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FR2275005A2 - Miniature precision resistor with coil and resistive layer - coefficient of resistance with temp. adjusted for zero overall coefficient - Google Patents

Miniature precision resistor with coil and resistive layer - coefficient of resistance with temp. adjusted for zero overall coefficient

Info

Publication number
FR2275005A2
FR2275005A2 FR7420725A FR7420725A FR2275005A2 FR 2275005 A2 FR2275005 A2 FR 2275005A2 FR 7420725 A FR7420725 A FR 7420725A FR 7420725 A FR7420725 A FR 7420725A FR 2275005 A2 FR2275005 A2 FR 2275005A2
Authority
FR
France
Prior art keywords
coefficient
coil
adjusted
resistive layer
temp
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.)
Granted
Application number
FR7420725A
Other languages
French (fr)
Other versions
FR2275005B2 (en
Inventor
Roger Scursoglio
Gerard Lanteri
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.)
Electro Resistance
Original Assignee
Electro Resistance
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 Electro Resistance filed Critical Electro Resistance
Priority to FR7420725A priority Critical patent/FR2275005A2/en
Publication of FR2275005A2 publication Critical patent/FR2275005A2/en
Application granted granted Critical
Publication of FR2275005B2 publication Critical patent/FR2275005B2/fr
Granted 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
    • H01C17/232—Adjusting the temperature coefficient; Adjusting value of resistance by adjusting temperature coefficient of resistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)

Abstract

A precision resistor has a coil and a resistive layer. The value of the resistor may be adjusted by trimming the resistive layer. The coefficient of resistive change with temperature of the layer is also adjusted, before assembly to the coil, so as to obtain an overall resistive change coefficient with temperature which is practically zero. The appropriate temperature coefficient is obtained by selecting a resistive material and by firing the material at a given temperature and for a set time.
FR7420725A 1974-06-14 1974-06-14 Miniature precision resistor with coil and resistive layer - coefficient of resistance with temp. adjusted for zero overall coefficient Granted FR2275005A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7420725A FR2275005A2 (en) 1974-06-14 1974-06-14 Miniature precision resistor with coil and resistive layer - coefficient of resistance with temp. adjusted for zero overall coefficient

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7420725A FR2275005A2 (en) 1974-06-14 1974-06-14 Miniature precision resistor with coil and resistive layer - coefficient of resistance with temp. adjusted for zero overall coefficient

Publications (2)

Publication Number Publication Date
FR2275005A2 true FR2275005A2 (en) 1976-01-09
FR2275005B2 FR2275005B2 (en) 1977-06-03

Family

ID=9140077

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7420725A Granted FR2275005A2 (en) 1974-06-14 1974-06-14 Miniature precision resistor with coil and resistive layer - coefficient of resistance with temp. adjusted for zero overall coefficient

Country Status (1)

Country Link
FR (1) FR2275005A2 (en)

Also Published As

Publication number Publication date
FR2275005B2 (en) 1977-06-03

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