JPS5750458A - Functional trimming of film resistance - Google Patents

Functional trimming of film resistance

Info

Publication number
JPS5750458A
JPS5750458A JP55126122A JP12612280A JPS5750458A JP S5750458 A JPS5750458 A JP S5750458A JP 55126122 A JP55126122 A JP 55126122A JP 12612280 A JP12612280 A JP 12612280A JP S5750458 A JPS5750458 A JP S5750458A
Authority
JP
Japan
Prior art keywords
trimming
functional
functional trimming
time
film resistance
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
JP55126122A
Other languages
Japanese (ja)
Other versions
JPS5810844B2 (en
Inventor
Koichi Ono
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
Priority to JP55126122A priority Critical patent/JPS5810844B2/en
Publication of JPS5750458A publication Critical patent/JPS5750458A/en
Publication of JPS5810844B2 publication Critical patent/JPS5810844B2/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

Landscapes

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

Abstract

PURPOSE:To reduce trimming time, by a method wherein an adjusting physical amount is nearly closed to a setting value by simple trimming before functional trimming and retrimming is performed at the time of the functional trimming only by the amount deviated from the setting value. CONSTITUTION:Resistors R1A and R2A are trimmed at the stage having formed resistors to maintain the neutral electrical potential Vp of R1A, R1B and R2A, R2B at the value of (R1A+R2B) forming Vp=anti Vp. Next, functional trimming is done while operating an IC and a frequency f is observed to trim R1B or R2B. This method appreciably reduces mean time requiring for functional trimming.
JP55126122A 1980-09-12 1980-09-12 Functional trimming method of membrane resistor Expired JPS5810844B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55126122A JPS5810844B2 (en) 1980-09-12 1980-09-12 Functional trimming method of membrane resistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55126122A JPS5810844B2 (en) 1980-09-12 1980-09-12 Functional trimming method of membrane resistor

Publications (2)

Publication Number Publication Date
JPS5750458A true JPS5750458A (en) 1982-03-24
JPS5810844B2 JPS5810844B2 (en) 1983-02-28

Family

ID=14927187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55126122A Expired JPS5810844B2 (en) 1980-09-12 1980-09-12 Functional trimming method of membrane resistor

Country Status (1)

Country Link
JP (1) JPS5810844B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6269658A (en) * 1985-09-24 1987-03-30 Nec Corp Function trimming method for resistor in balance circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6269658A (en) * 1985-09-24 1987-03-30 Nec Corp Function trimming method for resistor in balance circuit
JPH0567072B2 (en) * 1985-09-24 1993-09-24 Nippon Electric Co

Also Published As

Publication number Publication date
JPS5810844B2 (en) 1983-02-28

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