JPS6468667A - Test system for printed board - Google Patents
Test system for printed boardInfo
- Publication number
- JPS6468667A JPS6468667A JP62226053A JP22605387A JPS6468667A JP S6468667 A JPS6468667 A JP S6468667A JP 62226053 A JP62226053 A JP 62226053A JP 22605387 A JP22605387 A JP 22605387A JP S6468667 A JPS6468667 A JP S6468667A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- terminal
- prober
- turns
- voltmeter
- 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 Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
PURPOSE:To easily test a high-density package by grounding an ECL (emitter coupled logic) LSI and the power line of a terminal resistance respectively, and bringing a prober into contact with the input terminal of the terminal resistance and finding a current value corresponding to each output value. CONSTITUTION:The changeover switch 15 of the prober 16 is operated to the side of a power source ES1 and the prober 60 is brought into contact with the input terminal A of a terminal circuit 40. The current voltage turns off both transistors (TR) 11 and 3 and resistance values calculated by a voltmeter 13 and an ammeter 14 are equal to the resistance of the circuit 40. Then the switch is changed over to the side of a power source ES2, and TR 3 turns off and the TR 11 turns on, so that the current flows to the ground through terminals A and B and the TR 11 simultaneously with a resistance 12. For the purpose, the resistance values calculated by the voltmeter 13 and ammeter 14 are compared with a prescribed value to easily inspect whether or not a printed wiring pattern is normal and whether or not the LSI can be mounted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226053A JPS6468667A (en) | 1987-09-09 | 1987-09-09 | Test system for printed board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226053A JPS6468667A (en) | 1987-09-09 | 1987-09-09 | Test system for printed board |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6468667A true JPS6468667A (en) | 1989-03-14 |
Family
ID=16839055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62226053A Pending JPS6468667A (en) | 1987-09-09 | 1987-09-09 | Test system for printed board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6468667A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008171744A (en) * | 2007-01-15 | 2008-07-24 | Buffalo Inc | Attachment plug, manufacturing method thereof, and connection terminal |
JP2009192295A (en) * | 2008-02-13 | 2009-08-27 | Hioki Ee Corp | Method and apparatus for discriminating output type of clamp sensor |
-
1987
- 1987-09-09 JP JP62226053A patent/JPS6468667A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008171744A (en) * | 2007-01-15 | 2008-07-24 | Buffalo Inc | Attachment plug, manufacturing method thereof, and connection terminal |
JP2009192295A (en) * | 2008-02-13 | 2009-08-27 | Hioki Ee Corp | Method and apparatus for discriminating output type of clamp sensor |
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