FR2112510B1 - - Google Patents

Info

Publication number
FR2112510B1
FR2112510B1 FR7139845A FR7139845A FR2112510B1 FR 2112510 B1 FR2112510 B1 FR 2112510B1 FR 7139845 A FR7139845 A FR 7139845A FR 7139845 A FR7139845 A FR 7139845A FR 2112510 B1 FR2112510 B1 FR 2112510B1
Authority
FR
France
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
FR7139845A
Other versions
FR2112510A1 (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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Inc filed Critical Western Electric Co Inc
Publication of FR2112510A1 publication Critical patent/FR2112510A1/fr
Application granted granted Critical
Publication of FR2112510B1 publication Critical patent/FR2112510B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
    • H01C17/26—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by converting resistive material
    • H01C17/262—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by converting resistive material by electrolytic treatment, e.g. anodic oxydation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N97/00—Electric solid-state thin-film or thick-film devices, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Cold Cathode And The Manufacture (AREA)
FR7139845A 1970-11-06 1971-11-05 Expired FR2112510B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8737070A 1970-11-06 1970-11-06

Publications (2)

Publication Number Publication Date
FR2112510A1 FR2112510A1 (fr) 1972-06-16
FR2112510B1 true FR2112510B1 (fr) 1974-08-19

Family

ID=22204779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7139845A Expired FR2112510B1 (fr) 1970-11-06 1971-11-05

Country Status (9)

Country Link
US (1) US3635802A (fr)
BE (1) BE774895A (fr)
CA (1) CA928433A (fr)
DE (1) DE2155220A1 (fr)
FR (1) FR2112510B1 (fr)
GB (1) GB1363528A (fr)
IT (1) IT942267B (fr)
NL (1) NL7115203A (fr)
SE (1) SE393133B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017302B1 (fr) * 1971-05-13 1975-06-19
US3956081A (en) * 1973-04-09 1976-05-11 General Radio Method of high speed resistor trimming
DE3004149A1 (de) * 1980-02-05 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Verfahren zur reproduzierbaren herstellung metallischer schichten
US6730984B1 (en) * 2000-11-14 2004-05-04 International Business Machines Corporation Increasing an electrical resistance of a resistor by oxidation or nitridization
DE10214618B4 (de) * 2002-04-03 2007-07-12 Robert Bosch Gmbh Verfahren zum Bearbeiten von Werkstücken mittels eines Bearbeitungsverfahrens, insbesondere des elektrochemischen Bearbeitungsverfahrens
CN111863365B (zh) * 2019-04-28 2022-04-26 深圳市杰普特光电股份有限公司 调阻机及其调阻方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920018A (en) * 1957-04-22 1960-01-05 Electro Chem Mfg Co Inc Anodizing process and system
US3520783A (en) * 1967-02-10 1970-07-14 Northern Electric Co Method of adjusting a resistor by anodizing

Also Published As

Publication number Publication date
DE2155220A1 (de) 1972-05-10
BE774895A (fr) 1972-03-01
SE393133B (sv) 1977-05-02
GB1363528A (en) 1974-08-14
IT942267B (it) 1973-03-20
FR2112510A1 (fr) 1972-06-16
NL7115203A (fr) 1972-05-09
CA928433A (en) 1973-06-12
US3635802A (en) 1972-01-18

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Legal Events

Date Code Title Description
ST Notification of lapse