JPS55156804A - Pattern tester for print wiring plate - Google Patents

Pattern tester for print wiring plate

Info

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
Application number
JP6394079A
Other languages
Japanese (ja)
Inventor
Koichi Tsukazaki
Yukio Uto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6394079A priority Critical patent/JPS55156804A/en
Publication of JPS55156804A publication Critical patent/JPS55156804A/en
Pending legal-status Critical Current

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
JP6394079A 1979-05-25 1979-05-25 Pattern tester for print wiring plate Pending JPS55156804A (en)

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)

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