GB1361445A - Selectively stripping metal surfaces and compositions therefor - Google Patents

Selectively stripping metal surfaces and compositions therefor

Info

Publication number
GB1361445A
GB1361445A GB4104071A GB4104071A GB1361445A GB 1361445 A GB1361445 A GB 1361445A GB 4104071 A GB4104071 A GB 4104071A GB 4104071 A GB4104071 A GB 4104071A GB 1361445 A GB1361445 A GB 1361445A
Authority
GB
United Kingdom
Prior art keywords
thiourea
acid
hbf
sept
tin
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
GB4104071A
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.)
IMASA SA
Original Assignee
IMASA SA
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 IMASA SA filed Critical IMASA SA
Publication of GB1361445A publication Critical patent/GB1361445A/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
    • C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
    • 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
    • H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
    • H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
    • H05K3/067—Etchants

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)
  • Manufacturing Of Printed Wiring (AREA)
  • ing And Chemical Polishing (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)
  • Chemically Coating (AREA)
GB4104071A 1970-09-04 1971-09-02 Selectively stripping metal surfaces and compositions therefor Expired GB1361445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6976970A 1970-09-04 1970-09-04

Publications (1)

Publication Number Publication Date
GB1361445A true GB1361445A (en) 1974-07-24

Family

ID=22091105

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4104071A Expired GB1361445A (en) 1970-09-04 1971-09-02 Selectively stripping metal surfaces and compositions therefor

Country Status (7)

Country Link
US (1) US3677949A (enExample)
JP (1) JPS5017336B1 (enExample)
CA (1) CA923024A (enExample)
DE (1) DE2143785A1 (enExample)
ES (1) ES394816A1 (enExample)
FR (1) FR2102030A5 (enExample)
GB (1) GB1361445A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157323A (en) * 1984-04-02 1985-10-23 Parker Chemical Co Improved flavour aluminium cleaning composition and process

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841905A (en) * 1970-11-19 1974-10-15 Rbp Chem Corp Method of preparing printed circuit boards with terminal tabs
US3888778A (en) * 1973-03-13 1975-06-10 Merton Beckwith Bright dip composition for tin/lead
GB1446816A (en) * 1973-05-02 1976-08-18 Furukawa Electric Co Ltd Chemical dissolution treatment of tin or alloys thereof
US3926699A (en) * 1974-06-17 1975-12-16 Rbp Chemical Corp Method of preparing printed circuit boards with terminal tabs
US4004956A (en) * 1974-08-14 1977-01-25 Enthone, Incorporated Selectively stripping tin or tin-lead alloys from copper substrates
US3990982A (en) * 1974-12-18 1976-11-09 Rbp Chemical Corporation Composition for stripping lead-tin solder
USRE29181E (en) * 1974-12-18 1977-04-12 Rbp Chemical Corporation Method of preparing printed circuit boards with terminal tabs
US4175011A (en) * 1978-07-17 1979-11-20 Allied Chemical Corporation Sulfate-free method of etching copper pattern on printed circuit boards
US4306933A (en) * 1980-02-11 1981-12-22 Chemline Industries Tin/tin-lead stripping solutions
IT1144797B (it) * 1981-10-14 1986-10-29 Alfachimici Spa Soluzione per l asportazione di stagno o lega stagno piombo da un substrato mediante operazione a spruzzo
USRE32555E (en) * 1982-09-20 1987-12-08 Circuit Chemistry Corporation Solder stripping solution
US4397753A (en) * 1982-09-20 1983-08-09 Circuit Chemistry Corporation Solder stripping solution
US4732649A (en) * 1986-06-18 1988-03-22 Macdermid, Incorporated Method for manufacture of printed circuit boards
US4806200A (en) * 1986-06-18 1989-02-21 Macdermid, Incorporated Method for manufacture of printed circuit boards
ZA873845B (en) * 1986-06-18 1987-11-24 Macdermid, Incorporated Method for manufacture of printed circuit boards
DE3738307A1 (de) * 1987-11-11 1989-05-24 Ruwel Werke Gmbh Badloesungen und verfahren zum entfernen von blei/zinn-, blei- bzw. zinnschichten auf kupfer- oder nickeloberflaechen
US4957653A (en) * 1989-04-07 1990-09-18 Macdermid, Incorporated Composition containing alkane sulfonic acid and ferric nitrate for stripping tin or tin-lead alloy from copper surfaces, and method for stripping tin or tin-lead alloy
US4944851A (en) * 1989-06-05 1990-07-31 Macdermid, Incorporated Electrolytic method for regenerating tin or tin-lead alloy stripping compositions
US4921571A (en) * 1989-07-28 1990-05-01 Macdermid, Incorporated Inhibited composition and method for stripping tin, lead or tin-lead alloy from copper surfaces
US4956035A (en) * 1989-08-01 1990-09-11 Rd Chemical Company Composition and process for promoting adhesion on metal surfaces
JPH0375386A (ja) * 1989-08-18 1991-03-29 Metsuku Kk 錫又は錫‐鉛合金の剥離方法
US5017267A (en) * 1990-07-17 1991-05-21 Macdermid, Incorporated Composition and method for stripping tin or tin-lead alloy from copper surfaces
DE4113283C2 (de) * 1991-04-24 1994-05-05 Kernforschungsz Karlsruhe Verwendung einer Ätzlösung zum selektiven Abätzen einer metallischen Opferschicht bei der Herstellung von Mikrostrukturen
DE4219667C2 (de) * 1992-06-16 1994-12-01 Kernforschungsz Karlsruhe Werkzeug und Verfahren zur Herstellung einer mikrostrukturierten Kunststoffschicht
JP2003277999A (ja) * 2001-10-11 2003-10-02 Shipley Co Llc 剥離溶液
CN100339014C (zh) * 2003-03-27 2007-09-26 中国人民解放军第三军医大学 N－乙酰氨基葡萄糖在乳制品中的应用及包含n－乙酰氨基葡萄糖的乳制品
DE102004014680B3 (de) * 2004-03-25 2005-07-28 Dr.-Ing. Max Schlötter GmbH & Co KG Entmetallisierungslösung und deren Verwendung
EP2503029B1 (en) * 2011-03-22 2013-03-20 Atotech Deutschland GmbH Process for etching a recessed structure filled with tin or a tin alloy
CN111705216B (zh) * 2020-06-16 2021-12-03 云南锡业股份有限公司锡业分公司 一种焊锡电解阳极泥的处理工艺
WO2025241030A1 (en) * 2024-05-22 2025-11-27 Innovation Mining Inc. Methods employing thiourea for metal extraction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157323A (en) * 1984-04-02 1985-10-23 Parker Chemical Co Improved flavour aluminium cleaning composition and process

Also Published As

Publication number Publication date
CA923024A (en) 1973-03-20
US3677949A (en) 1972-07-18
FR2102030A5 (enExample) 1972-03-31
ES394816A1 (es) 1974-11-16
DE2143785A1 (de) 1972-03-16
JPS5017336B1 (enExample) 1975-06-20

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed