) * 1961-03-07 1966-11-03 Gerhard Gille Dr Ing Trockengleichrichter
US3165429A (en) * 1962-01-31 1965-01-12 Westinghouse Electric Corp Method of making a diffused base transistor
DE1639568B1 (de) * 1963-12-07 1969-10-23 Siemens Ag Verfahren zum Herstellen einer Schaltdiode mit einem Halbleiterkoerper mit vier Zonen von abwechselnd unterschiedlichem Leitungstyp
GB1037199A (en) * 1964-07-14 1966-07-27 Standard Telephones Cables Ltd Improvements in or relating to transistor manufacture
US3413528A (en) * 1966-03-03 1968-11-26 Atomic Energy Commission Usa Lithium drifted semiconductor radiation detector
FR2543835B1 (fr) * 1979-03-21 1988-11-25 Minnesota Mining & Mfg Electrode biomedicale

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994632A (en) * 1933-05-11 1935-03-19 Bell Telephone Labor Inc Asymmetric conductor
US2402661A (en) * 1941-03-01 1946-06-25 Bell Telephone Labor Inc Alternating current rectifier
US2505633A (en) * 1946-03-18 1950-04-25 Purdue Research Foundation Alloys of germanium and method of making same
NL84061C (US08092553-20120110-C00004.png) * 1948-06-26
US2502488A (en) * 1948-09-24 1950-04-04 Bell Telephone Labor Inc Semiconductor amplifier
NL77451C (US08092553-20120110-C00004.png) * 1948-12-29
US2666814A (en) * 1949-04-27 1954-01-19 Bell Telephone Labor Inc Semiconductor translating device
DE840418C (de) * 1949-05-30 1952-06-05 Licentia Gmbh Verfahren zum Herstellen Stoerstellen enthaltender Halbleiter, insbesondere fuer Trockengleichrichter
US2629672A (en) * 1949-07-07 1953-02-24 Bell Telephone Labor Inc Method of making semiconductive translating devices
DE826175C (de) * 1949-08-11 1951-12-27 Siemens Ag Verfahren zur Herstellung von Trockengleichrichtern, insbesondere Selengleichrichtern
NL82014C (US08092553-20120110-C00004.png) * 1949-11-30
US2750544A (en) * 1950-01-11 1956-06-12 Bell Telephone Labor Inc Silicon translating devices and methods of manufacture
US2792538A (en) * 1950-09-14 1957-05-14 Bell Telephone Labor Inc Semiconductor translating devices with embedded electrode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911706A (en) * 1953-12-09 1959-11-10 Philips Corp Method of making a semi-conductor device
DE1063277B (de) * 1954-08-23 1959-08-13 Gen Electric Co Ltd Verfahren zur Herstellung eines Halbleiters mit Legierungselektroden
DE977180C (de) * 1955-03-05 1965-06-24 Siemens Ag Verfahren zum elektrolytischen oertlich begrenzten Abtragen wie Bohren und Zerteilen halbleitenden kristallinen Materials
US2762001A (en) * 1955-03-23 1956-09-04 Globe Union Inc Fused junction transistor assemblies

Also Published As

Publication number Publication date
NL87573C (US08092553-20120110-C00004.png) 1957-10-15
US2994018A (en) 1961-07-25
BE523775A (US08092553-20120110-C00004.png)
FR1192936A (fr) 1959-10-29
GB748845A (en) 1956-05-09
FR65388E (fr) 1956-02-09
FR65476E (fr) 1956-02-21
DE976348C (de) 1963-07-18
GB727900A (en) 1955-04-13
BE506110A (US08092553-20120110-C00004.png)
GB728129A (en) 1955-04-13
DE976360C (de) 1963-08-01

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