SE8800928D0 - METHOD OF REMOVING ORGANIC AND INORGANIC REMAINS IN A SOIL PROCESS - Google Patents

METHOD OF REMOVING ORGANIC AND INORGANIC REMAINS IN A SOIL PROCESS

Info

Publication number
SE8800928D0
SE8800928D0 SE8800928A SE8800928A SE8800928D0 SE 8800928 D0 SE8800928 D0 SE 8800928D0 SE 8800928 A SE8800928 A SE 8800928A SE 8800928 A SE8800928 A SE 8800928A SE 8800928 D0 SE8800928 D0 SE 8800928D0
Authority
SE
Sweden
Prior art keywords
washing
removing organic
soldering process
soldering
soldered
Prior art date
Application number
SE8800928A
Other languages
Swedish (sv)
Other versions
SE458837B (en
Inventor
B A Tolvgard
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE8800928A priority Critical patent/SE458837B/en
Publication of SE8800928D0 publication Critical patent/SE8800928D0/en
Priority to FI891127A priority patent/FI89685C/en
Priority to DE19893908514 priority patent/DE3908514C2/en
Publication of SE458837B publication Critical patent/SE458837B/en

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
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3489—Composition of fluxes; Methods of application thereof; Other methods of activating the contact surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • B23K1/203—Fluxing, i.e. applying flux onto surfaces

Abstract

The invention relates to a method for removing organic and inorganic residual products prior to a soldering process. According to a known method, the steps of a) flux treatment for removing oxides, residues of acid, and grease (fat), b) heating, c) soldering, and d) washing of the object to the soldered, e.g. a printed circuit take place. According to the proposed method, the washing is carried out immediately prior to the soldering process, which thus constitutes the last process step. Washing can be carried out with water in two stages, the areas to be soldered being coated, in the last washing stage, with a carrier/solvent for surface protection, in order to prevent oxidation prior to the soldering process. <IMAGE>
SE8800928A 1988-03-15 1988-03-15 PROCEDURE TO REMOVE POLLUTION POLLUTANTS FROM A PURPOSE, EXAMPLE A CIRCUIT TO BE LOADED SE458837B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8800928A SE458837B (en) 1988-03-15 1988-03-15 PROCEDURE TO REMOVE POLLUTION POLLUTANTS FROM A PURPOSE, EXAMPLE A CIRCUIT TO BE LOADED
FI891127A FI89685C (en) 1988-03-15 1989-03-09 METHOD ATT I EN LOEDPROCESS AVLAEGSNA ORGANISKA OCH OORGANISKA RESTER
DE19893908514 DE3908514C2 (en) 1988-03-15 1989-03-15 Process for removing organic and inorganic residues in a soldering process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8800928A SE458837B (en) 1988-03-15 1988-03-15 PROCEDURE TO REMOVE POLLUTION POLLUTANTS FROM A PURPOSE, EXAMPLE A CIRCUIT TO BE LOADED

Publications (2)

Publication Number Publication Date
SE8800928D0 true SE8800928D0 (en) 1988-03-15
SE458837B SE458837B (en) 1989-05-16

Family

ID=20371695

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8800928A SE458837B (en) 1988-03-15 1988-03-15 PROCEDURE TO REMOVE POLLUTION POLLUTANTS FROM A PURPOSE, EXAMPLE A CIRCUIT TO BE LOADED

Country Status (3)

Country Link
DE (1) DE3908514C2 (en)
FI (1) FI89685C (en)
SE (1) SE458837B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1248383B (en) * 1991-05-09 1995-01-11 Aldo Castoldi PROCESS AND EQUIPMENT FOR THE WELDING OF THE COMPONENTS ON PLATES OF CIRCUITS PRINTED THROUGH THE BATH OF WELDING ALLOYS
US5232562A (en) * 1991-12-16 1993-08-03 Electrovert Ltd. Electrochemical reduction treatment for soldering

Also Published As

Publication number Publication date
FI89685C (en) 1993-11-10
DE3908514A1 (en) 1989-09-28
FI891127A0 (en) 1989-03-09
SE458837B (en) 1989-05-16
DE3908514C2 (en) 1997-08-21
FI89685B (en) 1993-07-30
FI891127A (en) 1989-09-16

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