GB1055009A - A process for etching printed circuits - Google Patents

A process for etching printed circuits

Info

Publication number
GB1055009A
GB1055009A GB35244/65A GB3524465A GB1055009A GB 1055009 A GB1055009 A GB 1055009A GB 35244/65 A GB35244/65 A GB 35244/65A GB 3524465 A GB3524465 A GB 3524465A GB 1055009 A GB1055009 A GB 1055009A
Authority
GB
United Kingdom
Prior art keywords
printed circuits
aug
etching
etching printed
urea
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
GB35244/65A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1055009A publication Critical patent/GB1055009A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/18—Acidic compositions for etching copper or alloys thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

1,055,009. Etching. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. Aug. 17, 1965 [Aug. 22, 1964], No. 35244/65. Heading B6J. Printed circuits are etched with hydrogen peroxide containing mineral acid, preferably sulphuric acid, solutions containing urea or urea derivatives. Ferric chloride or other heavy metal salts may be added.
GB35244/65A 1964-08-22 1965-08-17 A process for etching printed circuits Expired GB1055009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED45262A DE1255443B (en) 1964-08-22 1964-08-22 Process for chemical etching of printed circuits

Publications (1)

Publication Number Publication Date
GB1055009A true GB1055009A (en) 1967-01-11

Family

ID=7048877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35244/65A Expired GB1055009A (en) 1964-08-22 1965-08-17 A process for etching printed circuits

Country Status (6)

Country Link
US (1) US3463733A (en)
BE (1) BE668424A (en)
DE (1) DE1255443B (en)
FR (1) FR1442847A (en)
GB (1) GB1055009A (en)
NL (1) NL6510927A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668131A (en) * 1968-08-09 1972-06-06 Allied Chem Dissolution of metal with acidified hydrogen peroxide solutions
US3953263A (en) * 1973-11-26 1976-04-27 Hitachi, Ltd. Process for preventing the formation of nitrogen monoxide in treatment of metals with nitric acid or mixed acid
US4158593A (en) * 1977-11-08 1979-06-19 Dart Industries Inc. Dissolution of metals utilizing a H2 O2 -sulfuric acid solution catalyzed with selenium compounds
US4140646A (en) * 1977-11-08 1979-02-20 Dart Industries Inc. Dissolution of metals with a selenium catalyzed H2 O2 -H2 SO4 etchant containing t-butyl hydroperoxide
DE2847267C2 (en) * 1978-10-31 1993-12-23 Decker Gmbh & Co Kg Geb Stabilizer for an aqueous solution for pickling and / or chemical shining of objects made of copper or copper alloys in a multi-stage process and use of the stabilizer
US4673522A (en) * 1981-11-05 1987-06-16 Union Oil Company Of California Methods for removing obstructions from conduits with urea-sulfuric acid compositions
US4401509A (en) * 1982-09-07 1983-08-30 Fmc Corporation Composition and process for printed circuit etching using a sulfuric acid solution containing hydrogen peroxide
US4636282A (en) * 1985-06-20 1987-01-13 Great Lakes Chemical Corporation Method for etching copper and composition useful therein
EP0265578A1 (en) * 1986-10-30 1988-05-04 Jan-Olof Eriksson A non-abrasive polish or cleaning composition and process for its preparation
US4946520A (en) * 1987-02-02 1990-08-07 Phelps Dodge Industries, Inc. Copper rod manufactured by casting, hot rolling and chemically shaving and pickling
US4754803A (en) * 1987-02-02 1988-07-05 Phelps Dodge Industries, Inc. Manufacturing copper rod by casting, hot rolling and chemically shaving and pickling
US5338367A (en) * 1989-07-26 1994-08-16 Ugine, Aciers De Chatillon Et Gueugnon Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family
US4997040A (en) * 1989-10-17 1991-03-05 Baker Hughes Incorporated Corrosion inhibition using mercury intensifiers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1758920A (en) * 1926-09-16 1930-05-20 Chem Fab Weissenstein G M B H Stabilized peroxide solution
US2120430A (en) * 1933-01-07 1938-06-14 Winthrop Chem Co Inc Stabilized solid hydrogen peroxide preparation
US2043257A (en) * 1933-10-09 1936-06-09 Stauffer Chemical Co Preservation of chlorinated hydrocarbons
US2177751A (en) * 1938-05-28 1939-10-31 Gen Chemical Corp Engraving process
US2211400A (en) * 1938-08-10 1940-08-13 Chase Brass & Copper Co Pickling solution for copper-base alloys
US2428804A (en) * 1945-09-07 1947-10-14 Esther M Terry Copper cleaning composition
US2662814A (en) * 1949-08-27 1953-12-15 Diversey Corp Method and composition for chemically polishing metals
US2978301A (en) * 1957-01-11 1961-04-04 Fmc Corp Process and composition for the dissolution of copper
BE657099A (en) * 1963-12-30

Also Published As

Publication number Publication date
FR1442847A (en) 1966-06-17
BE668424A (en) 1965-12-16
NL6510927A (en) 1966-02-23
US3463733A (en) 1969-08-26
DE1255443B (en) 1967-11-30

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