GB1546512A - Optical checking devices for electric circuit boards - Google Patents

Optical checking devices for electric circuit boards

Info

Publication number
GB1546512A
GB1546512A GB885876A GB885876A GB1546512A GB 1546512 A GB1546512 A GB 1546512A GB 885876 A GB885876 A GB 885876A GB 885876 A GB885876 A GB 885876A GB 1546512 A GB1546512 A GB 1546512A
Authority
GB
United Kingdom
Prior art keywords
circuit boards
electric circuit
checking devices
optical checking
optical
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.)
Expired
Application number
GB885876A
Other languages
English (en)
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.)
Siemens AG Oesterreich
Original Assignee
Siemens AG Oesterreich
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 Siemens AG Oesterreich filed Critical Siemens AG Oesterreich
Publication of GB1546512A publication Critical patent/GB1546512A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/08—Optical projection comparators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/302—Contactless testing
    • G01R31/308—Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation
    • G01R31/309—Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation of printed or hybrid circuits or circuit substrates

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
GB885876A 1975-03-07 1976-03-05 Optical checking devices for electric circuit boards Expired GB1546512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT176775A AT335552B (de) 1975-03-07 1975-03-07 Optische prufeinrichtung fur die bauteilbestuckung elektrischer leiterplatten

Publications (1)

Publication Number Publication Date
GB1546512A true GB1546512A (en) 1979-05-23

Family

ID=3520566

Family Applications (1)

Application Number Title Priority Date Filing Date
GB885876A Expired GB1546512A (en) 1975-03-07 1976-03-05 Optical checking devices for electric circuit boards

Country Status (5)

Country Link
AT (1) AT335552B (enExample)
CH (1) CH603020A5 (enExample)
DD (1) DD124489A5 (enExample)
DE (1) DE2554830C3 (enExample)
GB (1) GB1546512A (enExample)

Also Published As

Publication number Publication date
DE2554830B2 (de) 1977-11-03
CH603020A5 (enExample) 1978-08-15
DE2554830C3 (de) 1978-06-22
ATA176775A (de) 1976-07-15
DD124489A5 (enExample) 1977-02-23
AT335552B (de) 1977-03-25
DE2554830A1 (de) 1976-09-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee