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GB2027212B - Measuring the thickness of metallic films on insulating substrates - Google Patents

Measuring the thickness of metallic films on insulating substrates

Info

Publication number
GB2027212B
GB2027212B GB7924748A GB7924748A GB2027212B GB 2027212 B GB2027212 B GB 2027212B GB 7924748 A GB7924748 A GB 7924748A GB 7924748 A GB7924748 A GB 7924748A GB 2027212 B GB2027212 B GB 2027212B
Authority
GB
United Kingdom
Prior art keywords
measuring
thickness
insulating substrates
metallic films
films
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
GB7924748A
Other versions
GB2027212A (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.)
Kollmorgen Technologies Corp
Original Assignee
Kollmorgen Technologies Corp
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 Kollmorgen Technologies Corp filed Critical Kollmorgen Technologies Corp
Publication of GB2027212A publication Critical patent/GB2027212A/en
Application granted granted Critical
Publication of GB2027212B publication Critical patent/GB2027212B/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
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0266—Marks, test patterns or identification means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/42—Plated through-holes or plated via connections
    • H05K3/422—Plated through-holes or plated via connections characterised by electroless plating method; pretreatment therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
GB7924748A 1978-07-19 1979-07-16 Measuring the thickness of metallic films on insulating substrates Expired GB2027212B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92607478A 1978-07-19 1978-07-19

Publications (2)

Publication Number Publication Date
GB2027212A GB2027212A (en) 1980-02-13
GB2027212B true GB2027212B (en) 1983-05-05

Family

ID=25452709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7924748A Expired GB2027212B (en) 1978-07-19 1979-07-16 Measuring the thickness of metallic films on insulating substrates

Country Status (11)

Country Link
JP (1) JPS5923363B2 (en)
AT (1) AT377885B (en)
AU (1) AU3884378A (en)
BR (1) BR7805509A (en)
CH (1) CH640343A5 (en)
DE (1) DE2929567C2 (en)
FR (1) FR2431679A1 (en)
GB (1) GB2027212B (en)
IT (1) IT7949804A0 (en)
NL (1) NL7904876A (en)
SE (1) SE448784B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5691648A (en) * 1992-11-10 1997-11-25 Cheng; David Method and apparatus for measuring sheet resistance and thickness of thin films and substrates
US5495178A (en) * 1992-11-10 1996-02-27 Cheng; David Method and apparatus for measuring film thickness
CN108712830B (en) * 2018-05-30 2021-02-26 广东天承科技股份有限公司 Palladium-free electroless copper plating process for circuit boards

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365663A (en) * 1962-06-29 1968-01-23 Shin Mitsubishi Jukogyo Kk Thickness measuring instrument for electro-conductive objects and associated methods
US4042880A (en) * 1974-01-07 1977-08-16 Unit Process Assemblies, Inc. Electrode assembly for measuring the effective thickness of thru-hole plating circuit board workpieces
JPS5262045A (en) * 1975-11-17 1977-05-23 Oki Electric Ind Co Ltd Measuring thickness of non-electrolytic copper plating of through-hole substrate

Also Published As

Publication number Publication date
IT7949804A0 (en) 1979-07-19
JPS5517489A (en) 1980-02-06
NL7904876A (en) 1980-01-22
AT377885B (en) 1985-05-10
JPS5923363B2 (en) 1984-06-01
DE2929567C2 (en) 1983-10-13
BR7805509A (en) 1980-03-11
DE2929567A1 (en) 1980-01-31
FR2431679B1 (en) 1983-06-17
SE448784B (en) 1987-03-16
AU3884378A (en) 1980-02-14
ATA497279A (en) 1984-09-15
CH640343A5 (en) 1983-12-30
SE7906144L (en) 1980-01-20
FR2431679A1 (en) 1980-02-15
GB2027212A (en) 1980-02-13

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Legal Events

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