JPS5587059A - Test method - Google Patents
Test methodInfo
- Publication number
- JPS5587059A JPS5587059A JP16364778A JP16364778A JPS5587059A JP S5587059 A JPS5587059 A JP S5587059A JP 16364778 A JP16364778 A JP 16364778A JP 16364778 A JP16364778 A JP 16364778A JP S5587059 A JPS5587059 A JP S5587059A
- Authority
- JP
- Japan
- Prior art keywords
- tpd
- value
- tester
- measured
- register
- 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
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
PURPOSE: To obtain the measuring value closer to true value with high accuracy, by obtaining the error related to the tester as to an arbitrary sample among tested circuit (e.g. IC) and subtracting it from the tester measuring value of tested circuit of the same kind.
CONSTITUTION: Taking up an arbitrary tested circuit. e.g., IC11, the propagation delay time tpd0 between the input and output pins corresponded is manually measured with an oscilloscope, and the value is stored in the register 2 of the tester 1. Next, the IC11 is measured with the tester 1, the switch 4 is selected to the position a, the measured value tpd1 is fed to the difference circuit 5, tpd1-tpd0=Δ is obtained and it is stored in the register 3. After the preparation like this, IC11 of the same types is mounted on the measuring tool 10 of the tester 1, the propagation time tpd is measured, the switch 4 is selected to the position b, the value tpd2 is fed to the difference circuit 6, and the difference tpd2-Δ between the content Δ of the register 3 and it is obtained as the value closer to the true value.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16364778A JPS5587059A (en) | 1978-12-23 | 1978-12-23 | Test method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16364778A JPS5587059A (en) | 1978-12-23 | 1978-12-23 | Test method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5587059A true JPS5587059A (en) | 1980-07-01 |
Family
ID=15777912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16364778A Pending JPS5587059A (en) | 1978-12-23 | 1978-12-23 | Test method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5587059A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4878984A (en) * | 1972-01-22 | 1973-10-23 |
-
1978
- 1978-12-23 JP JP16364778A patent/JPS5587059A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4878984A (en) * | 1972-01-22 | 1973-10-23 |
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