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GB1299455A - Copper plating process for printed circuits - Google Patents

Copper plating process for printed circuits

Info

Publication number
GB1299455A
GB1299455A GB6313469A GB6313469A GB1299455A GB 1299455 A GB1299455 A GB 1299455A GB 6313469 A GB6313469 A GB 6313469A GB 6313469 A GB6313469 A GB 6313469A GB 1299455 A GB1299455 A GB 1299455A
Authority
GB
United Kingdom
Prior art keywords
copper plating
electro
instant coffee
copper
plating process
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
GB6313469A
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.)
Kewanee Oil Co
Original Assignee
Kewanee Oil Co
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 Kewanee Oil Co filed Critical Kewanee Oil Co
Publication of GB1299455A publication Critical patent/GB1299455A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/38Electroplating: Baths therefor from solutions of copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

1299455 Electro-depositing copper KEWANEE OIL CO 29 Dec 1969 [27 Jan 1969] 63134/69 Heading C7B Smooth and ductile copper is electro-deposited e.g. into the drilled holes of printed circuit boards of paper-epoxy or -phenolic or epoxyglass cloth, by electrolyzing an aqueous acid copper plating solution comprising 75-150 g/l CuSO 4 5H 2 O, 150-250g/l H 2 SO 4 and one or more of the grain refiners: molasses, instant coffee, decaffinated instant coffee, caffeine, gum arabic, polyethyleneglycol, commercial sodium metanilate, benzoquinone and concentrated sulphite pulp process waste, at a C.D. of 15-60 A.S.F. 1-10 cc/l H 3 PO 4 and 10-150 ppm Cl ion may also be added. Comparison solutions are specified containing Cu 2 P 2 O 7 and K 4 P 2 O 7 or Cu(BF 4 ) 2 , HBF 4 and coumarin.
GB6313469A 1969-01-27 1969-12-29 Copper plating process for printed circuits Expired GB1299455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79434869A 1969-01-27 1969-01-27

Publications (1)

Publication Number Publication Date
GB1299455A true GB1299455A (en) 1972-12-13

Family

ID=25162389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6313469A Expired GB1299455A (en) 1969-01-27 1969-12-29 Copper plating process for printed circuits

Country Status (5)

Country Link
JP (1) JPS5031534B1 (en)
DE (1) DE2003539B2 (en)
FR (1) FR2029481B1 (en)
GB (1) GB1299455A (en)
NL (1) NL7000767A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242181A (en) * 1979-11-09 1980-12-30 The Harshaw Chemical Company Copper plating process for printed circuit boards

Also Published As

Publication number Publication date
JPS5031534B1 (en) 1975-10-13
NL7000767A (en) 1970-07-29
DE2003539A1 (en) 1971-02-11
DE2003539B2 (en) 1976-09-23
FR2029481A1 (en) 1970-10-23
FR2029481B1 (en) 1974-09-06

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee