FR2020454A5 - Chemical etching of printed circuits - Google Patents

Chemical etching of printed circuits

Info

Publication number
FR2020454A5
FR2020454A5 FR6901237A FR6901237A FR2020454A5 FR 2020454 A5 FR2020454 A5 FR 2020454A5 FR 6901237 A FR6901237 A FR 6901237A FR 6901237 A FR6901237 A FR 6901237A FR 2020454 A5 FR2020454 A5 FR 2020454A5
Authority
FR
France
Prior art keywords
plate
chemical etching
printed circuits
solvent
jet
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
FR6901237A
Other languages
French (fr)
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.)
PHOTOGRAVURE STE MODERNE
Original Assignee
PHOTOGRAVURE STE MODERNE
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 PHOTOGRAVURE STE MODERNE filed Critical PHOTOGRAVURE STE MODERNE
Priority to FR6901237A priority Critical patent/FR2020454A5/en
Application granted granted Critical
Publication of FR2020454A5 publication Critical patent/FR2020454A5/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05K3/0085—Apparatus for treatments of printed circuits with liquids not provided for in groups H05K3/02 - H05K3/46; conveyors and holding means therefor
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching

Abstract

Unmasked areas of the plate are wholly or partially removed by a projected solvent. The solvent jet, which is perpendicular to the plate, describes a zigzag path across the plate, and covering at least its width. The liquid jet projects on the two lateral sides of the plate.
FR6901237A 1969-01-23 1969-01-23 Chemical etching of printed circuits Expired FR2020454A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6901237A FR2020454A5 (en) 1969-01-23 1969-01-23 Chemical etching of printed circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6901237A FR2020454A5 (en) 1969-01-23 1969-01-23 Chemical etching of printed circuits

Publications (1)

Publication Number Publication Date
FR2020454A5 true FR2020454A5 (en) 1970-07-10

Family

ID=9028121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6901237A Expired FR2020454A5 (en) 1969-01-23 1969-01-23 Chemical etching of printed circuits

Country Status (1)

Country Link
FR (1) FR2020454A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476664A2 (en) * 1990-09-20 1992-03-25 Dainippon Screen Mfg. Co., Ltd. Method of forming small through-holes in thin metal plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476664A2 (en) * 1990-09-20 1992-03-25 Dainippon Screen Mfg. Co., Ltd. Method of forming small through-holes in thin metal plate
EP0476664A3 (en) * 1990-09-20 1993-03-24 Dainippon Screen Mfg. Co., Ltd. Method of forming small through-holes in thin metal plate

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Legal Events

Date Code Title Description
ST Notification of lapse