JPS55156804A - Pattern tester for print wiring plate - Google Patents
Pattern tester for print wiring plateInfo
- Publication number
- JPS55156804A JPS55156804A JP6394079A JP6394079A JPS55156804A JP S55156804 A JPS55156804 A JP S55156804A JP 6394079 A JP6394079 A JP 6394079A JP 6394079 A JP6394079 A JP 6394079A JP S55156804 A JPS55156804 A JP S55156804A
- Authority
- JP
- Japan
- Prior art keywords
- wiring
- mirrors
- print wiring
- lenses
- wiring pattern
- 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
Abstract
PURPOSE: To avoid the detection of the shift for the through-hole and thus prevent the yield lowering caused by the unnecessary detection of the fault, by obtaining both the through-hole part and the wiring pattern in the form of the same binary data.
CONSTITUTION: The light delivered from light sources 21 and 21' are turned down ward by mirrors 23 and 23' after passing through lenses 22 and 22' each, and then irradiated to each part on the wiring surface. The light beams reflected by print wiring plates 1 and 1' are formed on image sensors 25 and 25' via half-mirrors 23 and 23' plus lenses 24 and 24' each and in the form of an optical image. The outputs of sensors 25 and 25' are supplied to comparing/collating device 27', and thus the electric signals of the detected image are processed for comparison with the level corresponding to the through-hole part set as the same level as the wiring pattern surface.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6394079A JPS55156804A (en) | 1979-05-25 | 1979-05-25 | Pattern tester for print wiring plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6394079A JPS55156804A (en) | 1979-05-25 | 1979-05-25 | Pattern tester for print wiring plate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55156804A true JPS55156804A (en) | 1980-12-06 |
Family
ID=13243840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6394079A Pending JPS55156804A (en) | 1979-05-25 | 1979-05-25 | Pattern tester for print wiring plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55156804A (en) |
-
1979
- 1979-05-25 JP JP6394079A patent/JPS55156804A/en active Pending
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