GB1132562A - Precision resistor of great stability - Google Patents

Precision resistor of great stability

Info

Publication number
GB1132562A
GB1132562A GB1260/66A GB126066A GB1132562A GB 1132562 A GB1132562 A GB 1132562A GB 1260/66 A GB1260/66 A GB 1260/66A GB 126066 A GB126066 A GB 126066A GB 1132562 A GB1132562 A GB 1132562A
Authority
GB
United Kingdom
Prior art keywords
substrate
resistance
layer
resistor
film
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
GB1260/66A
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.)
VISHAY INSTR Inc
Original Assignee
VISHAY INSTR 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 VISHAY INSTR Inc filed Critical VISHAY INSTR Inc
Publication of GB1132562A publication Critical patent/GB1132562A/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
    • H01C17/22—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
    • H01C1/024—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being hermetically sealed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
    • H01C1/032—Housing; Enclosing; Embedding; Filling the housing or enclosure plural layers surrounding the resistive element
    • 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
    • H01C17/232—Adjusting the temperature coefficient; Adjusting value of resistance by adjusting temperature coefficient of resistance
    • 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
    • H01C17/2416—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material by chemical etching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/06—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material including means to minimise changes in resistance with changes in temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Non-Adjustable Resistors (AREA)
  • Measurement Of Force In General (AREA)

Abstract

1,132,562. Resistors. VISHAY INSTRUMENTS Inc. 11 Jan., 1966 [4 May, 1965], No. 1260/66. Heading H1S. Variation in the resistance of a metal film on a substrate with changes in temperature or in the moisture content of an overlying protective film is avoided by making the resistive layer of, for example, nickel-chrome alloy, with a coefficient of expansion with temperature which is greater than that of its glass substrate, and placing identical plastics coatings on both sides of the substrate so that expansion or contraction of the plastics coatings does not cause it to bend. A rise in temperature places the resistive layer in compression, thickening it, and a fall puts it in tension, thinning it. The net sum of the resistance changes due to thermal expansion of the layer itself and resulting from differential expansion is arranged to be substantially equal and opposite to that due to the temperature coefficient of resistivity of the alloy. As the last is not linear a predictable residual variation of the resistance of the film necessarily remains. The resistor illustrated has a photo-etched resistance track on a glass substrate 11 with an epoxy coating 13 over it, balanced by a similar layer on the other side of the substrate. The value of the resistor is adjusted in manufacture by extending selected etched dividing lines (e.g. 22) to the edge of the film, so that the current is made to follow the looped tracks 19, 21 &c. The resistor may be packed in soft rubber, polyurethane foam or other soft material to protect it from forces exerted by its case and be fed by flexible conductors. Two or more resistors may be made on a single substrate, not necessarily on the same face, and other portions of a circuit may be built on the resistor substrate. Instead of glass the substrate may be of other material, such as metal insulated from the resistive film by a plastics layer, the materials being so chosen that the temperature coefficient or resistivity and the stresses and distortion imposed on the resistance layer by the substrate tend to cancel one another out.
GB1260/66A 1965-05-04 1966-01-11 Precision resistor of great stability Expired GB1132562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US453098A US3405381A (en) 1965-05-04 1965-05-04 Thin film resistor

Publications (1)

Publication Number Publication Date
GB1132562A true GB1132562A (en) 1968-11-06

Family

ID=23799195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1260/66A Expired GB1132562A (en) 1965-05-04 1966-01-11 Precision resistor of great stability

Country Status (5)

Country Link
US (1) US3405381A (en)
DE (1) DE1590870C3 (en)
FR (1) FR1464998A (en)
GB (1) GB1132562A (en)
NL (1) NL6602248A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464542A1 (en) * 1979-09-04 1981-03-06 Vishay Intertechnology Inc PRECISION ELECTRICAL RESISTANCE WITH IMPROVED TEMPERATURE CHARACTERISTICS AND METHOD OF MANUFACTURING THE SAME
GB2168540A (en) * 1984-12-12 1986-06-18 George France Resistors capable of withstanding power surges

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601744A (en) * 1969-07-14 1971-08-24 Vishay Intertechnology Inc Variable resistor with strain-reducing attachment means for the substrate
US3761860A (en) * 1970-05-20 1973-09-25 Alps Electric Co Ltd Printed circuit resistor
US3824521A (en) * 1973-09-24 1974-07-16 Tdk Electronics Co Ltd Resistor
USRE28597E (en) * 1972-09-27 1975-10-28 Resistor
US3986082A (en) * 1975-02-14 1976-10-12 The United States Of America As Represented By The Secretary Of The Air Force Universal temperature controlled reference junction
FR2344940A1 (en) * 1976-03-18 1977-10-14 Electro Resistance PROCESS FOR THE MANUFACTURING OF ELECTRICAL RESISTORS FROM A METAL SHEET FIXED ON AN INSULATING SUPPORT AND RELATED DEVICE
US4306217A (en) * 1977-06-03 1981-12-15 Angstrohm Precision, Inc. Flat electrical components
US4172249A (en) * 1977-07-11 1979-10-23 Vishay Intertechnology, Inc. Resistive electrical components
JPS53131461A (en) * 1977-12-26 1978-11-16 Tdk Electronics Co Ltd Resistor and method of manufacturing the same
US4152689A (en) * 1978-02-13 1979-05-01 American Components Inc. Electrical resistor package which remains unaffected by ambient stresses and humidity
GB2018036B (en) * 1978-03-31 1982-08-25 Vishay Intertechnology Inc Precision resistors subassemblies therefor and their manufacture
US4250482A (en) * 1979-01-02 1981-02-10 Allen-Bradley Company Packaged electronic component and method of preparing the same
US4418474A (en) * 1980-01-21 1983-12-06 Barnett William P Precision resistor fabrication employing tapped resistive elements
US4570150A (en) * 1983-12-14 1986-02-11 Vishay Intertechnology, Inc. Precision resistor and method of making same
DE3571276D1 (en) * 1984-02-01 1989-08-03 Koch Elektronik Ag Trimming method for a temperature sensor
US4804805A (en) * 1987-12-21 1989-02-14 Therm-O-Disc, Incorporated Protected solder connection and method
DE4441280C2 (en) * 1994-11-19 1998-08-27 Asea Brown Boveri PTC thermistor and device for current limitation with at least one PTC thermistor
DE10052178C1 (en) * 2000-10-20 2002-05-29 Siemens Ag Electrical resistance
US6529115B2 (en) 2001-03-16 2003-03-04 Vishay Israel Ltd. Surface mounted resistor
US6892443B2 (en) * 2002-11-25 2005-05-17 Vishay Intertechnology Method of manufacturing a resistor
DE202005021434U1 (en) 2004-06-07 2008-03-20 Cascade Microtech, Inc., Beaverton Thermo-optical clamping device
US8466772B2 (en) 2008-08-27 2013-06-18 Vishay Israel, Ltd Precision variable resistor
CN105825988A (en) * 2016-05-06 2016-08-03 广东欧珀移动通信有限公司 Encapsulating method of chip resistor and chip resistor
WO2018190868A1 (en) * 2017-04-14 2018-10-18 Hewlett-Packard Development Company, L.P. Substrate(s) enclosed by energy absorbing material(s)
CN112099612A (en) * 2020-09-18 2020-12-18 联想(北京)有限公司 Server mainboard, server and power supply control method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751477A (en) * 1952-07-15 1956-06-19 Pittsburgh Plate Glass Co Electrical resistive device
US2822524A (en) * 1954-10-25 1958-02-04 Sanders Associates Inc Wave guide
US2939807A (en) * 1956-06-29 1960-06-07 Thermway Ind Inc Method of making a heating panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464542A1 (en) * 1979-09-04 1981-03-06 Vishay Intertechnology Inc PRECISION ELECTRICAL RESISTANCE WITH IMPROVED TEMPERATURE CHARACTERISTICS AND METHOD OF MANUFACTURING THE SAME
GB2168540A (en) * 1984-12-12 1986-06-18 George France Resistors capable of withstanding power surges

Also Published As

Publication number Publication date
US3405381A (en) 1968-10-08
NL6602248A (en) 1966-11-07
DE1590870B2 (en) 1975-04-03
DE1590870C3 (en) 1980-04-24
DE1590870A1 (en) 1970-04-16
FR1464998A (en) 1967-01-06

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