JPS5548955A - Functional trimming of composite ic device - Google Patents
Functional trimming of composite ic deviceInfo
- 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
Links
Landscapes
- 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
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) |
-
1978
- 1978-10-02 JP JP12182778A patent/JPS5548955A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5326175A (en) | Electronic watch | |
JPS5337383A (en) | Semiconductor integrated circuit | |
JPS5548955A (en) | Functional trimming of composite ic device | |
JPS5350982A (en) | Low-high temperature testing station | |
JPS5344135A (en) | Function test equipment for logical operation circuit | |
JPS52149076A (en) | Semiconductor integrated circuit and its preparing method | |
JPS5374261A (en) | Constant voltage equipment | |
JPS54750A (en) | Constant current circuit | |
JPS5481086A (en) | Semiconductor integrated circuit | |
JPS5433019A (en) | Gate circuit of electronic musical instruments | |
JPS533081A (en) | Integrated circuit wiring method | |
JPS52149322A (en) | Soft starting circuit of commutation circuit | |
JPS5454078A (en) | Reference voltage generating circuit having selective temperature coefficients | |
JPS5434821A (en) | Digital arithmetic circuit for camera | |
JPS5336185A (en) | Electrode lead-out method of semiconductor integrated circuit | |
JPS5337371A (en) | Switch circuit | |
JPS5379317A (en) | Chrominance components processing unit | |
JPS52147084A (en) | Production of semiconductor device | |
JPS5344154A (en) | Current split circuit | |
JPS53123078A (en) | Integrated circuit device | |
JPS5290242A (en) | Terminal selective set in integrated circuit test unit | |
JPS5359844A (en) | Constant voltage circuit | |
JPS53116075A (en) | Chip coating method in electronic components | |
JPS5268377A (en) | Characteristics measurement for semiconductor element | |
JPS5335483A (en) | Resistance element and its production |