JPS5548955A - Functional trimming of composite ic device - Google Patents

Functional trimming of composite ic device

Info

Publication number
JPS5548955A
JPS5548955A JP12182778A JP12182778A JPS5548955A JP S5548955 A JPS5548955 A JP S5548955A JP 12182778 A JP12182778 A JP 12182778A JP 12182778 A JP12182778 A JP 12182778A JP S5548955 A JPS5548955 A JP S5548955A
Authority
JP
Japan
Prior art keywords
trimming
standard
trimmed
resistor
value
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.)
Pending
Application number
JP12182778A
Other languages
Japanese (ja)
Inventor
Izumi Toriyama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12182778A priority Critical patent/JPS5548955A/en
Publication of JPS5548955A publication Critical patent/JPS5548955A/en
Pending legal-status Critical Current

Links

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  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

PURPOSE: To produce circuits conforming with a standard sample, consisting of a composite IC which has been trimmed so that the specified characteristics are produced at a standard temperature, by using this standard sample as monitor in trimming ICs.
CONSTITUTION: Monitor value Fs (T) to be taken out from terminal 11 of standard sample 1 is preset by trimming resistor R11 provided in a circuit block so that it becomes a specified value at a standard temperature of 25°C. Next, while circuit device 2 having resistor R21 in a circuit to be trimmed is maintained at 25°C, value f (A) appearing on terminal 21 is compared with the monitor value fs (T), and resistor R21 is trimmed so that both values become the same. By this, it is possible to operate functional trimming in conformity to a fixed standard and with good reproducibility.
COPYRIGHT: (C)1980,JPO&Japio
JP12182778A 1978-10-02 1978-10-02 Functional trimming of composite ic device Pending JPS5548955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12182778A JPS5548955A (en) 1978-10-02 1978-10-02 Functional trimming of composite ic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12182778A JPS5548955A (en) 1978-10-02 1978-10-02 Functional trimming of composite ic device

Publications (1)

Publication Number Publication Date
JPS5548955A true JPS5548955A (en) 1980-04-08

Family

ID=14820902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12182778A Pending JPS5548955A (en) 1978-10-02 1978-10-02 Functional trimming of composite ic device

Country Status (1)

Country Link
JP (1) JPS5548955A (en)

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