BR7805509A - Aparelho para medir automaticamente a espessura de uma pelicula metalica e o valor da corrente que provoca a queima da mesma pelicula - Google Patents

Aparelho para medir automaticamente a espessura de uma pelicula metalica e o valor da corrente que provoca a queima da mesma pelicula

Info

Publication number
BR7805509A
BR7805509A BR7805509A BR7805509A BR7805509A BR 7805509 A BR7805509 A BR 7805509A BR 7805509 A BR7805509 A BR 7805509A BR 7805509 A BR7805509 A BR 7805509A BR 7805509 A BR7805509 A BR 7805509A
Authority
BR
Brazil
Prior art keywords
appliance
burning
causes
thickness
film
Prior art date
Application number
BR7805509A
Other languages
English (en)
Portuguese (pt)
Inventor
R Zeblisky
R Thompson
W Tucker
Original Assignee
Kollmorgen Tech 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 Tech Corp filed Critical Kollmorgen Tech Corp
Publication of BR7805509A publication Critical patent/BR7805509A/pt

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)
BR7805509A 1978-07-19 1978-08-24 Aparelho para medir automaticamente a espessura de uma pelicula metalica e o valor da corrente que provoca a queima da mesma pelicula BR7805509A (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR7805509A true BR7805509A (pt) 1980-03-11

Family

ID=25452709

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7805509A BR7805509A (pt) 1978-07-19 1978-08-24 Aparelho para medir automaticamente a espessura de uma pelicula metalica e o valor da corrente que provoca a queima da mesma pelicula

Country Status (11)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495178A (en) * 1992-11-10 1996-02-27 Cheng; David Method and apparatus for measuring film thickness
US5691648A (en) * 1992-11-10 1997-11-25 Cheng; David Method and apparatus for measuring sheet resistance and thickness of thin films and substrates
CN108712830B (zh) * 2018-05-30 2021-02-26 广东天承科技股份有限公司 一种电路板的无钯化学镀铜工艺

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
JPS5517489A (en) 1980-02-06
JPS5923363B2 (ja) 1984-06-01
IT7949804A0 (it) 1979-07-19
GB2027212A (en) 1980-02-13
FR2431679B1 (it) 1983-06-17
NL7904876A (nl) 1980-01-22
ATA497279A (de) 1984-09-15
GB2027212B (en) 1983-05-05
DE2929567A1 (de) 1980-01-31
SE7906144L (sv) 1980-01-20
CH640343A5 (de) 1983-12-30
DE2929567C2 (de) 1983-10-13
AT377885B (de) 1985-05-10
FR2431679A1 (fr) 1980-02-15
AU3884378A (en) 1980-02-14
SE448784B (sv) 1987-03-16

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