GB1263769A - Method of making a film resistor - Google Patents

Method of making a film resistor

Info

Publication number
GB1263769A
GB1263769A GB47370/69A GB4737069A GB1263769A GB 1263769 A GB1263769 A GB 1263769A GB 47370/69 A GB47370/69 A GB 47370/69A GB 4737069 A GB4737069 A GB 4737069A GB 1263769 A GB1263769 A GB 1263769A
Authority
GB
United Kingdom
Prior art keywords
current density
film
forming
different
making
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
GB47370/69A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1263769A publication Critical patent/GB1263769A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • H01C17/07—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by resistor foil bonding, e.g. cladding
    • 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
    • H01C17/24—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material
    • 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
    • H01C17/24—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material
    • H01C17/245—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material by mechanical means, e.g. sand blasting, cutting, ultrasonic treatment
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49099—Coating resistive material on a base

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

1,263,769. Resistors. HITACHI Ltd. 25 Sept., 1969 [11 Oct., 1968], No. 47370/69. Heading HIS. A resistive film 12 is constructed so that the current density along different current paths is different; and its resistance is first coarsely adjusted by forming a first transverse slot 15 in a portion of high current density and is then finely adjusted by forming a second slot 16 in a portion of low current density. The different current densities may be due to the shape of the resistive film, or the position of the terminals 13, 14, or non-homogeneous resistivity, or varying film thickness. The film may be of tantalum, nickel chrome alloy or cermet deposited on a ceramic substrate by printing, vacuum deposition or sputtering.
GB47370/69A 1968-10-11 1969-09-25 Method of making a film resistor Expired GB1263769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7352968 1968-10-11

Publications (1)

Publication Number Publication Date
GB1263769A true GB1263769A (en) 1972-02-16

Family

ID=13520838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47370/69A Expired GB1263769A (en) 1968-10-11 1969-09-25 Method of making a film resistor

Country Status (4)

Country Link
US (1) US3659339A (en)
FR (1) FR2020425A1 (en)
GB (1) GB1263769A (en)
NL (1) NL6915371A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110931196A (en) * 2019-12-14 2020-03-27 曾彩霞 Notching machine for resistor machining

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535842B2 (en) * 1972-07-14 1980-09-17
US4152687A (en) * 1977-10-27 1979-05-01 Litton Systems, Inc. Conductive plastic multi-turn potentiometer
US4159461A (en) * 1977-11-22 1979-06-26 Stackpole Components Co. Resistor network having horizontal geometry
JPH10289803A (en) 1997-04-16 1998-10-27 Matsushita Electric Ind Co Ltd Resistor and manufacture thereof
JP2004014697A (en) * 2002-06-05 2004-01-15 Denso Corp Resistor and trimming method therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1975410A (en) * 1931-12-12 1934-10-02 Pittsburgh Res Corp Electric heating furnace
NL257531A (en) * 1960-03-30
US3284878A (en) * 1963-12-09 1966-11-15 Corning Glass Works Method of forming thin film resistors
US3394386A (en) * 1966-09-12 1968-07-23 Vitramon Inc Method of calibrating electrical components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110931196A (en) * 2019-12-14 2020-03-27 曾彩霞 Notching machine for resistor machining

Also Published As

Publication number Publication date
NL6915371A (en) 1970-04-14
DE1950771B2 (en) 1973-10-18
DE1950771A1 (en) 1970-04-09
FR2020425A1 (en) 1970-07-10
US3659339A (en) 1972-05-02

Similar Documents

Publication Publication Date Title
GB1177285A (en) Thin-Film Impedance Arrangement
GB1482300A (en) Thin-film circuits
GB1263769A (en) Method of making a film resistor
GB1239235A (en)
SE7513853L (en) PROCEDURE FOR MANUFACTURE OF ELECTRICAL CONDUCTORS ON AN INSULATING SUBSTRATE
GB896071A (en) Improvements in or relating to electrical resistance elements
GB1354956A (en) Process for making a thin film network
GB1209781A (en) Thin fil distributed rc network
GB1302272A (en)
GB1220184A (en) Termination for metallic films
GB1221612A (en) Improvements in or relating to a method of manufacturing thin film resistor elements
GB1241574A (en) A method of plating conductive metals on film-forming materials
GB1088648A (en) Metal film resistors
GB1319765A (en) Resistive elements
GB1185059A (en) Improvements in Delay Lines
GB1477572A (en) Printed resistor and method of manufacturing thereof
GB1258259A (en)
ES252031U (en) Thick film variable resistor
Zorchenko et al. Magnetic Resistance of Two-Layer Thin Films of the Nickel--Silver System
GB1104881A (en) Improvements in or relating to methods of making thin film electric circuit elements
GB1185362A (en) Thin Film Resistor.
Birjega et al. Effect of Temperature on Electrical Resistance of NiCr Thin Layers
Derby Electroplating) Deposit Thickness and Faraday's Law
Sharma et al. Thickness dependence of electrical resistivity of vacuum-deposited selenium films.
Nageswar Effect of Nickel Ions on the Growth Habit of Copper Electrodeposits